Stainless Steel · Service
Stainless Steel Vacuum Heat Treatment
I need parts annealed or stress relieved without alpha case. Who has vacuum furnace capacity in my size?
What it is
Annealing, solution treating, aging or stress relieving in a vacuum or inert atmosphere furnace. Required for reactive metals, which would otherwise pick up oxygen and form a brittle surface layer.
Suppliers
Suppliers 4
Companies that perform this process on customer material.
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Bodycote Reportedsource
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Peters' Heat Treating VerifiedNADCAP Heat TreatingNADCAP Materials Testing Laboratories
NADCAP scope explicitly covers stainless steels, including solution treat and age for the PH grades.
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Solar Atmospheres VerifiedAS9100NADCAP Heat TreatingLargest unit 48 ft long, 150,000 lb capacity
Includes solution treat and age for the precipitation hardening grades. SIZE CAVEAT: this is the LARGEST UNIT across a seven-plant network, not the envelope of this particular process at any one site. Re-confirmed 2026-07-30 as 48 feet long and 150,000 pound capacity; the previously recorded '90+ furnaces' count could not be re-confirmed and has been dropped. Ask which plant and which furnace before sizing a part to it.
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Stack Metallurgical Group ReportedNADCAP Heat TreatingNADCAP Aerospace Quality Systems
Vacuum heat treating at the Portland plant under NADCAP heat treating accreditation.
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Input material
Forms this process takes in.