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            Home - Products -結構用無縫鋼管

            結構用無縫鋼管

            結構用無縫鋼管

            標準:

            GB/T8162——中國國家標準
            ASTM A53——美國材料與試驗學會標準
            ASME SA53 ——美國鍋爐及壓力容器規范

            用途:
            用于制造管道、容器、設備、管件及機械結構用無縫鋼管

            主要生產鋼管牌號:
            10、20、35、45、Q345、15CrMo、12Cr1MoV、A53A、A53B、SA53A、SA53B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/T8162

            10

            ≥335

            ≥205

            ≥24

            20

            ≥390

            ≥245

            ≥20

            35

            ≥510

            ≥305

            ≥17

            45

            ≥590

            ≥335

            ≥14

            Q345

            ≥490

            ≥325

            ≥21

            15CrMo

            ≥440

            ≥295

            ≥22

            12Cr1MoV

            ≥490

            ≥245

            ≥22

            ASTM A53

            ASME SA53

            A

            ≥330

            ≥205

            查看ASTM A53的表

            查看ASME SA53的表

            B

            ≥415

            ≥240

            化學成分:

            標準

            牌號

            化學成分(%)

            C

            Si

            Mn

            P

            S

            Cu

            Ni

            Mo

            Cr

            V

            GB/T8162

            10

            0.07~0.14

            0.17~0.37

            0.35~0.65

            ≤0.035

            ≤0.035

            ≤0.25

            ≤0.25

            /

            ≤0.15

            /

            20

            0.17~0.24

            0.17~0.37

            0.35~0.65

            ≤0.035

            ≤0.035

            ≤0.25

            ≤0.25

            /

            ≤0.25

            /

            35

            0.32~0.40

            0.17~0.37

            0.50~0.80

            ≤0.035

            ≤0.035

            ≤0.25

            ≤0.25

            /

            ≤0.25

            /

            45

            0.42~0.50

            0.17~0.37

            0.50~0.80

            ≤0.035

            ≤0.035

            ≤0.25

            ≤0.25

            /

            ≤0.25

            /

            Q345

            0.12~0.20

            0.20~0.55

            1.20~1.60

            ≤0.035

            ≤0.035

            ≤0.25

            ≤0.25

            /

            ≤0.25

            /

            15CrMo

            0.12~0.18

            0.17~0.37

            0.40~0.70

            ≤0.035

            ≤0.035

            ≤0.25

            ≤0.30

            0.40~0.55

            0.80~1.10

            /

            12Cr1MoV

            0.08~0.15

            0.17~0.37

            0.40~0.70

            ≤0.035

            ≤0.035

            ≤0.25

            ≤0.30

            0.25~0.35

            0.90~1.20

            0.15~0.30

            ASTMA53

            ASMESA53

            A

            ≤0.25

            /

            ≤0.95

            ≤0.05

            ≤0.06

            ≤0.40

            ≤0.40

            ≤0.15

            ≤0.40

            ≤0.08

            B

            ≤0.30

            /

            ≤1.20

            ≤0.05

            ≤0.06

            ≤0.40

            ≤0.40

            ≤0.15

            ≤0.40

            ≤0.08

            關鍵詞:

             

             
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