EI437A (HN77TYU)
Classification
| Country |
Section |
Category |
| CIS, Russia, Ukraine |
Corrosion-resistant alloys and steels |
Corrosion-resistant heat-resistant steel |
Chemical composition
| Standard |
Fe, % |
Si, % |
B, % |
Mn, % |
Co, % |
Cr, % |
Ti, % |
Cu, % |
Ni, % |
V, % |
Al, % |
Pb, % |
Ce, % |
P, % |
C, % |
S, % |
Nb, % |
Mo, % |
W, % |
|---|
| GOST 5632-72 |
< 1 |
< 0.6 |
< 0.003 |
< 0.4 |
< 0.2 |
19–22 |
2.4–2.8 |
< 0.07 |
71.014–78 |
< 0.2 |
0.6–1 |
< 0.001 |
< 0.02 |
< 0.015 |
< 0.07 |
< 0.007 |
< 0.2 |
< 0.2 |
< 0.2 |
Information on suppliers
Standards
Description of chemical elements
| Element |
Units of measurement |
Description |
| Fe |
% |
Iron |
| Si |
% |
Silicon |
| B |
% |
Bor |
| Mn |
% |
Manganese |
| Co |
% |
Cobalt |
| Cr |
% |
Chrome |
| Ti |
% |
Titan |
| Cu |
% |
Copper |
| Ni |
% |
Nickel |
| V |
% |
Vanadium |
| Al |
% |
Aluminium |
| Pb |
% |
Lead |
| Ce |
% |
Cerium |
| P |
% |
Phosphorus |
| C |
% |
Carbon |
| S |
% |
Sulfur |
| Nb |
% |
Niobium |
| Mo |
% |
Molybdenum |
| W |
% |
Tungsten |