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            Home - Products -輸送流體用無縫鋼管

            輸送流體用無縫鋼管

            輸送流體用無縫鋼管

            標準:
            GB/T8163——中國國家標準
            用途:
            用于輸送流體用的一般無縫鋼管
            主要生產鋼管牌號:
            10、20、Q345 等

             

            尺寸
            公差:

             

            鋼管種類

            外徑(D)

            鋼管壁厚(S)

            冷拔管

            鋼管外徑(mm)

            允許偏差(mm)

            鋼管壁厚(mm)

            允許偏差(mm)

            >30~50

            ±0.3

            ≤30

            ±10%

            >50~219

            ±0.8%

            熱軋管

            >219

            ±1.0%

            >20

            ±10%

             

            力學性能:

            標準

            牌號

            抗拉強度(MPa)

            屈服強度(MPa)

            伸長率(%)

            GB/T8163

            10

            335~475

            ≥205

            ≥24

            20

            410~550

            ≥245

            ≥20

            Q345

            490~665

            ≥325

            ≥21

            化學成分:

            標準

            牌號

            化學成分(%)

            C

            Si

            Mn

            P

            S

            Cr

            Ni

            Cu

            GB/T8163

            10

            0.07~0.14

            0.17~0.37

            0.35~0.65

            ≤0.035

            ≤0.035

            ≤0.15

            ≤0.25

            ≤0.25

            20

            0.17~0.24

            0.17~0.37

            0.35~0.65

            ≤0.035

            ≤0.035

            ≤0.25

            ≤0.25

            ≤0.25

            Q345

            0.12~0.20

            0.20~0.55

            1.20~1.60

            ≤0.045

            ≤0.045

            /

            /

            /

            關鍵詞:

             

             
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            86+514+86529012
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