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Chronifer M-17C material
is Manufactured in Rod, Bar and coil
AISI 440C ~
Stainless Steel
Material Features
High carbon chromium
steel designed to provide stainless properties with maximum hardness.
After heat treatment type 440C attains the highest hardness of any stainless
steel (about 60 HRC). This stainless steel principally has been used in
bearing assemblies including bearing balls and races. In addition, it
should be considered for cutlery, needle valves, ball check valves, etc.
Availability
Coil: Cold drawn and
polished: 10-35kg/coil
Bars: Ø 0-1.99mm
: Cold drawn and polished
Bars Ø
2.00-16mm: Cold drawn, ground and polished.
Bars Length
in 3m 92m) Surface
roundness N5-N6
Standard Tolerances
Diameter h8 (h7)
Out of roundness/cylindricity:
1/2 of dia tolerance
Tolerance in length :+/-
30mm
Tensile Strength
Before heat treatment:
depending on the diagram 750-950n/mm2
Heat Treatment
Hardening: 1030-1070ºC
Soft Annealing:
843-871ºC slow furnace cooling
Max obtainable hardness
60 HRC
Cutting Rate
15-25 m/min (approximate
value, depending on the lubrication oil, the cutting tools, the shape of parts)
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