AS14

Manganese sulphide lead steel.

For the manufacture of steam pipes and steam superheaters of ultra-high pressure installations with a long service life at temperatures up to +700 ° С; shaped profiles of high precision.

Classification

Country	Section	Category
Country	Section	Category
CIS, Russia, Ukraine	Structural steel	Improved machinability structural steel

Chemical composition

Standard	Fe, %	Si, %	Mn, %	Cr, %	Cu, %	Ni, %	Pb, %	P, %	C, %	S, %
Standard	Fe, %	Si, %	Mn, %	Cr, %	Cu, %	Ni, %	Pb, %	P, %	C, %	S, %
GOST 1414-75	96.96–98.6	< 0.12	1–1.3	< 0.25	< 0.25	< 0.25	0.15–0.3	< 0.1	0.1–0.17	0.15–0.3

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Physical characteristics

Temperature, °C	$\rho$ , $\frac{kg}{m^3}$
Temperature, °C	$\rho$ , $\frac{kg}{m^3}$
20	7850

Mechanical properties at 20 °C

Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\sigma_{P}$ , $MPa$	$\psi$ , %	d5, %	Treatment
Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\sigma_{P}$ , $MPa$	$\psi$ , %	d5, %	Treatment
Rental hot rolled.	GOST 1414-75			hot rolling	410		30	20
Rental calibrated. Hardened.	GOST 1414-75			calibrated, cold-work	490	390		10

Brinell hardness number

Rolling	Standard	Classifiers	Value, HBW
Rolling	Standard	Classifiers	Value, HBW
Rental hot rolled.	GOST 1414-75	hot rolling	170
Rental calibrated. Hardened.	GOST 1414-75	calibrated, cold-work	207

Analogues

Germany	USA	European Union
Germany	USA	European Union
9SMnPb28	1213 AISI	11SMnPb28

Standards

Standard	Description
Standard	Description
GOST 1414-75

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
Pb	%	Lead
P	%	Phosphorus
C	%	Carbon
S	%	Sulfur

Description of physical characteristics

Parameter	Units of measurement	Description
Parameter	Units of measurement	Description
$\rho$	$\frac{kg}{m^3}$	The density of the material

Description of mechanical properties

Parameter	Units of measurement	Description
Parameter	Units of measurement	Description
d5	%	Elongation at break
$\sigma _{U}$	$MPa$	Ultimate tensile strength
$\sigma_{P}$	$MPa$	Proportionality limit
$\psi$	%	Reduction in cross section on fracture