JIS G3445 Oil-dip Machine Structural Mild Steel Tube , STKM11A STKM12A Carbon Steel Pipe
Quick Detail
Products: JIS G3445
Carbon steel tubes for machine structural purposes .
Grade: STKM11A / STKM12A / STKM12B / STKM12C / STKM13A etc
Size:(mm)
Out Dimensions: 6mm ~ 350mm
Wall Thickness: 0.8mm ~ 35mm
Length: Fixed(6m,9m,12,24m) or normal length(5-12m)
Description
Standards: JIS G3445
Carbon steel tubes for machine structural purposes .
Size (mm):
Outer Dimensions: 6mm ~ 350mm
Wall Thickness: 0.8mm ~ 35 mm
Length: max 24000mm
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: Beveled/black painting/ plastic caps/ in bundles/ steel strips/ wooden protection
Inspection and Test: Chemical Composition Inspection, Mechanical Properties Test(Tensile Strength, Yield Strength,Elongation, Flaring, Flattening, Bending, Hardness, Impact Test),Surface and Dimension Test,Nodestructive Test, Hydrostatic Test.
Surface treatment:Oil-dip, Varnish, Passivation, Phosphating, Shot Blasting
Mark: As requested.
Delivery Condition:Annealed, Normalized, Normalized and Tempered
Chemical Composition (%)
| | | Chemical Composition (%) |
| Standard | Steel Grade | C | Si | Mn | P | S |
| JIS G3445 | STKM11A | ≤0.12 | ≤0.35 | ≤0.60 | ≤0.040 | ≤0.040 |
| STKM12A | ≤0.20 | ≤0.35 | ≤0.60 | ≤0.040 | ≤0.040 |
| STKM12B |
| STKM12C |
| STKM13A | ≤0.25 | ≤0.35 | 0.30-0.90 | ≤0.040 | ≤0.040 |
| STKM13B |
| STKM13C |
| STKM14A | ≤0.30 | ≤0.35 | 0.30-1.00 | ≤0.040 | ≤0.040 |
| STKM14B |
| STKM14C |
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 |
Tolerances on outside diameter
| Division | Tolerances on outside diameter |
| No. 1 | Under 50 mm | ?0.5 mm |
| 50 mm | ±1% |
| No. 2 | Under 50 mm | ±0.25 mm |
| 50 mm | ±0.5% |
| No. 3 | Under 25 mm | ±0.12 mm |
| 25 mmD<40 mm | ±0.15% |
| 40 mmD<50 mm | ±0.18% |
Tolerances on Wall Thickness
| Division | Tolerances on outside diameter |
| No. 1 | Under 4 mm | +0.6 mm-0.5 mm |
| 4 mm | +15%-12.5% |
| No. 2 | Under 3 mm | ±0.3 mm |
| 3 mm | ±10% |
| No. 3 | Under 2 mm | ±0.15 mm |
| 2 mm | ±8% |
Applications
Tubes used for machinery, automobiles, bicycles, furniture, appliances and other machine parts.
Product Photo
Factroy Pictures
Pipe & Tube Processing
Steel Pipe & Tube Application
Packaging and Shipping
Certificates
FAQ:
Q1: ARE YOU FACTORY OR TRADER?
A1: Wuxi Sylaith Special Steel Co.,Ltd is a manufacturer of steel pipe and tube since 2010.
We've gained our Export Right and become an integrated company of industry and trade in order to satisfy buyer's multi-request on different material and products.
Q2: WHICH MATERIAL/PRODUCTS YOU CAN PROVIDE?
A2: Seamless Stainless Steel Pipe / Tube, Seamless Carbon Stainless Steel Pipe /Tube,Galvanized Steel Tube witn any Shape and Welded pipes can also be available.
Q3: HOW TO GET A SAMPLE?
A3: FREE samples are available for your checking and testing. And to get free samples, you need to send us you detailed receiving address (including post code) and your DHL/FedEx/UPS account for collecting samples, courier cost will be paid in your side.
Q4:CAN YOU PRODUCE THE PRODUCTS ACCORDING TO MY OWN DRAWINGS?
A4: Yes, we can produce the products according to your drawings that will be most satisfy you.
Q5: HOW TO VISIT YOUR FACTORY?
A5: Most of the main cities have flights to Shanghai; you can take flight to Shanghai Putong/Hongqiao International Airport.
If you come from Hongkong, it will take 2 hours by flight (every day 5 flight around noon time).
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JIS G3445 Oil-Dip Machine Structural Mild Steel Tube , STKM11A STKM12A Carbon Steel Pipe Images
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