Stainless Steel

Ultra-high-carbon martensitic stainless steel for maximum hardness and edge retention. The highest standard carbon content (0.60-0.75%) among EN 10088 martensitic grades with Mo addition. Achieves 58-60 HRC. Superior wear resistance and edge sharpness. Used for premium razor blades, surgical scalpels, industrial cutting tools, and high-performance knife blades where maximum edge retention is critical.

Semi-austenitic precipitation-hardening stainless steel equivalent to AISI 631 / 17-7PH. Hardens through aluminum-induced precipitation during aging. Can be supplied in various conditions (A, TH1050, CH900, RH950). Combines high strength (up to 1300 MPa) with good corrosion resistance and formability in the annealed condition. Used for aerospace components, flat springs, diaphragms, surgical instruments, and high-performance fasteners.

Heat-resistant austenitic stainless steel with 25% chromium and 21% nickel. Maximum continuous service temperature up to 1050°C in oxidizing atmospheres. Standard material for furnace construction, heat treatment baskets and fixtures, radiant tubes, muffles, and high-temperature chemical processing. Good resistance to sulfur-containing atmospheres. Equivalent to AISI 310S.

THE free-cutting austenitic stainless — AISI 303. Sulfur 0.15-0.35% for short-breaking chips and excellent machinability. Not weldable (hot cracking risk from S). Reduced corrosion resistance vs 304 due to sulfide inclusions. Used for high-volume CNC screw machine production of fittings, shafts, bushings, valves, and any turned stainless part where machining cost dominates.

High-carbon martensitic stainless steel — 0.9% C + 18% Cr. Achieves HRC 58-60 after hardening — among the hardest stainless steels. Better corrosion resistance than 440C (1.4125) due to higher Cr (17-19% vs 16-18%). THE premium European cutlery/surgical instrument stainless. Used for kitchen knives, surgical scalpels, razor blades, ball bearings in corrosive environments, and valve seats.