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Gray Iron Casting

With its wide range of mechanical properties, Gray Iron Casting is suitable for many engineering applications, especially where intricacy of design is required. Gray Iron Casting is commonly used when ductility is not a factor.

Typical Applications for Gray Iron Casting:
Gray Iron Casting is particulary well suited for General Machinery, Stock Fittings, Automotive Parts, Valve Bodies, Railroad Accessories

Advantages of Gray Iron Casting:
Gray Iron Casting provides advantages in the areas of Cost, Excellent Machining, Dampening Capacity (ability to absorb vibrations). Good Wear Characteristics (self lubricating), Compressive Strength

Gray Iron Casting Specifications Grade Tensile BHN
ASTM A48 Class 25 25,000 170-229
SAE J431 G2500 25,000 170-229
GM274M G150 21,750 143-207
ASTM A48 Class 30 30,000 187-241
ASTM A126 Class B 31,000  
SAE J431 G3000 30,000 187-241
GM274M G200 29,000 170-229
GM274M G205 29,725 179-241
ASTM A48 Class 35 35,000 207-255
SAE J431 G3500 35,000 207-255
GM274M G240 34,800 179-255
GM274M G250 36,250 187-255