CarTech Custom 630 Project 70+ Stainless (17Cr-4Ni) stainless is an improved-machining version of conventional Stainless Type 17Cr-4Ni.

This alloy is a martensitic precipitation/age-hardening stainless alloy offering high strength and hardness along with excellent corrosion resistance. It has good fabricating characteristics and can be age hardened by a single-step, low temperature treatment.

Customers have reported that CarTech Custom 630 Project 70+ stainless offers significantly improved machinability characteristics over generic stainless type 17Cr-4Ni. This includes up to 15% and higher machining speeds with improved finishes and longer tool life.

CarTech Custom 630 Project 70+ PDB® stainless combines the superior machinability of CarTech Project 70+ stainless with improved straightness and half-standard or ISO h9 dimensional tolerances. This drawn bar has been used successfully in a variety of machining operations including CNC Swiss-type screw machines.

Applications:
CarTech Custom 630 Project 70+ stainless has been used for a variety of applications including oil field valve parts, chemical process equipment, aircraft fittings, fasteners, pump shafts, nuclear reactor components, gears, paper mill equipment, missile fittings, and jet engine parts.