JIS G3445 STKM12B Carbon steel tube for machine structural purposes
USD $500 - $750 /Ton
Min.Order:5 Tons
Liaocheng Kuncheng Pipe Co., Ltd.
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JIS G3445 steel pipe used for machinery, automobiles, bicycles, furniture, appliances and other machine parts.
JIS G3445 standard specifies the carbon steel tubes, hereinafter referred to as the thes, used for machinery, automobiles, bicycles, furniture, appliances and other machine parts.
Carbon steel tubes for machine structural purposes .
Standards: JIS G3445
Size (mm):
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 composition(mass fraction)(wt.%) of the STKM12B
C(%) | Si(%) | Mn(%) | P(%) | S(%) |
---|---|---|---|---|
Max 0.20 | 0.35 | Max 0.60 | 0.04 | 0.04 |
Yield Rp0.2(MPa) | Tensile Rm(MPa) | Impact KV (J) | Elongation A (%) | Reduction in cross section on fracture Z (%) | As-Heat-Treated Condition | HBW |
---|---|---|---|---|---|---|
947 (≥) | 758 (≥) | 34 | 44 | 43 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 442 |
Property | Density kg/dm3 | Temperature T °C/F | Specific heat J / kgK | Thermal conductivity W/mK | Electric resistance µΩ·cm |
---|---|---|---|---|---|
833 (≥) | 286 (≥) | 13 | 11 | 44 | Solution and Aging, Annealing, Ausaging, Q+T,etc |
Temp. °C/°F | Creep strain limit (10000h) (Rp1,0) N/mm2 | Creep rupture strength (10000h) (Rp1,0) N/mm2 | - | - | - |
747 | 212 | 738 | - | - | - |
Product type | Products | Dimension | Processes | Deliver Status |
---|---|---|---|---|
Plates / Sheets | Plates / Sheets | 0.08-200mm(T)*W*L | Forging, hot rolling and cold rolling | Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting |
Steel Bar | Round Bar, Flat Bar, Square Bar | Φ8-1200mm*L | Forging, hot rolling and cold rolling, Cast | Black, Rough Turning, Shot Blasting, |
Coil / Strip | Steel Coil /Steel Strip | 0.03-16.0x1200mm | Cold-Rolled & Hot-Rolled | Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting |
Pipes / Tubes | Seamless Pipes/Tubes, Welded Pipes/Tubes | OD:6-219mm x WT:0.5-20.0mm | Hot extrusion, Cold Drawn, Welded | Annealed, Solution and Aging, Q+T, ACID-WASHED |