0H18N5G12AB (NN3B)

for the production of long products, forgings used in the manufacture of parts in shipbuilding and ship repair

Classification

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

Chemical composition

Standard	Fe, %	Si, %	Mn, %	Co, %	Cr, %	Cu, %	Ni, %	V, %	P, %	C, %	S, %	Nb, %	Mo, %	N, %	W, %
Standard	Fe, %	Si, %	Mn, %	Co, %	Cr, %	Cu, %	Ni, %	V, %	P, %	C, %	S, %	Nb, %	Mo, %	N, %	W, %
TU 14-1-784 - 73	57.375–64.55	< 0.8	11.5–13.5	< 0.3	18–19.5	< 0.3	4.5–5.5	0.2–0.35	< 0.045	< 0.08	< 0.03	0.8–1.1	< 0.3	0.45–0.52	< 0.3

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Mechanical properties at 20 °C

Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\sigma_{Y}$ , $MPa$	d5, %	Treatment
Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\sigma_{Y}$ , $MPa$	d5, %	Treatment
Rod	TU 14-1-784 - 73				750	500	25

Analogues

Germany	USA
Germany	USA
Almenit 4301	X5CrNi18-10

Standards

Standard	Description
Standard	Description
TU 14-1-784 - 73

Description of chemical elements

Element	Units of measurement	Description
Element	Units of measurement	Description
Fe	%	Iron
Si	%	Silicon
Mn	%	Manganese
Co	%	Cobalt
Cr	%	Chrome
Cu	%	Copper
Ni	%	Nickel
V	%	Vanadium
P	%	Phosphorus
C	%	Carbon
S	%	Sulfur
Nb	%	Niobium
Mo	%	Molybdenum
N	%	Nitrogen
W	%	Tungsten

Description of mechanical properties

Parameter	Units of measurement	Description
Parameter	Units of measurement	Description
d5	%	Elongation at break
$\sigma_{Y}$	$MPa$	Yield strength
$\sigma _{U}$	$MPa$	Ultimate tensile strength