03H18N11

Resistant to organic and fruit acids devices and parts in the production of food, soap, oils and artificial fibers. Equipment resistant to 70% nitric, adipic acid, ammonium nitrate up to 300 degrees. OZL-22 electrodes

products working in the nitric acid medium at an elevated temperature; austenitic steel

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	65.615–72.5	< 0.8	< 2	17–19	10.5–12.5	< 0.035	< 0.03	< 0.02

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Mechanical properties at 20 °C

Rolling	Standard	Size, mm	$$\sigma _{U}$$, $$MPa$$	$$\sigma_{P}$$, $$MPa$$	$$\epsilon_L$$, %	$$\psi$$, %	Treatment
Rod	GOST 5949-75	< 60	440	155	40	55	Hardening of 1020-1100 ° C, air cooling
Forgings	GOST 25054-81		441	176	40	45–55
The plates	GOST 7350-77		490	196	40		hardening
Sheet	GOST 5582-75		490	196	40		Hardening of 1050-1080 ° C, cooling water

Brinell hardness number

Rolling	Standard	Classifiers	Value, HBW
Forgings	GOST 25054-81		1790

Analogues

USA	Germany
S30403	1.4306 (X2CrNi19-11)

Standards

Standard	Description
GOST 5632-72
GOST 2690-71
GOST 1133-71
GOST 5582-75
TU 14-1-490-72
TU 14-1-2144-77
TU 14-1-3071-80
TU 14-1-1180-74
TU 14-1-3386-82
TU 14-1-3652-83
TU 14-1-1160-74
TU 14-1-2450-78

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