Seamless Steel Tube Library: American Standard ASTM1018 Chemical Composition and Mechanical Properties
Hit：542026-07-15 15:16:00
Seamless Steel Tube Library: American Standard ASTM1018 Chemical Composition and Mechanical Properties
Cold drawn seamless steel pipe and hot-rolled seamless steel pipe
1、 Chemical composition
The quality score of its core elements complies with relevant American standards:
C：0.15%~0.20%
Mn：0.60%~0.90%
P：≤0.035%
S：≤0.035%
In some versions of the standard, the Si content is controlled between 0.17% and 0.37%, and the proportion of residual Cr, Ni, and Cu elements does not exceed 0.25%.
2、 Mechanical performance
Tensile strength: approximately 410~550MPa
Yield strength: approximately 350~450MPa
Elongation rate: ≥ 15%~24%
The hardness in the untreated state is ≤ 156~197HB, with excellent plasticity, toughness, and weldability, and good cold forming performance.
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