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JIS G3445 Carbon steel tubes

Carbon steel tubes for machine structural purposes .

Detailed Description

  • Carbon steel tubes for machine structural purposes .
  • Standards: JIS G3445
  • Size (mm):
    • Outer Dimensions: 19.05mm ~ 114.3mm
    • Wall Thickness:2.0mm ~ 14 mm
    • Length: max 16000mm
  • Application: Tubes used for machinery, automobiles, bicycles, furniture, appliances and other machine parts.
  • The main products of steel / steel grade: STKM11A, STKM12(A,B,C), STKM13(A,B,C), STKM14(A,B,C).
  • Packing: Bare/bundles/crates/crate protection at the both sides of tubes or as per customers' requirements .
  • Painting: as requested.

Chemical Compositions(%)

Grade C Si Mn P S
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

 

Mechanical Properties

Grade Yield Strength (Mpa) Tensile Strength (Mpa) Elongation (%)
STKM11A \ ≥290 ≥35
STKM12A ≥175 ≥340 ≥35
STKM12B ≥275 ≥390 ≥25
STKM12C ≥355 ≥470 ≥20
STKM13A ≥215 ≥370 ≥30
STKM13B ≥305 ≥440 ≥20
STKM13C ≥380 ≥510 ≥15
STKM14A ≥245 ≥410 ≥25
STKM14B ≥355 ≥500 ≥15
STKM14C ≥410 ≥550 ≥15

 

Products Photo Gallery

View or download the PDF catalogue of JIS G3445

 

Related Products

Tubes/pipes for Mechanical and Automobile
Application: motor-car construction, pneumatic and hydraulic operating mechanisms .

 

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