Clearfield Machine - Ductile Iron Castings

Ductile Iron Castings

The ASTM has five standards covering Ductile Iron castings. ASTM A536 is the most frequently used, covering the general engineering grades of Ductile Iron. The other standards cover austenitic and special Ductile Iron applications.

Clearfield produces Ductile Iron castings up to 18,000 pounds in various configurations from basic bars and rings, to highly cored volutes cylinders, and impellers. We work with wooden, Styrofoam or metal patterns either supplied by customers, or built by our own pattern shop. Clearfield specializes in Ductile Iron castings for single prototypes to lower volume production runs. We also have value added processes such as machining, painting, and assembly.

Clearfield Machine produces ductile iron castings with the following characteristics:

DUCTILE IRON SPECIFICATIONS
SPEC #	GRADE	TENSILE	MIN. YIELD	% ELONGATION	TYPICAL USAGE
ASTM A536	60-40-18	60,000	40,000	18	Pressure castings, pump parts
	60-45-12	60,000	45,000	12	Machinery, common parts
	80-55-06	80,000	55,000	6	Gearing, rollers
	100-70-03	100,000	70,000	3	High strength gears, machinery
	120-90-02	120,000	90,000	2	Pinions, slides, gears
SAE J434	D-4018	60,000	40,000	18	Automotive parts
	D-4512	60,000	45,000	12	General machinery
	D-5506	80,000	55,000	6	High strength parts
ASTM A395	60-40-18	60,000	40,000	18	Values, fittings, steam & chemical applications
ASTM A476	80-60-03	80,000	60,000	3	Paper mill dryer rolls & special applications
USMIL MIL 24137	A	60,000	45,000	15	Ship board equipment, pumps, compressors, gears, valves, hydraulic equipment
CMCo. WRN	WRN	60,000 PSI	Brinell Up to 450		Unmachined wear parts & liners for machinery
CMCo. NHR	NHR	60,000 PSI	Brinell 187-255		Heat resistant high strength glass molds