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Home > Carbon Steel > Carbon Steel JISG3445 Pipes
Wissa Pipes in Kinshasa takes pride in offering high‑quality JIS G3445 Carbon Steel Pipes, specifically engineered for machine structural and mechanical applications. These precision‑manufactured tubes are built for longevity, strength and consistent performance — from automotive chassis parts to heavy industrial frames. Every pipe is produced with the care and exacting standards you’d expect from a trusted manufacturer: top‑grade materials, rigorous inspection and a commitment to customer satisfaction. Whether it’s for local Congo industry or export, our JIS G3445 pipes deliver the reliability and durability you need in structural and mechanical systems.
Under the standard JIS G3445 (Japanese Standard for carbon steel tubes for machine structural purposes), typical grades include STKM11A, STKM12 (A/B/C), STKM13 (A/B/C) and STKM14 (A/B/C). For example, STKM11A has a maximum carbon content of 0.12 %, silicon of 0.35 %, manganese 0.60 % and phosphorus/sulfur of 0.040 % each. PandaPipe+2netgms.com+2 Mechanical strengths vary by grade: for STKM12C, tensile strengths may reach ~470 MPa or higher and yield around ~355 MPa in some cases. seamlesscarbonsteelpipess.com+1 These pipes combine strength, weldability and machinability for reliable service.
| 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 Wissa 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.
Wissa Pipes and Tubes is one of the largest Carbon Steel JISG3445 Pipes suppliers in Kinshasa, Thailand, 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 Wissa Pipes and Tubes is committed to providing tailored solutions for all your Piping & tubing needs. For more details, contact us at sales@wissapipes.com.
JIS G3445 Carbon Steel Pipes are ideal wherever structural integrity and mechanical performance are required. You’ll find them in automotive parts (frames, steering components, suspension elements), in machinery and equipment frames, in furniture, appliances and other engineered systems. steeltubeschina.com+1 Wissa Pipes supplies these pipes to Congolese industries seeking durable, high‑precision solutions — whether for manufacturing lines, heavy‑duty equipment or structural frames. With our commitment to quality, you can count on these JIS G3445‑spec pipes to perform under load, resist fatigue and deliver long service life, helping you reduce maintenance and downtime.
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