σU
MPa
ψ

1.1172 (Cq35)

Classification

Country	Section	Category
Country	Section	Category
Germany	Non-alloy Special Steels	Structural Pressure Vessel and Engineering Steels with C < 0,5%

Chemical composition

Standard	Fe, %	Si, %	Mn, %	Cu, %	P, %	C, %	S, %
Standard	Fe, %	Si, %	Mn, %	Cu, %	P, %	C, %	S, %
EN 10263-4	98.21–99.18	< 0.3	0.5–0.8	< 0.25	< 0.025	0.32–0.39	< 0.025

Information on suppliers

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Mechanical properties at 20 °C

Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\psi$ , %	Treatment
Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\psi$ , %	Treatment
					540–670	60–62

Analogues

CIS, Russia, Ukraine
CIS, Russia, Ukraine
35

Standards

Standard	Description
Standard	Description
EN 10263-4

Description of chemical elements

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

Description of mechanical properties

Parameter	Units of measurement	Description
Parameter	Units of measurement	Description
$\sigma _{U}$	$MPa$	Ultimate tensile strength
$\psi$	%	Reduction in cross section on fracture