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Plastic mould steel-NAK80

Equivalent grades GB DIN JIS DAIDO
10Ni3MnCuAl --- --- NAK80
Chemical Composition C Si Mn P S  Mo  Cu  Al  Ni
0.15 0.3 1.5 0.02MAX 0.02MAX  0.30  1.00  1.00  3.0
Available size Round Bar Diameter                          Length
60-800mm 2000-6000mm
Flat Bar Thickness Width Length
25-400mm 200-800mm 2000-6000mm
Surface condition Black surface/ Grinded/ Machined
Annealed hardness after Q+T, hardness 38-42HRC
Characteristics super clean, ESR manufacturing process                                                                                                                                     age-hardened for uniformity of hardness throughout, even in heavy section
when welded, leaves no witness lines after re-aging
uniform grain structure with no pin holes, inclusions or hard spots
machines up to 20% faster than 30HRC P20 mold steels
never needs stress relieving, even after heavy maching
super polishability, even over welded areas
Applications clear lens molds
extremely critical diamond finish applications
molds requiring special EDM finish
Mechanical properties   Temperature(°C)
100 200 300
Tensile strength (ksi) - 145 143
cross-sectional reduction ratio (%) - 38.5 40.1
Elongation - 15.9 16
Impact value 1.8 3.6 3.5
Hardness (HV) 395 375 360

Plastic mould steel-NAK80
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