ASME B16.9 Archives | Quality Manufacturer of Industrial Pipe Fittings

ASTM A234 WPB Custom Butt Weld Elbows | 90 & 180 Degree

zhao77jie — Mon, 09 Feb 2026 03:30:42 +0000

On 8^th December 2025, we once again received message from one of our regular customers. The customer has ordered several batches of elbows during past years. This time the client required some replenishment of 90 and 180 deg elbows as the same specification of last order. Thus we double-checked client’s drawings and ASME B16.9 standard and took notes of what the client paid more attention to. One week later, we arranged manufacturing as per client’s request. Since the elbows are produced based on client’s drawings, we offered detailed inspection photos for them before shipment.

Goods list

ITEM	DESCRIPTION	QTY	UNIT
1	Elbow 180 BW 3″ SCH80 A234 WPB as per drawing	370	pcs
2	Elbow 90 LR BW 3″ SCH 80 A234 WPB as per drawing	105	pcs

Packing Photos

What Custom WPB Butt Weld Elbow refers?

ASTM A234 WPB custom BW elbow is a carbon steel pipe fitting tailored for pipeline direction changes, complying with ASME B16.9 standards. Made of high-quality ASTM A234 WPB carbon steel, it features excellent weldability and pressure resistance, suitable for custom 90 & 180 degree angles, radius, and wall thickness. This fitting is widely used in oil, gas, and petrochemical pipelines with beveled ends for seamless butt welding and stable structural performance under high-temperature and high-pressure working conditions.

Why Choose ASTM A234 WPB

ASTM A234 WPB is the first choice for custom butt weld elbows (90 & 180 degree) due to its superior comprehensive performance. This carbon steel material features excellent weldability, formability, and medium pressure resistance—suitable for various custom forming processes. It also offers cost advantages over alloy steel, with wide availability and mature manufacturing technology. For industrial pipelines requiring custom angles and specifications, ASTM A234 WPB balances performance, customization, and economic efficiency perfectly.

90 Degree vs 180 Degree

90 and 180 degree elbows are the two most common custom angles, both manufactured to ASME B16.9 dimensional tolerances. The 90 degree elbow is for 90° pipeline turns, ideal for tight space layouts. While the 180 degree elbow (U-bend) suits pipeline reverse direction needs. All fittings retain ASTM A234 WPB core properties: good corrosion resistance and weld strength, with customizable long/short radius for different flow rate requirements in industrial pipelines.

Custom Specifications of Elbows

Our ASTM A234 WPB custom butt weld elbows support full specification customization under ASME B16.9 standards, covering DN15-DN1200 caliber, Sch40/Sch80 wall thickness, and 90/180 degree angles. We also customize beveled end size, length, and surface treatment (e.g., anti-rust painting) based on customer requirements. All custom parameters are designed to match ASTM A234 WPB weldability and mechanical properties, ensuring the fitting integrates perfectly with existing carbon steel pipeline systems.

Core Advantages of Custom Elbows

ASTM A234 WPB custom butt weld elbows combine the core advantages of WPB material and personalized customization. Key benefits include excellent weldability, high pressure/corrosion resistance. And it perfectly match with customer pipeline layouts via 90/180 degree, radius, and thickness customization. The seamless hot forming process ensures structural stability, while the carbon steel material offers cost-effectiveness and wide industrial applicability.

Application Scenarios

ASTM A234 WPB 90/180 degree butt weld elbows are widely used in industrial pipeline systems globally, mainly in oil and gas exploration/transmission, petrochemical refineries, power generation plants, and water treatment projects. They are suitable for medium-temperature and medium-high pressure pipelines transporting oil, gas, water, and other non-corrosive media. The custom angle and radius design make them adaptable to complex pipeline layouts. Meanwhile, material performance of ASTM A234 WPB ensures long-term stable operation.

How to Customize Your Butt Weld Elbow?

Customizing butt weld elbows (90/180 degree) is a simple, standardized process, with all products manufactured to ASME B16.9 standards.

First, provide your core requirements: angle (90/180°), radius (long/short), caliber (DN), wall thickness (Sch40/Sch80), and application conditions.

Second, engineer confirms the custom design and provides a technical drawing for your approval.

Finally, we start production exactly based on your drawings, conduct strict quality inspection, and deliver the finished product with a full quality certificate—supporting one-stop custom fitting solutions.

The post ASTM A234 WPB Custom Butt Weld Elbows | 90 & 180 Degree appeared first on Quality Manufacturer of Industrial Pipe Fittings.

How to Calculate the Weight of a Tee

zhao77jie — Thu, 16 Oct 2025 02:00:00 +0000

In pipeline engineering, tees serve as critical branching fittings whose weight directly impacts transportation costs, installation load-bearing designs, and material budgets. Whether project estimators are calculating costs, procurement personnel are comparing supplier quotes, or installers are planning construction schemes, accurately determining tee weights is essential. However, many struggle with tee weight calculation methods. This article provides a free tee weight calculation chart to help you efficiently solve weight estimation challenges.

What is a Pipe Tee?

A Pipe Tee is a butt weld pipe fitting that connects three pipes together, typically featuring one main port and two branch ports arranged in a “T” shape.

The two common types are:

Equal Tee: All three ports have the same diameter.

Reducing Tee: The branch port diameter is smaller than the main port diameter.

Why is it necessary to calculate the weight of a Tee?

Accurate calculation of tee weights is fundamental to professional piping engineering, primarily for the following reasons:

Cost Estimation: Steel is typically priced by weight. Precise weight calculations are essential for controlling procurement costs.

Transportation and Logistics: Determining total weight enables selection of appropriate shipping methods and calculation of freight costs.

Structural Design: In high-rise or complex pipe rack designs, the weight of fittings directly impacts the load-bearing capacity of supports and the overall structure.

Inventory Management: Accurate weight records for different tee specifications facilitate efficient inventory tracking and management.

Weight Calculation Formula for ASME B16.9 Tee

The weight of a tee fitting can be approximated using the following formula:

if the branch size is reducing one size, it will be 0.94 times of equal tee weight.

if the branch size is reducing two size, it will be 0.91 times of straight tee weight.

if the branch size is reducing three size, it will be 0.89 times of equal tee weight.

Calculation formula: 0.02466 * (S + 1.5) * [D – (S + 1.5)] * (3C – D/2) / 1000. Where: S = wall thickness (mm), D = outer diameter (mm), and C = center-to-end dimension.

Example:

Calculating the Weight of a 6″ Equal Tee (ASME B16.9)

Suppose we need to calculate the theoretical weight of a 6″ Sch 40 equal tee.

According to the standard table (ASME B16.9):

Outer Diameter D = 168.3 mm

Wall Thickness S = 7.11 mm

Center-to-Face Dimension C = 143 mm

The formula is as follows:

Weight (kg) = 0.02466 × (S + 1.5) × [D − (S + 1.5)] × (3C − D/2) / 1000

Substituting values:

=0.02466×(7.11+1.5)×[168.3−(7.11+1.5)]×(3×143−168.3/2)/1000

=0.02466×8.61×159.69×348.85/1000

≈11.7 kg

Free Download! Automatic Tee Weight Calculation Chart

To help you quickly and accurately calculate the weight of various tee specifications, we’ve compiled a professional theoretical weight chart for seamless tees.

Click the link below to download it for free:

>> Free Download: Pipe Tee Weight Chart (PDF) <<

Free Download: Tee Volume Chart

To help engineers and procurement personnel streamline design and weight calculations, we’ve compiled a dedicated Tee Volume Chart.

This chart covers equal-diameter tees in various sizes (½“ to 60”) and lists volume data for each model, enabling quick theoretical weight estimates or material inventory tracking.

Click the button below to download for free:

>> Free Download: Pipe Tee volume Chart (PDF) <<

Nominal Size		SCH20	SCH30	STD	SCH40	SCH60	XS	SCH80	SCH100	SCH120	SCH140	SCH160	XXS
DN	NPS	SCH20	SCH30	STD	SCH40	SCH60	XS	SCH80	SCH100	SCH120	SCH140	SCH160	XXS
15	1/2	–	0.15	0.16	0.16	–	0.20	0.20	–	–	–	0.25	0.35
20	3/4	–	0.18	0.20	0.20	–	0.30	0.30	–	–	–	0.35	0.45
25	1	–	0.27	0.28	0.28	–	0.45	0.45	–	–	–	0.54	0.77
32	1 1/4	–	0.46	0.55	0.55	–	0.70	0.70	–	–	–	0.91	1.26
40	1 1/2	–	0.68	0.78	0.78	–	1.25	1.25	–	–	–	1.39	1.83
50	2	–	0.96	1.17	1.17	–	1.61	1.61	–	–	–	2.39	2.89
65	2 1/2	–	2.06	2.21	2.21	–	2.92	2.92	–	–	–	3.81	5.21
80	3	–	2.87	3.23	3.23	–	4.42	4.42	–	–	–	6.17	8.01
90	3 1/2	–	3.65	4.33	4.33	–	5.95	5.95	–	–	–	–	–
100	4	–	4.56	5.68	5.68	–	7.88	7.88	–	10.0	–	11.8	14.5
125	5	–	–	9.08	9.08	–	12.9	12.9	–	16.8	–	20.5	24.0
150	6	–	–	13.6	13.6	–	20.5	20.5	–	26.1	–	32.5	38.1
200	8	17.5	22.0	25.5	25.5	31.8	38.7	38.7	45.4	54.1	60.4	66.6	64.6
250	10	28.0	37.1	44.8	44.8	59.2	59.2	69.7	83.3	96.6	113	125	113
300	12	42.6	55.7	63.1	68.1	93.0	83.2	112	137	160	178	204	160
350	14	64.5	76.3	76.3	88.7	119	101	148	183	211	238	264	–
400	16	78.2	95.7	95.7	126	164	126	191	252	294	342	375	–
450	18	102	141	121	179	237	160	269	357	419	471	529	–
500	20	168	198	150	235	317	190	365	489	566	651	724	–
550	22	185	241	182	–	414	241	482	636	743	846	947	–
600	24	222	305	205	340	516	272	589	796	930	1046	1174	–
650	26	340	–	254	–	–	337	–	–	–	–	–	–
700	28	390	478	289	–	–	383	–	–	–	–	–	–
750	30	420	549	332	–	–	441	–	–	–	–	–	–
800	32	480	627	379	631	–	503	–	–	–	–	–	–
850	34	540	709	429	714	–	569	–	–	–	–	–	–
900	36	610	796	481	872	–	639	–	–	–	–	–	–
950	38	–	–	537	–	–	713	–	–	–	–	–	–
1000	40	–	–	598	–	–	791	–	–	–	–	–	–
1050	42	–	–	636	–	–	846	–	–	–	–	–	–
1100	44	–	–	712	–	–	946	–	–	–	–	–	–
1150	46	–	–	779	–	–	995	–	–	–	–	–	–
1200	48	–	–	850	–	–	1080	–	–	–	–	–	–
1300	52	–	–	917	–	–	–	–	–	–	–	–	–
1400	56	–	–	1065	–	–	–	–	–	–	–	–	–
1500	60	–	–	1226	–	–	–	–	–	–	–	–	–
1600	64	–	–	1398	–	–	–	–	–	–	–	–	–
1700	68	–	–	1580	–	–	–	–	–	–	–	–	–
1800	72	–	–	1740	–	–	–	–	–	–	–	–	–
1900	76	–	–	1980	–	–	–	–	–	–	–	–	–
2000	80	–	–	2290	–	–	–	–	–	–	–	–	–

Summary

Mastering the weight calculation method for tees not only enhances design accuracy but also facilitates cost control, transportation, and installation.

Whether you require carbon steel, stainless steel, or alloy steel tees, accurate weight data helps optimize your piping system solutions.

The post How to Calculate the Weight of a Tee appeared first on Quality Manufacturer of Industrial Pipe Fittings.

Alloy 625 Pipe Fittings

zhao77jie — Wed, 12 Mar 2025 08:12:49 +0000

Alloy 625 (Nickel Alloy 625) pipe fittings are used in high-temperature, high-pressure, and highly corrosive environments. These fittings are made from nickel-based Alloy 625, which offers exceptional corrosion resistance, high strength, and oxidation resistance across a wide range of temperatures.

The material can perform from cryogenic temperatures up to 1093 degrees Celsius temperatures. There are different types of the fittings such as the Alloy 625 Butt weld Elbow which is used to turn the direction of the line. The elbows come in different angles such as 45 degrees and 90 degrees. The high temperature operation of the material comes from its high melting point of 1350 degrees Celsius.

Is Inconel the same as Alloy 625?

Yes, “Alloy 625” and “Inconel 625” refer to the same nickel-chromium-molybdenum alloy, Inconel is a trademarked name for a family of nickel-based superalloys developed by Special Metals Corporation. Alloy 625 is one of the alloys within the Inconel family and is commonly referred to as Inconel 625.

Trade Name vs. Generic Name:

Inconel is a registered trademark of Special Metals Corporation for a specific group of nickel alloys.

Alloy 625 as the Generic Term:

Because of the trademark, the industry often refers to this specific alloy as simply “Alloy 625,” especially when produced by companies other than Special Metals.

Composition:

Alloy 625, also known as Inconel 625, is a nickel-chromium-molybdenum alloy known for its high strength, resistance to corrosion and oxidation, and ability to handle a wide range of temperatures.

UNS Designation:

It is also identified by the universal designation UNS N06625.

Inconel Alloy 625 Butt weld Pipe Fittings Specification

Specifications	ASTM B366 / ASME SB366
Size	Seamless Butt Weld Fittings: 1/2″ – 10″, Welded Butt Weld Fittings: 1/2″ – 48″
Standards	ASME/ANSI B16.9, ASME B16.28, MSS-SP-43
Thickness	5s, 10s, 40s, 80s, 10, 20, 40, STD, 60, 80, XS, 100, 120, 140, 160, XXS available with NACE MR 01-75
Type	Seamless / Welded / Fabricated

Alloy 625 UNS N06625 Single Ferrule Fittings Mechanical Properties

DENSITY	MELTING RANGE	TENSILE STRESS	YIELD STRESS (0.2%OFFSET)	ELONGATION
8.4 g/cm3	1350 °C (2460 °F)	Psi – 1,35,000 , MPa -930	Psi – 75,000 , MPa – 517	42.50%

Nickel Alloy 625 UNS N06625 Fittings Chemical Composition

ALLOY	C	MN	SI	S	AL	TI	FE	NI	CR
INCONEL 625	0.10 max	0.50 max	0.50 max	0.015 max	0.40 max	0.40 max	5.0 max	58.0 min	20.0 – 23.0

Inconel 625 Butt weld Fittings Equivalent Standard

STANDARD	UNS	WNR.	AFNOR	EN	JIS	BS	GOST	OR
Alloy 625	N06625	2.4856	NC22DNB4M	NiCr22Mo9Nb	NCF 625	NA 21	ХН75МБТЮ	ЭИ602

What is the difference between hastelloy C276 and 625 alloy?

Corrosion Resistance:

Hastelloy C-276 is superior in highly acidic, reducing, and aggressive chemical environments.

Alloy 625 is great but performs best in oxidizing environments like seawater and high-temperature exposure.

High-Temperature Performance:

Alloy 625 is better suited for extreme temperatures (up to 1800°F).

Hastelloy C-276 is mostly used for corrosion protection at moderate temperatures (up to 1100°F).

Strength:

Alloy 625 is stronger and better for high-load applications.

Hastelloy C-276 is softer and more ductile, making it easier to weld.

Cost:

Hastelloy C-276 is more expensive due to its higher molybdenum and tungsten content.

Alloy 625 is cheaper but still costly compared to stainless steel.

Applications

Application	Hastelloy C-276	Alloy 625
Chemical Processing	✅ Best choice	✅ Good, but not as resistant
Aerospace (Jet Engines, Turbines)	❌ Not ideal	✅ Best choice
Seawater/Marine Applications	✅ Excellent	✅ Very good
Nuclear Reactors	❌ Less common	✅ Used frequently
Acidic Environments (HCl, H₂SO₄)	✅ Best choice	❌ Less resistant
High-Temperature Use (Above 1200°F/650°C)	❌ Not ideal	✅ Best choice

Nickel Alloy 625 Pipe Elbow Dimensions Chart

NPS	Outside diameter D	45° Long Rad Center to End B	90° Long Rad Center to End A	45°3D Center to End B	90°3D Center to End A
1/2	21.03	16	38
3/4	26.07	19	38	24	57
1	33.04	22	38	31	76
1 1/4	42.02	25	48	39	95
1 1/2	48.03	29	57	47	114
2	60.03	35	76	63	152
2 1/2	73	44	95	79	190
3	88.09	51	114	95	229
3 1/2	101.06	57	133	111	267
4	114.03	64	152	127	305
5	141.03	79	190	157	381
6	168.03	95	229	189	457
8	219.01	127	305	252	610
10	273	159	381	316	762
12	323.08	190	457	378	914
14	355.06	222	533	441	1067
16	406.04	254	610	505	1219

Alloy 625 Butt Weld Fittings Tolerances

TOLERANCES FOR BW FITTINGS
Nominal Size		All Fittings		45°&90° Elbows & Tees, Crosses	3D Radius Elbows	Returns
DN	NPS	OD 3) 4)	ID 3)	A B C M	A B	O	K	U
15-65	1/2 -21/2	+1.6 -0.8	± 0.8	± 2	± 3	± 6	± 6	± 1
80-90	3-31/2	± 1.6	± 1.6	± 2	± 3	± 6	± 6	± 1
100	4	± 1.6	± 1.6	± 2	± 3	± 6	± 6	± 1
125-200	5-8	+2.4 -1.6	± 1.6	± 2	± 3	± 6	± 6	± 1
250-450	10-18	+4.0 -3.2	± 3.2	± 2	± 3	± 10	± 6	± 2
500-600	20-24	+6.4 -4.8	± 4.8	± 2	± 3	± 10	± 6	± 2
650-750	26-30	+6.4 -4.8	± 4.8	± 3	± 6	—	—	—
800-1200	32-48	+6.4 -4.8	± 4.8	± 5	± 6	—	—	—
1300-1500	52-60	+6.4 -4.8	± 4.8	± 5	—	—	—	—
1600-1700	64-68	+6.4 -4.8	± 4.8	± 5	—	—	—	—
1800-2000	72-80	+6.4 -4.8	± 4.8	± 5	—	—	—	—

What is the difference between SS316 and Alloy625?

Material Type:

SS316 is a stainless steel (mainly iron-based).

Alloy 625 is a nickel-based superalloy.

Corrosion Resistance:

SS316 has excellent resistance to corrosion, especially in chloride-rich environments, but Alloy 625 outperforms it in more aggressive, extreme conditions like high-temperature and high-pressure environments.

Temperature Resistance:

SS316 can withstand temperatures up to about 870°C (1600°F).

Alloy 625 can endure much higher temperatures, making it suitable for applications in more extreme conditions (up to 980°C or 1800°F).

Strength & Toughness:

Alloy 625 provides better high-temperature strength and toughness, especially in environments that require resistance to thermal cycling, while SS316 is good for general use but doesn’t offer the same level of performance at high temperatures.

Cost:

SS316 is generally less expensive than Alloy 625, which is a more specialized and high-performance material.

Key Differences:

Feature	Inconel 625	316 Stainless Steel
Base Metal	Nickel	Iron
Strength & Toughness	High strength, toughness, and resistance to creep and fatigue at elevated temperatures	Good strength, toughness, and resistance to corrosion in a variety of environments
Corrosion Resistance	Exceptional resistance to pitting, crevice, and stress corrosion cracking, especially in chloride-rich and acidic environments	Good corrosion resistance in various environments, but not as resistant as Inconel 625 to extreme conditions
High-Temperature Properties	Excellent resistance to oxidation, carburization, and creep at high temperatures	Good, but not as high as Inconel 625
Composition	Primarily nickel, chromium, molybdenum, and niobium	Primarily iron, chromium, nickel, and molybdenum

Is alloy better than Aluminium?

Aluminum itself is a metal, but it’s often alloyed with other elements to improve its properties. On the other hand, “alloy” can refer to any metal mixture, including high-performance materials like stainless steel, titanium alloys, or nickel-based superalloys (e.g., Inconel 625, Hastelloy, etc.).

Comparing Aluminum vs. Alloys

Property	Aluminum	Other Alloys (Steel, Nickel, Titanium, etc.)
Weight	Very lightweight (2.7 g/cm³)	Generally heavier (e.g., steel ~7.8 g/cm³, titanium ~4.5 g/cm³)
Strength	Good, but weaker than many alloys	Stronger in most cases (e.g., stainless steel, Inconel)
Corrosion Resistance	Excellent, but can oxidize	Some alloys (stainless steel, titanium) have better corrosion resistance
Temperature Resistance	Limited (melts at ~660°C)	Many alloys withstand much higher temperatures
Cost	Generally cheaper	High-performance alloys (Inconel, titanium) are more expensive
Machinability	Easy to work with	Depends on the alloy (some are harder to machine)

When is Aluminum Better?

Lightweight applications → Aircraft, cars, bicycles, aerospace

Good corrosion resistance → Marine parts, outdoor structures

Cost-sensitive applications → Consumer products, packaging

When Are Other Alloys Better?

High-strength applications → Steel for construction, tools, machinery

Extreme heat resistance → Inconel and titanium for jet engines, turbines

Chemical resistance → Hastelloy for harsh chemical environments

Key Features of Alloy 625 Pipe Fittings:

✅ Excellent Corrosion Resistance – Performs well in seawater, acidic, and oxidizing environments.
✅ High-Temperature Strength – Can withstand up to 1800°F (980°C) without losing mechanical integrity.
✅ Resistant to Pitting & Crevice Corrosion – Ideal for marine and chemical processing applications.
✅ Good Weldability – Can be easily welded without risk of sensitization or intergranular corrosion.
✅ High Strength & Toughness – Even at elevated temperatures and extreme conditions.

Applications of Alloy 625 Pipe Fittings

● Aerospace

● Marine & Offshore

● Chemical Processing

● Power Plants

● Heat Exchangers & Boilers

● Petrochemical & Refineries

You can get an offer for products in below material forms:

-Pipe and Tube (EN 10216-5, ASTM A213, ASTM A249, A312, A790,)

-Forged Fitting and Flange (ASTM A182 , ASTM A105,ASTM B564 )

-Butt Weld Fittings (ASTM A234, ASTM A403,ASTM A815)

-Round bar , Billet (ASTM A276, ASTM A479)

– Plate, Sheet, Strip(ASTM A240, EN 10028-7, A480)

-Bolting, Nuts（ASTM A193, A194, A320）

Alloy 625 Pipe Fittings Exported Countries

We Export Alloy 625 Pipe Fittings to Saudi Arabia, United Arab Emirates, Qatar, Bahrain, Oman, Kuwait, Turkey, Egypt, Yemen , Syria, Jordan, Cyprus, Singapore, Malaysia, Indonesia, Thailand, Vietnam, South Korea, Japan, Sri Lanka, Maldives, Bangladesh, Cambodia, Argentina, Bolivia, Brazil, Venezuela, Colombia, Ecuador, Guyana, Paraguay, Uruguay, United States Of America, Canada, Mexico, Panama, Jamaica, Bahamas, Denmark, Norway, Germany, France,Italy, United Kingdom, Spain, Belgium, Greece, Czech Republic, Portugal, Hungary, Albania, Austria, Finland, Ireland, Croatia, Malta, Nigeria, Algeria, Angola, South Africa, Libya, Egypt, Sudan, Europe, Africa, Asia, North America, South America, Middle East.etc

The post Alloy 625 Pipe Fittings appeared first on Quality Manufacturer of Industrial Pipe Fittings.

Classification of Carbon Steel 90 Degree Elbow

zhao77jie — Tue, 11 Jun 2024 03:12:17 +0000

Carbon Steel 90 Degree Elbow

Carbon steel 90 degree elbow is a common type of pipe fittings, and common connection methods include butt welding, thread, and socket weld. We manufacture according to ASME B16.9 and B16.11 standards. ASTM A234 WPB elbow is a commonly used elbow in the petroleum and natural gas industry.

We have supplied our butt weld fittings to major customers which business in Oil & Gas, Chemical & Petrochemical, Water treatment, Nuclear & Power Plant, Offshore platform & Shipbuilding. Our products are applicable for any kinds of severe operating condition such as high pressure and high temperature or cryogenic condition.

ASTM A105 90 Degree Elbow

ASTM A105 is mainly made of carbon steel material grade, and they are used for making forged pipe fittings. Carbon Steel 90 degree elbow is used to change the direction of pipeline flow.Forged 90 degree elbow is used for pipes with smaller diameters, and they are ideal to be used in a high-temperature application in a pressure system. We manufacture ASTM A105 elbow, which is very easy to use and needs low maintenance. It is one of the main reasons behind its popularity in various industries.

Threaded 90 Degree Elbow
Size range: 1/8″ – 4″
Pressure range: Class 2000 3000 6000

Socket Weld 90 Degree Elbow
Size range: 1/8″- 4″
Pressure range: Class 3000 6000 9000

Chemical Composition

CHEMICAL	LIMITS	C	Mn	P	S	Si	Cu	Ni	Cr	Mo	V
ASTM A105	MIN		0.60			0.10
ASTM A105	MAX	0.35	1.05	0.035	0.040	0.35	0.40	0.40	0.30	0.12	0.08

Mechanical Properties

MATERIAL	T.S (MPA)	Y.S (MPA)	EL %	R/A %	HARDNESS
ASTM A105	485 min	250 min	22 min	30 min	197 max

Dimension of Threaded Elbow

Nominal Size		Center-to-End				Outside Diameter of Band		Wall Thickness		Length of Thread
DN	NPS	A				H		Gmin		L 5 min	L 2 min
		90°Elbows		45°Elbows		H		Gmin
		3000	6000	3000	6000	3000	6000	3000	6000
6	1/8	21	25	17	19	22	25	3.18	6.35	6.4	6.7
8	1/4	25	28	19	22	25	33	3.30	6.60	8.1	10.2
10	3/8	28	33	22	25	33	38	3.51	6.98	9.1	10.4
15	1/2	33	39	25	28	38	46	4.09	8.15	10.9	13.6
20	3/4	38	44	28	33	46	56	4.32	8.53	12.7	13.9
25	1	44	51	33	35	56	62	4.98	9.93	14.7	17.3
32	11/4	51	60	35	43	62	75	5.28	10.59	17.0	18.0
40	11/2	60	64	43	44	75	84	5.56	11.07	17.8	18.4
50	2	64	83	44	52	84	102	7.14	12.09	19	19.2
65	21/2	83	95	52	64	102	121	7.65	15.29	23.6	28.9
80	3	95	106	64	79	121	146	8.84	16.64	25.9	30.5
100	4	114	114	79	79	152	152	11.18	18.67	27.7	33

Dimension of Socket Weld Elbow

DN	NPS	B	G			C
			3000	6000	9000	3000		6000		9000
			3000	6000	9000	ave	min	ave	min	ave	min
6	1/8	10.9	2.41	3.15	一	3.18	3.18	3.96	3.43	一	一
8	1/4	14.3	3.02	3.68	一	3.78	3.30	4.60	4.01	一	一
10	3/8	17.7	3.20	4.01	一	4.01	3.50	5.03	4.37	一	一
15	1/2	21.9	3.73	4.78	7.47	4.67	4.09	5.97	5.18	9.53	8.18
20	3/4	27.3	3.91	5.56	7.82	4.90	4.27	6.96	6.04	9.78	8.56
25	1	34.0	4.55	6.35	9.09	5.69	4.98	7.92	6.93	11.38	9.96
32	11/4	42.8	4.85	6.35	9.70	6.07	5.28	7.92	6.93	12.14	10.62
40	11/2	48.9	5.08	7.14	10.15	6.35	5.54	8.92	7.80	12.70	11.12
50	2	61.2	5.54	8.74	11.07	6.93	6.04	10.92	9.50	13.84	12.12
65	21/2	73.9	7.01	一		8.16	7.62		一	一
80	3	89.9	7.62	一		9.52	8.30	一	一
100	4	115.5	8.56	一		10.69	9.35			一

ASTM A234 Carbon Steel 90 Degree Elbow

ASTM A234 is standard specification for wrought carbon steel & alloy steel pipe fittings which covers seamless and welded types.

The specification for the carbon steel 90 degree elbow, covers steel pipe fittings such as the carbon steel elbow A234 WPB which are primarily used in applications for the pressure piping systems. Generally these Elbow A234 Wpc fittings are designed to be used in moderate and high temperature applications . The A234 SR elbow is the standard of pipe fittings material, which indicates the materials properties of different kinds of carbon steel and alloy steel. One such steel grade in this standard is the WPB . In the term WPB, W means weldable, P stands for pressure, while B is grade b. B refers to the minimum yield strength, such as the ASTM A106/A53 Gr.B or API 5L Gr.B. A234 WPB, which is the most common material used in the manufacture of carbon steel pipe fittings.

W = WELDABLE / wrought

P = RELATED TO P NUMBER OF ALLOY MATERIAL

B = REFER TO MINIMUM YIELD OF MATERIAL

Long Radius & Short Radius Elbow

There are two main types of 90 degree elbows long radius (LR) and short radius (SR) elbows. Long-radius elbows have a longer center line radius than the pipe diameter, making them less abrupt in the change of direction. They are mainly used in low-pressure and low-velocity systems.

Long Radius Carbon Steel 90 Degree Elbow

Fittings that change direction in a piping system are called elbows which available in 90 degree long radius elbow. Both of them has the center line at 1.5 x NPS from elbow end.

Short Radius Carbon Steel 90 Degree Elbow

Short radius elbow almost same as above long radius, The difference is center line to end is 1 x NPS and available in 90 degree only.

Chemical Composition

CHEMICAL	LIMITS	C	Mn	P	S	Si	Cr	Mo	Ni	Cu	V
ASTM A234 WPB	MIN		0.29			0.10
ASTM A234 WPB	MAX	0.30	1.06	0.050	0.058		0.40	0.15	0.40	0.40	0.08

Mechanical Properties

MATERIAL	T.S (MPA)	Y.S (MPA)	EL %	R/A %	HARDNESS
ASTM A234 WPB	415 min	240 min	22 min	30 min	197 max

Dimension of Butt Weld Elbow

DN	NPS	OD(MM)	A
DN	NPS	OD(MM)	LR	SR
15	1/2	21.3	38	25
20	3/4	26.7	38	25
25	1	33.4	38	25
32	1-1/4	42.2	48	32
40	1-1/2	48.3	57	38
50	2	60.3	76	51
65	2-1/2	73	95	64
80	3	88.9	114	76
90	3-1/2	101.6	133	89
100	4	114.3	152	102
125	5	141.3	190	127
150	6	168.3	229	152
200	8	219.1	305	203
250	10	273	381	254
300	12	323.8	457	305
350	14	355.6	533	356
550	22	559	838	559
600	24	610	914	610
650	26	660	991	660
700	28	711	1067	711
750	30	762	1143	762
800	32	813	1219	813
850	34	864	1295	864
900	36	914	1372	914
950	38	965	1447	965
1000	40	1016	1524	1016
1050	42	1067	1600	1067
1100	44	1118	1676	1118
1150	46	1168	1753	1168
1200	48	1219	1829	1219
1300	52	1321	1981	1321
1400	56	1422	2134	1422
1500	60	1524	2286	1524
1600	64	1626	2438	1626

Carbon steel butt weld fittings use seamless or welded pipe as starting material and process to the shape of elbows, tees & reducers by hot and cold forming.

China manufacturer supplies various of carbon steel butt weld fittings, they are 90 degree elbow, straight and reducing tee, concentric and eccentric reducer, cap, stub end. Why more and more people choose butt welding even if the operation is difficult?

Leak proof and Strong

Good Strength

Corrosion Resistance

Low Cost

Universal and Economical

Large Output

Wild Application

The post Classification of Carbon Steel 90 Degree Elbow appeared first on Quality Manufacturer of Industrial Pipe Fittings.

8″ x 4″ Concentric Reducer Order from USA

zhao77jie — Thu, 12 Nov 2020 03:28:04 +0000

American customer continues to buy CONCENTRIC REDUCER SEAMLESS 8″ x 4″ / THK 0.325″ X 0.375″ HEIGHT 6″ ASTM A234 WPB ASEM B16.9 from ZIZI ENGINEERING.

A concentric reducer is used to join pipe sections or tube sections on the same axis. The concentric reducer is cone-shaped, and is used when there is a shift in diameter between pipes.

Inpection of 8″ X 4″ Concentric Pipe Reducer

The concentric pipe reducer is produced according to ASME B16.9 Standard, it covers overall dimensions, tolerances, ratings, testing, and markings for factory-made wrought buttwelding fittings in sizes NPS 1 ∕ 2 through NPS 48 (DN 15 through DN 1200). It covers fittings of any producible wall thickness.

Concentric Reducer 8″ x 4″ / Thk 0.325″ X 0.375″ Height 6″ in millimetre size is OD219.1 x 114.3 / T 8.25 x 9.5mm – H152.4mm. The tolerance is stated in ASME B16.9 as following
OD 219.1 +2.4mm / -1.6mm
OD 114.3 +1.6mm
T 8.25 x 9.5mm ( ± 12.5%)
H 152.4 + 2mm

Inspection of 8 x 4 Concentric Reducer

The actual size is 220.1 x 114.5mm / 8.33mm x 9.72mm- H 153.2mm after our inspection. They are toally in tolerance.

How to Pack Carbon Steel Concentric Reducer

We do blasting and painting for carbon steel ASTM A234 WPB concentric reducer fittings against rust during the shipment. After the primer is dried, wrapping the plstick film on the body of reducing fittings. Finally line them into wooden case accordingly.

Seamless Concentric Reducer

Carbon Steel Concentric Reducer

ASTM A234 WPB Datasheet

Chemical Composition % max

Grade	C	Si	Mn	P	S	Cr	Ni	Mo	Cu	V
WPB	0.3	0.1min	0.29-1.06	0.05	0.058	0.4	0.15	0.15	0.4	0.08

Mechnical Properties

Grade	T.S Mpa min	Y.S Mpa min	EL. % min	HB max
WPB	415-655	240	22	197

Addtional Service

Checking Sea Freight or Air Freight.
Marking Weight and Dimensions.
Providing Datasheet Drawing.
Sending Sample Certificate.
Marking OEM

The post 8″ x 4″ Concentric Reducer Order from USA appeared first on Quality Manufacturer of Industrial Pipe Fittings.