Loading Port:China main port
Payment Terms:TT OR LC
Min Order Qty:5 m.t.
Supply Capability:100000 m.t./month
1. 2080
1. cold work mould/die steel
2. High carbon high chromium type ledeburite
3. High hardness wear resistance
Product description
1. Cr12 steel is a widely used cold work die steel, a type of high carbon high chromium ledeburite . The steel has good hardenability and good abrasion resistance
2. Mainly used to with stand the impact load is smaller, and require high abrasion resistance Die and punch, cold-cut scissors, drill sets, gauges, drawing die, pressure die thread rolling board, drawing die thread rolling die.
Chemical composition(for reference only)
Delivery of hardness and quenching hardness
Steel name | Delivery status | Quenched specimens | |||
Hardness HBW | Impressiondiameter (mm) | Quenching temperature/°C | Cooling medium | hardness ≥HRC | |
Cr12 | 269~217 | 3.7~4.1 | 950~1000 | oil | 60 |
Physical properties
Cr12 critical temperature
Critical point | Ac1 | Acm | Ar1 | Arcm | Ms |
temperature(approximation)/°C | 810 | 835 | 755 | 770 | 180 |
Cr12 Hot Working Technology
Item | Heating temperature/°C | start forging temperature/°C | final forging temperature/°C | type of cooling |
Steel ingot | 1140~1160 | 1100~1120 | 900~920 | Slow cooling |
Steel billet | 1120~1140 | 1080~1100 | 880~920 | Slow cooling |
Cr12 heat treatment
between the quenching temperature and the hardness of the relationship
quenching temperature/°C | 875 | 900 | 925 | 950 | 975 | 1000 | 1050 | 1100 |
Hardness HRC | 54.5 | 57 | 60 | 62.5 | 65 | 66 | 64 | 59.5 |
Delivery status: steel delivered in the annealed condition
We are professional manufacture of tool steel. We can provide various kinds of tool steel and mould steel. If you have any question regarding our products ,please feel free to let us know. We assure you will receive our best attention to your enquiry.
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