ASME SA139 Carbon Steel Tubes
ASTM A139 is a standard specification for electric resistance welded straight and spiral seam steel pipe manufactured using the arc welding process.
| 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 | / | / | / |
| ASTM A210 / A210M Mechanical Tests Required | ||||
| Mechanical Properties | ||||
| Grade | Tensile | Yield | Elongation | Hardness |
| Strength (Mpa) | Strength (Mpa) | (%) | (HRB) | |
| A-1 | ≥415 | ≥255 | ≥30 | ≤79 |
ASTM A210 / A210M Tube Wall Thickness Tolerance
| Seamless, Cold-Finished Tubes | ||
| Outside Diameter | Wall thickness Tolerance % | |
| In. (mm) | Over (+) | Under (-) |
| 1 ½ (38.1) and under | 20 | 0 |
| Over 1½ (38.1) | 22 | 0 |





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