Sand Casting Iron Square-Head

This square head is used for hand wheel, which is made out of iron, we can also manufacture according to your drawings or samples.
 
Sand casting process:
Sand casting is perhaps the oldest and most commonly used type of metal forming in the market place today
It is capable of forming both large and small parts and can be used for a number of different materials
We offer a wide range of sand castings
We offer both green sand castings and resin sand casings in both ferrous and non-ferrous materials
Perhaps the most common green sand casting would be made from either grey iron or ductile iron
We can supply these castings from approximately 0.1 to approximately 10000kg and up to 5000 x 2000 x 1500mm in size for the largest part
Molding methods range from floor hand molding, jolt squeezer lines and automatic molding lines
With this variety of molding methods we are able to accommodate the weight, size and quantity the customer's requirement
Steel sand castings are available both as green sand castings and resin sand castings, and are available in plain carbon, low alloy and stainless steels
In the category of sand castings the smallest available part would be approximately 2kg while the largest would be approximately 20 tons for sand casting and 5 tons for resin sand casting
Steel castings smaller than the 2kg range would be made as a water glass casting (see investment castings)
Non-ferrous sand castings are also available
The molding process used is green sand and we can accommodate requests for castings weighing from 0.5 to 100kg
The alloys that are available includes copper base and aluminum base alloys
Please check the technical specification sheet for all materials available
First article layouts and spectrometer material certifications are provided with all first article samples
A variety of secondary operations can be performed on all types of sand castings
They includes heat treatment, machining, plating, painting, polishing and buffing, assembly services and even custom packaging
The products we can make are used in metallurgy, automobile, aero, chemical, ship hardware, construction and many other engineering industry

                                                               Materials that can be used in our sand casting process
Gray iron

Standard-Spec.No.&Class			T.S. σb≥ (N/mm2)	Hardness HB≤	Note: (1) Test Bar θ=30mm (2) Chemieal composition and other requirement can be established upon       written agreement between manufacturer and purchaser. (3) The hardness values are for castings of 15~30mm thickness.
GB China/ISO	JIS JAPAN	ASTM U.S.A.
HT200/200	FC200	CI.30	200	223
HT250/250	FC250	CI.35	250	241
HT300/300	FC300	CI.40	300	262
HT350/350	FC350	CI.50	350	277

Ductile iron

Standard-Spec.No&Class			T.S. σb≥ (N/mm2)	Y.S. σs≥ (%)	EL δ≥	For Reference		Note: (1) Separately cast test bars machined to φ 14mm from 25mm keel blocks; (2) Same as above note(2)
GB China	JIS Japan	ASTM A536 U.S.A.				Hardness HB	Micor-structure
QT400-18	FCD400-18	60-40-18	400	250	18	130-180	Ferrite(F)
QT450-10	FCD450-10		450	310	10	160-210	(F)
QT500-7	FCD500-7	65-45-12	500	320	7	170-230	(F)+Pearlite(P)
QT600-3	FCD600-3	80-55-06	600	370	3	190-270	(P)+(F)
QT700-2	FCD700-2	100-70-03	700	480	2	225-305	(P)
QT800-2	FCD800-2	100-70-03	800	480	3	245-335	(P)or tempered structure

Carbon steel

Standard-Spec.No.& Grade			Chemical Composition≤ (%)			Mechanical Properties≥				Note: (1) S,P≤0.04% (2) C,Mn% can also be agreed upon by manufacturer and purchaser. (3) Heat Treat: Normalize(N)+Temper(T) or Quench(Q)+T,selected by Foundry.
GB China	JIS Japan	ASTM U.S.A.	C	Si	Mn	T.S. σb (N/mm2)	Y.S. σs (N/mm2)	EL δ%	R.A. ψ%
ZG200-400	SC420	A27 60-30	0.2	0.5	0.8	400	200	25	40
ZG230-450	SC450	65-35	0.3		0.9	450	230	22	32
ZG270-500	SC480	70-40	0.4			500	270	18	25
ZG340-640	SCC3B	A148 80-50	0.6	0.6		640	240	10	18

Aluminum-base cast Alloy

Standard-Spec.No.				Chemical Composition%							Condition	Mechanical Properties≥
GB China	Code China	JIS Japan	Alcoa (ASTM)	Si	Cu	Mg	Mn	Ti	Ni	Al		T.S. σb (N/mm2)	Hardness (HB)	EL σ%
ZAISi7Mg	ZL101	AC4C	356 (SG70A)	6.5-7.5		0.25-0.45				Bala nce	F T6	155-220	50-70	2-1
ZAISi9Mg	ZL104	AC4A	360	8.0-10.5		0.17-0.30	0.2-0.5				T6	220	70	2
ZAISi5Cu1Mg	ZL105	AC4D	355 (SC51A)	4.5-5.5	1.0-1.5	0.4-0.6					T6	220	70	0.5
ZAISi12Cu11Mg1Ni1	ZL109	AC8A	A132	11.0-13.0	0.5-1.5	0.8-1.3			0.8-1.5		T6	240	100
ZAICu5Mu	ZL201				4.5-5.3		0.60-1.0	0.15-0.35			T5	330	90	4
ZAIMg5Si1	ZL303			0.8-1.3		4.5-5.5	0.1-0.4				F	145	55	1

Note:(1) F-as cast;T5-Solution treat+artifical aging;T6-Solution treat+over aging

Copper-base cast alloy

Standard-Spec.No.			Chemical Composition%					Mechanical Properties≥
GB China	JIS Japan	ASTM U.S.A	Sn	Zn	Pb	Si	Cu	T.S.σb (N/mm2)	Y.S. σ%	EL HBW	Hardness
ZCuSn5Pb5Zn5	BC6	C83600	4.0-6.0	4.0-6.0	4.0-6.0		Balance	200	90	13	60
ZCuSn10Zn2	BC3	C90500	9.0-11.0	1.0-3.0				240	120	12	70
ZCuZn16Si4	SZBC3	C87800		Balance		2.5-4.5	79.5-81.0	390		20	100
ZCuZn40Pb2		C85700			0.5-2.5		58.0-63.0	220	120	15	80