Technical Gas Ar Shield Blend — technical blends tuned to the metal being joined
A Technical Gas Ar Shield Blend from REAL GAZ combines argon with a controlled fraction of a second gas to change arc shape, heat input and weld bead appearance. Each addition has a purpose: CO₂ raises penetration on carbon steel, oxygen improves wetting and helium widens the arc.
Blend ratios are fixed by weight in the cylinder, so the composition on the label holds from the first bar to the last.
Blend ratios are fixed by weight in the cylinder, so the composition on the label holds from the first bar to the last.
Compositions follow EN ISO 14175 groups M and I, and gas preparation follows ISO 6142 principles, supporting industrial welding procedures and laboratory checks.
🏭 Where Argon Shield Blends Are Used
- ⚙️ Carbon steel MAG welding — argon with CO₂ gives stable transfer and good side-wall fusion on structural work;
- 🔧 Stainless steel fabrication — argon with a small oxygen or CO₂ addition keeps the bead bright and the oxide layer thin;
- 🏗️ Pipe and pressure vessels — consistent blend composition supports qualified welding procedure specifications;
- 🚗 Automotive and sheet metal — low-spatter blends suit robotic cells running thin material at high speed.
💡 Why Choose REAL GAZ
- ✅ Procedure-friendly — a fixed, certified composition helps keep weld procedure records valid;
- 🧪 Low spatter — well-matched blends reduce cleaning time after welding;
- 🎯 Choice of ratios — several argon-based ratios are available for different alloys;
- 🔒 Stable mixing — blending by weight avoids layering inside the cylinder;
- 📄 Certificate of Analysis (CoA) — supplied with every order.
🔬 Quality Control & Safety
- cylinders evacuated before every blend fill;
- gravimetric blending with calibrated balances;
- composition verified by gas analysis;
- valve and fitting leak checks.
Cylinders comply with ADR / UN transport rules and relevant EN/ISO standards.
📦 Grades, Cylinders & Handling
- 📌 Mixing — roll or gently agitate large cylinders after long storage, as the manufacturer advises;
- 📌 Flow — set flow rates to the torch maker's guidance to avoid turbulence at the pool;
- 📌 Hoses — use dry, clean hoses and replace cracked lines promptly;
- 📌 Labelling — check the composition label before connecting to a new job.
🧭 Matching Blend to Process
Spray transfer on thick carbon steel usually uses a lower CO₂ share, while short-arc work on thin sheet benefits from a higher active-gas content that tightens the arc and cools the pool. Adding helium raises heat input and travel speed on thick aluminium and copper. Stainless steel fabricators prefer blends with only a trace of active gas, so the weld surface stays bright and needs little pickling. Because every blend is weighed rather than estimated, a welder who switches cylinders mid-job sees the same arc behaviour. Ask our team for a short comparison of two or three candidate ratios, and run a test coupon before committing a whole project.
⚙️ Trusted Gas Solutions
REAL GAZ delivers each Technical Gas Ar Shield Blend to workshops, shipyards and contractors in the Caucasus, Central Asia, Turkey and the USA, with technical support on blend selection. Welding engineers can discuss base metal, thickness and position before choosing a ratio.
REAL GAZ — the right blend, weld after weld.