Iron Cating

Silicon is essential to making grey cast iron as opposed to white cast iron. When silicon is alloyed with ferrite and carbon in amounts of about 2 percent, the carbide of iron becomes unstable. Silicon causes the carbon to rapidly come out of solution as graphite, leaving a matrix of relatively pure, soft iron. Weak bonding between planes of graphite lead to a high activation energy for growth in that direction, resulting in thin, round flakes. This structure has several useful properties.

The metal expands slightly on solidifying as the graphite precipitates, resulting in sharp castings. The graphite content also offers good corrosion resistance.

Graphite acts as a lubricant, improving wear resistance. The exceptionally high speed of sound in graphite gives cast iron a much higher thermal conductivity. Since ferrite is so different in this respect (having heavier atoms, bonded much less tightly) phonons tend to scatter at the interface between the two materials. In practical terms, this means that cast iron tends to “damp” mechanical vibrations (including sound), which can help machinery to run more smoothly.

All of the properties listed in the paragraph above ease the machining of grey cast iron. The sharp edges of graphite flakes also tend to concentrate stress, allowing cracks to form much more easily, so that material can be removed much more efficiently.

Easier initiation of cracks can be a drawback once an item is finished, however: grey cast iron has less tensile strength and shock resistance than steel. It is also difficult to weld.

Grey cast iro

n's high thermal conductivity and specific heat capacity are often exploited to make cast iron cookware and disc brake rotors.

Ningbo Ruyi Foundry Co.,Ltd. is your reliable source for Ductile iron casting, Grey iron casting and you can also entrust us for Stainless steel casting, Aluminium alloy casting and Refractory steel casting. The moulding process covers Resin Chemically Bonded Sand Cast, Resin Shell Cast, and Green Sand Cast . Based on the land of size 6000 square meters , the foundry's monthly iron casting output capacity is up to 350 tons, and 80% of the produced castings are sold to overseas markets .Our castings mainly apply to Machine tools industries Pumps industries Gas steam valve industries Automobile industries Air compressor industries Gear cases accessories Electric motor body accessories Other products.

Links: Automotive Bearings,Auto Bearings,Industrial Bearings,Ball Bearings,Wheel Bearings,Clutch Release Bearings,Water Pump Bearings ,Cylindrical Roller Bearings,Tensioner bearings

Ductile iron casting as found wide acceptance and competes favourably with steel such that its use in engineering has increased in recent times as while grey cast iron and malleable cast iron has fallen in popularity as other materials such as plastics have found favour.

Ductile iron casting has a clear advantage over malleable iron for applications where low solidification shrinkage is needed or where the section is too thick to permit uniform solidification as white iron

EQUIVALENT STANDARDS TECHNICAL SPECIFICATIONS
EN 1563	Germany	France	England	Netherlands	Sweden	USA		Hardness	Tensile Strength	0,2 Proof Stress	Elonga tion	Machinability	Microstructure
	DIN 1693	NF	BS	NEN	MNC	ASTM A536		HB 30	Rm N/mm?/font>	Rp0,2 N/mm?/font>	A5 %
EN-GJS-400- 18-LT	GGG-40.3		-	-	-	60-40-18		120-165	400-450	250-300	27-18	very good	Ferrit
EN-GJS-400-15	GGG-40	FGS 400-12	420/12	GN 42	0717-02	60-40-18		135-185	400-550	250-350	27-15	very good	Ferrit and Perlit
EN-GJS-450-10	-	-	420/12	-	-	65-45-12		160-210	450-600	310-410	20-10	good	Ferrit and Perlit
EN-GJS-500-7	GGG-50	FGS 500-7	500/7	GN 50	0727-02	65-45-12/ 80-55-06		170-220	500-650	320-420	18-7	good	Ferrit and Perlit
EN-GJS-600-3	GGG-60	FGS 600-3	600/3	GN 60	0732-03	80-55-06		200-250	600-750	370-480	8-3	good	Ferrit and Perlit
EN-GJS-700-2	GGG-70	FGS 700-2	700/2	GN 70	0737-01	100-70-03		235-285	700-850	420-600	6-2	moderate	Ferrit and Perlit
EN-GJS-800-2	GGG-80	FGS 800-2	800/2	-	-	120-90-02		270-335	800-1000	480-750	4-2	moderate	Perlit

In March of year 2004, Ningbo Ruyi Casting Co., Ltd. took the ownership of Fenghua Xinxin Casting Co., Ltd. and moved the whole metal melting and pouring production line to the production site of Ruyi forming an updated foundry with excellent technique and integral team.

Technique and capacity:

Ningbo Ruyi Foundry Co., Ltd. is your reliable source for Ductile iron casting, Grey iron casting .The molding process covers Resin Chemically Bonded Sand Cast, Resin Shell Cast, and Green Sand Cast.?We can also offer the advantage brought by our strategic long-term partner with diversified technique( Investment casting for steel, ,carbon steel,stainless steel, pressure die casting and gravity casting for aluminum, alloy, aluminum & zinc , as well as precision machining with general machine tool and CNC machines) so as to make customization easy to carry out . Our integral service concept brought us high praise from our customers from all over the world. Most of our products are exported to Canada, USA, and Europe Spain , Italy, Switzerland, Sweden, and so on etc. and win good reputation among our customers .

Based on the land of size 6000 square meters, the foundry's monthly iron casting output capacity is up to 350 tons, and 80% of the produced castings are sold to overseas markets.Iron Casting,Ductile Iron Casting,Grey Iron Casting,Steel Casting,Stainless Steel Casting,Carbon Steel Casting,Alloy Steel Casting,Aluminum Casting,Aluminum Pressure Die Casting,Aluminum Gravity Die Casting,Aluminum Sand Casting,Sand Casting,Green Sand Casting,Resin Sand Casting,Mold Shell Casting,Investment Casting,Die Casting,Pattern Service,CNC Machining,Machinery Parts,Auto Accessories,Valve Parts,Electric Power Transmission,Marine Parts,Railway Parts,Electric Motor Parts,Gear Cases,Chair Parts,Air Compressor Parts,Sewing Machine Parts,Construction Parts,Machine Tools Parts,Electric motor body & accessories,Manhole cover parts,Mining accessories,cylinder head & body,Counterweight items,Rotor housing,Flange, Tappet parts,Gear Cases & accessories,Sewing machine parts & accessories,Machine tools industries,Radiator parts,cylinder head & body,Counterweight items,Ductile Iron Casting,Grey Iron Casting

Business scope covers:

Machinery Parts ，Automotive accessory，Valve Parts, Electric power transmission，Marine Parts ，Railway parts，Electric motor body & accessories，Gear Cases & accessories，Chair Parts，Air compressor Parts & accessories，Manhole cover parts ，Flange, Tappet parts ，Sewing machine parts & accessories，Construction Parts & accessories，Mining accessories，Gardening Parts & Accessories，Machine tools industries,Radiator parts ,cylinder head & body ,Counterweight items,Rotor housing.

Certificate and Customization:

The foundry conforms to international standards and offers material analysis, heat treatment, non-destructive testing, proof and precision machining. With great efforts and carrying out our policy continuously which is to produce castings to meet your individual requirements, as well as monitoring each stage of production to guarantee high quality, we finally got certified by ISO9001:2000.

The foundry is located in the seaport city of Ningbo, China, it has convenient inland transportation and there are many sea-freight carriers towards different countries in the daily base. We cordially welcome customers from both domestic and overseas! Web Link Directory

Links:Bedroom Furniture,Water Filter,Auto Bearings,Automotive Bearings,Iron Casting,Connector,Hydraulic Valves,Wooden Toys,Wind Generator,Wind Turbine,Die Casting,Aluminum Die Casting,Plate Bending Machine,Shower Room ,ball valves,The China Manufacturer,China Manufacturer,China Manufacture Directory,Seo Web Link,China Manufacturers , China Manufacturers Directory