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Stainless Steel Investment Castings

Stainless Steel Investment Castings

Material: Stainless Steel CF8M (1.4408)
Process: Investment Casting + CNC Machining
Weight: 15.10 kg
Application: Open Impeller for Centrifugal Pump
Heat Treatment: Solid Solution

Stainless steel investment castings with CNC machining services in China lost wax investment casting foundry

Description

Stainless steel investment castings from China foundry

Stainless steel has a minimum chromium content of 10.5%, making it more resistant to corrosive liquid environments and to oxidation. It is highly corrosion resistant and wear resistant, provides excellent machinability, and is well-known for its aesthetic appearance. Stainless steel investment castings are "corrosion-resistant" when used in liquid environments and vapors below 1200°F (650°C) and "heat-resistant" when used above this temperature. The base alloy elements of any nickel-base or stainless steel investment casting are chromium, nickel, and molybdenum (or "moly"). These three components will determine the casting's grain structure and mechanical properties and will be instrumental in the casting's ability to combat heat, wear, and corrosion.


Commonly, the stainless steel should be cast by the investment precision casting process with the silica sol as the bond. The stainless steel silica sol castings have a very high grade of precision surface and performance.

Due to its unique physical properties, stainless steel castings are popular in a wide range of applications, especially those in harsh environments. Common markets for stainless steel investment castings include oil and gas, fluid power, transportation, hydraulic systems, food industry, hardware and locks, agriculture...etc.


Investment Casting Material Capabilities at RMC Foundry

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.

The investment casting is also called precision casting because it have much better surface and higher accuracy than any other casting process. Especially for the silica sol casting process, the finished castings could reach the CT3 ~ CT5 in geometrical casting tolerance and CT4 ~ CT6 in dimensional casting tolerance. For the casings produced by investment, there will be less or even no need to make the machining processes. To some extent, the investment casting could replace the rough machining process.


Investment Casting Technical Data at RMC Foundry

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.

stainless steel pump cover