Plastic Alloy Steel

we are offering plastic alloy steel ,
product name: plastic mould steel---nak80 gb 10ni3mncual
size available:
plate bar: milled：t: 70-320mm w: 90-1000mm
black：t: 50-320mm w: 90-1000mm
length：2m—6m
round bar: turned：dia 90-505mm
black：dia 60-550mm
detailed description
pre-hardened to hrc36-43, heat treatment and deformation could off.
solution treatment and heat treatment to hrc36-43.
applications
used for high precision mirror plastic mould, high appearance home electronic plastic mould, clear lens molds.
extremely critical diamond finish applications, molds requiring special edm finish
technique: ef esr (melting) + forging+ hot rolled +annealed
steel grade: nak80
delivery condition: eaf+lf+vd+(esr),forged, annealed, ut tested, peeled or machined
tolerance: 0+2mm
ut grade: sep1921,group3, class dd
payment item: tt,lc
chemical composition(for reference only):
aisi (h10): c: 0.1-0.2 mn: 1.4-2.0 si: 0.45max al: 0.7-1.3 ni: 2.9-3.4 cu: 0.8-1.2 mo: 0.2-0.5 v: 0.25-0.75 p: ≤0.03 s: ≤0.03
equivalent grades:
gb：10ni3mncual
jis：nak80
heat treatment:
harden: preheat at 840℃- 870℃ cool in air, iol or into salt bath held at 200℃- 500℃ and then air cool.
solid solution : at 850℃ cool in air
aging : at 520℃-540℃ cool in air
shaping: hot forged hot rolled
surface condition: black surface turning milling peeling polishing.
weight(kg): round bar=0.00617*r*r*l
flat bar=0.00785*t*w*l.