Chemical composition

Physical properties

15-7PH material properties

15-7PH is a semi-austenitic precipitation hardening stainless steel with high strength, high hardness and good corrosion resistance. The overall corrosion resistance in heat treated TH 1050 and RH 950 conditions is worse than that of standard hardenable stainless steels of the chromium-based 400 series, but not as good as that of the chromium-nickel-based 304 stainless steels.

PH15-7Mo (type 632) national standard 0Cr15Ni7Mo2Al, Japan SUS632, is a steel developed by replacing 2% of chromium in 0Cr17Ni7Al steel with 2% molybdenum. Its basic properties are similar to 0Cr17Ni7Al steel, but the overall performance is better than it. In the austenite state, it can withstand various cold forming and welding processes, and then the highest strength can be obtained after heat treatment; it has excellent high temperature strength below 550 ℃. It is used in the manufacture of aviation thin-walled structural parts, various containers, pipes, springs, valve membranes, ship shafts, compressor discs, reactor parts, and various chemical equipment and other structural parts.

Advantage

1. High strength for demanding applications.

2. Good corrosion resistance in various environments.

3. Hardenability through heat treatment.

4. Formability for ease of fabrication.

5. Toughness even after heat treatment.

6. Versatility across industries like aerospace and automotive.

7. Cost-effectiveness for many applications.

8. Readily available in various forms for manufacturing needs.

15-7PH material application areas

(15-7PH) 0Cr15Ni7Mo2Al stainless steel is widely used in the chemical industry. It is mainly used to manufacture various containers, pipes, springs, diaphragms, etc.