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Home > Carbon Steel > Carbon Steel JISG3445 Pipes
Bulan Pipes and Tubes, based in Jakarta, Indonesia, is a well-known manufacturer and supplier of Carbon Steel JIS G3445 Pipes, which are specifically crafted for automotive, mechanical, and structural uses. JIS G3445 is a Japanese industrial standard for carbon steel mechanical tubing, prized for its impressive strength, machinability, and formability. These pipes find their way into bike frames, furniture, automotive parts, and construction equipment, where reliability and precision are key. Bulan offers JIS G3445 pipes in various grades like STKM11A, STKM12A, and STKM13A, along with custom sizes and finishes to meet stringent dimensional and mechanical standards.
JIS G3445 Carbon Steel Pipes generally consist of Carbon (≤0.25%), Manganese (≤0.90%), Phosphorus (≤0.04%), and Sulfur (≤0.04%), depending on the grade (like STKM11A, STKM12A, etc.). These pipes are recognized for their solid tensile strength (~440 MPa) and yield strength (~290 MPa), with an elongation of 25–30%, striking a great balance between strength and ductility. They are easy to machine, bend, and weld, making them perfect for shaping into intricate designs. Their performance under moderate pressure and mechanical loads makes them a great fit for structural and automotive component applications.
| Standard | : | JIS G3445 |
| Description Name | : | STKM 11A Steel tube, STKM 12A steel tubes, STKM 12C steel tubes, STKM 13A steel tubes, STKM 13C steel tubes |
| Size | : | 6mm-340mm |
| Wall Thickness | : | 1mm-50mm |
| Shape | : | Round |
| Production Type | : | Cold drawn, cold rolled or hot rolled |
| Length | : | Single random length/ Double random length or as customer’s actual request max length is 10m |
| Grade | : | STKM 11A, STKM 12A, STKM 12C, STKM 12B, STKM 13A, STKM 13B, STKM 13C, STKM 15A, STKM 17A |
C | Si | Mn | P | S |
max 0.12 | max 0.35 | max 0.6 | max 0.04 | max 0.04 |
| 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 | 290 | 35 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Choosing Carbon Steel JISG3445 Pipes from Bulan Pipes and Tubes ensures outstanding corrosion resistance, high strength, and durability. Our Pipe is designed for diverse industrial applications, delivering reliability and performance in challenging environments while maintaining competitive pricing.
Bulan Pipes and Tubes is one of the largest Carbon Steel JISG3445 Pipes suppliers in Indonesia, Jakarta, providing a comprehensive range of high-quality pipes tailored for various industries, ensuring reliable delivery and exceptional service to meet diverse project needs.
Yes, we offer custom sizes for Carbon Steel JISG3445 Pipes to meet your specific requirements. Our team at Bulan Pipes and Tubes is committed to providing tailored solutions for all your Piping & tubing needs. For more details, contact us at sales@bulanpipes.id.
Carbon Steel JIS G3445 Pipes are widely utilized in automotive chassis, motorcycle frames, machine parts, furniture, and construction equipment, thanks to their outstanding formability, strength, and dimensional stability. These pipes are also ideal for boiler tubes, shock absorber cylinders, and transmission shafts, particularly in medium-load settings. Their high machinability makes them excellent for crafting precision mechanical components. In the furniture and appliance sectors, they’re appreciated for their ease of fabrication and cost-effectiveness. JIS G3445 pipes adhere to strict tolerances, making them perfect for applications where uniformity and strength are essential.
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