Martensitic steel

KLEINOX 4543–455 KL – CUSTOM 455 – DIN EN X3CrNiCuTiNb12-9 – AISI XM-16 – ASTM F899

KLEINOX 4543 CUSTOM 455 – DIN EN X3CrNiCuTiNb12-9 AISI XM-16 ASTM F899 trafilati inox, acciai martensitici acciaio trafilato acciaio rettificato acciaio martensitico acciaio temperabile 1.4543 48 HRC X3CrNiCuTiNb12-9 ASTM F899 AISI XM-16 strumenti chirurgici strumenti da taglio aghi chirurgici mandrini custom 455


KLEINOX 4543 (AISI XM-16) is a precipitation hardenable martensitic stainless steel. Its main attribute is its simplicity to use. Its forming is easy and the parts made out of it present a good corrosion resistance, similar to this of 15-17%Cr martensitic stainless steels. Furthermore, its stress corrosion resistance increases with the age hardening intensity. In the age hardened condition it has a high strength coupled with an excellent toughness. Performing a correct heat treatment, it may reach 48 HRc hardness. This steel is well indicated for the production of surgical instruments, cutting tools, surgical needles and spindles.


Diameters: 1.00 – 15.00 mm
Tolerances: ISO h8 (up to h5)
Delivery conditions: in cold drawn or ground bars 3m and Coils


Magnetism: magnetized
Welding: good welding, no preheating avoid ozyacetylene welding
Cold working: it’s recommended utilization at anneal condition (A condition)
Cutting speed: 25-35 m/min
Heat treatment: solubilization: 480 – 540°C; furnace or air cooling
Precipitation hardening: 480 – 540°C. 4h furnace. air cooling.
Resiliency E 20°C: (GPa) 200
Specific weight: (kg/dm³) 7,76
Heat conductivity 20°C: (W/m K) 18,0
Specific Heat 20°C: (kJ/kg K) 0.46
Electrical resistivity: (Ω mm²/m) 0.76

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