seamless steel pipes for project service
Steel Grade: A, B, C
Standard: ASTM A53/A106
Application: for project structures
Sizes: O.D.: 60mm~219mm, W.T.: 4mm~35mm.
Chemical Composition, Mass Fraction(%):
| Steel Grade | C | Mn | P | S | Cu | Ni | Cr | Mo | V | Si |
| ASTM A53 | ||||||||||
| A | 0.25 | 0.05 | 0.05 | 0.045 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 | / |
| B | 0.30 | 0.10 | 0.05 | 0.045 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 | / |
| ASTM A106 | ||||||||||
| A | 0.25 | 0.27~0.93 | 0.035 | 0.035 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 | 0.10 |
| B | 0.30 | 0.29~1.06 | 0.035 | 0.035 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 | 0.10 |
| C | 0.35 | 0.29~1.06 | 0.035 | 0.035 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 | 0.10 |
Mechanical Properties:
| Steel Grade | tensile strength min | yield strength min | Elongation(%) | |||||
| transverse strip test | standard rod test | |||||||
| psi | MPa | psi | MPa | longitudinal | lateral | longitudinal | lateral | |
| ASTM A53 | ||||||||
| Grade A | 48000 | 330 | 60000 | 415 | / | / | / | / |
| Grade B | 30000 | 205 | 35000 | 240 | / | / | / | / |
| ASTM A106 | ||||||||
| Grade A | 48000 | 330 | 30000 | 205 | 35 | 25 | 28 | 20 |
| Grade B | 60000 | 415 | 35000 | 240 | 30 | 16.5 | 22 | 12 |
| Grade C | 70000 | 485 | 40000 | 275 | 30 | 16.5 | 20 | 12 |
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