STKM13C Seamless Steel Tube | JIS G3445 High-Strength Hydraulic Tubing
JIS G 3445 Grade STKM 13C Seamless Steel Tube, also known as mild steel pipes and tubes. STKM 13C Tubes are low-cost Low Carbon Steel Tubes with max 025% carbon content that are easy to form and shape. These pipes are manufactured as per JIS Specification and commercially referred to as cds pipes or ms pipes.
STKM13C seamless steel tubes are high-quality carbon steel pipes manufactured under the Japanese Industrial Standard (JIS G3445). Designed for mechanical and structural applications, these tubes combine exceptional strength, dimensional accuracy, and cost-efficiency, making them ideal for:
- Automotive chassis components
- Hydraulic cylinder barrels
- Industrial machinery frameworks
- Agricultural equipment
STKM13C Seamless Steel Tubes
Precision Engineered for Durability & Performance
| Standard | Grade | Chemical Components (%) | Mechanical properties （Bright Annealing) |
|||||||||
| C | Si | Mn | P | S | Cr | Ni | Cu | Tensile Strength (Mpa) |
Yield Strength (Mpa) |
Elongation (%) |
||
| JIS G3445 | STKM 13C | 0.2 | 0.21 | 0.38 | 0.011 | 0.003 | 0.07 | 0.01 | 0.03 | 635 | 565 | 16 |
Precision Manufacturing Process
- Cold Drawn Seamless (CDS): Enhances surface finish (Ra ≤1.6μm) and dimensional accuracy (±0.10mm OD tolerance).
- Heat Treatment: Stress-relieved to eliminate internal defects and improve machinability.
Corrosion Resistance: Optional black oxide coating or galvanizing for harsh environments.
Certifications: Compliant with JIS G3445, ISO 9001:2015, and RoHS.
Why Choose Our STKM13C Tubes?
- Customization Expertise: Tailored cutting, threading, chamfering, and coating services. MOQ as low as 500kg for prototype orders.
2. Global Export Advantages: Fast Logistics: 15–20 days delivery to EU/US ports with real-time tracking.
3. Certified Packaging: Anti-rust VCI coating + wooden crate protection.
4. Documentation: Full compliance with CO, MILL Certs, and SGS reports.
- Cost-Efficiency: Direct factory pricing (no middlemen).
- Quality Assurance: 100% pre-shipment inspection.
- Technical Support: 24/7 engineering consultation via email/WhatsApp.