Castings

Castings

Baker Casting Division offers castings in a variety of materials and grades that impact strength, wear, ductility, chemical resistance, vibration dampening, and elasticity for the application. We are experts in achieving the properties required for your parts. Please contact us for assistance to ensure the right balance of material properties for your parts, 1-608-882-5100.

Baker Casting Austempered Ductile Iron Process

GRAY IRON

Gray Iron is the most common widely foundry casting alloy. The characteristic gray color is due to flakes of graphite contained in the metal. Graphite helps to make the properties of gray iron excellent for machining, outstanding in wear resistance and high-vibration damping.

Safety Data Sheet Gray Iron

SPECIFYING BODYSpec No.Grade or class of MaterialTensile Strength (psi)Brinell Range (BHN)Typical application
ASTM
SAE
ASTM
ASME
A48-94A
J431
A159-83
2525000170-229General machinery, municipal and water works, light duty compressors.
Machine tools, medium size gear blanks, heavy duty compressors.
Dies, crankshafts, high pressure cylinders, heavy duty machine tool parts, large gears, press frames.
3030000187-241
3535000207-255
4040000217-269
Pouring Ductile Iron Castings

DUCTILE IRON

Ductile (or nodular) iron is valued for its ductility, elasticity and high strength properties that allow heavier loads. It is easily cast and machined and is as corrosion resistant as gray iron. Production of ductile iron requires more complex metallurgy, the use of special melting stock and special quality control procedures.

Safety Data Sheet Ductile Iron

SPECIFYING BODYSpec No.Grade or class of MaterialTensile Strength (psi)Yield Strength (psi)Elongation (%)Brinell Range (BHN)Typical Applications
ASTM
SAE
ASTM
ASME
A536-88 J434C A395-88 SA39560-40-18 *
D-4018
600004000018170 MaxPressure castings, such as valve & pump bodies.
65-45-12
D-4512
650004500012156-214Machinery castings subject to shock and fatigue loading.
80-55-06
D-5506
80000550006187-255Automotive and machine components; crankshafts, high strength gears and rollers.
100-70-03
D-7003
100000700003245-295
Austempered Ductile Iron Castings

AUSTEMPERED DUCTILE IRON

Ductile (or nodular) iron is valued for its enhanced elasticity and high strength properties that serve even heavier loads than plain ductile iron. It is easily cast and machined, and it is as corrosion resistant as gray iron. Production of austempered ductile iron requires more complex metallurgy testing, the use of special melting stock, and strict process controls and quality procedures.

SPECIFYING BODYSpec No.GradeTensile Strength (KSI)Yield Strength (KSI)Elongation (%)Brinell Range (BHN)Typical Applications
ASTMA897-90 1130909269-341Typical applications for austempered ductile iron are where high strength is needed, and where excellent wear resistance and fatigue strength are required.
21501107302-375
31751254341-444
42001552388-477

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Choosing a foundry to supply your castings is an important decision. The castings are an integral part of the products that you manufacture and sell.