JIS SUS440A ( 18 Cr - 0.7 C ) grade high carbon stainless steel plates ( sheets )
This high-carbon high-chromium martensitic stainless steel is designed to provide stainless properties with excellent hardness.
It has moderate corrosion resistance as-annealed which has permitted its use in mild environments.
In some respects it behaves similarly to tool steels.
Type 440A attains a hardness of Rockwell C 56 and maximum toughness when heat treated.
Type 440A has been used for pivot pins, dental and surgical instruments, cutlery, valve parts, etc.
Chemical composition ( in weight % )
high- end kicthen knives, surgical instruments, beauty instruments like barber scissors etc.
Stainless steel plates 440A / forged, cold rolled, annealed, bright surface, 2.5*250*2000mm
Delivery state: annealed, HB 232
T.S. Mpa 695
EL. δ 5% 16.8
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