ASTM A213 Alloy Tubes

ASTM A213 Alloy Tubes are been widely used in high temperature services especially for the boiler and superheater.

PMI test for ASTM A213 T91 tubes

ASTM A213 Alloy Tubes material could be in alloy steel and stainless steel, and manufactured in seamless of hot rolled or cold drawn. So this pipe usually used in very important places and the price is much higher than normal carbon pipes.

Sunny Steel Supply stocks a full range of the following ASTM A213 grades:

Main grades: ASTM A213 T5, T5b, T9, T11, T91 and T22

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.

SA 213 standard specification for seamless ferritic and austenitic alloy-steel boiler,super heater,and heat-exchanger tubes.

1. Surface state:
Austenitic steel pipe should be washed to remove the scale, when the use of bright annealing, you do not need pickling.

2. Chemical analysis of finished products:
It shall be analyzed from one billet or one pipe per furnace, and the chemical composition determined accordingly shall meet the specified requirements.

3. Mechanical test 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.



ASTM A213 Standard Scope:

ASTM A213 Standard Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, Heat-Exchanger Tubes.

Seamless ferrite alloy and austenitized alloy tubes
Seamless ferrite alloy and austenitized alloy tubes

1.1 This specification covers seamless ferritic and austenitic steel boiler, superheater, and heat-exchanger tubes, designated Grades T91, TP304, etc. These steels are listed in Tables 1 and 2.

1.2 Grades containing the letter, H, in their designation, have requirements different from those of similar grades not containing the letter, H. These different requirements provide higher creep-rupture strength than normally achievable in similar grades without these different requirements.

1.3 The tubing sizes and thicknesses usually furnished to this specification are 1/8 in. [3.2 mm] in inside diameter to 5 in. [127 mm] in outside diameter and 0.015 to 0.500 in. [0.4 to 12.7 mm], inclusive, in minimum wall thickness or, if specified in the order, average wall thickness. Tubing having other diameters may be furnished, provided such tubes comply with all other requirements of this specification.

1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. The inch-pound units shall apply unless the “M” designation of this specification is specified in the order.

Chemical composition(%) for ASTM A213
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
Mechanical properties
Grade Tensile strength
(Mpa)
Yield point(Mpa)
not less than
Elongation(%)
not less than
Impact(J)
not less than
Hardness
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
Size range:
NPS, inch
Outside Diameter(mm)
Wall Thickness(mm)
Max. Length(M)
1/8
10,3
1,24; 1,73; 2,40
12
1/4
13,7
1,65; 2,24; 3,02
3/8
17,1
1,65; 2,31; 3,20
1/2
21,3
1,65; 2,11; 2,77; 3,73
3/4
26,7
1,65; 2,11; 2,87; 3,91
1
33,4
1,65; 2,77; 3,38; 4,55
10
1 1/4
42,4
1,65; 2,77; 3,56; 4,85
1 1/2
48,3
2,77; 3,68; 5,08
2
60,3
3,91; 5,54
7
2 1/2
73,0
5,16; 7,01

TABLE 1 Chemical Composition Limits, %

A, for Low Alloy SteelA 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 testing shall be performed at mid-thickness of the product. 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.


Chrome Moly Pipe
ASTM A335 Pipe is a seamless ferritic Alloy-Steel Pipe for high temperature service.
Low temperature pipe
ASTM A333 (ASME S/A-333) Pipe grades permit low temperature service.

Alloy steel specification, Standard and identification

Alloy Steel pipe contains substantial quantities of elements other than carbon such as nickel, chromium, silicon, manganese, tungsten, molybdenum, vanadium and limited amounts of other commonly accepted elements such as manganese, sulfur, silicon, and phosphorous.

ASTM A335 P11 alloy pipe