1.0725 (15SMn13)

Classification

Country	Section	Category
Country	Section	Category
Germany	Non-alloy Steels	Steels with Higher P or S Content

Chemical composition

Standard	Fe, %	Si, %	Mn, %	P, %	C, %	S, %
Standard	Fe, %	Si, %	Mn, %	P, %	C, %	S, %
	97.88–98.9	< 0.4	0.9–1.3	< 0.06	0.12–0.18	0.08–0.18

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Mechanical properties at 20 °C

Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\sigma_{0.2}$ , $MPa$	$\epsilon_L$ , %	Treatment
Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\sigma_{0.2}$ , $MPa$	$\epsilon_L$ , %	Treatment
		5–10		solid, cold drawn	560–840	450	6
		10–16		solid, cold drawn	500–800	430	7
		16–40		solid, cold drawn	470–770	390	8
		40–63		solid, cold drawn	460–680	350	9
		63–100		solid, cold drawn	440–650	265	10

Brinell hardness number

Rolling	Standard	Classifiers	Value, HBW
Rolling	Standard	Classifiers	Value, HBW
		rolling, turning	125–178
			128–172

Standards

Standard	Description
Standard	Description
EN 10087
EN 10277-3

Description of chemical elements

Element	Units of measurement	Description
Element	Units of measurement	Description
Fe	%	Iron
Si	%	Silicon
Mn	%	Manganese
P	%	Phosphorus
C	%	Carbon
S	%	Sulfur

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)