1.7386 (X11CrMo9-1)

Classification

Country	Section	Category
Germany	Structural, Pressure Vessel and Engineering Steels	Cr-Mo with Mo ≥ 0.35%

Chemical composition

Standard	Fe, %	Si, %	Mn, %	Cr, %	Cu, %	Al, %	P, %	C, %	S, %	Mo, %
EN 10216-2	86.765–90.47	0.25–1	0.3–0.6	8–10	< 0.3	< 0.04	< 0.025	0.08–0.15	< 0.02	0.9–1.1

Information on suppliers

Wish to advertise here?

Physical characteristics

Temperature, °C	$E\cdot 10^{9}$ , $MPa$	$\alpha\cdot 10^{6}$ , $K^{-1}$
100		11.1
200	206	12.1
300	181	12.9
400	172	13.5
500	162	13.9
600	152	14.1

Mechanical properties at 20 °C

Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\sigma_{0.2}$ , $MPa$	$\epsilon_L$ , %	$KV_{L}$ , $J$	$KV_{T}$ , $J$	Treatment
				isothermal annealing	460–640	210	20
				Hardening, normalization	590–740	390	18
								40	27

Standards

Standard	Description
EN 10216-2

Description of chemical elements

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

Description of physical characteristics

Parameter	Units of measurement	Description
$E\cdot 10^{9}$	$MPa$	Elastic modulus
$\alpha\cdot 10^{6}$	$K^{-1}$	Coefficient of thermal (linear) expansion (range 20°C–T)

Description of mechanical properties

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)
$KV_{T}$	$J$	Impact energy (transverse)