2 inch steel pipe sch 40 black iron sae 1020 seamless steel pipe price
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Sae 1045 4140 alloy steel round shapes hollow bar factory supplier price per kg
Grade | C | SI | Mn | P | S | Yield Strength | Tensile Strength | Elongation |
20# | 0.17-0.23 | 0.17-0.37 | 0.35-0.65 | ≤0.035 | ≤0.035 | ≥245Mpa | 253-500Mpa | ≥24% |
1020 | 0.18-0.23 | - | 0.30-0.60 | ≤0.040 | ≤0.050 | - | - | - |
Q345B | ≤0.20 | ≤0.50 | ≤1.70 | ≤0.035 | ≤0.035 | ≥345Mpa | 470-630Mpa | ≥20% |
SAE1518 | - | - | 1.10-1.40 | ≤0.040 | ≤0.050 | ≥345Mpa | 375-470Mpa | ≥25% |