JIS G 3445 Grade STKM 15A Carbon Steel Seamless Tubes
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Solitaire Steel is a top supplier and exporter of JIS G 3445 Grade STKM 15A Carbon Steel Seamless Tubes, which are widely used for general-purpose applications worldwide. Known for their strength, durability, and ductility, these tubes meet JIS standards and are commonly referred to as carbon steel tubes.
The JIS G 3445 Grade STKM 15A specification covers carbon steel tubes used in machine structures. The mechanical properties of this steel grade can be enhanced through heat treatment. This controlled process of heating and cooling helps achieve specific characteristics by changing the steel’s internal structure.
At Solitaire Steel, we are committed to delivering top-quality STKM 15A carbon steel pipes and exceptional customer service. We offer a wide selection of steel products, including stainless steel pipes, tubes, sheets, and plates. For reliable STKM 15A carbon steel pipes that meet JIS G3445 standards, contact Solitaire Steel today to get more information or request a quote.
STKM 15A Carbon Steel Tube Specification
STKM 15A carbon steel seamless tubes are widely recognized for their versatility in general-purpose applications worldwide. These tubes are valued for their excellent strength, ductility, and long-lasting durability. Manufactured according to JIS specifications, they are commonly referred to as carbon steel tubes and are trusted for their reliable performance across various industries.
| Product | STKM 15A STKM 15C steel tube JIS G3445 carbon steel tube for machine structural purpose |
|---|---|
| Standard | JIS G3445 |
| Material | STKM 15A STKM 15C |
| Surface | Black paint, varnish, oil, galvanized |
| Pipe Length | 5.8 m to 12 m, can be customized according to the length requirements |
| Pipe Ends | Plain Ends, Beveled Ends |
| End Protector | 1. Plastic caps (small OD) 2. Iron protector (large OD) |
| Application | Fluid pipe, oil pipe, gas pipe, structure pipe, boiler tubes |
| Test | Chemical Component Analysis, Mechanical Properties, Technical Properties, Exterior Size |
| Productivity | 50000 tons per month |
| Min Order | 20 ton |
| Remark | Special design available according to requirement |
Chemical Composition of grade STKM15A
| C | Si | Mn | P | S |
|---|---|---|---|---|
| 0.25-0.35 | max 0.35 | 0.3-1 | max 0.04 | max 0.04 |
Mechanical properties of grade STKM15A
| Assortment | Yield point or Proof stress | Tensile strength | Elongation | Reduction of area | Charpy impact strength |
| – | N/mm 2 | N/mm 2 | % | % | J/cm 2 |
| Tubes | 275 | 470 | 22 |
STKM 15A Carbon Steel Tube Dimensions
| Execution | Size Range | OD Tolerance | Wall tolerance |
|---|---|---|---|
| Hot-rolled Tube | OD – 80 mmOD > 80 mmWall < 12 mmWall – 12 mm | ± 0.4 mm± 0.5 % of OD | ± 0.7 mm± (5 % x wallthickness + 0.1 mm |
| Hot-rolled peeled tube | All sizesWall < 12 mmWall – 12 mm | + 0.25/- 0 mm | ± 0.8 mm± (5 % x wall thickness+ 0.2 mm) |
| Cold Worked tubecold-rolled or cold-drawn | OD < 40 mmOD 40 – 80 mmOD > 80 Wall Thickness < 6 mm Wall Thickness6 – 8 mm Wall Thickness > 8 | + 0.30/- 0 mm*+ 0.35/- 0 mm*+ 0.40/- 0 mm* | ± 0.30 mm± 0.35 mm± 0.40 mm |
Standard length tolerances of JIS G 3445 Grade STKM 15A
| Component length (mm) | OD 30-100 mm | OD 100-254 mm |
| 10-100 | + 1.0/- 0 | + 2.0/- 0 |
| 100-600 | + 2.0/- 0 | + 3.0/- 0 |
| 600-1200 | + 3.0/- 0 | + 4.0/- 0 |
| 1200-5000 | + 5.0/- 0 | + 6.0/- 0 |
STKM 15A Carbon Steel Tube Applications
STKM 15A carbon steel tubes are widely used in various industries due to their strength and versatility. Common applications include machinery, automotive components, bicycle frames, water pipelines, gas lines, and the oil and gas sector. These tubes are reliable for both structural and industrial uses.
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JIS G 3445 Grade STKM 15A Carbon Steel Seamless Tubes are widely used for general applications. Known for ductility and durability, these tubes meet JIS standards for carbon steel.
JIS G 3445 Grade STKM 15A Carbon Steel Seamless Tubes are widely used for general applications worldwide. Known for their ductility, strength, and durability, these tubes meet JIS specifications for carbon steel.
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