440A, 440B, 440C

Izinto eziqhelekileyo kuzo zonke iintsimbi ezingama-440:

• 16-18% chromium
• I-1% yeManganese
• I-silicon ye-1%.
• 0.75% Molybdenum
• 0.04% iPhosphorus
• 0.03% isulfure
• Enye ipesenti yeCarbon

440A intsimbi

• 0.6-0.75% Ikhabhoni

440B intsimbi

• 0.75-0.95% Ikhabhoni

440C intsimbi

• 0.95-1.20% Ikhabhoni