Specifications
1. Cr12 is a kind of high-carbon high-chromium steel type ledeburite.
2. It has good hardenability and wear resistance
Chemical composition
|
Standard
|
Element
|
C
|
Mn
|
Si
|
Cr
|
P
|
S
|
|
GB/T
1299-2000
|
%
|
2.00/2.30
|
≤0.40
|
≤0.40
|
11.50/13.00
|
≤0.030
|
≤0.030
|
Feature
1. D3 is a kind of high-carbon,high-chromium steel type ledeburite.
2. It has good hardenability and wear resistance.
Application
D3/Cr12 is a kind of steel with excellent wear-resisting performance. Mainly used in long-life punching die, blanking die, drawing die, press rolling die etc. It is also used for making various scissors, crushing cutters.
Heat Treatment condition
Quench: 950-980°c oil cooling HRC≥60
Backfire: relieving stress, stable structure 180-200°c two hours HRC60-62;relieving stress, lower hardenss 320-350°c two hours HRC57-58
Anneal: 830-850°c slow cooling