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          Cangzhou Spiral Steel Pipes Group Co.,Ltd.

        1. Current location-Return Home > Problem >
          Physical and Chemical Properties of Spiral Steel
          Release date:2016-11-01
          standard
          Steel grade
          chemical composition
          Tensile properties
          Charpy
          C
          Mn
          P
          S
          Si
          other
           
           
           
           
           
          max
          max
          max
          max
          max
          min
          max
          min
          max
          D≤168.3mm
          D>168.3mm
          GB/T3091-2008
          Q215A
          ≤0.15
          0.25<1.20
          0.045
          0.050
          0.35

          -

          -

          -

          -

          Nb\v\Ti See you

          GB/T1591-94

          215
          -
          335
          -
          15
          >31
                 -
          Q215B
          ≤0.15
          0.25-0.55
          0.045
          0.045
          0.35
          215
          335
          15
          >31
          Q235A
          ≤0.22
          0.30-0.65
          0.045
          0.050
          0.35
          235
          375
          15
          >26
          Q235B
          ≤0.20
          0.30≤1.80
          0.045
          0.045
          0.35
          235
          375
          15
          >26
          Q295A
          0.16
          0.80-1.50
          0.045
          0.045
          0.55
          295
          390
          13
          >23
          Q295B
          0.16
          0.80-1.50
          0.040
          0.040
          0.55
          295
          390
          13
          >23
          Q345A
          0.20
          1.00-1.60
          0.045
          0.045
          0.55
          345
          510
          13
          >21
          Q345B
          0.20
          1.00-1.60
          0.040
          0.040
          0.55
          345
          510
          13
          >21
          GB/T9711.1-1997
          L175
          0.21
          0.60
          0.030
          0.030
          -

          Nb \ v \ Ti can be added to one of the three elements or any combination

          175
          -
          315
          825
          27
          The choice of impact energy and shear area of one or two toughness index L555 see the standard
          L210
          0.21
          0.90
          0.030
          0.030
          210
          335
          25
          L245
          0.26
          1.15
          0.030
          0.030
          245
          415
          21
          L290
          0.28
          1.25
          0.030
          0.030
          290
          415
          21
          L320
          0.30
          1.25
          0.030
          0.030
          320
          435
          20
          L360
          0.30
          1.25
          0.030
          0.030
          360
          460
          19
          L390
          0.26
          1.35
          0.030
          0.030
          390
          490
          18
          L415
          0.26
          1.35
          0.030
          0.030
          415
          520
          17
          L450
          0.26
          1.40
          0.030
          0.030
          450
          535
          17
          L485
          0.23
          1.60
          0.030
          0.030
          485
          570
          16
          L555
          0.18
          1.80
          0.030
          0.030
          555
          625
          15
          AP1 5L(PSL1)
           
           
           
           
           
          (Timax)
          Nb + V + Ti ≤ 0.15% Grade B Nb + V ≤ 0.03% Steel ≥ Grade B, (Niovium Vanadium Titanium or combinations maybe Usde but Nb + V + Ti ≤ 0.15%
           
          -
           
          -
                               
          Not required or can be selected impact energy and shear area of one or two toughness drama
           

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