MNTS15-20 (Nickel silver)

spring relays, parts for electrical engineering, components, produced by deep drawing utensils; Alloy well deformed in cold, corrosion resistant, good spring properties.

Classification

Country Section Category
CIS, Russia, Ukraine Copper, copper alloys Copper-Nickel Alloys

Chemical composition

Standard Fe, % Si, % Mg, % Bi, % Mn, % Cu, % Zn, % Sb, % Pb, % As, % P, % C, % S, % Ni + Co, %
GOST 492-2006 < 0.3 < 0.15 < 0.05 < 0.002 < 0.3 60.6–68.5 18–22 < 0.002 < 0.02 < 0.01 < 0.005 < 0.03 < 0.01 13.5–16.5

Information on suppliers

Physical characteristics

Temperature, °C $$E\cdot 10^{9}$$, $$MPa$$ $$\alpha\cdot 10^{6}$$, $$K^{-1}$$ $$\rho$$, $$\frac{kg}{m^3}$$ $$c\cdot 10^{-3}$$, $$\frac{J}{kg\cdot K}$$ $$R\cdot 10^{-6}$$, $$\Omega\cdot m$$
20 135 8600 0.398 0.26
100 16.6

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ d5, % Treatment
The wire is soft. GOST 5220-78 343 15–30
Wire is hard. GOST 5220-78 686–1078
Tape softly. GOST 5187-2003 340 27–30
The tape is hard. GOST 5187-2003 540–690 2
The band is soft. GOST 5063-73 340 35
The strip is hard. GOST 5063-73 540 1

Brinell hardness number

Rolling Standard Classifiers Value, HBW
The alloy is soft 690
The alloy is soft 1570–1710

Casting and technological parameters

melting point, °C Hot working temperature, °C annealing temperature, °C
1080 800–970 700–750

Analogues

USA
Nickel silver 65-15

Standards

Standard Description
GOST 492-2006
GOST 492-1973
GOST 5063-73
GOST 5063-16
GOST 5220-18
DSTU GOST 492:2007

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Si % Silicon
Mg % Magnesium
Bi % Bismuth
Mn % Manganese
Cu % Copper
Zn % Zinc
Sb % Antimony
Pb % Lead
As % Arsenic
P % Phosphorus
C % Carbon
S % Sulfur
Ni + Co % Nickel + Cobalt

Description of physical characteristics

Parameter Units of measurement Description
$$E\cdot 10^{9}$$ $$MPa$$ Elastic modulus
$$\alpha\cdot 10^{6}$$ $$K^{-1}$$ Coefficient of thermal (linear) expansion (range 20°C–T)
$$\rho$$ $$\frac{kg}{m^3}$$ The density of the material
$$c\cdot 10^{-3}$$ $$\frac{J}{kg\cdot K}$$ The specific heat of the material (range 20°C–T)
$$R\cdot 10^{-6}$$ $$\Omega\cdot m$$ Electrical resistivity

Description of mechanical properties

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

Description of the casting and technological parameters

Parameter Units of measurement Description
melting point °C The temperature at which solid crystalline body makes the transition to the liquid state and Vice versa
Hot working temperature °C The temperature at which the plastic-deformed metal recrystallizes during the pressure treatment
annealing temperature °C The temperature at which the processes return recrystallization and homogenization of the metal to reduce its hardness for subsequent machining