NH9 alloy (Chromel)

Designation

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

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

Standard	C	S	P	Mn	Cr	Si	Ni	Fe	Cu	As	Al	Sb	Pb	Bi	Co	Mg	Ni+Co
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%.

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