Alloy MN25

Designation

Name The value
Designation GOST Cyrillic МН25
Designation GOST Latin MH25
Transliteration MN25
By chemical elements CuNi25

Description

MN25 alloy used: for the manufacture of semi-finished products (strips, sheets, strips, rods, pipes); coins; decorative items and consumer goods.

Standards

Name Code Standards
Non-ferrous metals, including rare, and their alloys В51 GOST 28873-90, GOST 492-2006
Tape В54 TU 48-21-448-79

Chemical composition

Standard C S Mn Fe Cu Zn Pb Ni+Co
GOST 492-2006 ≤0.05 ≤0.01 ≤0.5 ≤0.5 Rest ≤0.3 ≤0.005 24-26
Cu is the basis.
According to GOST 492-2006, the total mass fraction of impurities is ≤ 1.30%. 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
Weldability Well weldable alloy.
Pressure treatment The bad alloy is deformed in the cold state.
Corrosion resistance Corrosion resistant.