Material: Alloy Steel, Stainless Steel, Carbon Steel Process: Lost Wax Investment Casting Weight: 5.26 KG Application: Impeller for Centrifugal Pump
Investment castings are widely used in pumps and valves, automobile, trucks, hydraulics, forklift trucks and many other industries. Because of their exceptional casting tolerance and exellent finish, the lost wax castings are used more and more.
During the investment casting process, a wax pattern is coated with a ceramic material, which, when hardened, adopts the internal geometry of the desired casting. In most cases, multiple parts are cast together for high efficiency by attaching individual wax patterns to a central wax stick called a sprue. The wax is melted out of the pattern – which is why it is also known as the lost wax process – and molten metal is poured into the cavity. When the metal solidifies, the ceramic mold is shaken off, leaving the near net shape of the desired casting, followed by finishing, testing and packaging.
Materials for Investment Casting Process at RMC Foundry |
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Category | China Grade | UK Grade | US Grade | Japan Grade | Germany Grade |
Carbon Steel | ZG15, ZG20, ZG25, ZG35, ZG45, ZG55, Q235, Q345, Q420 | A1, A3, A5, CLA1A, CLA1C, AM1 |
1008, 1015, 1018, 1020,
1025, 1030, 1035, 1040,
1045, 1050, 1060, 1070, WC6, WCC, WCB, WCA, LCB
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SC360, SC450, SC480, SCW410, SCW450, SCW550, SCW620, SCC5, S15C, S20C, S25C, S45C, S50C | 1.0570, 1.0558, 1.1191, 1.0619, 1.0446, GS38, GS45, GS52, GS60, 1.0601, C20, C25, C30, C45 |
Low Alloy Steel |
20Mn, 45Mn, ZG20Cr, 40Cr, 20Mn5, 16CrMo4, 42CrMo,
40CrV, 20CrNiMo, GCr15, 9Mn2V
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CLA2, CLA3, CLA4, CLA8, CLA5A, CLA5B, CLA9, CLA11, CLA12B, CLA12C, CLA13, CLA1B, EN1A, EN8, EN9, EN14, EN19, EN24, EN32B, PD100A, NCM3, NCM5, NCM8, NCM32 | 1117, 4130, 4140, 4340, 6150, 5140, WC6, LCB, Gr.13Q, 8620, 8625, 8630, 8640, H13 | SCM415, SCM435, SCM440, SCM445, SKS3 |
GS20Mn5, GS15CrNi6, GS16MnCr5, GS25CrMo4V, GS42CrMo4, S50CrV4,
34CrNiMo6, 50CrMo4, G-X35CrMo17, 1.1131, 1.0037, 1.0122, 1.2162, 1.2542, 1.6511, 1.6523, 1.6580, 1.7131, 1.7132, 1.7218, 1.7225, 1.7227, 1.7228, 1.7231, 1.7321, 1.8519, ST37, ST52
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Ferritic Stainless Steel | 1Cr17, 022Cr12, 10Cr17, | ANC1B | 430, 431, 446, CA-15, CA6N, CA6NM | SCS1, SCS1X, SCS3, CS3X, SCS4, SCS5, SCS6 | 1.4000, 1.4005, 1.4008, 1.4016, GX22CrNi17, GX4CrNi13-4 |
Martensitic Stainless Steel | 1Cr13, 2Cr13, 3Cr13, 4Cr13, | ANC1C, ANC2 | 410, 420, 430, 440B, 440C | SCS2, SCS2A | 1.4021, 1.4027, 1.4028, 1.4057, 1.4059, 1.4104, 1.4112, 1.4116, 1.4120, 1.4122, 1.4125 |
Austenitic stainless steel |
06Cr19Ni10, 022Cr19Ni10,
06Cr25Ni20, 022Cr17Ni12Mo2, 03Cr18Ni16Mo5
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ANC3A, ANC3B, ANC3ALC, ANC3AFC, ANC3BFC, ANC4B, ANC4BFC, ANC20, 316C12, 316S16, 316C16, 347C17 | 302, 303, 304, 304L, 316, 316L, 329, CF3, CF3M, CF8, CF8M, CN7M, CN3MN | SCS11, SCS13, SCS14, SCS14A, SCS16, SCS16A, SCS18, SCS21, SCS35 |
1.3960, 1.4301, 1.4305, 1.4306, 1.4308, 1.4313, 1.4321, 1.4401, 1.4403, 1.4404, 1.4405, 1.4406, 1.4408, 1.4409, 1.4435, 1.4436, 1.4539, 1.4550, 1.4552, 1.4581,
1.4582, 1.4584,
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Precipitation Hardening Stainless Steel | 05Cr15Ni5Cu4Nb, 05Cr17Ni4Cu4Nb | ANC20, ANC21, ANC22 | 630, 634, 17-4PH, 15-5PH, CB7Cu-1 | SCS24, SCS32 | 1.4542 |
High Mn Steel | ZGMn13-1, ZGMn13-3, ZGMn13-5 | BW10 | B2, B3, B4 | SCMnH1, SCMnH11, SCMnH21 | 1.3802, 1.3966, 1.3301, 1.3302 |
Duplex Stainless Steel | 022Cr22Ni5Mo3N, 022Cr25Ni6Mo2N |
A 890 1C, A 890 1A, A 890 3A, A 890 4A, A 890 5A,
A 995 1B, A 995 4A, A 995 5A, 2205, 2507
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SCS10, SCS11 | 1.4460, 1.4462, 1.4468, 1.4469, 1.4517, 1.4770 | |
Tool Steel | Cr12 | A5, H12, S5 | SKD11, SKH9, SKH51 | 1.2344, 1.3343, 1.4528, GXCrMo17, X210Cr13, GX162CrMoV12 | |
Heat Resistant Steel |
20Cr25Ni20, 16Cr23Ni13,
45Cr14Ni14W2Mo
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ANC5A | 309, 310, CK20, CH20, HK30 | SCH1, SCH2, SCH11, SCH13, SCH15, SCH21, SCH22, SCH24, SCH41, | 1.4826, 1.4828, 1.4855, 1.4865 |
Nickle-base Alloy | ANC19 |
HASTELLY-C, HASTELLY-X, SUPPER22H, CW-2M, CW-6M, CW-12MW, CX-2MW, HX(66Ni-17Cr), MRE-2, NA-22H, NW-22, M30C, M-35-1, INCOLOY600,
INCOLOY625
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SCH43, SCH44, SCH45, | 2.4815, 2.4879, 2.4680 | |
Aluminum
Alloy
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ZL101, ZL102, ZL104 | ASTM A356, ASTM A413, ASTM A360 | AC3A, AC4A, AC4C | G-AlSi7Mg, G-Al12 | |
Copper Alloy |
H96, H85, H65, HPb63-3,
HPb59-1, QSn6.5-0.1, QSn7-0.2
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CZ125, CZ102, CZ107, CZ124, CZ122 | C21000, C23000, C27000, C34500, C37710, C86500, C87600, C87400, C87800, C52100, C51100 | C2100, C2300, C2700, C3560, C3771, C5212, C5111 | CuZn5, CuZn15, CuZn35, CuZn36Pb3, CuZn40Pb2, CuSn10P1, CuSn5ZnPb, CuSn5Zn5Pb5 |
Cobalt-base Alloy | UMC50, 670, Grade 31 | 2.4778 |
Almost most of the ferrous and nonferrous metal and alloys could be cast by investment casting process. But, at our lost wax casting foundry, we mainly cast nickel base alloys, cobalt base alloys, carbon steel, alloy steel, stainless steel, super duplex stainless steel, gray cast iron, ductile cast iron, aluminium alloys and brass. Additionally, certain applications require the use of specialized other alloys used primarily in harsh environments. These alloys, such as Titanium and Vanadium, meet the additional demands that might not be achieved with standard Aluminum alloys. For example, Titanium alloys often are used to produce turbine blades and vanes for aerospace engines. Cobalt-base and Nickel-base alloys (with a variety of secondary elements added to achieve specific strength-strength, corrosion-strength and temperature-resistant properties), are additional types of cast metals.
• Carbon Steel: AISI 1020 - AISI 1060,
Investment Casting Technical Data at RMC Foundry |
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R & D | Software: Solidworks, CAD, Procast, Pro-e |
Lead Time for Development and Samples: 25 to 35 days | |
Molten Metal | Ferritic Stainless Steel, Martensitic Stainless Steel, Austenitic stainless steel, Precipitation Hardening Stainless Steel, Duplex Stainless Steel |
Carbon Steel, Alloy Steel, Tool Steel, Heat Resistant Steel, | |
Nickle-base Alloy, Aluminium Alloy, Copper-base Alloy, Cobalt-base Alloy | |
Metal Standard | ISO, GB, ASTM, SAE, GOST EN, DIN, JIS, BS |
Material for Shell Building | Silica Sol (Precipitated Silica ) |
Water Glass (Sodium Silicate) | |
Mixtures of Silica Sol and Water Glass | |
Technical Parameter | Piece Weight: 2 gram to 200 kilo gram |
Max Dimension: 1,000 mm for Diameter or Length | |
Min Wall Thickness: 1.5mm | |
Casting Roughness: Ra 3.2-6.4, Machining Roughness: Ra 1.6 | |
Tolerance of Casting: ISO8062; VDG P690, D1/CT5-7 | |
Tolerance of Machining: ISO 2768-mk/IT6 | |
Inner Core: Ceramic Core, Urea Core, Water Soluble Wax Core | |
Heat Treatment | Normalizing, Tempering, Quenching, Annealing, Solid Solution, Carburization. |
Surface Treatment | Polishing, Sand / Shot Blasting, Zinc Plating, Nickel Plating, Oxidation Treatment, Phosphating, Powder Painting, Geormet, Anodizing |
Dimension Testing | CMM, Vernier Caliper, Inside Caliper. Depth Gauge, Height Gauge, Go/No go Gauge, Special Fixtures |
Chemical Inspection | Chemical Compostion Analysis (20 chemical elements), Cleanliness Inspection, X-ray Radiographic Inspection, Carbon-Sulfur Analyser. 3.1 Material Certificate is Available |
Physical Inspection | Dynamic Balancing, Static Blancing, Mechanical Properties (Hardness, Yield Strength, Tensile Strength), Elongation |
Production Capacity | More than 250 tons per month, more than 3,000 tons annually. |