CHN15D7

for parts with high corrosion and erosion resistance in alkalis, weak acid solutions, sulfuric acid at any concentration up to 50 degrees C, in sea water, in an environment of superheated water vapor;

Classification

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

Chemical composition

Standard	Fe, %	Si, %	Mn, %	Cr, %	Cu, %	Ni, %	P, %	C, %	S, %
Standard	Fe, %	Si, %	Mn, %	Cr, %	Cu, %	Ni, %	P, %	C, %	S, %
GOST 7769-82	65.3–74.8	2–2.7	0.5–1.6	1.5–3	5–8	14–16	< 0.3	2.2–3	< 0.1

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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				150

Brinell hardness number

Rolling	Standard	Classifiers	Value, HBW
Rolling	Standard	Classifiers	Value, HBW
	GOST 7769-82		120–297

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
Cu	%	Copper
Ni	%	Nickel
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