ASTM A213 / ASME SA213 Seamless tubing

ASTM A213-Seamless ferritic and austenitic alloy-steel boiler, superheater and heat-exchanger tubes

ASTM A213 /ASME SA213 Seamless tubing:

ASTM A213 standard applies to seamless ferritic and austenitic alloy steel pipes for boilers, superheaters and heat exchangers. These steel pipes are mainly used in high temperature and high pressure working environments, such as boilers, superheaters and heat exchangers. ASTM A213 standard specifies the requirements for chemical composition, mechanical properties, dimensions and manufacturing process of these steel pipes. American standard ASTM A213 mainly produces steel pipe grades: A213 T11, A213 T12, A213 T22, etc.

Scope of application:
ASTM A213 standard applies to the following types of steel pipes:
Seamless ferritic alloy steel pipe: It has high heat resistance and good mechanical properties and is suitable for high temperature environments.
Austenitic alloy stainless steel pipe: It has good corrosion resistance and high strength and is suitable for various industrial applications.

Size range:
NPS 1/4'' to NPS 24''
Wall Thickness - Schedules 40 through 160, STD, XS, XXS.
Unscheduled heavy wall pipe thicknesses available up to 4 inches.
ASME SA 213 standard specification for seamless ferritic and austenitic alloy-steel boiler,super heater,and heat-exchanger tubes.

Application field: 

Due to the good high temperature resistance, corrosion resistance and oxidation resistance of ASTM A213 seamless steel pipe, it is widely used in petrochemical, electric power, heat exchanger and other fields, and can work stably for a long time under high temperature, high pressure and corrosive environment.
Boiler: used to manufacture heating elements and pipes of boilers, and withstand high temperature and high pressure environment.
Superheater: used to increase the steam temperature, commonly used in the steam circulation system of power plants.
Heat exchanger: used for heat energy exchange, commonly used in chemical and petroleum industries.

Click here to learn more “Carbon steel ERW boiler tube & air heater tube specification”

Chemical composition:
ASTM A213 standard has strict regulations on the manufacturing process and chemical composition of steel pipes. For example, the chemical composition of ferritic alloy steel pipes must meet specific carbon, manganese, phosphorus, sulfur and other elements to ensure its heat resistance and mechanical properties. Austenitic alloy steel pipes must meet specific chromium, nickel and other elements to ensure its corrosion resistance and strength. The composition of different grades of steel pipes is different, for example, the chemical composition of grades such as T11, T12, and T22 is also different.

Mechanical properties:
ASTM A213 seamless steel pipe has high tensile strength, yield strength and elongation. For example, the tensile strength of steel pipes of grades T11, T12, and T22 is above 415MPa, the yield strength is between 170MPa and 205MPa, and the elongation is above 30%.

Manufacturing process: 

The manufacturing process of ASTM A213 seamless steel pipe includes perforation, hot rolling, cold rolling, annealing, pickling, finishing and other links, which ensures the quality and performance of the steel pipe.

Mechanical property testing and grain size:
(1) Tensile test: such as each batch of steel pipe ≤ 50 root, then take a sample for tensile test; each batch of steel pipe> 50, then two steel pipes should take two samples for tensile test.
(2) Flattening test: in each batch of a finished tube at both ends of each sample to take a flattening test, but the root can not used as a flaring sample.
(3) Flaring test: in each batch of a finished tube at both ends of a sample for a flaring test, but the root canal can not be used as a flattening sample.
(4) Hardness test: from each batch of two tubes on the sample to do Brinell or Rockwell hardness test.
(5) Water pressure test: each pipe should be hydrostatic test. When the buyer is specified, a non-destructive test may be used instead.
(6) Grain size: according to ASME E112 standard test.

Hunan Standard Steel Co., Ltd supplies a full range of the following ASTM A213 grades: ASTM A213 T2、T5 、T5b、T5C、T9 、T11、TI2、T21、T22、T23、T91(Type1. Type2)、 T92, click to check View of ASTM A213 Seamless Pipe Dimensional Table.

ASTM A213M-09 Material Comparison Tables (ASTM →KS, JIS, DIN, BS, NBN, NF, UNI)

Grade	UNS Designation	C	Mn	P	S	Si
T2	K11547	0.10–0.20	0.30–0.61	0.025	0.025B	0.10–0.30
T5	K41545	0.15	0.30–0.60	0.025	0.025	0.5
T5b	K51545	0.15	0.30–0.60	0.025	0.025	1.00–2.00
T5c	K41245	0.12	0.30–0.60	0.025	0.025	0.5
T9	K90941	0.15	0.30–0.60	0.025	0.025	0.25–1.00
T11	K11597	0.05–0.15	0.30–0.60	0.025	0.025	0.50–1.00
T12	K11562	0.05–0.15	0.30–0.61	0.025	0.025B	0.5
T17	K12047	0.15–0.25	0.30–0.61	0.025	0.025	0.15–0.35
T21	K31545	0.05–0.15	0.30–0.60	0.025	0.025	0.50–1.00
T22	K21590	0.05–0.15	0.30–0.60	0.025	0.025	0.5
T23	K40712	0.04–0.10	0.10–0.60	0.03	0.01	0.5
T24	K30736	0.05–0.10	0.30–0.70	0.02	0.01	0.15–0.45
T36	K21001	0.10–0.17	0.80–1.20	0.03	0.025	0.25–0.50
T91	K90901	0.07–0.14	0.30–0.60	0.02	0.01	0.20–0.50
T92	K92460	0.07–0.13	0.30–0.60	0.02	0.01	0.5
T122	K91271	0.07–0.14	0.7	0.02	0.01	0.5
T911	K91061	0.09–0.13	0.30–0.60	0.02	0.01	0.10–0.50

Grade	UNS Designation	Vana-	Boron	Niobium	Nitrogen	Aluminum	Tungsten
		dium
T2	K11547	...	...	...	...	...	...
T5	K41545	...	...	...	...	...	...
T5b	K51545	...	...	...	...	...	...
T5c	K41245	...	...	...	...	...	...
T9	K90941	...	...	...	...	...	...
T11	K11597	...	...	...	...	...	...
T12	K11562	...	...	...	...	...	...
T17	K12047	0.15	...	...	...	...	...
T21	K31545	...	...	...	...	...	...
T22	K21590	...	...	...	...	...	...
T23	K40712	0.20–0.30	0.0010–0.006	0.02–0.08	0.015	0.03	1.45–1.75
T24	K30736	0.20–0.30	0.0015–0.007	...	0.012	0.02	...
T36	K21001	0.02	...	0.015–0.045	0.02	0.05	...
T91	K90901	0.18–0.25	...	0.06–0.10	0.030–0.07	0.02	...
T92	K92460	0.15–0.25	0.001–0.006	0.04–0.09	0.030–0.07	0.02	1.5–2.00
T122	K91271	0.15–0.30	0.0005–0.005	0.04–0.10	0.040–	0.02	1.50–2.50
T911	K91061	0.18–0.25	0.0003–0.006	0.06–0.10	0.040–0.09	0.02	0.90–1.10

Mechanical Properties:

Grade	Tensile strength	Yield point(Mpa)	Elongation(%)	Impact(J)	Hardness
	(Mpa)	not less than	not less than	not less than	not less than
A213 T2/SA213 T2	≥415	205		"	85HRB
A213 T11/SA213 T11	≥415	205		"	85HRB
A213 T22/SA213 T22	≥415	205		"	85HRB
A213 T23/SA213 T23	≥510	400	20	"	97HRB
A213 T24/SA213 T24	≥585	415	20	"	25HRB
A213 T91/SA213 T91	≥585	415	20	"	25HRB
A213 T911/SA213 T911	≥620	440	20	"	25HRB
A213 T22/SA213 T92	≥620	440	20	"	25HRB
A213 T122/SA213 T122	≥620	400	20		25HRB
TP304H	≥515	205	35		90HRB
TP316H	≥515	205	35		90HRB
TP321H	≥515	205	35		90HRB
TP347H	≥515	205	35		90HRB
S30432	≥590	235	35		95HRB
TP310HCbN	≥655	295	30		100HRB

Note:
A Maximum, unless range or minimum is indicated. Where ellipses (...) appear in this table, there is no requirement, and analysis for the element need not be determined or reported.
B It is permissible to order T2 and T12 with a sulfur content of 0.045 max. See 16.3.
C Alternatively, in lieu of this ratio minimum, the material shall have a minimum hardness of 275 HV in the hardened condition, defined as after austenitizing and cooling to room temperature but prior to tempering.
Hardness test frequency shall be two samples of product per heat treatment lot and the hardness testing results shall be reported on the material test report.

ASTM A213 Stainless Steel Tubing Specification
ASTM A213 standard is a common used specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Super heater, and Heat-Exchanger Tubes, offering manufacture and purchasing requirements for manufactures and users, main information contain grade, size, finishes, test and other terms, the equivalent standard is ASME SA213.

ASTM A213 Ferritic And Austenitic Alloy–Steel Material Grades
ASTM A213 Specification covers material containing alloy steels, Ferritic and Austenitic steels, Austenitic stainless steel is the most used group due to their properties, common designated grades are listed, in table 1 for chemical composition, table 2 for mechanical properties and solution temperature.

Chemical composition %

Grade	C	Si	Mn	Cr	Ni	Mo	S	P
TP304	0,08	1,0	2	18 – 20	8 – 11	–	0,03	0,045
TP304L	0,035	1,0	2	18 – 20	8 – 12	–	0,03	0,045
TP316	0,08	1,0	2	16 – 18	11 – 14	2 – 3	0,03	0,045
TP316L	0,035	1,0	2	16 – 18	10 – 14	2 – 3	0,03	0,045
TP321	0,08	1,0	2	17 – 19	9 – 12	–	0,03	0,045

Mechanical properties and solution temperature (Min, degree centigrade).

Grade	Tensile Strength(Mpa)	Yield Point(Mpa)	Elongation(%)	Hardness(HRB)	Solution Temperature
TP304	515	205	35	90	1040
TP304L	485	170	35	90	1040
TP316	515	205	35	90	1040
TP316L	485	170	35	90	1040
TP321	515	205	35	90	1040

Read more: American Standard Seamless Steel Pipe or Schedule 80 Carbon Steel Pipe