440A, 440B, 440C

Abubuwan gama gari a duk 440 karfe:

• 16-18% chromium
• 1% manganese
• 1% silicon
• 0.75% molybdenum
• 0.04% Phosphorus
• 0.03% sulfur
• Wasu kashi na Carbon

440A karfe

• 0.6-0.75% Carbon

440B karfe

• 0.75-0.95% Carbon

440C karfe

• 0.95-1.20% Carbon