BÖHLER T670

BÖHLER T670 is a corrosion-resistant steel in the form of bars, wire, forgings up to 12.0 inches (305 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-molybdenum steel possessing high strength and toughness.

Primarily for parts requiring corrosion resistance approximating that of Cr-Ni 18-8 type steels and high strength exceeding that of 12% Cr martensitic type steels, but usage is not limited to such applications. This steel can be used in the solution heat treated condition and is capable of being precipitation heat treated to tensile strengths as high as 157 ksi (1080 MPa) with good ductility and strength in the transverse directions in large section sizes.

Certain processing procedures and service conditions may cause these products to become subject to stress-corrosion cracking.