Alloy Nmcak2-2-1 (Alumel)
Designation
| Name |
The value |
| Designation GOST Cyrillic |
НМцАК2-2-1 |
| Designation GOST Latin |
HMtsAK2-2-1 |
| Transliteration |
NMtsAK2-2-1 |
| The chemical elements |
NiMnAlCo2-2-1 |
| Name |
The value |
| Designation GOST Cyrillic |
Алюмель |
| Designation GOST Latin |
Aljumel |
| Transliteration |
Alyumel |
| The chemical elements |
- |
Description
Alloy Nmcak2−2-1 applies: for the production of semi-finished products (rods and wire), intended for the manufacture of thermocouples.
Standards
| Name |
Code |
Standards |
| Non-ferrous metals, including rare metals, and their alloys |
В51 |
GOST 28873-90, GOST 492-2006 |
| Wire of non-ferrous metals and their alloys |
В74 |
TU 48-21-172-72, TU 48-21-686-80, TU 48-21-877-89 |
| Bars |
В55 |
TU 48-21-63-72 |
Chemical composition
| Standard |
C |
S |
P |
Mn |
Si |
Ni |
Fe |
Cu |
As |
Al |
Sb |
Pb |
Bi |
Co |
Mg |
Ni+Co |
| GOST 492-2006 |
≤0.1 |
≤0.01 |
≤0.005 |
1.8-2.7 |
0.85-1.5 |
91.477-95.15 |
≤0.3 |
≤0.25 |
≤0.002 |
1.6-2.4 |
≤0.002 |
≤0.002 |
≤0.002 |
0.6-1.2 |
≤0.05 |
The rest |
Ni is the basis.
According to GOST 492-2006, the total mass fraction of impurities is ≤ 0.70%.
Mechanical characteristics
| Section, mm |
σB, MPa |
d5, % |
Brinell hardness number, MPa |
| Bars in the state of delivery |
|
500-600 |
- |
≥130 |
|
1000-1100 |
≥3.5 |
250-300 |
Description mechanical marks
| Name |
Description |
| Section |
Section |
| σB |
Limit short-term strength |
| d5 |
Elongation after rupture |
Physical characteristics
| Temperature |
Е, ГПа |
r, кг/м3 |
R, НОм · м |
| 20 |
182 |
8500 |
320 |
A description of the physical symbols
| Name |
Description |
| Е |
The normal elasticity modulus |
| l |
Coefficient of thermal conductivity |
| R |
UD. the resistivity |
