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            q345b無縫鋼管

            產品 · 簡介

            【產品簡介】

            q345b無縫鋼管

              Q345B無縫鋼管化學成分:

              C:≤0.18 Si:0.20-0.60 Mn:1.00-1.60 P:≤0.030 S:≤0.030 Ni:≤0.30 Cr≤0.30 Cu:≤0.20 Al:≥0.015 V:0.02-0.15 Nb:0.015-0.06

              Q345B無縫鋼管化學成分:

              C:0.12-0.20 Si:0.20-0.60 Mn:1.00-1.60 P:≤0.040 S:≤0.040 Ni:≤0.30 Cr:≤0.30 Cu:≤0.20 V:0.02-0.15 Nb:0.015-0.06

              Q345B無縫管力學性能:

              抗拉強度:490-675 屈服強度:≥345 伸長率:≥21


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