Alloy Grade / UNS: CB7Cu-1

  • Overview

    Extremely high strength stainless steels that are more corrosion resistant than 400-series martensitics.

  • Typical Uses

    Aerospace, chemical and food processing equipment, cylinders, gears, hollow shafts, landing gears, marine gas turbine, nuclear flow control, pump and valve components, pressure vessels, shaft sleeves, turbine engine parts.

  • MetalTek Grade

    17-4 PH®

* Produced under license of AK Properties / ARMCO Advance Materials Corp.

Similar Specifications

Cast UNS: J92180

Wrought UNS: S17400

Wrought Grade: 17-4 PH®

Cast Grade: CB7Cu-1

Cast ASTM: A747

Military/AMS: AMS 5398

* AMS specifying sand casting.

Typical Chemical Composition (% by wt.)

Aluminum: n/a

Carbon: 0.07

Chromium: 15.5-17.5

Manganese: 0.7

Iron: n/a

Copper: 2.5-3.2

Nickel: 3.6-4.6

Lead: n/a

Tin: n/a

Silicon: 1

Zinc: n/a

Other: Nb 0.15-0.35

Minimum Mechanical Properties

Heat Treatment: Solution Anneal And Age

NOTES: Properties vary with heat treatment.