07H16N6 (EP288, X16H6)

for products operating at atmospheric conditions, acetic acid and other saline environments and for elastic elements.; cryogenic equipment; austenitic steel — martensitic class

Classification

Country	Section	Category
CIS, Russia, Ukraine	Corrosion-resistant alloys and steels	Corrosion-resistant ordinary steel

Chemical composition

Standard	Fe, %	Si, %	Mn, %	Cr, %	Ni, %	P, %	C, %	S, %
GOST 5632-72	72.755–79.45	< 0.8	< 0.8	15.5–17.5	5–8	< 0.035	0.05–0.09	< 0.02

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Mechanical properties at 20 °C

Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\sigma_{P}$ , $MPa$	$\epsilon_L$ , %	$\psi$ , %	$KCU\cdot 10^{3}$ , $\frac{J}{m^2}$	Treatment
Rod	GOST 5949-75				1080	880	12	50	690
Forgings	GOST 25054-81				1176	980	12–13	50	690
The plates	GOST 7350-77				1180	390	15			Normalization of 1030-1050 ° C, air
Sheet	GOST 5582-75				1180		20			Hardening of 1030-1070 ° C, cooling water

Brinell hardness number

Rolling	Standard	Classifiers	Value, HBW
Forgings	GOST 25054-81		341–415

Analogues

USA	Germany
S30100	1.4310 (X10CrNi18-8)

Standards

Standard	Description
GOST 5632-72
TU 14-1-205-75
TU 14-1-1660-76

Description of chemical elements

Element	Units of measurement	Description
Fe	%	Iron
Si	%	Silicon
Mn	%	Manganese
Cr	%	Chrome
Ni	%	Nickel
P	%	Phosphorus
C	%	Carbon
S	%	Sulfur

Description of mechanical properties

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