ASTM美标钢管ASTM106A和ASTM106B区别

ASTM美标钢管106A化学成分：

C          Si            Mn                  P            S                   Cr          Mo

≤0.25   ≥0.10    0.27-0.93    ≤0.035     ≤0.035     ≤0.40   ≤0.15

ASTM美标钢管106B化学成分：

C          Si            Mn                  P            S                   Cr          Mo

≤0.30   ≥0.10    0.29-1.06   ≤0.035     ≤0.035     ≤0.40   ≤0.15

ASTM106A抗拉强度Mpa 屈服强度Mpa 伸长率*

                          ≥330              ≥205             ≥22

ASTM106B抗拉强度Mpa 屈服强度Mpa 伸长率*

                          ≥415             ≥240             ≥22