Steel Investment Casting Foundry in China
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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 Metals for Investment Casting:
• 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 & Copper.
• Other Materials and Standards on request
▶ 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 Investment Casting 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 Investment 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.
▶ Why You Choose RMC for Steel Investment Castings?
• Full solution from one single supplier ranging customized pattern design to finished castings and secondary process including 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.
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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. |
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