20YUA

Production of sheet metal thickness from 4 to 14 mm, intended for cold forming

Classification

Country	Section	Category
Country	Section	Category
CIS, Russia, Ukraine	Structural steel	Carbonaceous quality structural steel

Chemical composition

Standard	Si, %	Mn, %	Cr, %	Cu, %	Ni, %	Al, %	P, %	C, %	S, %
Standard	Si, %	Mn, %	Cr, %	Cu, %	Ni, %	Al, %	P, %	C, %	S, %
GOST 4041-71	< 0.07	0.25–0.45	< 0.1	< 0.2	< 0.15	0.02–0.08	< 0.02	0.16–0.22	< 0.025

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Mechanical properties at 20 °C

Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	d5, %	Treatment
Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	d5, %	Treatment
Sheet termoobrabotki.	GOST 4041-71	4–14			340–490	28

Brinell hardness number

Rolling	Standard	Classifiers	Value, HBW
Rolling	Standard	Classifiers	Value, HBW
Sheet termoobrabotki.	GOST 4041-71		127

Standards

Standard	Description
Standard	Description
GOST 4041-71

Description of chemical elements

Element	Units of measurement	Description
Element	Units of measurement	Description
Si	%	Silicon
Mn	%	Manganese
Cr	%	Chrome
Cu	%	Copper
Ni	%	Nickel
Al	%	Aluminium
P	%	Phosphorus
C	%	Carbon
S	%	Sulfur

Description of mechanical properties

Parameter	Units of measurement	Description
Parameter	Units of measurement	Description
d5	%	Elongation at break
$\sigma _{U}$	$MPa$	Ultimate tensile strength