1. Grade: AISI:D3 ,DIN:1.2080, JIS:SKD1,GB: Cr12

 

2. Process: EAF+LF+VD+ Forged+ Heat Treatment (Annealed,A Normalized, Q+T)

 

3. Technique: Hot Rolled

 

1. Cr12 round tool steel

 

2.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

 

3.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.

 

4.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

 

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 Steel billet	1140~1160 1120~1140	1100~1120 1080~1100	900~920 880~920	Slow cooling Slow cooling

 

 

 

4Chemical Composition (%):

 

 

 

C	Si	Mn	Cr	Ni	Cu
			Equal or less than
2.00~2.30	≤0.40,	≤0.40,	11.50~13.00	0.30	0.30

 

 

 

 

1.2080 din

 

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