Aerospace turbine and engine parts require high‑strength steels and nickel alloys with excellent fatigue, creep, and temperature resistance. Key quality features include certified materials, controlled heat treatment, non‑destructive testing, and full traceability to aerospace standards.
Turbine and engine parts in aerospace applications operate under extreme conditions, including high temperatures, high rotational speeds, severe mechanical loads, and aggressive environments. Material requirements are therefore exceptionally demanding, with a strong focus on high‑temperature strength, creep resistance, fatigue performance, oxidation resistance, and long‑term dimensional stability. Materials must maintain mechanical integrity over extended service life while meeting strict safety and certification standards.
Key materials include high‑alloy steels for shafts, disks, and structural engine components, as well as nickel‑based superalloys for hot‑section parts exposed to elevated temperatures. Martensitic and precipitation‑hardened steels are used where high strength and wear resistance are required. Material purity, controlled grain structure, and precise chemical composition are essential to prevent fatigue and creep failures. Quality features include vacuum‑melted materials, fully certified supply chains, validated heat‑treatment processes, and tight process control. Comprehensive non‑destructive testing, dimensional inspection, and full traceability ensure compliance with aerospace standards and guarantee safe, reliable engine operation.
BÖHLER V358 in the British Standard Aerospace Series is a 3% Cr-Mo-V nitriding steel offering a tensile strength of 1,320-1,470 MPa, combined with excellent hardenability for high core strength and develops a hard wear resistant case after surface treatment. The alloy is produced by vacuum arc remelting. (VAR) Typical applications are gear shafts and crankshafts with maximum diameter of 70mm for the aircraft industry and automtovie components.
Read MoreBÖHLER V361 is a 3% Cr-Mo-V nitriding low-alloy steel of premium aircraft-quality, low-alloy steel offering a tensile strength of up to over 1350MPa in the form of bars, forgings, and forging stock. Due to the optimized production route via VIM-melting and VAR-remelting, the steel offers high impact strength and fatigue limit. It may be nitrided in the heat treated condition to obtain a wear resistant surface. It is used typically for nitrided parts such as bearings, operating under heavy loads and high speeds at moderate temperatures, and requiring highest surface hardness, high core toughness, and less distortion than parts made from case hardening steel, but usage is not limited to such applications.
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