4crmnsimov

4CrMnSiMoV 4CrMnSiMoV steel in the last 20 years, large sections of China's low-alloy steel hot work die steels one of the developments in the field. The steel has high resistance to tempering performance, good high temperature strength, thermal fatigue properties and toughness, and good hardenability, cold, hot processing performance. The steel model suitable for manufacturing various types of hammer and press forging die.

4CrMnSiMoV the chemical composition of steel　　

C Si Mn P S Cr Mo V

0.35~0.45 0.80~1.10 0.80~1.10 ≤0.030 ≤0.030 1.30~1.50 0.40~0.60 0.20~0.40

4CrMnSiMoV physical properties of steel　　

Critical point Ac1 Ac3 Ar1 Ar3 Ms Mf Bs Bf

Temperature (approximate) / ℃ 792 855 660 770 330 165 420 350

Code 4CrMnSiMoV thermal processing of steel　　

Item	Heating temperature / ℃	On forging temperature / ℃	Final forging temperature / ℃	Cooling
Steel ingot Steel billet	1160～1180 1100～1150	1100～1150 1050～1100	≥850 ≥850	Slow cooling (sand pit or cold) Slow cooling (sand pit or cold)

C	Si	Mn	P	S	Cr	Mo	V
0.35~0.45	0.80~1.10	0.80~1.10	≤0.030	≤0.030	1.30~1.50	0.40~0.60	0.20~0.40

Critical point	Ac1	Ac3	Ar1	Ar3	Ms	Mf	Bs	Bf
Temperature (approximate) / ℃	792	855	660	770	330	165	420	350

4CrMnSiMoV the chemical composition of steel C Si Mn P S Cr Mo V 0.35~0.45 0.80~1.10 0.80~1.10 ≤0.030 ≤0.030 1.30~1.50 0.40~0.60 0.20~0.40

4CrMnSiMoV physical properties of steel Critical point Ac1 Ac3 Ar1 Ar3 Ms Mf Bs Bf Temperature (approximate) / ℃ 792 855 660 770 330 165 420 350

4CrMnSiMoV the chemical composition of steel　　

C Si Mn P S Cr Mo V

0.35~0.45 0.80~1.10 0.80~1.10 ≤0.030 ≤0.030 1.30~1.50 0.40~0.60 0.20~0.40

4CrMnSiMoV physical properties of steel　　

Critical point Ac1 Ac3 Ar1 Ar3 Ms Mf Bs Bf

Temperature (approximate) / ℃ 792 855 660 770 330 165 420 350