- Contracts, with mills, are written to secure controlled metallurgy for materials used in manufacturing (tube and bar) to assure consistency order to order.
- Only AISI T316L stainless steel with a sulfur content of .005-.017% is used for fitting manufacturing.
- All fittings, including welded assemblies, are annealed for stress relief and tolerance retention.
- Material Test Reports (MTR) are kept in a permanent file at Advance Fittings.
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