Grade 40CrMoV4-6 / 1.7711

This European Standard specifies requirements for semi-finished products, bars and rods for fasteners with properties specified at elevated and/or low temperatures made of non-alloy and alloy (including stainless) steels and nickel alloys as given in Table 1. The requirements of this standard may be applied also to the finished fasteners. The general technical delivery conditions in EN 10021 also apply to products supplied in accordance with this European Standard.

Chemical Composition

Material designation		Chemical composition, % by mass
Element	Number	C	Si	Mn	P max.	S max.	Altot	B	Cr	Mo	Ni	V	Others
40CrMoV4-6	1.7711	0,36 to 0,44	≤ 0,40	0,45 to 0,85	0,025	0,030	≤ 0,015	‒	0,90 to 1,20	0,50 to 0,65	‒	0,25 to 0,35	‒

Mechanical Properties

Material designation		Heat treatment condition a	Diameter c (d mm)	Proof strength (Rp0,2 MPa min.)	Tensile strength (Rm MPa)	Elongation after fracture (A % min)	Reduction in area (Z % min)	Impact energy (ISO-V) at 20 °C (KV2 J min)
Name	Number
40CrMoV4-6	1.7711	+QT	d ≤ 100	700	850 to 1 000	14	45	40
			100 < d ≤ 160	640	850 to 1 000	14	45	40