Steel 4Х5МФ1С

4X5MF1S steel

4X5MF1S steel: steel and alloys classifier. Below is systematized information on the purpose, chemical composition, types of supply, substitutes, critical point temperatures, physical, mechanical, technological and foundry properties for the grade — Steel 4X5MF1S.

General information about 4X5MF1S steel

Delivery type

Sections, including shaped: GOST 5950−73, GOST 2590−71, GOST 2591−71. Calibrated bar GOST 5950−73, GOST 7417−75, GOST 8559−75, GOST 8560−78. Grinded rod and silversilver GOST 5950−73, GOST 14955−77. Strip GOST 4405−75. Forgings and forged blanks GOST 5950−74, GOST 1133−71, GOST 7831−78.

Application

Molds of die casting of zinc, aluminum and magnesium alloys, hammer and press inserts (up to 200−250 mm) for hot deformation of structural steel, tools for upsetting blanks of alloyed structural and heat-resistant materials on the horizontal forging machines.

Chemical composition of steel 4Х5МФ1С

Chemical element	%
Vanadium (V)	0.80−1.10
Silicon (Si)	0.90−1.20
Manganese (Mn)	0.20−0.50
Copper (Cu), not more than	0.30
Molybdenum (Mo)	1.20−1.50
Nickel (Ni), not more than	0.35
Sulfur (S), max.	0.030
Carbon (C)	0.37−0.44
Phosphorus (P), not more than	0.030
Chrome (Cr)	4.50−5.50

Mechanical properties of 4X5MF1S steel

Mechanical properties depending on tempering temperature

t tempering temperature, °C	σ0_{, 2}, MPa	_σB, MPa	_δ5, %	ψ, %	KCU, ^J/m2	_HRCe
Hardening at 1020 °C in oil. Tempering temperature 2 h.
300	1490	1860	9	28	49	52
400			8	24	41	54
500	1490		8	25	20	55
600	1470	1620	10	46	44	50

Mechanical properties depending on test temperature

t test temperature,°C	σ0_{, 2}, MPa	_σB, MPa	_δ5, %	ψ, %	KCU, ^J/m2
1020 °C, Malso. Tempering 580 °C, 2h.
20	1470	1670	10	40	39
200	1340	1620	11	48	54
300	1320	1490	11	46	51
400	1270	1420	11	46	49
500	1170	1320	11	46	41

Technological properties of steel 4Х5МФ1С

Forging temperature

Beginning 1180, the end 850. Slow cooling in the wells.