23H2G2TS (23H2G2T)

Weldability without restrictions.

manufacture of valves class A-V (A800), designed for reinforcement of ordinary and prestressed concrete structures

Classification

Country	Section	Category
Country	Section	Category
CIS, Russia, Ukraine	Structural steel	Low alloy structural steel for welded structures

Chemical composition

Standard	Fe, %	Si, %	Mn, %	Cr, %	Cu, %	Ni, %	Zr, %	Al, %	P, %	C, %	S, %
Standard	Fe, %	Si, %	Mn, %	Cr, %	Cu, %	Ni, %	Zr, %	Al, %	P, %	C, %	S, %
GOST 5781-82	94.8–96.595	0.4–0.7	1.4–1.7	1.35–1.7	< 0.3	< 0.3	0.05–0.1	0.015–0.05	< 0.045	0.19–0.26	< 0.045

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Mechanical properties at 20 °C

Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\sigma_{P}$ , $MPa$	$\epsilon_L$ , %	Treatment
Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\sigma_{P}$ , $MPa$	$\epsilon_L$ , %	Treatment
Fittings	GOST 5781-82				1030	785	7

Technological Properties

Weldability
Weldability
no limits

Analogues

Germany
Germany
BSt 420 S

Standards

Standard	Description
Standard	Description
GOST 5781-82

Description of chemical elements

Element	Units of measurement	Description
Element	Units of measurement	Description
Fe	%	Iron
Si	%	Silicon
Mn	%	Manganese
Cr	%	Chrome
Cu	%	Copper
Ni	%	Nickel
Zr	%	Zirconium
Al	%	Aluminium
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
$\sigma_{P}$	$MPa$	Proportionality limit
$\epsilon_L$	%	Elongation at break (longitudinal)

Designation of types of weldability

Parameter	Units of measurement	Description
Parameter	Units of measurement	Description
no limits		Welding is performed without heating and without subsequent heat treatment
Boundedly welded		Welding is possible with heating up to 100–120 °C and subsequent heat treatment
Difficult to weld		For obtaining quality welded joints, additional operations are required: heating up to 200–300 °C for welding, heat treatment after welding — annealing
Not applicable for welded structures