P21

Classification

Country Section Category
CIS, Russia, Ukraine Copper, copper alloys Copper Alloys

Chemical composition

Standard Si, % B, % Sn, % Cu, % Zn, % Ni, % As, % Nb, %
TU 48-21-843-87 0.2 0.2 7 56 86.3 1 0.1 0.2

Information on suppliers

Standards

Standard Description
TU 48-21-843-87 TU 48-21-843-87

Description of chemical elements

Element Units of measurement Description
Si % Silicon
B % Bor
Sn % Tin
Cu % Copper
Zn % Zinc
Ni % Nickel
As % Arsenic
Nb % Niobium