NH9 alloy (Chromel)

Designation

Name The value
Designation GOST Cyrillic НХ9
Designation GOST Latin HX9
Transliteration NH9
By chemical elements NiCr9
Name The value
Designation GOST Cyrillic Хромель К
Designation GOST Latin Xpomel K
Transliteration Hromel K
By chemical elements Crомель

Description

Alloy NH9 applies: for production of wire intended for the manufacture of countervailing wires.

Standards

Name Code Standards
Non-ferrous metals, including rare, and their alloys В51 GOST 28873-90, GOST 492-2006

Chemical composition

Standard C S P Mn Cr Si Ni Fe Cu As Al Sb Pb Bi Co Mg Ni+Co
GOST 492-2006 ≤0.2 ≤0.01 ≤0.003 ≤0.3 8.5-10 ≤0.4 87.129-91.1 ≤0.3 ≤0.25 ≤0.002 ≤0.15 ≤0.002 ≤0.002 ≤0.002 0.4-1.2 ≤0.05 Rest
Ni is the basis.
According to GOST 492-2006, the total mass fraction of impurities is ≤ 1.40%.

Mechanical properties

Section, mm σU, MPa d HB, MPa
Wire in the delivery state
600-700 34-45 150-200
1100 ≥3 ≥300

Description mechanical marks

Name Description
σU Limit short-term strength
d Elongation after rupture
HB Brinell hardness number