1.2738 Plastic Mould Steel Plate

Description

1.***8 Plastic Mould Steel
Steel-making Condition: EF, EF/EAF+LF+VD, EF/EAF+ESR
Delivery Condition:
Annealed , Quenched + Tempered
Surface Condition: 
Black, Grinded, Peeled, Rough turned, Polished
Features:
1.Competitive price
2.Immediate delivery
3.Premium quality
4.Reliable service
5.MOQ: 1 Ton
Heat Treatment:
Annealing:
Annealing temperature: **0 ~ **0 °C, holding time is decided by the thickness of the DIN 1.***8 die steel, one hour per *5mm. Colding in furnace after thermal insulation.
Destressing: Heating temperature: **0 °C (annealed condition), **0 °C (quenching and tempering state), holding time is decided by the thickness of the 1.***8 steel, one hour per *0mm. Colding in furnace after thermal insulation.
Quenching and tempering:
Preheating temperature **0 ~ **0 °C, quenching temperature **0 ~ **0 °C, holding *0min (the mold have to quenching in the protective gas to prevent oxidation and decarbonization). Oil cooling, cooling to *0 ~ *0 °C,immediately tempered. Tempering holding time is decided by the thickness of the 1.***8 steel mould, one hour per *5mm, at least 2h. Tempering temperature: **0 °C / **0 °C / **0 °C / **0 °C / **0 °C / **0 °C, the hardness: *2HRC / *1HRC / *8 HRC / *6HRC / *2HRC / *4HRC.
Applications:
Large plastic moulds with deep engravings and intensive impacts on the core. 1.***8 Pre
hardened Plastic Mold Steel is the logical development of 1.***1, a pre-hardened plastic mould steel for use in large moulds, which also have to display high core strength. The additional nickel content of 1 % increases through hardening. 1.***8 is a micro-alloyed, vacuum-degassed steel with the following excellent features: good machinability, outstanding polishability, good texturing properties.
Introduction:
1.***8 Pre-hardened Plastic Mould Steel, hardness in as-delivered condition **0 to **5 HB. Good machinability, suitable for texturing, improved through hardening in comparison to 1.***1, good polishability.