1.8505 (32CrAlMo7-10)

Classification

Country	Section	Category
Country	Section	Category
Germany	Structural, Pressure Vessel and Engineering Steels	Nitriding Steels

Chemical composition

Standard	Fe, %	Si, %	Mn, %	Cr, %	Al, %	P, %	C, %	S, %	Mo, %
Standard	Fe, %	Si, %	Mn, %	Cr, %	Al, %	P, %	C, %	S, %	Mo, %
EN 10085	95.09–96.82	< 0.4	0.4–0.7	1.5–1.8	0.8–1.2	< 0.025	0.28–0.35	< 0.035	0.2–0.4

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Mechanical properties at 20 °C

Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\sigma_{0.2}$ , $MPa$	$\epsilon_L$ , %	$KV_{L}$ , $J$	Treatment
Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\sigma_{0.2}$ , $MPa$	$\epsilon_L$ , %	$KV_{L}$ , $J$	Treatment
		16–40		moderate hardening	1030–1230	835	10	25–30
		40–100		moderate hardening	980–1180	835	10
		100–160		moderate hardening	930–1130	735	12
		160–250		moderate hardening	880–1080	675	12

Brinell hardness number

Rolling	Standard	Classifiers	Value, HBW
Rolling	Standard	Classifiers	Value, HBW
		annealing, soft	248

Standards

Standard	Description
Standard	Description
EN 10085

Description of chemical elements

Element	Units of measurement	Description
Element	Units of measurement	Description
Fe	%	Iron
Si	%	Silicon
Mn	%	Manganese
Cr	%	Chrome
Al	%	Aluminium
P	%	Phosphorus
C	%	Carbon
S	%	Sulfur
Mo	%	Molybdenum

Description of mechanical properties

Parameter	Units of measurement	Description
Parameter	Units of measurement	Description
$\sigma_{0.2}$	$MPa$	Tensile stress required to produce a total elongation of 0.2%
$\sigma _{U}$	$MPa$	Ultimate tensile strength
$\epsilon_L$	%	Elongation at break (longitudinal)
$KV_{L}$	$J$	Impact energy (longitudinal)