Stellite 12 Welding Rod | Cobalt-Based Hardfacing Alloy

Description Of Stellite 12 Welding Rod

Stellite 12 Welding Rod is a high-performance hardfacing rod manufactured from Stellite 12, a cobalt-chromium-tungsten alloy known for its exceptional wear resistance, high-temperature strength, and corrosion resistance. Stellite 12 contains approximately 30% chromium, 8.5% tungsten, and 1.4% carbon, providing a balance of hardness and toughness ideal for hardfacing applications.

Stellite 12 welding rods are widely used for hardfacing valve seats, pump sleeves, cutting tools, and other components subject to severe wear. The alloy maintains its hardness and mechanical properties at elevated temperatures up to 800°C, making it suitable for high-temperature and high-wear applications. The rods are suitable for TIG welding and oxy-acetylene welding, providing a smooth, crack-free deposit.

Stellite 12 welding rods are available in custom diameters and lengths, with surface finishes including bright, pickled, and ground. Typical applications include hardfacing valve seats, pump sleeves, cutting tools, and wear-resistant components.

Features Of Stellite 12 Welding Rod

• Excellent Wear Resistance: Stellite 12 offers superior resistance to abrasion, erosion, and galling.

• Outstanding High-Temperature Strength: Maintains hardness and mechanical properties up to 800°C.

• Good Corrosion Resistance: Resists harsh chemicals, acids, and seawater.

• Balanced Hardness and Toughness: The carbon and tungsten content provide a balance of hardness and toughness for hardfacing.

• Good Weldability: Suitable for TIG welding and oxy-acetylene welding, providing a smooth, crack-free deposit.

• Non-Sparking: Suitable for use in hazardous environments.

• Customizable Dimensions: Custom diameters and lengths available.

• Surface Finishes: Bright, pickled, ground.

Precautions Of Stellite 12 Welding Rod

• Health Hazards: Cobalt alloys contain cobalt and chromium, which may cause allergic reactions or respiratory issues. Use in well-ventilated areas. Wear appropriate personal protective equipment (PPE), including gloves and respirators.

• Welding Guidelines: Use appropriate welding parameters, including current, voltage, and travel speed, to achieve a smooth, crack-free deposit. Preheating and post-weld heat treatment may be required for certain base materials.

• Machining Guidelines: Use sharp carbide tooling, adequate cooling, and appropriate cutting speeds. Avoid generating fine dust. Collect and dispose of machining chips properly.

• Handling and Storage: Handle with care to avoid surface contamination or mechanical damage. Store in a dry, clean environment.

• Cleaning: Clean with a soft cloth or mild solvent. Avoid abrasive cleaners that could damage the surface.

Specifications Of Stellite 12 Welding Rod