4Х5МФС - GOST 5950-2000

Grade	4Х5МФС
Corresponding Standard	GOST 5950-2000 Tool Alloy Steel Bars, Strips and Coils. General Specifications
Classification	Tool Steel

4Х5МФС Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	V
Minimum Value	0.32	0.9	0.2	-	-	4.5	-	-	1.2	0.3
Maximum Value	0.4	1.2	0.5	0.03	0.03	5.5	0.4	0.3	1.5	0.5

② It is allowed to replace molybdenum partially with tungsten in molybdenum steels: one fraction of the total mass of molybdenum is equivalent to two fractions of the total mass of tungsten.
The quantity of the replaced molybdenum shall be no more than 0.1 % in steels with the fraction of the total mass of molybdenum not exceeding 1.2 % inclusive. It shall be no more than 0.2 % in steels with the fraction of the total mass of milybdenum exceeding 1.2 %.
The sum fraction of the total mass of tungsten, counted to molybdenum, and molybdenum itself shall not exceed the specified fraction of the total mass of molybdenum.

4Х5МФС Mechanical Properties

product	Heat Treatment or Condition	Hardness HBW
Steel	Delivery Condition + Cold Processing	Indentation Diameter ≥ 3.9mm ≤241
Steel	Quenching 1010~1030°C oil cooling, Tempering 550±10°C	HRC≥47

Approximate Comparison Table Alloy Tool Steel 2

China	Japan	United States	Germany		France	Russia	United Kingdom
GB	JIS	ASTM	DIN EN/DIN	W-Nr.	NF EN/NF	GOST	BS EN/BS
4Cr5MoSiV	SK D6	H11	X38CrMoV5 1	1.2343	Z38CDV5	4Х5МФС	BH11

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!