Precision iron-nickel alloy 42NHTY

  • Chemical composition
Al Aluminum 0.5 — 1.0
Fe Iron Rest
Si Silicon 0.5 — 0.8
Mn Manganese 0.5 — 0.8
Ni Nickel 41.5 — 43.5
S Sulfur <0.02
Ti Titanium 2.4 — 3.0
C Carbon <0.05
P Phosphorus <0.02
Cr Chromium 5.3 — 5.9
Domestic analogues

N41XT

H41XTA

42NHTUA

Analogs in the USA

902

NI-SPAN C-902

5223 D AMS

5225 D AMS

5221 D AMS

5223 E AMS

5221 AMS

5223 AMS

5225 AMS

NI-SPAN alloy C-902 Special Metals

N09902 UNS

K70640 UNS

for elastic sensitive elements operating at temperatures up to 100 degrees. C Technical requirements — according to GOST 10994−74 The alloy is also included in the following standards: Standard Name GOST 14117−85 Tape made of precision alloys for elastic elements. Technical conditions GOST 14118−85 Precision alloy wire for elastic elements. Technical conditions GOST 14119−85 Bars from precision alloys for elastic elements. Technical conditions

Classification

Country Section Category
CIS, Russia, Ukraine Precision alloys With preset elastic properties

Chemical composition

Standard Fe, % Si, % Mn, % Cr, % Ti, % Ni, % Al, % P, % C, % S, %
GOST 10994-74 44.91–49.3 0.5–0.8 0.5–0.8 5.3–5.9 2.4–3 41.5–43.5 0.5–1 < 0.02 < 0.05 < 0.02

Information on suppliers

Physical characteristics

Temperature, °C $$E\cdot 10^{9}$$, $$MPa$$ $$\alpha\cdot 10^{6}$$, $$K^{-1}$$
20 182 9.5

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ $$\sigma_{P}$$, $$MPa$$ $$\epsilon_L$$, % $$\psi$$, % Treatment
GOST 10994-74 1180–1570
Round 980 635 8 25 Quenching and aging
Wire cold-work, half-load 980
Wire cold-work 1080
Tape cold-work 830

Brinell hardness number

Rolling Standard Classifiers Value, HBW
320–350

Standards

Standard Description
GOST 10994-74

Description of chemical elements

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

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)

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