A213 Alloy Steel boiler tube
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China [CN]
SA-213/SA-213M Specification for seamless Ferritic Alloy steel boiler, Superheater and heat exchanger tubes
Delivery Condition: Normalized and TemperedInspections and Tests Performed: Chemical Composition Inspection, Mechanical Properties Test(Tensile Strength, Yield Strength, Elongation, Flaring, Flattening, Bending, Hardness, Impact Test), Surface and Dimension Test, No-destructive Test, Hydrostatic Test.Surface treatment: Oil-dip, Varnish, Passivation, Phosphating, Shot Blasting
Inner packing: Caps on two ends of every pipe
Package: bare packing/bundle packing/wooden carton packing.
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Size Tolerance |
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Tube Kinds |
SA213 OD(D) |
SA213 Thickness(S) |
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OD(mm) |
OD Tolerance(mm) |
OD(mm) |
Thickness Tolerance(mm) |
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Hot Rolled |
=101.6 |
+0.4~-0.8 |
76~168.3 |
+28%~0 |
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>101.6~168.3 |
+0.4~-1.2 |
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Cold Drawn |
<25.4 |
0.1 |
=38.1 |
+20%~0 |
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25.4~38.1 |
0.15 |
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>38.1~<50.8 |
0.2 |
>38.1 |
+22%~0 |
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50.8~<63.5 |
0.25 |
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63.5~<76.2 |
0.3 |
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76.2~101.6 |
0.38 |
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>101.6~190.5 |
+0.38~-0.64 |
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>190.5~228.6 |
+0.38~-1.14 |
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Grade |
Tensile Strength,Min., ksi[MPa] |
Yield Strength,Min., ksi[MPa] |
Elongationin 2 in. or 50 mm,Min., %[Note (1),(2)] |
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T12 |
60 [415] |
32 [220] |
30 |
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T23 |
74 [510] |
58 [400] |
20 |
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T91 |
85 [585] |
60 [415] |
20 |
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T92 |
90 [620] |
64 [440] |
20 |
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T122 |
90 [620] |
58 [400] |
20 |
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18Cr-2Mo |
60 [415] |
40 [275] |
20 |
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NOTES: |
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(1) When standard round 2 in. or 50 mm gage length or smaller proportionally sized specimens with gage length equal to 4D (4 |
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times the diameter) is used, the minimum elongation shall be 22% for all ferritic grades except 18Cr-2Mo, T23 and T91. |
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(2) For longitudinal strip tests, a deduction from the basic minimum |
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CHEMICAL REQUIREMENTS FOR FERRITIC STEEL |
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Composition, % |
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Grade |
Carbon |
Manganese |
Phosphorus, Max. |
Sulfur, Max |
Silicon |
Chromium |
Molybdenum |
Titanium |
Vanadium,Min. |
Other Elements |
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T2 [Note (1)] |
0.10~0.20 |
0.30~0.61 |
0.025 |
0.025 |
0.10~0.30 |
0.50~0.81 |
0.44~0.65 |
. . . |
. . . |
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T5 |
0.15 max. |
0.30~0.60 |
0.025 |
0.025 |
0.50 max. |
4.00~6.00 |
0.45~0.65 |
. . . |
. . . |
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T5b |
0.15 max. |
0.30~0.60 |
0.025 |
0.025 |
1.00~2.00 |
4.00~6.00 |
0.45~0.65 |
. . . |
. . . |
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T5c |
0.12 max. |
0.30~0.60 |
0.025 |
0.025 |
0.50 max. |
4.00~6.00 |
0.45~0.65 |
[Note (1)] |
. . . |
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T9 |
0.15 max. |
0.30~0.60 |
0.025 |
0.025 |
0.25~1.00 |
8.00~10.00 |
0.90~1.10 |
. . . |
. . . |
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T11 |
0.05 min.~0.15 max. |
0.30~0.60 |
0.025 |
0.025 |
0.50~1.00 |
1.00~1.50 |
0.44~0.65 |
. . . |
. . . |
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T12 [Note (1)] |
0.05 min.~0.15 max. |
0.30~0.61 |
0.025 |
0.025 |
0.50 max. |
0.80~1.25 |
0.44~0.65 |
. . . |
. . . |
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T17 |
0.15~0.25 |
0.30~0.61 |
0.025 |
0.025 |
0.15~0.35 |
0.80~1.25 |
. . . |
. . . |
0.15 |
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T21 |
0.05 min.~0.15 max. |
0.30~0.60 |
0.025 |
0.025 |
0.50 max. |
2.65~3.35 |
0.80~1.06 |
. . . |
. . . |
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T22 |
0.05 min.~0.15 max. |
0.30~0.60 |
0.025 |
0.025 |
0.50 max. |
1.90~2.60 |
0.87~1.13 |
. . . |
. . . |
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T23 |
0.04~0.10 |
0.10~0.60 |
0.03 |
0.01 |
0.50 max. |
1.90~2.60 |
0.05~0.30 |
. . . |
0.20~0.30 |
W 1.45~1.75Cb 0.02~0.08B 0.0005~0.006N 0.030 max.Al 0.030 max. |
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T91 |
0.08~0.12 |
0.30~0.60 |
0.02 |
0.01 |
0.20~0.50 |
8.00~9.50 |
0.85~1.05 |
. . . |
0.18~0.25 |
Cb 0.06~0.1N 0.030~0.070Ni 0.40 max.Al 0.04 max. |
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T92 |
0.07~0.13 |
0.30~0.60 |
0.02 |
0.01 |
0.50 max. |
8.50~9.50 |
0.30~0.60 |
. . . |
0.15~0.25 |
W 1.5~2.00Cb 0.04~0.09B 0.001~0.006N 0.03~0.07Ni 0.40 max.Al 0.04 max. |
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T122 |
0.07~0.14 |
0.70 max. |
0.02 |
0.01 |
0.50 max. |
10.00~12.50 |
0.25~0.60 |
. . . |
0.15~0.30 |
W 1.50~2.50Cu 0.30~1.70Cb 0.04~0.10B 0.0005~0.005N 0.040~0.100Ni 0.50 max.Al 0.040 max. |
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18Cr-2Mo |
0.025 max. |
1.00 max. |
0.04 |
0.03 |
1.00 max. |
17.5~19.5 |
1.75~2.50 |
[Note (3)] |
. . . |
N max. 0.035Ni + Cu max. 1.00 |
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NOTES: |
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(1) It is permissible to order T2 and T12 with 0.045 max. Sulfur. |
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(2) Grade T5c shall have a titanium content of not less than four times the carbon content and not more than 0.70%. |
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(3) Grade 18Cr-2Mo shall have Ti + Cb p 0.20 + 4 (C + N) min., 0.80 max. |
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