KCH70-2

for the manufacture of machine parts requiring high strength and plasticity

Country	Section	Category
CIS, Russia, Ukraine	Cast iron	Ductile iron

Standard	Fe, %	Si, %	Mn, %	Cr, %	P, %	C, %	S, %
GOST 1215-79	94.66–96.1	1.2–1.4	0.3–1	< 0.08	< 0.1	2.4–2.7	< 0.06

Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\epsilon_L$ , %	Treatment
Casting	GOST 1215-79				686	2

Rolling	Standard	Classifiers	Value, HBW
	GOST 1215-79		241–285

Standard	Description
GOST 1215-79

Parameter	Units of measurement	Description
$\sigma _{U}$	$MPa$	Ultimate tensile strength
$\epsilon_L$	%	Elongation at break (longitudinal)