Brass Lost Wax Investment Casting Product from China Original Foundry with CNC Machining Services

Equivalent Grade of Brass and Bronze from Different Markets
China	Germany		Europe		International	USA	Japan
GB	DIN		EN		ISO	UNS	JIS
	Symbol	No.	Symbol	No.	Symbol	No.	No.
TU2	OF-Cu	2.004	Cu-OFE	CW009A	Cu-OF	C10100	C1011
-	SE-Cu	2.007	Cu-HCP	CW021A	-	C10300	-
-	SE-Cu	2.007	Cu-PHC	CW020A	-	C10300	-
T2	E-Cu58	2.0065	Cu-ETP	CW004A	Cu-ETP	C11000	C1100
TP2	SF-Cu	2.009	Cu-DHP	CW024A	Cu-DHP	C12200	C1220
-	SF-Cu	2.009	Cu-DHP	CW024A	Cu-DHP	C12200	C1220
-	SF-Cu	2.009	Cu-DHP	CW024A	Cu-DLP	C12200	C1220
TP1	SW-Cu	2.0076	Cu-DLP	CW023A	Cu-DLP	C12000	C1201
H96	CuZn5	2.022	CuZn5	CE500L	CuZn5	C21000	C2100
H90	CuZn10	2.023	CuZn10	CW501L	CuZn10	C22000	C2200
H85	CuZn15	2.024	CuZn15	CW502L	CuZn15	C23000	C2300
H80	CuZn20	2.025	CuZn20	CW503L	CuZn20	C24000	C2400
	CuZn28
H70	CuZn30	2.0265	CuZn30	CW505L	CuZn30	C26000	C2600
H68	CuZn33	2.028	CuZn33	CW506L	CuZn35	C26800	C2680
H65	CuZn36	2.0335	CuZn36	CW507L	CuZn35	C27000	C2700
H63	CuZn37	2.0321	CuZn37	CW508L	CuZn37	C27200	C2720
HPb63-3	CuZn36Pb1.5	2.0331	CuZn35Pb1	CW600N	CuZn35Pb1	C34000	C3501
HPb63-3	CuZn36Pb1.5	2.0331	CuZn35Pb2	CW601N	CuZn34Pb2	C34200	-
H62	CuZn40	2.036	CuZn40	CW509N	CuZn40	C28000	C3712
H60	CuZn38Pb1.5	2.0371	CuZn38Pb2	CW608N	CuZn37Pb2	C35000	-
HPb63-3	CuZn36Pb3	2.0375	CuZn36Pb3	CW603N	CuZn36Pb3	C36000	C3601
HPb59-1	CuZn39Pb2	2.038	CuZn39Pb2	CW612N	CuZn38Pb2	C37700	C3771
HPb58-2.5	CuZn39Pb3	2.0401	CuZn39Pb3	CW614N	CuZn39Pb3	C38500	C3603
-	CuZn40Pb2	2.0402	CuZn40Pb2	CW617N	CuZn40Pb2	C38000	C3771
-	CuZn28Sn1	2.047	CuZn28Sn1As	CW706R	CuZn28Sn1	C68800	C4430
-	CuZn31Si1	2.049	CuZn31Si1	CW708R	CuZn31Si1	C44300	-
-	CuZn20Al2	2.046	CuZn20Al2As	CW702R	CuZn20Al2	C68700	C6870
QSn4-0.3	CuSn4	2.1016	CuSn4	CW450K	CuSn4	C51100	C5111
-	CuSn5	2.1018	CuSn5	CW451K	CuSn5	C51000	C5102
QSn6.5-0.1	CuSn6	2.102	CuSn6	CW452K	CuSn6	C51900	C5191
QSn6.5-0.4	CuSn6				CuSn6	C51900	C5191
QSn7-0.2	CuSn8				CuSn8	C52100	C5210
QSn8-0.3	CuSn8	2.103	CuSn8	CW453K	CuSn8	C52100	C5210
BZn12-24	CuNi12Zn24	2.073	CuNi12Zn24	CW403J	CuNi12Zn24	C75700	-
BZn12-26	CuNi18Zn27	2.0742	CuNi18Zn27	CW410J	CuNi18Zn27	C77000	C7701
BZn18-18	CuNi18Zn20	2.074	CuNi18Zn20	CW409J	CuNi18Zn20	C76400	C7521
-	CuNi10Fe1Mn	2.0872	CuNi10Fe1Mn	CW352H	CuNi10Fe1Mn	C70600	C7060
-	CuNi30Mn1Fe	2.882	CuNi30Mn1Fe	CW354H	CuNi30Mn1Fe	C71500	C7150
T3					Cu-FRTP	C12500
TAg0.1	CuAg0.1				CuAg0.1
HPb63-0.1	CuZn37Pb0.5
HPb61-1	CuZn39Pb0.5					C37100	C3710
HAl77-2	CuZn20Al2				CuZn20Al2	C68700	C6870
HSn70-1	CuZn28Sn1				CuZn28Sn1	C44300	C4430
HSn62-1	CuZn38Sn1				CuZn38Sn1	C46400	C4620
HMn58-2	CuZn40Mn2
QAl5	CuAl5As				CuAl5
QAl7	CuAl8				CuAl7	C61000
QAl9-2	CuAl9Mn2				CuAl9Mn2
QAl10-3-1.5	CuAl10Fe3Mn2					C63200
QAl10-4-4	CuAl10Ni5Fe4				CuAl10Ni5Fe5	C63020
QAl11-6-6	CuAl11Ni6Fe5
QBe2	CuBe2				CuBe2	C17200	C1720
QBe1.7	CuBe1.7				CuBe1.7	C17000	C1700
QZr0.2	CuZr					C15000
QCd1	CuCrZr				CuCd1	C16200
QMg0.8	CuMg0.7
ZQSnD5-5-5	GB-CuSn5ZnPb				GCuPb5Sn5Zn	C83600	BCln6
ZQSnD10-1	GB-CuSn10				GCuSn10P
ZQSnD10-2	GB-CuSn10Zn				GCuSn10Zn2		BCln3
ZQAlD9-4-4-2	GB-CuAl10Ni				GCuAl10Fe5Ni5	C95800	AlBCln3
ZQAlD9-4	GB-CuAl10Fe				GCuAl10Fe3	C95200	AlBCln1

Brass is an alloy composed of copper and zinc. Brass composed of copper and zinc is called ordinary brass. If it is a variety of alloys composed of more than two elements, it is called special brass. Brass is a copper alloy with zinc as the main element. As the zinc content increases, the strength and plasticity of the alloy increase significantly, but the mechanical properties will decrease significantly after exceeding 47%, so the zinc content of brass is less than 47%. In addition to zinc, cast brass often contains alloying elements such as silicon, manganese, aluminum, and lead. Casting brass has higher mechanical properties than bronze, but the price is lower than bronze. Cast brass is often used for general purpose bearing bushes, bushings, gears and other wear-resistant parts and valves and other corrosion-resistant parts. Brass has strong wear resistance. Brass is often used to make valves, water pipes, connecting pipes for internal and external air conditioners, and radiators.

Investment (lost wax) casting is a method of precision casting complex near-net-shape details using replication of wax patterns. Investment casting or lost wax is a metal forming process that typically uses a wax pattern surrounded by a ceramic shell to make a ceramic mold. When the shell dries, the wax is melted away, leaving only the mold. Then the casting component is formed by pouring molten metal into the ceramic mold.

The process is suitable for repeatable production of net shape components from a variety of different metals and high performance alloys. Although generally used for small castings, this process has been used to produce complete aircraft door frames, with steel castings of up to 500 kgs and aluminium castings of up to 50 kgs. Compared to other casting processes such as die casting or sand casting, it can be an expensive process. However, the components that can be produced using investment casting can incorporate intricate contours, and in most cases the components are cast near net shape, so require little or no rework once cast.

Silica sol casting process is the main steel investment casting process of RMC investment casting foundry. We have been developing new technology of adhesive material to achieve much more economical and effective adhesive material to build the slurry shell. It is a overwhelming trend that Silica sol casting process replaces the rough inferior water glass process, especially for stainless steel casting and alloy steel casting. Besides the innovated molding material, the silica sol casting process has also being innovated to much steadier and less heat expanding.

▶ Ferrous and Non-ferrous Materials for Investment Casting, Lost Wax Casting Process:

• Carbon Steel: AISI 1020 - AISI 1060,
• Steel Alloys: ZG20SiMn, ZG30SiMn, ZG30CrMo, ZG35CrMo, ZG35SiMn, ZG35CrMnSi, ZG40Mn, ZG40Cr, ZG42Cr, ZG42CrMo...etc on request.
• Stainless Steel: AISI 304, AISI 304L, AISI 316, AISI 316L, 1.4404, 1.4301 and other stainless steel grade.
• Brass, Red Copper, Bronze or other Copper-based alloy metals
• Other Materials as per your unique requirements or according to ASTM, SAE, AISI, ACI, DIN, EN, ISO, and GB standards

▶ Capabilities of Investment Casting Foundry

• Max Size: 1,000 mm × 800 mm × 500 mm
• Weight Range: 0.5 kg - 100 kg
• Annual Capacity: 2,000 tons
• Bond Materials for Shell Building: Silica Sol, Water Glass and their mixtures.
• Tolerances: On Request.

▶ Main Production Procedure

• Patterns & Tooling Design → Metal Die Making → Wax Injection → Slurry Assembly → Shell Building → De-Waxing → Chemical Composition Analysis → Melting & Pouring → Cleaning, Grinding & Shot Blasting → Post Processing or Packing for Shipment

▶ Inspecting Lost Wax Castings

• Spectrographic and manual quantitative analysis
• Metallographic analysis
• Brinell, Rockwell and Vickers hardness inspection
• Mechanical property analysis
• Low and normal temperature impact testing
• Cleanliness inspection
• UT, MT and RT inspection

▶ Post-Casting Process

• Deburring & Cleaning
• Shot Blasting / Sand Peening
• Heat Treatment: Normalization, Quench, Tempering, Carburization, Nitriding
• Surface Treatment: Passivation, Anodizing, Electroplating, Hot Zinc Plating, Zinc Plating, Nickel Plating, Polishing, Electro-Polishing, Painting, GeoMet, Zintec.
• Machining: Turning, Milling, Lathing, Drilling, Honing, Grinding.

▶ Advantages of Investment Casting Components:

• Excellent and smooth surface finish
• Tight dimensional tolerances.
• Complex and intricate shapes with design flexibility
• Capability to cast thin walls therefore a lighter casting component
• Wide selection of cast metals and alloys (ferrous and non-ferrous)
• Draft is not required in the molds design.
• Reduce the need for secondary machining.
• Low material waste.

▶ Why You Choose RMC for Custom Lost Wax Casting Parts?

• Full solution from one single supplier ranging customized pattern design to finished castings and secondary process including CNC machining, heat treatment and surface treatment.
• Costdown proposals from our professional engineers based on your unique requirement.
• Short leadtime for prototype, trial casting and any possible technical improvement.
• Bonded Materials: Silica Col, Water Glass and their mixtures.
• Manufacturing flexibility for small orders to mass orders.
• Strong outsourcing manufacturing capabilities.

▶ General Commerial Terms

• Main workflow: Inquiry & Quotation → Confirming Details / Cost Reduction Proposals → Tooling Development → Trial Casting → Samples Approval → Trial Order → Mass Production → Continuous Order Proceeding
• Leadtime: Estimatedly 15-25 days for tooling development and estimatedly 20 days for mass production.
• Payment Terms: To be negotiated.
• Payment methods: T/T, L/C, West Union, Paypal.

To know better about our capabilities of lost wax casting process, please click the following picture to turn to our page of Investment Casting Capabilities: