SA210 high pressure alloy tube
The executive standard of SA210 high-pressure alloy pipe ASTM A210-----American Society for Testing and Materials Standard ASME SA210--American Society of Mechanical Engineers standard.
Minimum wall thickness seamless medium carbon steel pipe for boiler tubes and boiler flue tubes, including safety ends, vault and support tubes, and superheater tubes.
Mainly produces high pressure alloy pipe grades: A210A1, A210C, etc.
ASTM A210 / A210M Grade A-1 Chemical Compositions:
|
Chemical Components (%) |
||||||||
|
Grade |
C |
Si |
Mn |
P |
S |
Mo |
Cr |
V |
|
A-1 |
≤0.27 |
≥0.10 |
≤0.93 |
≤0.035 |
≤0.035 |
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/ |
/ |
ASTM A210 / A210M Mechanical Tests Required:
Mechanical Properties |
||||
|
Grade |
Tensile |
Yield |
Elongation |
Hardness |
|
A-1 |
≥415 |
≥255 |
≥30 |
≤79 |
ASTM A210 / A210M Tube Wall Thickness Tolerance:
|
Seamless, Cold-Finished Tubes |
||
|
Outside Diameter |
Wall thickness Tolerance % |
|
|
Over (+) |
Under (-) |
|
|
1 ½ (38.1) and under |
20 |
0 |
|
Over 1½ (38.1) |
22 |
0 |
ASTM A210 / A210M Tube Outside Diameter Tolerance:
|
Cold-Finished Seamless Tubes |
||
|
Outside Diameter |
Permissible Variations . (mm) |
|
|
Over (+) |
Under (-) |
|
|
Under 1 (25.4) |
0.004 (0.10) |
0.004 (0.10) |
|
1 to 1 ½ (25.4 to 38.1), Incl |
0.006 (0.15) |
0.006 (0.15) |
|
Over 11⁄2 to 2 (38.1 to 50.8), Excl |
0.008 (0.20) |
0.008 (0.20) |
|
2 to 21⁄2 (50.8 to 63.5), Excl |
0.010 (0.25) |
0.010 (0.25) |
|
21⁄2 to 3 (63.5 to 76.2), Excl |
0.012 (0.30) |
0.012 (0.30) |
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