A815 UNS S31803 Elbow Fittings

ASTM A815 UNS S31803 is specification for duplex stainless steel fittings of seamless and welded construction, it consists elbow, reducer, tee and stud end.

Quality leading manufacturer Zizi offers super duplex stainless steel butt weld fittings for Singapore. Seamless ppe fittings are available in a variety sizes and plays a important role in the piping system.

ASTM A815 Duplex Butt Weld Fittings are widely used diverse industries. Fittings and Flanges of S 31803 are made available on request of customers.

Duplex A815 UNS S31803 Elbow Fittings Dimensions

 

Standard: ASME/ANSI B16.9

Size: 1/8″ to 24″

Thickness: Sch 10s, 20, STD, 40S, XS, 80S, 120, 160

Technical: Seamless and Weld Elbow

Surface: Pickling and Solution Heat Treatment.

Material Grades: UNS S 31803, S 32205, S 32550, S 32750, S 32760

What are Similar Grades to UNS S31803 Fittings

2205

EN 1.4462Z

UNS S31803

UNS S32205

BS 318S13

318

How Many Types of Steel Pipe Elbow?

• Angle

45 Degree Elbow, 90 Degree Elbow, 180 Degree Elbow.

• Shape

Straight Elbow and Reducing Elbow.

• Radius

Long Radius Elbow and Short Radius Elbow.

• Connection

Butt Weld Elbow, Socket Weld Elbow, Threaded Elbow.

Schedule 40 Elbow Weight in kg

DN	NPS	WEIGHT
15	1/2	0.08
20	3/4	0.11
25	1	0.15
32	1 1/4	0.25
40	1 1/2	0.39
50	2	0.66
65	2 1/2	1.37
80	3	2.19
90	3 1/2	2.96
100	4	4.12
125	5	6.89
150	6	10.7
200	8	21.6
250	10	37
300	12	61
350	14	85.1
400	16	121
450	18	176
500	20	232
550	22	/
600	24	377

How to Calculate Weight of 90 Degree Elbow

Calculation Formula : W=0.0387 * S( D – S ) * R / 1000

• W = Weight (kg/piece).
• S = Thickness in mm.
• D = Nominal Diameter in mm.
• R = Radius

For example” 90 Degree Elbow SR 10″ x 10mm Thickness BW ASTM A403 WP316 ASME B16.9″

From above information, we can know OD is 10″ which is 273mm. SR means 1D that is 1 x 273mm. Thickness is 10mm. Let’s take these data into formula.

0.0387 x 10 x (273 – 10) x 1 x 273 / 1000 = 27.8kg/pcs.

Duplex Steel Buttweld Fittings

Package

We marked Duplex Steel Buttweld Fittings with Grade, Heat No, Size, Standard and Thickness. Our workers wrapped ASTM A815 UNS S31803 Elbow with water-proof material, and put them into wooden case or pallets, then bundled packages with nylon rope.

Clear labels are tagged on the outside of the package for easy identification of the quantity and product I.D. great care is taken during operation and transportation.

Inspection

1. Visual the surface of duplex stainless steel elbow fittings.
2. Check the marking. Such as size, material code, grade, thickness, heat No.
3. Measure the diameter and thickness whether in tolerance.
4. Test the chemical properties of ASTM A815 UNS S31803 Pipe Fittings.

Features

Duplex stainless steels are considered resistant to stress corrosion cracking, they are not as resistant to this form of attack as ferritic stainless steels. However, the corrosion resistance of the least resistant duplex stainless steels is much better than most commonly used grades of stainless steels 304 and 316.