Sand Casting Gray Cast Iron Machinery Parts in China Foundry

Product Name:

Gray Iron Machinery Parts, Grey Iron Machine Parts, Gray Cast Iron Castings, Sand Casting Parts

Grey Iron Castings Methodology:
Grey iron can be alloyed with small amounts of copper, molybdenum, vanadium or chrome to produce increasingly stronger irons as the alloy levels are increased. This is achieved by controlling the amount of ferrite and pearlite in the iron matrix. Ferrite is much softer that pearlite so alloys are used, along with lower levels of carbon and silicon, which will promote a pearlitic structure. These alloyed grey irons have applications where a higher tensile strength or hardness is required. These alloys also produce an iron that can respond to heat treatment although this is uncommon. The only heat treatment routinely used is either stress relieving or annealing. With the addition of nickel up to 30% and chrome at smaller levels a range of austenitic grey irons can be produced which have improved properties at elevated temperatures and in aggressive atmospheres and environments.

Material Grades:
Gray Cast Iron, Grey Iron

Country	Standard	Equivalent Grades of Gray Iron (Grey Cast Iron)
ISO	ISO 185	100	150	200	250	300	350	—
China	GB 9439	HT100	HT150	HT200	HT250	HT300	HT350	—
USA	ASTM A48	—	NO.20	NO.30	NO.35	NO.40	NO.50	NO.55
USA	ASTM A48	—	NO.25	NO.30	NO.35	NO.45	NO.50	NO.60
Germany	DIN 1691	GG10	GG15	GG20	GG25	GG30	GG35	GG40
Austria	DIN 1691	GG10	GG15	GG20	GG25	GG30	GG35	GG40
European	EN 1561	EN-GJL-100	EN-GJL-150	EN-GJL-200	EN-GJL-250	EN-GJL-300	EN-GJL-350
Japan	JIS G5501	FC100	FC150	FC200	FC250	FC300	FC350	—
Italy	UNI 5007	G10	G15	G20	G25	G30	G35	—
France	NF A32-101	—	FGL150	FGL200	FGL250	FGL300	FGL350	FGL400
UK	BS 1452	100	150	200	250	300	350	—
India	IS 210	—	FG150	FG200	FG260	FG300	FG350	FG400
Spain	UNF	—	FG15	FG20	FG25	FG30	FG35	—
Belgium	NBN 830-01	FGG10	FGG15	FGG20	FGG25	FGG30	FGG35	FGG40
Australia	AS 1830	—	T150	T220	T260	T300	T350	T400
Sweden	SS 14 01	O110	O115	O120	O125	O130	O135	O140
Norway	NS11 100	SJG100	SJG150	SJG200	SJG250	SJG300	SJG350	—

Production Process:
Sand Casting, Automatic Molding, Machine Molding, Shell Molding, Green Sand Casting, Resin Sand Casting,

Supplier:
Gray Iron Foundry in China, Grey Iron Casting Manufacturer, Iron Foundry, China Foundry

Dandong Foundry is producing cast iron and cast steel castings by various sand casting and precision casting processes, including Automatic Molding Line, Resin Sand Molding, Shell Molding, Manual Green Sand Cast Molding, Shell Molding, Lost Wax Investment Casting Process by water glass and silica sol materials.

We have complete quality inspection devices for Mechanical Testing and Chemical Analysis, including tensile strength, hardness, metallographic inspection, hardness, spectrometer, ultrasonic testing. ISO 9001 Certified. We can issue quality reports for all inspections.

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