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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
JIS G3445 Carbon steel tubes for machine structural purposes
JIS G3445 Carbon steel tubes for machine structural purposes
JIS G3445 Carbon steel tubes for machine structural purposes
JIS G3445 Carbon steel tubes for machine structural purposes
JIS G3445 Carbon steel tubes for machine structural purposes
JIS G3445 Carbon steel tubes for machine structural purposes
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