10G2S1

The steel alloyed is silicon-manganic, not prone to temper brittleness. Weldability without restrictions. Flock sensitivity: not sensitive.

Drums of boilers, vessels, working under pressure, and other parts of boilers operating at temperatures up to 450 degrees.

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

Standard	Fe, %	Si, %	Mn, %	Cr, %	Cu, %	Ni, %	As, %	P, %	C, %	S, %	N, %
GOST 19281-89	96.067–97.9	0.8–1.1	1.3–1.65	< 0.3	< 0.3	< 0.3	< 0.08	< 0.035	< 0.12	< 0.04	< 0.008

Rolling	Standard	Size, mm	Tension	Classifiers	$$\sigma _{U}$$, $$MPa$$	$$\sigma_{P}$$, $$MPa$$	$$\epsilon_L$$, %	$$KCU\cdot 10^{3}$$, $$\frac{J}{m^2}$$	Treatment
Sheet	GOST 5520-79				430–490	295–355	21	590–640
Grade	GOST 19281-2014	< 140			480	345	21

Weldability	Flake Susceptibility	Propensity to temper brittleness
no limits	not sensitive	not inclined

Ac₁, K	Ac₃(Ac_m), K	Ar₃(Arc_m), K	Ar₁, K
763–745	920–927	790–820	640–735

Germany	European Union	Bulgaria
1.5130 (10MnSi7)	10MnSi63KE	10G2S1
10MnSi7

Standard	Description
GOST 19281-89

Parameter	Units of measurement	Description
$$\sigma _{U}$$	$$MPa$$	Ultimate tensile strength
$$\sigma_{P}$$	$$MPa$$	Proportionality limit
$$\epsilon_L$$	%	Elongation at break (longitudinal)
$$KCU\cdot 10^{3}$$	$$\frac{J}{m^2}$$	Impact toughness

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