August 17, 2026
330 stainless heat-treat structures
Furnace baskets and fixtures in 330 (N08330): why not 304, how we form 4–14 mm from coil, and why TIG shows up more than resistance weld.
A heat-treat wire basket is a structure that has to survive someone else’s furnace. 304 sags and scales in that air. 330 — UNS N08330, a nickel-chromium high-temp alloy — is why the print should not say “stainless.” Buyers search 330. Metallurgy is N08330.
Formed from coil, not bar leftovers
We run 4–14 mm from coil, cut-to-length through 14 mm rod. Rims are often 7/16 or 1/2 in. Infill can be lighter if the print allows. Springback does not copy 1018. The inside radius belongs on the drawing.
Join for furnace service
Resistance weld is the grid default on carbon. 330 often is not a clean resistance candidate. Then the joint is TIG, nickel-bearing filler — not “stainless rod.” Two jobs share the words heat treat: the basket that goes into a furnace, and stress-relief on a carbon form after bend. Those are different lines.