Domestic Market
409CB is a stainless steel welding wire made for strong and clean welds. It contains niobium, which helps control carbon and protects chromium from forming harmful carbides. This improves strength and corrosion resistance. 409CB is widely used in the automotive industry, especially for welding catalytic converters and exhaust system parts. It offers good yield and tensile strength with solid elongation. Suitable for DC (+) welding, it is available in different sizes and packing options.
Key Features and Benefits
SUPERMIG 409CB is engineered for consistent weld quality and long-term performance, ideal for automotive exhaust systems and catalytic converters.
- Niobium-Stabilised Formula – Niobium reacts preferentially with carbon, preventing chromium carbide formation and significantly improving corrosion resistance in welded components.
- Strong Mechanical Performance – Provides high yield strength (≥300 N/mm²) and tensile strength (≥450 N/mm²), ensuring durable, long-lasting welds under stress.
- Good Ductility – Offers elongation ≥25%, allowing welds to absorb vibration, thermal expansion and mechanical stress without cracking.
- Smooth DC (+) Welding – Optimised for direct current welding, giving stable arcs and consistent, defect-free weld beads.
- Wide Size Availability – Available from 0.60 mm to 1.60 mm, accommodating a variety of welding applications and thickness requirements.
- Flexible Finishes and Packing – Comes in bright, matte and semi-bright finishes, with spools and drums for convenient handling and bulk use.
SUPERMIG 409CB combines strength, ductility and corrosion resistance for reliable performance in critical automotive welding applications.
Specifications
The table below provides the key specifications and packing options for SUPERMIG 409CB, designed for reliable welding in automotive exhaust applications.
| Product Name | AWS/SFA | Yield Strength (N/mm²) | Tensile Strength (N/mm²) | Elongation A5 (%) | Impact Energy ISO-V (J) 20°C | Welding Conditions |
|---|---|---|---|---|---|---|
| SUPERMIG 409CB | ER 409Nb | ≥300 | ≥450 | ≥25% | – | DC (+) |
Type of Packing:
| Packing Type | Weight & Details |
|---|---|
| SD 300 / BS 300 | 11.34 Kgs / 25 Lbs, 15 Kgs / 30 Lbs / 33 Lbs Layer Wound Plastic/Metallic Spool |
| SD 200 | 4.54 Kgs / 10 Lbs Layer Wound Plastic Spool |
| SD 100 | 0.700 Kgs / 0.910 / 2 Lbs Layer Wound Plastic Spool |
| Mig Wire in Drum | In drums of 100–250 Kgs (200–550 Lbs) |
This specification ensures consistent welding quality, mechanical strength and ease of handling for various production needs.
Properties
SUPERMIG 409CB offers a combination of strength, durability and corrosion resistance, making it ideal for automotive welding applications.
- Niobium-Stabilised Composition – Niobium reacts with carbon first, preventing chromium carbide formation and improving corrosion resistance.
- High Mechanical Strength – Minimum yield strength of 300 N/mm² and tensile strength of 450 N/mm² ensures durable, long-lasting welds.
- Good Ductility – Elongation ≥25% allows welded joints to flex under thermal and mechanical stress without cracking.
- DC (+) Welding Compatible – Provides smooth arc performance and consistent, defect-free weld beads.
- Wide Size Range – Available from 0.60 mm to 1.60 mm to suit different welding needs.
- Multiple Finishes and Packing Options – Bright, matte and semi-bright finishes; supplied in spools and drums for easy handling and bulk use.
SUPERMIG 409CB combines strength, flexibility and corrosion resistance for reliable performance in critical welding applications.
Related Products
Explore the range of other welding wires that complement SUPERMIG 409CB for various stainless steel applications:
- 304L – Low-carbon austenitic stainless steel wire, ideal for general corrosion-resistant welding.
- 307 – Designed for welding austenitic stainless steels, offering good ductility and corrosion resistance.
- 307Si – Silicon-enhanced variant of 307, providing improved fluidity and reduced cracking during welding.
- 308 / 308H – Widely used for welding 18/8 stainless steels, with 308H offering higher carbon for added strength.
These products provide options for different stainless steel grades and applications, ensuring strong, reliable welds across a range of industrial and automotive projects.
