440A, 440B, 440C

440 Communia per cuncta ruunt elementa ;

• 16-18% chromium
• 1% Manganese
• 1% Pii
• 0.75% Molybdenum
• 0.04% Phosphorus
• 0.03% sulphur
• Quidam recipis Carbon

440A ensem

• 0.6-0.75% Carbon

440B ensem

• 0.75-0.95% Carbon

440C ensem

• 0.95-1.20% Carbon