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Precision Steel Pipe

  • JIS G3445 Cold Drawn Precision Seamless Steel Pipe
  • JIS G3445 Cold Drawn Precision Seamless Steel Pipe
  • JIS G3445 Cold Drawn Precision Seamless Steel Pipe

    JIS G3445 Cold Drawn Precision Seamless Steel Pipe

    Description:

    Usage:Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Machinery Industry, Chemical Industry, Mining, Construction & Decoration

    Section Shape:Round

    Transport Package:External Packing by PVC Bags and Knit Bags

    Specification:OD: 6mm-325mm; ID: 2-250mm

    parameters

    dard & Material Carbon Steel ASTM A519 Standard MT1010, MT1020, 1008, 1010, 1018, 1020, 1025, 1030, 1045, 1518
    JIS G3445 Standard STKM11A  STKM12A  STKM12B  STKM12C   STKM13A  STKM13B   STKM13C   STKM14A  STKM14B  STKM14C  STKM15A  STKM15C   STKM16A  STKM16C   STKM17A   STKM17C  STKM18A  STKM18B  STKM18C   STKM19A  STKM19C  STKM20A
    JIS G3473 Standard STC370, STC440, STC510A, STC510, STC540, STC590A, STC590B
    DIN 2391 Standard St 35, St45, St52
    EN 10297-1 Standard E235, E275, E315, E355, E470
    EN 10305-1 Standard E215, E235, E355
    EN 10305-4 Standard E215, E235, E355
    BS 6323-3 Standard HFS 3, HFS 4, HFS 5, HFS 8
    NF A49-311 TU 37-b, TU 52-b, TU 56-b, TU XC35
    Alloy Steel ASTM A519 Standard 1345, 3140, 4130, 4135, 4140, 4150, 4320, 4340, 5120, 5130
    JIS G3429 Standard STH11, 12 STH21, 122 STH31
    JIS G3441 Standard SCR420TK, SCM415TK, SCM418TK, SCM420TK, SCM430TK, SCM440TK
    Stainless Steel ASTM A511 Standard  MT304, MT304L, MT310S, MT316, MT316L, MT317, MT321, MT347,   MT403, MT410, MT431
    ISO Standard NACE MR-0175
     
     
    Size
      Size Range Tolerance
    OD 6-325mm -0.035 -- +0.045mm
    ID 2-250mm ±0.035mm
    WT 1-32mm depends on sizes
    Length random or fixed length +0-3.5mm
    Straightness 0.15:1000, 0.4:1000, 0.5:1000 1:1000 or customized
    Surface Roughness Ra 0.02-0.4μm

    introduction

    CHEMICAL COMPOSITION:

    Steel Grade C(%) Si(%) Mn(%) P(%) S(%) Nb/V(%)
    STKM11A ≤0.12 ≤0.35 ≤0.60 ≤0.040 ≤0.040 -
    STKM12A ≤0.20 ≤0.35 ≤0.60 ≤0.040 ≤0.040 -
    STKM12B ≤0.20 ≤0.35 ≤0.60 ≤0.040 ≤0.040 -
    STKM12C ≤0.20 ≤0.35 ≤0.60 ≤0.040 ≤0.040 -
    STKM13A ≤0.25 ≤0.35 0.30~0.90 ≤0.040 ≤0.040 -
    STKM13B ≤0.25 ≤0.35 0.30~0.90 ≤0.040 ≤0.040 -
    STKM13C ≤0.25 ≤0.35 0.30~0.90 ≤0.040 ≤0.040 -
    STKM14A ≤0.30 ≤0.35 0.30~1.00 ≤0.040 ≤0.040 -
    STKM14B ≤0.30 ≤0.35 0.30~1.00 ≤0.040 ≤0.040 -
    STKM14C ≤0.30 ≤0.35 0.30~1.00 ≤0.040 ≤0.040 -
    STKM15A 0.25~0.35 ≤0.35 0.30~1.00 ≤0.040 ≤0.040 -
    STKM15C 0.25~0.35 ≤0.35 0.30~1.00 ≤0.040 ≤0.040 -
    MECHANICAL PROPERTIES:

    Steel Grade Tensile Strength(N/mm²) Yield Strength(N/mm²)
    STKM11A ≥290 -
    STKM12A ≥340 ≥175
    STKM12B ≥390 ≥275
    STKM12C ≥470 ≥355
    STKM13A ≥370 ≥215
    STKM13B ≥440 ≥305
    STKM13C ≥510 ≥380
    STKM14A ≥410 ≥245
    STKM14B ≥500 ≥355
    STKM14C ≥550 ≥410
    STKM15A ≥470 ≥275
    STKM15C ≥580 ≥430