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Technical Data - 905M39 - EN41B
Related Specifications - 905M31, EN41A, Nitralloy,
1.8509, 41Cr, AlMo7, 40CAD6.12
905M39 - EN41B is a 1.5% Chromium Aluminium
Molybdenum Nitriding Steel
Chemical
Analysis |
Element
|
C |
Si |
Mn |
Cr |
Mo |
Al |
Percentage |
0.35 / 0.43 |
0.10 / 0.35 |
0.40 / 0.65 |
1.40 / 1.50 |
0.15 / 0.25 |
0.90/ 1.30 |
Material is usually supplied
in the hardened & tempered condition in which state it
is readily machineable.
After Nitriding, a minimum surface
hardness of 950Vickers (VPN), equivalent to 68 Rockwell is
achieved.
Mechanical
Properties |
Tensile |
Yield |
Elongation |
Impact |
Hardness |
N/mm² |
N/mm² |
% |
Izod J
|
HB |
775 / 925 |
585 min |
15 min |
40 min |
223 / 277 |
Above properties are for
steel hardened and tempered to 50/60 tons tensile (S condition)
Main Uses : Die casting dies, Plungers
and Cylinders, Abrasive Wheels, Plastic Mould Parts, Spindles,
Extrusion Screws and Barrels
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