Surface Finishing

Heat Treatment Services

Controlled thermal processing to achieve desired hardness, strength, and dimensional stability — essential for tool steel, alloy steel, and precipitation-hardened stainless components.

Process Overview

Hardening & Tempering

Quench and temper processes for carbon and alloy steels. Achieve specified HRC hardness with certified furnace charts.

Stress Relief

Post-machining stress relief to minimize distortion in large or thin-walled parts before final finishing passes.

Precipitation Hardening

17-4PH and 15-5PH stainless heat treated to H900, H1025, or H1150 conditions per AMS specs.

Specifications

ParameterSpecification
ProcessesAnnealing, quenching, tempering, stress relief, aging
MaterialsCarbon steel, alloy steel, 17-4PH, 15-5PH, tool steel
Hardness RangeHRC 20–62 depending on material and process
DocumentationFurnace charts and hardness test reports
StandardsAMS 2759, ASTM A255

Compatible Materials

  • 4140 / 4340 alloy steel
  • 17-4PH stainless
  • 15-5PH stainless
  • O1 / A2 tool steel
  • Carbon steel 1045

Applications

  • Shafts and gears
  • Tooling inserts
  • Aerospace fittings
  • High-strength fasteners
  • Mold components

Frequently Asked Questions

Should I heat treat before or after machining?

17-4PH and similar PH grades: machine in Condition A, then heat treat, then grind critical surfaces. Through-hardened steels: often rough machine, heat treat, then finish machine to account for distortion.

Do you provide hardness test reports?

Yes — Rockwell or Vickers hardness test reports included with every heat-treated batch. Furnace temperature charts available on request.

Can you coordinate heat treatment for my parts?

Yes — we manage the full process: machining, heat treatment at certified partners, return inspection, and final finishing if required.

Need Heat Treatment on Your Parts?

Upload your drawings and specify your finishing requirements — we'll quote machining and finishing together within 24 hours.

Request a Quote