BÖHLER N701 covers a corrosion-resistant steel in the form of bars, wire, forgings in the solution heat treated condition.
It is a martensitic precipitation hardenable chromium-nickel-copper steel possessing high strength and toughness. Further strength increments can be obtained by cold forming, followed by a precipitation hardening treatment.
These products have been used typically for parts requiring corrosion resistance and high strength up to 600 °F (316 °C), but usage is not limited to such applications. Improved corrosion resistance compared to the 13% or 17% chromium steels. Remelting processes are used to improve steel purity and homogeneity.
Certain processing procedures and service conditions may cause these products to become subject to stress-corrosion cracking.
Typical applications are reactor construction, highly stressed pump parts, springs, ship shafts, plastic injection, compression molds and medical instruments.
| Market grade | SEL | EN | UNS |
|---|---|---|---|
| 15-5 PH | 1.4545 | X5CrNiCu15-5 | S15500 |
| ASTM |
|---|
| A564 |
| C | Si | Mn | P | S | Cr | Ni | Cu | Nb | |
|---|---|---|---|---|---|---|---|---|---|
| max. 0.07 | max. 1.00 | max. 1.00 | max. 0.040 | max. 0.030 | 14.00 to 15.50 | 3.50 to 5.50 | 2.50 to 4.50 | 0.15 to 0.45 |
