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not alloy round cold drawn round steel tube diameter 40mm pipe for gas spring

Cold drawn seamless steel tube with high precision,excellent brightness. It can used for gas spring, shock absorber,automotive &motorcycle spare parts etc

  • RAY STEEL TUBE
  • 4130 (30 CrMo)
  • 25.4*3
  • Cold drawn
Quantity:

2


Material Carbon Steel and Alloy Steel
Section Shape Round
Crfat Cold drawn
Size 25.4*3
Material
4130/30CrMo
Seamless Steel Tube Standard DIN2391, DIN17175, ASTM A106, ASTM A213, ASTM A53, ASTM A312,     ASTM A179, SAE 4130. JIS G3445, JIS G3444, JIS G 3461, JIS G3441, JIS G3454 etc
Mechanical property
Tensil strength: 651Mpa, Yield strength:548-554Mpa, Elongation: 30%
Packing Details 1.Internal wrapped with plastic film. External wrapped with woven bags.
2. wooden boxes to pack.
3. Iron stand.
Certification ISO9001
Delivery condition Annealing after BK
Length 1-12m as customer's requestment
Tolerance OD tolerance: +/-0.1mm, ID tolerance: +/-0.1mm

Chemical Component:


Steel Grade 碳 C 硅 Si 锰 Mn 硫 S 磷 P Cr    镍 Ni 铜 Cu








30CrMo 0.26-0.34 0.17-0.37 0.40-0.70 ≤0.035 ≤0.035 0.80-1.10 ≤0.30 ≤0.30
SCM430 0.28-0.33 0.15-0.35 0.60-0.90 ≤0.030 ≤0.030 0.90-1.20 ≤0.25 ≤0.30
4130 0.28-0.33 0.15-0.35 0.40-0.60 ≤0.040 ≤0.035 0.80-1.10 ≤0.030 ≤0.030

The production flow chart of seamless steel tube:

QQ图片20171018180801.png

The Chemical composition comparison sheet:


Steel Grade        C      Si     Mn         S         P       Cr        Ni     Cu
 1010 0.08-0.13 0.15-0.35 0.30-0.60    ≤0.030    ≤0.030     ≤0.20     ≤0.25    ≤0.25
 STKM 11A    ≤0.12    ≤0.35     ≤0.60    ≤0.040     ≤0.040


 1020 0.17-0.23 0.15-0.35 0.30-0.60    ≤0.050     ≤0.040


STKM13A     ≤0.25     ≤0.35 0.30-0.90     ≤0.20     ≤0.040    ≤0.040

A106 Gr.B     ≤0.25     ≤0.10 0.29-1.06     ≤0.035     ≤0.40     ≤0.40     ≤0.40    ≤0.40

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