Home Categories Send inquiry

17-4PH precipitation-hardening steel, also known as 630 alloy steel, steel plate, and steel pipe.


17-4PH alloy is a precipitation-hardening, martensitic stainless steel composed of copper, niobium, and tantalum. Characteristics: After heat treatment, the product exhibits improved mechanical properties, achieving compressive strength of up to 1100-1300 MPa (160-190 ksi). This grade is not suitable for use at temperatures exceeding 300º C (572º F) or very low temperatures. It demonstrates good corrosion resistance in atmospheric and dilute acid or salt environments, comparable to 304, and superior to ferritic steel 430.

17-4PH alloy is a precipitation-hardening, martensitic stainless steel composed of copper, niobium, and tantalum. Characteristics: After heat treatment, the product exhibits improved mechanical properties, achieving compressive strength of up to 1100-1300 MPa (160-190 ksi). This grade is not suitable for use at temperatures exceeding 300º C (572º F) or very low temperatures. It demonstrates good corrosion resistance in atmospheric and dilute acid or salt environments, comparable to 304, and superior to ferritic steel 430.