A213 T22 T91 Stainless Steel Welded Pipe
A213 T22 T91 SS Steel Pipe Supplier-GNEE
ASTM A / ASME SA 213 specification covers seamless ferritic and austenitic steel boiler, superheater and heat exchanger tubes/pipes. Austenitic stainless steel tubes shall be supplied in the heat-treated condition. Alternatively, after hot forming, the tubes may be quenched separately in water or cooled rapidly by other means when the temperature of the tubes is not below the minimum solid solution temperature. Each tube shall be subjected to a tensile test, a hardness test, a flattening test and a flaring test.
- Outside Diameter:20-1066.8mm
- Wall Thickness:1-80mm
- Standard:ASTM A335,JIS G3458,JIS G3462,JIS G3467,DIN 17175-79
- Material:
ASTM A335--Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service (P1/P11/P12/P2/P22/P5/P9/P91)
JIS G3458--Alloy Steel Pipes (STPA 12/20/22/23/24/25/26)
JIS G3462--Alloy Steel for Boiler and Heat Exchange Tubes (STBA 12/13/20/22)
JIS G3467--Steel Tubes for Fired Heater (STF 410/STFA 12/22/23/24/25/26)
DIN 17175-79--Electrical Resistance or Induction Welded Steel Tubes for Elevated Temperature.
- Production Technology: Hot Rolled/Cold Rolled/Cold Drawn
ASTM A213/ASME SA213 T2, T22, T91 Stainless Steel Welded Tube Chemical Composition and Mechanical Properties
| Grade | Chemical Composition% | ||||||||
| C | Si | Mn | P, S Max | Cr | Mo | Ni Max | V | Al Max | |
| T2 | 0.10~0.20 | 0.10~0.30 | 0.30~0.61 | 0.025 | 0.50~0.81 | 0.44~0.65 | – | – | – |
| T11 | 0.05~0.15 | 0.50~1.00 | 0.30~0.60 | 0.025 | 1.00~1.50 | 0.44~0.65 | – | – | – |
| T12 | 0.05~0.15 | Max 0.5 | 0.30~0.61 | 0.025 | 0.80~1.25 | 0.44~0.65 | – | – | – |
| T22 | 0.05~0.15 | Max 0.5 | 0.30~0.60 | 0.025 | 1.90~2.60 | 0.87~1.13 | – | – | – |
| T91 | 0.07~0.14 | 0.20~0.50 | 0.30~0.60 | 0.02 | 8.0~9.5 | 0.85~1.05 | 0.4 | 0.18~0.25 | 0.015 |
| T92 | 0.07~0.13 | Max 0.5 | 0.30~0.60 | 0.02 | 8.5~9.5 | 0.30~0.60 | 0.4 | 0.15~0.25 | 0.015 |
| Grade | Chemical Composition% | Mechanical Properties | |||||||
| W | B | Nb | N | 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 | – | – | 0.06~0.10 | 0.03~0.07 | ≥ 585MPa | ≥ 415MPa | ≥ 20% | 250HBW(25HRB) | |
| T92 | 1.50~2.00 | 0.001~0.006 | 0.04~0.09 | 0.03~0.07 | ≥ 620MPa | ≥ 440MPa | ≥ 20% | 250HBW(25HRB) | |
ASTM A213/ASME SA213 T2, T22, T91 Stainless Steel Tubular Tolerance
| Outside Diameter | OD Tolerance | WT Tolerance | Ovality Tolerance | Cut Length Tolerance |
| OD≤ 12, 7 mm | ± 0, 13 mm | ± 15 % | – | + 3, 18 mm, – 0 mm |
| 12, 7 mm < OD ≤ 38, 1 mm | ± 0, 13 mm | ± 10 % | max, 1, 65 mm | + 3, 18 mm, – 0 mm |
| 38, 1 mm < OD ≤ 88, 9 mm | ± 0, 25 mm | ± 10 % | max, 2, 41 mm | + 4, 76 mm, – 0 mm |
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