ZHANGJIAGANG HUA DONG ENERGY TECHNOLOGY CO.,LTD |
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ASTM A210 seamless medium carbon steel boiler and superheater tubes
ASTM A210 is the standard covers seamless medium-carbon steel boiler and superheater tubes. Seamless medium carbon steel pipe for boiler tube and boiler flue pipe, including a minimum wall thickness of the security side, the dome and the support tube and superheater tubes.
Mechanical Properties:
Grade | C(Max) | Mn | Si(Min) | P(Max) | S(Max) |
A1 | 0.27 | Max.0.93 | 0.10 | 0.035 | 0.035 |
C | 0.35 | 0.29~1.06 | 0.10 | 0.035 | 0.035 |
Chemical composition:
Grade | Tensile Strength(Mpa) | Yield Strength(Mpa) | Elongation (%) |
A1 | ≥ 415 | ≥ 255 | ≥ 30 |
C | ≥ 485 | ≥ 275 | ≥ 30 |
Outside Diameter & Tolerance
Hot rolled | Outside Diameter, mm | Tolerance, mm |
OD≤101.6 | +0.4/-0.8 | |
101.6<OD≤127 | +0.4/-1.2 | |
Cold Drawn | Outside Diameter, mm | Tolerance, mm |
OD<25.4 | ±0.10 | |
25.4≤OD≤38.1 | ±0.15 | |
38.1<OD<50.8 | ±0.20 | |
50.8≤OD<63.5 | ±0.25 | |
63.5≤OD<76.2 | ±0.30 | |
76.2≤OD≤101.6 | ±0.38 | |
101.6<OD≤127 | +0.38/-0.64 | |
Wall thickness & Tolerance
Hot rolled | Outside Diameter , mm | Tolerance, % |
OD≤101.6, WT≤2.4 | +40/-0 | |
OD≤101.6, 2.4<WT≤3.8 | +35/-0 | |
OD≤101.6, 3.8<WT≤4.6 | +33/-0 | |
OD≤101.6, WT>4.6 | +28/-0 | |
OD>101.6, 2.4<WT≤3.8 | +35/-0 | |
OD>101.6, 3.8<WT≤4.6 | +33/-0 | |
OD>101.6, WT>4.6 | +28/-0 | |
Cold Drawn | Outside Diameter , mm | Tolerance, % |
OD≤38.1 | +20/-0 | |
OD>38.1 | +22/-0 |
Application:
Certification