1.2080 Mould steel

1.2080 Mould steel 1.cold work mould/die steel 2.High carbon high chromium type ledeburite 3.High hardness wear resistance

1.2080 Mould steel

 

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.

 

3.Chemical composition(for reference only):

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

 

4.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

 

5.Physical properties

Cr12 critical temperature

Critical point	Ac1	Acm	Ar1	Arcm	Ms
temperature(approximation)/°C	810	835	755	770	180

 

6.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

 

7.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

 

8.Delivery status: steel delivered in the annealed condition

1.2080 Mould steel