Alloy Steel Seamless Pipe ASTM A213 A335 A519
Alloy steel seamless pipes covered by ASTM A213, ASTM A335, and ASTM A519 are used in various high-temperature and high-pressure applications.
ASTM A213/ASME SA213 pipe Chemical Composition and Mechanical Properties
| Grade | Chemical Composition% | ||||||||
| C | Si | Mn | P, S Max | Cr | Mo | Ni Max | V | Al Max | |
| 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 | - | - | - |
| 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 |
| Grade | Chemical Composition% | Mechanical Properties | |||||||
| W | B | Nb | N | T. S | Y. P | Elongation | Hardness | ||
| T11 | - | - | - | - | ≥ 415MPa | ≥ 205MPa | ≥ 30% | 163HBW(85HRB) | |
| T12 | - | - | - | - | ≥ 415MPa | ≥ 220MPa | ≥ 30% | 163HBW(85HRB) | |
| T91 | - | - | 0.06~0.10 | 0.03~0.07 | ≥ 585MPa | ≥ 415MPa | ≥ 20% | 250HBW(25HRB) | |
ASME SA213 Alloy Steel Seamless Tube Dimensions 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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