Alloy MNC18-20

Designation

Name The value
Designation GOST Cyrillic МНЦ18-20
Designation GOST Latin MHTs18-20
Transliteration MNTs18-20
By chemical elements CuNiZn18-20

Description

Alloy MNC18−20 used: for the manufacture of semi-finished products (sheets, strips, ribbons, rods, tubes and wire); relay springs; parts, get a deep hood; Cutlery; art products.

Note

According to GOST 28873−90 alloy MNC18−20 should be removed from the production 01.01.1992 G.
The alloy has good spring properties.

Standards

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

Chemical composition

Standard Mn Fe Cu Zn Pb Ni+Co
GOST 492-2006 ≤0.5 ≤0.3 60-64 Rest ≤0.03 17-19
Cu is the basis.
According to GOST 492-2006, the total mass fraction of impurities is ≤ 0.60%. In the alloy, the mass fraction of cobalt ≤ 0.50% is allowed due to the mass fraction of Ni + Co, which is not taken into account in the total amount of impurities. The mass fraction of cobalt exceeding 0.50% is taken into account in the total amount of impurities. In the alloy, in agreement with the consumer, it is possible to determine the mass fraction of silicon, magnesium, arsenic, bismuth, phosphorus, tin, antimony.

Technological properties

Name The value
Pressure treatment Alloy well deformed in a cold state.
Corrosion resistance The alloy is resistant.