CHYUHSH

for parts with heat resistance in air up to 700 degrees C, resistant to abrasion.

Classification

Country	Section	Category
Country	Section	Category
CIS, Russia, Ukraine	Cast iron	Low alloy cast iron

Chemical composition

Standard	Fe, %	Si, %	Mn, %	Cr, %	Al, %	P, %	C, %	S, %
Standard	Fe, %	Si, %	Mn, %	Cr, %	Al, %	P, %	C, %	S, %
GOST 7769-82	90.07–94	2–3	< 0.5	0.4–1	0.6–1.5	< 0.1	3–3.8	< 0.03

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Mechanical properties at 20 °C

Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	Treatment
Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	Treatment
Casting	GOST 7769-82				390

Brinell hardness number

Rolling	Standard	Classifiers	Value, HBW
Rolling	Standard	Classifiers	Value, HBW
	GOST 7769-82		187–364

Standards

Standard	Description
Standard	Description
GOST 7769-82

Description of chemical elements

Element	Units of measurement	Description
Element	Units of measurement	Description
Fe	%	Iron
Si	%	Silicon
Mn	%	Manganese
Cr	%	Chrome
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