1.6349 (X7NiMo6)

Classification

Country	Section	Category
Country	Section	Category
Germany	Structural, Pressure Vessel and Engineering Steels	Ni-Mo, Ni-Mo-Mn, Ni-Mo-Cu, Ni-Mo-V, Ni-Mn-V

Chemical composition

Standard	Fe, %	Si, %	Mn, %	Ni, %	V, %	P, %	C, %	S, %	Mo, %
Standard	Fe, %	Si, %	Mn, %	Ni, %	V, %	P, %	C, %	S, %	Mo, %
EN 10028-4	91.705–94.2	< 0.35	0.6–1.4	5–6	< 0.05	< 0.025	< 0.1	< 0.02	0.2–0.35

Information on suppliers

Wish to advertise here?

Mechanical properties at 20 °C

Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\sigma_{Y}$ , $MPa$	$\epsilon_L$ , %	$KU$ , $J$	Treatment
Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\sigma_{Y}$ , $MPa$	$\epsilon_L$ , %	$KU$ , $J$	Treatment
		< 50			640–830	> 490	< 18	> 70	After quenching and tempering or tempering

Standards

Standard	Description
Standard	Description
EN 10028-4

Description of chemical elements

Element	Units of measurement	Description
Element	Units of measurement	Description
Fe	%	Iron
Si	%	Silicon
Mn	%	Manganese
Ni	%	Nickel
V	%	Vanadium
P	%	Phosphorus
C	%	Carbon
S	%	Sulfur
Mo	%	Molybdenum

Description of mechanical properties

Parameter	Units of measurement	Description
Parameter	Units of measurement	Description
$\sigma_{Y}$	$MPa$	Yield strength
$\sigma _{U}$	$MPa$	Ultimate tensile strength
$\epsilon_L$	%	Elongation at break (longitudinal)
$KU$	$J$	Impact energy