FONTE GG-25 GRADE: COMPOSITION CHIMIQUE MATÉRIEL
matériel |
pourcentage (%) |
C |
3.0 to 3.90% |
Si |
2.0 to 2.90 % |
Mn |
0.60 to 0.70 % |
Cr |
0.30 %Max |
Cu |
Max 0.50% |
Sn |
0.10% |
S |
0.15%Max |
P |
0.40 to 0.70 % |
Fe |
Balance |
DURETE |
190-240BHN |
BRASS VALVE GUIDES: COMPOSITION CHIMIQUE MATÉRIEL
Material |
Percentage (%) |
Cu |
56.0 to 58.0% |
Pb(Led) |
2.0 to 3.4% |
Sn(Tin) |
TR |
Fe(Iron) |
0.35 %Max |
Cu |
Max 0.50% |
Al |
TR |
Ni |
TR |
Mn |
TR |
Total impurities |
0.70 % |
ALUMINUM BRONZE VALVE GUIDES: MATERIAL CHEMICAL COMPOSITION
matériel |
pourcentage (%) |
Cu |
57.0 to 60.0% |
Pb(Led) |
0.30 to 0.60% |
Fe |
0.25 %Max |
Ai |
1.50 to 2.0 % |
Mn |
2.0 to 4.0 % |
Si |
0.60 to 0.90 % |
Total d'impuretés |
0.40% Max |
DURETE |
150 to 210BHN |