17-4PH Alloy is a precipitated, hardened, martensitic stainless steel consisting of copper, niobium/columbium.

This grade has high strength, hardness (up to 300O C/ 572O F) and corrosion resistance.After heat treatment,

the mechanical properties of the product are more perfect, which can reach the compressive strength of up to 1100-1300 MPa (160-190 ksi).

Application field

• Offshore platforms, helicopter decks, other platforms

• Food industry

• Pulp and paper industry

• Aerospace (turbine blades)

• Mechanical parts

• Nuclear waste bins

Specifications: S8～S55

Surface: Black skin/acid picking

Status: 1. Solid solution 2. No heat treatment