BÖHLER N700 is a premium aircraft-quality corrosion-resistant steel in the form of bars, wire, forgings up to 8.0 inches (203 mm) in diameter or least distance between parallel sides in the solution heat treated condition and stock of any size for forging.
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.
Certain processing procedures and service conditions may cause these products to become subject to stress-corrosion cracking.
For applications, such as bolting, where stress-corrosion is a possibility, the product should be precipitation heat
treated for not less than 4 hours at the highest temperature compatible with the strength requirements but in no
case lower than 1025 °F (552 °C).
| Market grade | SEL | EN | EN | UNS | AISI |
|---|---|---|---|---|---|
| 17-4 PH | 1.4548 | X5CrNiCu17-4 | EZ6CNU17.04 | S17400 | 630 |
| ASTM | AMS | AMS |
|---|---|---|
| A564 | 5643 | 5622 |
| C | Si | Mn | P | S | Cr | Mo | Ni | Cu | Nb | |
|---|---|---|---|---|---|---|---|---|---|---|
| max. 0.07 | max. 1.00 | max. 1.00 | max. 0.025 | max. 0.015 | 15.00 to 17.50 | max. 0.50 | 3.00 to 5.00 | 3.00 to 5.00 | 5xC to 0.45 |
Information on Long Products ) Presented data refer exclusively to long products. Please observe the detailed explanations at the end of the data sheet (pdf).
