ASTM A213 Seamless Alloy Steel Pipe Overview

zhao77jie — Mon, 21 Apr 2025 03:06:54 +0000

We manufacture high-quality ASTM A213 seamless alloy steel tubes, in accordance with the ASTM A213 Standard Specification for seamless ferritic and austenitic alloy-steel boiler, superheater, and heat-exchanger tubes. It has excellent high-temperature, corrosion, and pressure resistance, making it ideal for high-temperature, high-pressure environments like boilers, superheaters, and heat exchangers.

We specialize in manufacturing various types of seamless pipes, including precision tubes, heat exchanger tubes, petroleum cracking pipes, nuclear power pipes, and marine seamless pipes. We also offer pipe fittings such as bend, elbow, flanges, tees, etc. We have an advanced physical and chemical testing center and has established a comprehensive quality assurance system based on international and domestic standards, including ASME/ASTM (USA), JIS (Japan), DIN (Germany), EN (EU), and GB/NB (China). Feel free to contact us.

ASTM A213 Seamless Alloy Steel Pipe Scope

This standard covers seamless ferritic and austenitic steel tubes used in boilers, superheaters, and heat exchangers, including grades such as T5 and TP304. The pipe sizes range from an inside diameter of 1/8 inch (3.2 mm) to an outside diameter of 5 inches (127 mm), with wall thicknesses from 0.015 to 0.500 inches (0.4 to 12.7 mm). Custom sizes are also available upon request. Special requirements: Grades that include an “h” in their designation have different specifications compared to those without the “h”, offering superior creep rupture strength.

ASTM A213 Seamless Alloy Steel Pipe Specification

A213 Alloy Steel Seamless Tubes Specification	ASTM A213/ASME SA213
A213 Alloy Steel Seamless Tubes Grades	ASTM A213 T5, T9, T11, T22, T91
A213 Alloy Steel Seamless Tubes Type	Seamless-Hot Rolled/Cold Drawn
A213 Alloy Steel Seamless Tubes Outer Diameter Size	A335-3/8″NB to 30″NB(Nominal Bore Size)
A213 Alloy Steel Seamless Tubes Wall Thickness	Schedule 20 – XXS(Heavier On Request)
A213 Alloy Steel Seamless Tubes Length	5 to 7 Meters, 09 to 13 Meters, or per customer needs.
A213 Alloy Steel Seamless Tubes Pipe Ends	Plain Ends/Beveled Ends/Coupling
Tests	Tensile test, Flattening test, Flaring test, Hardness test, Nondestructive testing or hydraulic pressure test, Mechanical property test, Nondestructive test.
Product Marking	The steel pipes should be marked with details like the standard code, steel grade, size specifications, production details, heat number, etc., so as to facilitate traceability and quality management.

ASTM A213 Seamless Alloy Steel Pipe Manufacturer

We are a professional and trustworthy manufacturer and supplier of ASTM A213 seamless tubes. We specialize in manufacturing ASTM A213 seamless tubes in various grades and specifications, With years of experience, we guarantee stable product quality. Feel free to contact us anytime.

ASTM A213 Seamless Alloy Steel Pipe Grades and Application

ASTM A213 T9: It is widely used in boiler superheaters, reheaters.

ASTM A213 T11: It is widely used in industrial boilers, high-pressure pipelines.

ASTM A213 T12: It is widely used in petrochemical pipelines.

ASTM A213 T22: It is widely used in oil, chemical, power, aerospace equipment.

ASTM A213 T91: It is widely used in high-temperature components in thermal and nuclear power plants.

ASTM A213 Seamless Alloy Steel Pipe Features

Excellent high-temperature performance

High resistance to corrosion

Good pressure resistance

Good workability

Wide range of application fields

ASTM A213 Seamless Alloy Steel Pipe Chemical Composition

CHEMICAL	LIMITS	C	Mn	P	S	Si	Cr	Mo
ASTM A213 T5	MIN		0.30				4.00	0.450
ASTM A213 T5	MAX	0.150	0.60	0.025	0.025	0.50	6.00	0.650
ASTM A213 T9	MIN		0.30			0.25	8.00	0.900
ASTM A213 T9	MAX	0.150	0.60	0.025	0.025	1.00	10.00	1.100
ASTM A213 T11	MIN	0.050	0.30			0.50	1.00	0.440
ASTM A213 T11	MAX	0.150	0.60	0.025	0.025	1.00	1.50	0.650
ASTM A213T12	MIN	0.050	0.30				0.80	0.440
ASTM A213T12	MAX	0.150	0.61	0.025	0.025	0.50	1.25	0.650
ASTM A213 T21	MIN	0.050	0.30				2.65	0.800
ASTM A213 T21	MAX	0.150	0.60	0.025	0.025	0.50	3.35	1.060
ASTM A213 T22	MIN	0.050	0.30				1.90	0.870
ASTM A213 T22	MAX	0.150	0.60	0.025	0.025	0.50	2.60	1.130
ASTM A213 T91	MIN	0.070	0.30			0.20	8.00	0.850
ASTM A213 T91	MAX	0.140	0.60	0.020	0.010	0.50	9.50	1.050

ASTM A213 Seamless Alloy Steel Pipe Mechanical Properties

Steel Grade	Mechanical Properties
Steel Grade	T. S	Y. P	Elongation	Hardness
T2	≥ 415MPa	≥ 205MPa	≥ 30%	163HBW(85HRB)
T11	≥ 415MPa	≥ 205MPa	≥ 30%	163HBW(85HRB)
T12	≥ 415MPa	≥ 220MPa	≥ 30%	163HBW(85HRB)
T22	≥ 415MPa	≥ 205MPa	≥ 30%	163HBW(85HRB)
T91	≥ 585MPa	≥ 415MPa	≥ 20%	250HBW(25HRB)
T92	≥ 620MPa	≥ 440MPa	≥ 20%	250HBW(25HRB)

ASTM A213 Seamless Alloy Steel Pipe Heat Treatment

Grade	UNS Number	Heat Treat Type	Austenitizing/Solutioning Temperature, min or range °F [°C]	Cooling Media	Subcritical Annealing or Tempering Temperature, min or range °F [°C]
T5	K11547	Full or isothermal annealnormalize and tempersubcritical anneal	–	–	1200 to 1350 [650 to 730]
T9	K90941	Full or isothermal annealnormalize and tempersubcritical anneal	–	–	1250 [675]
T11	K11597	Full or isothermal annealnormalize and tempersubcritical anneal	–	–	1200 [650]
T12	K11562	Full or isothermal annealnormalize and tempersubcritical anneal	–	–	1200 to 1350 [650 to 730]
T21	K31545	Full or isothermal annealnormalize and tempersubcritical anneal	–	–	–
T22	K21590	Full or isothermal annealnormalize and tempersubcritical anneal	–	–	1250 [675]
T91	K90901	normalize and temper	1900 – 1975 [1040 – 1080]	–	1350 – 1470 [730 – 800]

ASTM A213 Seamless Alloy Steel Pipe Tensile and Hardness Requirements

Grade	UNS Designation	TensileStrengthmin, kesi[MPa]	YieldStrength,min, ksi[MPa]	Elongationin 2 in. or50 mm.min,	Hardness
Grade	UNS Designation	TensileStrengthmin, kesi[MPa]	YieldStrength,min, ksi[MPa]	Elongationin 2 in. or50 mm.min,	Brinell/vickers	Rockwell
Low Alloy Steels:
TSb	KS1545	60[415]	30[205]	30	179 HBW/190HV	89 HRB
T9	K90941	60[415]	30[205]	30	179 HBW/190HV	89 HRB
T12	K11562	60[415]	32[220]	30.00	163 HBW/170 HV	85 HRB
T23	K40712	74[510]	58[400]	20	220 HBW/230 HV	97 HRB
T24	K30736	85[585]	60[415]	20.00	250 HBW/265 HV	25 HRC
T91	K90901	85 [585]	60 [415]	20	190 to 250 HBW/196 to 265 HV	90 HRB to 25 HRC

ASTM A213 Seamless Alloy Steel Pipe Outside Diameter and Tolerance

Hot rolled	Outside Diameter, mm	Tolerance, mm
	OD≤101.6	+0.4/-0.8
	101.6＜OD≤190.5	+0.4/-1.2
	190.5＜OD≤228.6	+0.4/-1.6
Cold Drawn	Outside Diameter, mm	Tolerance, mm
	OD＜25.4	±0.10
	25.4≤OD≤38.1	±0.15
	38.1＜OD＜50.8	±0.20
	50.8≤OD＜63.5	±0.25
	63.5≤OD＜76.2	±0.30
	76.2≤OD≤101.6	±0.38
	101.6＜OD≤190.5	+0.38/-0.64
	190.5＜OD≤228.6	+0.38/-1.14

ASTM A213 Seamless Alloy Steel Pipe Wall Thickness and Tolerance

Hot rolled	Outside Diameter, mm	Tolerance, %
	OD≤101.6, WT≤2.4	+40/-0
	OD≤101.6, 2.4＜WT≤3.8	+35/-0
	OD≤101.6, 3.8＜WT≤4.6	+33/-0
	OD≤101.6, WT>4.6	+28/-0
	OD>101.6, 2.4＜WT≤3.8	+35/-0
	OD>101.6, 3.8＜WT≤4.6	+33/-0
	OD>101.6, WT>4.6	+28/-0
Cold Drawn	Outside Diameter, mm	Tolerance, %
	OD≤38.1	+20/-0
	OD>38.1	+22/-0

ASTM A213 Seamless Alloy Steel Pipe Development Trend

1. Higher Quality

Our ASTM A213 steel pipes will be improved by advancing technologies such as smelting, rolling, and heat treatment, boosting their mechanical, corrosion-resistant, and processing qualities.

2. Larger Sizes

With increasing energy demand and the trend toward larger equipment, our ASTM A213 steel pipes will develop into larger sizes, improving production efficiency, reducing costs, and enhancing energy efficiency.

3. Energy-saving and Green Production

The development of energy-saving techniques and the use of environmentally friendly materials in our production processes will help lower production costs and reduce environmental impact, making our ASTM A213 steel pipes more competitive in the market.

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