C25 MIG Welding Gas, 300 cu/ft (Cylinder Size T, 50)

Product Overview

Our 75/25 Argon/CO₂ Blend is the ultimate, multi-purpose shielding gas designed specifically for MIG (GMAW) welding on carbon and mild steels. By blending 75% Argon with 25% Carbon Dioxide, this mix delivers the perfect balance of arc characteristics. The argon component provides a smooth, highly stable arc with minimal spatter, while the carbon dioxide ensures deep, reliable joint penetration and excellent puddle control.

Often referred to as C25, this blend is the top choice for automotive sheet metal work, structural steel fabrication, agricultural equipment repair, and general hobbyist welding where clean, high-strength welds are non-negotiable.

Key Features & Benefits

• Great for general use: 75/25 is the most common mix because it allows you to weld the most common metal (mild steel) across the widest range of thicknesses (from thin sheet metal to heavy plate), in any position, with minimal cleanup and high joint strength.
• Minimal Spatter: Saving you valuable time and money on post-weld cleanup and grinding.
• Superior Puddle Control: Optimizes surface tension in the weld pool, making it exceptionally easy to handle in all welding positions (flat, vertical, overhead).
• Deep Joint Penetration: The 25% $\text{CO}_2$ content provides excellent thermal conductivity, ensuring deep side-wall fusion and preventing cold-lap defects.
• Reduced Burn-Through: Ideal for thin-gauge materials and sheet metal, offering a forgiving arc that prevents overheating and warping.

Primary Welding Applications

Note: This gas blend is optimized for short-circuit and globular transfer modes on carbon steels. It is not recommended for spray-transfer welding or for use on stainless steel or aluminum.

Technical Specifications

• Composition: 75% Argon, 25% Carbon Dioxide
• Classification: AWS A5.32 / ISO 14175-M21
• Cylinder Valve Outlet: CGA 580 (Standard for Inert/Mix Gases)
• Recommended Transfer Mode: Short-Circuit Transfer, Globular Transfer
• Gas Density: Heavier than air (ensures excellent shielding coverage over the weld pool)
• Cylinder Size: Large, T, 50L 300CF
  
• Cylinder Height: 1409mm / 55.5" (Approx.)
• Cylinder Width: 228.6mm / 9" (Approx.)
• Cylinder Tare Weight: 60.8kg / 134 lb (Approx.)
• TDG Name: COMPRESSED GAS, N.O.S.* (Argon, Carbon Dioxide)
• Hazard Class: CA-2.2 (Non-flammable, non-toxic gas)
• UN Number: UN1006

⚠️ Safety & Handling Information

• Storage: Always secure cylinders in an upright position using chains or carts. Store in a cool, well-ventilated area away from direct heat or open flames.

• Ventilation: $\text{CO}_2$ and Argon are both asphyxiants and heavier than air. Ensure your workspace has adequate ventilation to prevent the displacement of oxygen.

• Equipment: Always use a designated CGA 580 pressure regulator and check for gas leaks before striking an arc.