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Heavy Duty Applications:
Meehanite ADI Types (Austempered Ductile Iron)

Type K-295 and K-325 are used for applications such as gears requiring high contact rolling and tooth bending fatigue properties. Also possess high fracture toughness impact strength. K-405 is for applications involving wear and requiring high tensile and endurance limit. All types are useful to meet high mechanical properties with a 10% weight savings compared to steel. Excellent founding properties enable more accurate castings with savings in machine stock required. Damping capacity and notch sensitivity are superior to steel castings and forgings. Self-lubricating properties of all types make them ideal for wear conditions involving minimal lubrication.


PROPERTY TYPE
K-295
TYPE
K-325
TYPE
K-405
Tensile Strength-psi 130,000 145,000 175,000
Yield Strength-psi 98,000 112,000 140,000
Endurance Limit
Unnotched
Notched
63
39
66
47
74
51
Elongation % 8-12 5-8 2-5
Hardness (Approx.) 280-310 300-350 380-430

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