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Shandong Anniu Group |
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Description:
Cr12 mold steel alloy tool steel for a typical domestic implementation of the standards GB/T 1299-1985
chemical composition:
C | Si | Mn | S | P | Cr | Ni | Cu | Co |
2.00~2.30 | ≤0.40 | ≤0.40 | ≤0.030 | ≤0.030 | 11.50~13.00 | ≤0.25 | ≤0.30 | ≤1.00 |
mechanical properties:
Hardness: annealing , 269 ~ 217HB, indentation diameter 3.7 ~
4.1mm; quenching , ≥ 60HRC
Heat treatment:
high temperature quenching 1100-1150℃, low temperature quenching 960 ~ 1050 ℃
first tempering 180~200 ℃, 2 hours, air cooling
second tempering 320~350 ℃, 2 hours, air cooling
Microstructure: tempered martensite and retained austenite
undissolved carbides .
Delivery condition: annealed
Application:
Cr12 is widely used cold work die steel , high strength , good
hardenability and good wear resistance, but poor toughness . Mainly
used for small to withstand impact loads requiring high wear Die
and punch , cold cut scissors, drill sets , gauge, wire drawing
dies , pressure die , thread rolling plate , drawing die and thread
rolling die.
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