Why Aerospace Manufacturing Depends on High-Purity Gases from nexAir

Parts that fly need to be perfect. There’s no inspecting a turbine blade after it’s installed in an engine at 35,000 feet, no way to check if a landing gear component developed a crack during the last hundred takeoffs. Aerospace manufacturing gets one shot to build components right, and gas purity during fabrication plays a bigger role in that outcome than most people realize.

The metals used in aerospace—titanium, nickel superalloys, specialized aluminum alloys—behave differently than the steel most fabricators work with daily. Small amounts of contamination that wouldn’t matter on a structural beam can ruin an aerospace component. We’re talking about impurities measured in parts per million affecting whether a part meets specification or becomes scrap.

Why Aerospace Alloys Require High-Purity Gases

Aerospace manufacturing depends on high-purity gases because the alloys used in flight components react to contamination in ways that compromise their engineered properties.

Take titanium welding as an example. Moisture in your shielding gas introduces hydrogen into the weld metal. The weld looks fine, passes visual inspection, but the hydrogen sits in the microstructure waiting. Put that part under stress and it cracks. Nickel superalloys face different problems—oxygen contamination during heat treatment changes their surface chemistry and reduces corrosion resistance. These materials get selected specifically because they handle extreme environments. Contaminate them during processing and they lose the properties they were chosen for. The contamination levels causing these problems measure in parts per million, amounts so small they have zero effect on structural steel but ruin aerospace components.

How to Control Purity from Production to Delivery

Controlling purity from production to delivery requires dedicated handling systems that prevent cross-contamination, testing each batch before filling, and preparing cylinders properly to maintain gas integrity during transport.

We run aerospace gases through equipment that never handles industrial-grade supply. Each batch gets tested before filling to verify contamination levels meet targets. Cylinders get evacuated and purged multiple times to clear out residual contaminants. Valves get sealed right after filling to keep atmospheric moisture and oxygen out during transport. The gas arriving at your facility matches the purity levels it had when it left ours because we control every step in between.

What Documentation Proves for Quality Systems

Generic certificates stating typical analysis values don’t satisfy aerospace quality requirements. You need actual test results for the gas lots used on specific part batches. We provide lot-specific analytical data showing measured oxygen, moisture, and contamination levels for each delivery. When an auditor asks for verification that shielding gas met purity requirements on a particular production run, you have real test data connecting to your manufacturing records. This traceability closes gaps in your quality documentation without requiring you to chase down information or accept generic supplier statements.

Get Aerospace-Grade Supply That Meets Your Requirements

Aerospace fabrication needs gases significantly cleaner than what works for general manufacturing, and our team knows the alloys and the purity levels requires. We help you select gases based on your specific materials and processes, decisions backed by our expert KnowHow™ in aerospace manufacturing. 

Contact our team to discuss your aerospace fabrication requirements. We’ll recommend gas solutions that deliver the consistent purity and traceability you need, helping you Forge Forward with reliable supply that supports your quality standards.