Corrosion Resistant Steels - Martensitic Precipitation Hardening (PH) Steels

BÖHLER N700 is a high-quality corrosion-resistant steel in aerospace quality, in the form of bars, wire and forgings with a diameter/thickness of up to 203 mm in the solution-annealed condition, as well as starting material of any size for forging purposes. It is a martensitic, precipitation-hardenable chromium-nickel-copper steel with high strength and toughness. Further increases in strength can be achieved by cold forming and subsequent precipitation hardening. These products are typically used for parts requiring corrosion resistance and high strength up to 316°C. However, their use is not limited to such applications. However, use is not limited to such applications. Certain processing methods and operating conditions can cause these products to become susceptible to stress corrosion cracking. For applications such as bolting where stress corrosion cracking is possible, the product should be aged for a minimum of 4 hours at the highest temperature compatible with the strength requirements, but in no case lower than 552°C.

BÖHLER N700 SA is a premium aerospace-quality corrosion-resistant steel available in bars, wire, and forgings with diameters/thicknesses up to 203 mm in the solution-annealed condition, as well as starting material of any size for forging purposes. It is a martensitic, precipitation-hardenable chromium-nickel-copper steel with high strength and toughness. Further strength increases can be achieved through cold working and subsequent precipitation hardening. These products are typically used for parts requiring corrosion resistance and high strength up to 316 °C, but their use is not limited to such applications. Certain processing methods and operating conditions can make these products susceptible to stress corrosion cracking. For applications such as bolted joints where stress corrosion is possible, the product should be aged for at least 4 hours at the highest temperature compatible with the strength requirements, but in no case lower than 552 °C.

Sheets and Plates for the production of etched Pressplates for the production of decorative laminates (furniture industry, flooring)

BÖHLER N701 is a high quality, vacuum remelted, corrosion resistant steel for aerospace applications in the form of bars for machining up to 200 mm in diameter. It is a martensitic, precipitation hardenable chromium-nickel-copper steel with high strength and toughness. These products are typically used for parts that require corrosion resistance, high strength up to 600 °F, and exhibit good toughness & strength in the transverse direction of large dimensions. However, use is not limited to such applications. Certain processing methods and operating conditions can cause these products to become susceptible to Stress corrosion cracking.

BÖHLER N701 AMS is a premium, aerospace-quality corrosion-resistant steel available in bars, wire, and forgings with diameters/thicknesses up to 203 mm in the solution-annealed condition, as well as pre-forging stock of any size. It is a martensitic, precipitation-hardenable chromium-nickel-copper steel with high strength and toughness. Further strength increases can be achieved through cold working and subsequent precipitation hardening. These products are typically used for parts requiring corrosion resistance and high strength up to 316 °C and must exhibit good transverse toughness and strength in large dimensions. However, their use is not limited to such applications. Certain processing methods and operating conditions can make these products susceptible to stress corrosion cracking.

Pressplates for the production of decorative and technical laminates (electronic industry) Carrier Plates for the production of decorative and technical laminates

BÖHLER N709 is a premium aircraft-quality 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 as well as stock of any size for forging. It is a martensitic precipitation hardenable chromium-nickel-molydenum-aluminium steel possessing high strength and toughness. These products have been used typically for parts requiring corrosion resistance, stress-corrosion resistance and high strength up to 600 °F (316 °C) with good ductility and strength in the transverse direction in large section sizes but,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.

Aviation and aerospace industries. Creep resisting martensitic Cr-Ni-Mo-Cu-steel, corrosion resistant with high strength and good toughness.

BÖHLER N713 is an ESR-remelted corrosion-resistant steel available in bar, wire, and forgings. It is a martensitic, precipitation-hardenable (PH-type) chromium-nickel-copper-titanium-niobium steel with high strength and toughness. The steel can be precipitation-hardened in a single-stage aging treatment to a minimum tensile strength of 225 KSI (1551 MPa) with good ductility and toughness. These products are typically used for parts requiring corrosion resistance, stress corrosion resistance, and high strength up to 427 °C (800 °F) with good transverse ductility and transverse strength at large cross-sectional dimensions. The steel is typically used for medical instruments and engineering components, but is not limited to these applications. Certain processing methods and operating conditions can cause stress corrosion cracking to occur in these products.

BÖHLER N717 is a premium quality, corrosion-resistant steel for aerospace applications, supplied in the form of bars, wire, forgings in the solution-annealed condition, and pre-material of any size for forging. It is a martensitic, precipitation-hardenable chromium-nickel-molybdenum-aluminum steel with high strength and toughness. This steel is typically used for components requiring corrosion resistance and a combination of high strength and toughness up to 427 °C, although its use is not limited to such applications. Certain processing methods and service conditions may lead to stress corrosion cracking in these products.

Provides valuable property combinations particularly well suited for aerospace applications.

Components for the aircraft industry and valve plates for compressors.

BÖHLER N765 (UNS S46500) is a double vacuum-melted, stainless, maraging steel (PH-Grade) with a unique combination of high strength, toughness and corrosion resistance. The products are typically used for heat-treated parts where resistance to stress corrosion cracking, high strength and toughness up to 427 °C (800 °F) with good ductility and transverse strength are required. BÖHLER N765 material achieves a tensile strength of over 250 ksi (1722 MPa) when aged at 950 °F (H950 condition) and offers a superior combination of strength, toughness and stress corrosion cracking resistance compared to other high strength PH-steels such as 15-5PH or PH 13-8Mo. Hardening temperatures from 950°F to 1050°F can be selected to achieve the desired combination of strength, toughness and stress corrosion cracking resistance. The alloy not only meets the special and demanding requirements of the aerospace industry, but is also used in marine equipment, firearms, hand tools, oil and gas drilling and the medical industry, among others.