Cast Alloy Steel Investment Castings with OEM Custom and CNC Machining Services in China Foundry
Carbon steel, low alloy steel, and tool steel castings are used in several industrial applications and environments. With their numerous grades, steel and their alloys can be heat-treated to improve its yield and tensile strength; and, adjust hardness or ductility to the engineer's application needs or desired mechanical properties.
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Investment Casting Material Capabilities at RMC Foundry |
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| Martensitic Stainless Steel | 100 Series: ZG1Cr13, ZG2Cr13 and more |
| Ferritic stainless steel | 200 Series: ZG1Cr17, ZG1Cr19Mo2 and more |
| Austenitic stainless steel | 300 Series: 304, 304L, CF3, CF3M, CF8M, CF8, 1.4304, 1.4401...etc. |
| Duplex Stainless Steel | 400 Series: 1.4460, 1.4462, 1.4468, 1.4469, 1.4517, 1.4770; 2205, 2507 |
| Precipitation Hardening Stainless Steel | 500 Series: 17-4PH, 15-5PH, CB7Cu-1; 1.4502 |
| Carbon Steel | C20, C25, C30, C45; A216 WCA, A216 WCB, |
| Low Alloy Steel | IC 4140, IC 8620, 16MnCr5, 42CrMo4 |
| Grey Cast Iron & Ductile Cast Iron | GG15 ~ GG35; EN-GJL-150 ~ EN-GJL-250; GGG40 ~ GGG80; EN-GJS-400 ~ EN-GJS-800 |
| Super Alloy and Special Alloys | Heat Resistant Steel, Wear Resistant Steel, Tool Steel, |
| Aluminum Alloy | A355, A356, A360, A413 |
| Copper Alloy | Brass, Bronze. C21000, C23000, C27000, C34500, C37710, C86500, C87600, C87400, C87800, C52100, C51100 |
| RMC can meet material specification acc. to ASTM, SAE, AISI, ACI, DIN, EN, ISO, GB standards. | |
▶ Ferrous and Non-ferrous Materials for Investment Casting:
Gray Iron: HT150, HT200, HT250, HT300, HT350; GJL-100, GJL-150, GJL-200, GJL-250, GJL-300, GJL-350; GG10~GG40.
Ductile Iron (Nodular Iron): GGG40, GGG50, GGG60, GGG70, GGG80; GJS-400-18, GJS-40-15, GJS-450-10, GJS-500-7, GJS-600-3, GJS-700-2, GJS-800-2; QT400-18, QT450-10, QT500-7, QT600-3, QT700-2, QT800-2;
Carbon Steel; AISI 1020; - AISI 1060, C30, C40, C45.
Alloy Steel: ZG20SiMn, ZG30SiMn, ZG30CrMo, ZG35CrMo, ZG35SiMn, ZG35CrMnSi, ZG40Mn, ZG40Cr, ZG42Cr, ZG42CrMo...etc on request.
Stainless Steel: AISI 304, AISI 304L, AISI 316, AISI 316L, 1.4401, 1.4301, 1.4305, 1.4307, 1.4404, 1.4571 and other stainless steel grade.
Brass, Red Copper, Bronze or other Copper-based alloy metals: ZCuZn39Pb3, ZCuZn39Pb2, ZCuZn38Mn2Pb2, ZCuZn40Pb2, ZCuZn16Si4
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
▶ 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.
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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. |
Precision Cast Alloy Steel Investment Casting Parts
RMC manufactures precision investment cast metal parts that consistently meet or exceed customer expectations. Lost wax investment casting allows us to produce metal parts as small as tens of grams and as large as tens of kilograms, in a wide range of ferrous and non-ferrous alloys and with exceptional dimensional accuracy.
The lost wax casting process produces near-net-shape precision metal parts that often require little or no additional machining. The resulting finish is also much better than what is achievable through other processes. The strength and durability of the casting parts make themselves ideal for high wear-resistance applications requiring millions of cycles.
RMC Investment Casting Foundry offers
Valve and Pipeline Castings
Manifolds Castings
Hydaulic Castings
Precision Medical castings
Truck Castings
Loctomotive Castings
Railway Trains castings
Whether we're casting small metal parts in carbon steel or large, intricate shapes in specialty non-ferrous alloys, RMC can deliver precision metal cast parts that perfectly match your designs and usage. We offer design assistance, as needed, to help improve both your part's function and its manufacturability. From the simplest shape to the most complex geometry, we can turn your designs into reality.
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