σU
MPa
ϵL

NKa0.07

cathodes for vacuum devices

Classification

Country	Section	Category
Country	Section	Category
CIS, Russia, Ukraine	Nickel, nickel alloys	Low alloyed nickel alloys

Chemical composition

Standard	Fe, %	Si, %	Mg, %	Ca, %	Mn, %	Cu, %	Zn, %	C, %	Ni + Co, %
Standard	Fe, %	Si, %	Mg, %	Ca, %	Mn, %	Cu, %	Zn, %	C, %	Ni + Co, %
GOST 19241-80	< 0.02	< 0.01	< 0.01	0.05–0.1	< 0.01	< 0.02	< 0.004	< 0.15	< 99.65

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Mechanical properties at 20 °C

Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\epsilon_L$ , %	Treatment
Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\epsilon_L$ , %	Treatment
Tape				annealing	350	20

Brinell hardness number

Rolling	Standard	Classifiers	Value, HBW
Rolling	Standard	Classifiers	Value, HBW
Alloy		soft	0–0

Standards

Standard	Description
Standard	Description
GOST 19241-80

Description of chemical elements

Element	Units of measurement	Description
Element	Units of measurement	Description
Fe	%	Iron
Si	%	Silicon
Mg	%	Magnesium
Ca	%	Calcium
Mn	%	Manganese
Cu	%	Copper
Zn	%	Zinc
C	%	Carbon
Ni + Co	%	Nickel + Cobalt

Description of mechanical properties

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