- 產品
- 供應
- 公司
- 新聞
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供應高強度Q420鋼板 供應高強度Q420鋼板
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等級
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C
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Mn
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Si
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P
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S
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V
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Nb
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Ti
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Al
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Cr
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Ni
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A
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≦0.20
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1.00～1.70
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≦0.55
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≦0.045
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≦0.045
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0.02～0.20
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0.015～0.060
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0.02～0.20
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-
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≦0.40
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≦0.70
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B
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≦0.20
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1.00～1.70
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≦0.55
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≦0.040
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≦0.040
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0.02～0.20
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0.015～0.060
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0.02～0.20
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-
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≦0.40
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≦0.70
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C
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≦0.20
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1.00～1.70
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≦0.55
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≦0.035
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≦0.035
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0.02～0.20
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0.015～0.060
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0.02～0.20
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≧0.015
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≦0.40
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≦0.70
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D
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≦0.20
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1.00～1.70
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≦0.55
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≦0.030
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≦0.030
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0.02～0.20
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0.015～0.060
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0.02～0.20
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≧0.015
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≦0.40
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≦0.70
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E
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≦0.20
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1.00～1.70
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≦0.55
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≦0.025
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≦0.025
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0.02～0.20
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0.015～0.060
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0.02～0.20
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≧0.015
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≦0.40
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≦0.70
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等級
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δ5/%
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A
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≧18
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B
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≧18
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C
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≧19
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D
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≧19
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E
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≧19
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厚度（直徑、邊長）/mm
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≦16
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>16～35
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>35～50
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>50～100
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σs/MPa
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≧420
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≧400
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≧380
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≧360
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等級￤溫度
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+20℃
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0℃
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-20℃
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-40℃
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A
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||||
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B
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≧34
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C
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≧34
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D
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≧34
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E
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≧27
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