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Changzhou Hongtai Precision Steel Pipe Co., Ltd.

Steel Pipe, Seamless Steel Pipe, Carbon Steel Pipe manufacturer / supplier in China, offering Sktm 11A 12A Carbon Steel Pipe for Motorcycle Bushing Tube Sleeve, JIS G3445 Stkm12b Seamless Steel Pipe Bushing Tube Sleeve, JIS G3445 Stkm12A Seamless Steel Pipe Bushing Tube Sleeve and so on.

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Supplier Homepage Product Bushing/sleeve steel pipe Sktm 11A 12A Carbon Steel Pipe for Motorcycle Bushing Tube Sleeve

Sktm 11A 12A Carbon Steel Pipe for Motorcycle Bushing Tube Sleeve

FOB Price: US $400-900 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $400-900/ Piece
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Port: Tianjin, China
Production Capacity: 600 Tons Per Month
Payment Terms: L/C, T/T, Western Union, Paypal, Money Gram

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Basic Info
  • Model NO.: HTSP STKM
  • Technique: Cold Drawn
  • Surface Treatment: Oiled
  • Section Shape: Round
  • Delivery Time: 30-45days
  • Length: Customized
  • Certificate: ISO, BV
  • Steel Grade: Stkm 11A/12A
  • Transport Package: Hexagon Woven Bags
  • Origin: China
  • Type: Seamless
  • Material: Carbon Steel
  • Usage: Hydraulic/Automobile Pipe, The Shock Absorber
  • Capacity: 1000t/Month
  • Delivery Condition: Bk, Bkw, Bks, Nbk, Gbk
  • Application: Automobile and Motorcycle,Oil Cylinder
  • Wall Thickness: 0.5-20mm
  • Trademark: HTSP
  • Specification: 6-180MM
  • HS Code: 7304391000
Product Description

Product Name

E215 steel pipe

E235 steel pipe

E355  steel pipe

chemical analysis

C: 0.10;Si: 0.05;Mn: 0.70;P: 0.025; S: 0.025;Al: 0.025

C: 0.17;Si: 0.35;Mn: 1.20;P: 0.025; S: 0.025

C: 0.22;Si: 0.55;Mn: 1.60;P: 0.025; S: 0.025

Tensile Strength

+C, 430MPa; +LC, 380MPa;+SR, 380MPa;+A, 280MPa;+N,290-430MPa

+C, 480MPa; +LC, 420MPa;+SR, 420MPa;+A, 315MPa;+N, 340-480MPa

+C, 640MPa; +LC, 580MPa;+SR, 580MPa;+A, 450MPa;+N,490-630MPa

Yield strength

+SR, 280MPa; +N, 215MPa

+SR, 350MPa;

+N, 235MPa

+SR, 450MPa; +N, 355MPa




As customer s request


Standard export packing, packed in woven bags, with two nylon slings, or can be customized as request

Heat Treatment/      Delivery Condition

  1. Cold finished (hard)   BK(+C)

Tubes do not undergo heat treatment following the final cold forming and, thus, have a rather high resistance to deformation

  1. Cold finished (soft)    BKW(+LC)

The final heat treatment is followed by cold drawing involving limited deformation. Appropriate further processing allows a certain degree of cold forming (e.g. bending, expanding)

  1. Cold finished and stress-relieved annealing BKS(+SR)

Heat treatment is applied following the last cold forming process. Subject to appropriate processing conditions, the increase in the residual stresses involved enables both forming and machining to a certain degree.

  1. Annealed    GBK(+A)

The last Cold forming process is followed by annealing in a controlled atmosphere.

  1. Normalized   NBK(+N)

The last cold forming process is followed by annealing above the upper transformation point in a controlled atmosphere.

Delivery Time

Within 35-50 days from receiving deposit

Payment Term

100% L/C at sight or 30% deposit, 70% balance against copy of B/L


Pipes for automobile and motorcycle

Main Market

Asia, Middle East, Europe, etc.

Product Description

Outer diameter: 25mm -500mm 

Wall thickness: 2-50mm

Material: ST52, Q345B, CK20, CK45, SAE1026

Standard: GB/T8713-88, GB/T3639-2009, DIN2391, EN10305

Cold Drawn Tube can be produced according to the demands of costumers that the degree of precision can reach H9/H11.
Material & Chemical Composition
 DIN2391 standard ST52, EN10305 standard E355, 16Mn, ASTM A106B, C20/20#, CK45

Sktm 11A 12A Carbon Steel Pipe for Motorcycle Bushing Tube Sleeve
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