Stainless Steel Casting
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Widely used stainless steel casting - excellent functionality.
Stainless steel casting is done by injecting molten stainless steel material into a designed mold, and then cooled to form a specific shape of the final stainless steel casting product, depending on the form and function of the impractical mold, mainly including: investment casting, sand casting, gravity casting, etc..
Due to the internal components of stainless steel, such as: chromium, nickel, titanium, molybdenum, manganese, silicon, copper, nitrogen, phosphorus and other elements fusion, making stainless steel has a variety of corrosion resistance, wear resistance and other characteristics of metal materials, is widely used in a variety of industries important parts, is one of the indispensable metal materials of modern manufacturing.
Among all the casting processes, the most ideal stainless steel casting is investment casting , which is one of the precision casting processes to meet the needs and standards of almost all stainless steel casting parts, can quickly cast the surface finish, complex structure, economically competitive casting method.
Supro metal foundry is a stainless steel casting specialist from China.
China Supro casting foundry is an expert in stainless steel investment casting, specializing in stainless steel casting and molding for over 25 years, with extensive expertise and experience in producing highly corrosion resistant and aesthetically pleasing stainless steel cast parts. Whether you are a small business or a Fortune 500 company, we offer a range of technical support and fabrication services for small volume casting or large volume casting orders to perfectly address your needs.
We are an industry-leading stainless steel foundry with ISO 9001-2015 quality certification, professional mold engineers, casting experts, inspection teams and advanced casting equipment, offering value-added services including heat treatment, post-processing, and surface treatment to ensure superior quality and competitive factory-priced quotes.
Our stainless steel casting Services
With over 25 years of experience in stainless steel casting, investment casting is the ideal and most economical solution for stainless steel castings.
Silica sol investment casting
Supro MFG has advanced die casting manufacturing equipment to meet the needs of low pressure die casting and high pressure die casting products, we provide the most cost-effective on-demand die casting manufacturing solutions for buyers from all walks of life around the world, and through x-ray, composition analysis, Non-destructive testing, mechanical testing, salt spray testing, etc., to ensure on-time delivery of high-quality die-casting parts.
Water glass investment casting
relying on resin sand or green sand to form a cavity with the shape of the final product under the action of aluminum or steel molds, inject molten metal into the sand mold, and cool to form. Aluminum alloy sand casting is economical, but usually requires secondary machining to achieve close dimensional tolerances, and is also very effective for creating large aluminum alloy cast parts or parts with fine detail, suitable for large-scale casting projects.
At Supro casting foundry, we control the casting process and the element composition of the aluminum alloy reasonably to avoid most of the defect problems, enhance the mechanical properties, improve the casting efficiency, and make the aluminum alloy castings more competitive.
Advantages: high efficiency, low cost, economical, complex structure can be realized, suitable for a wide range of materials
Disadvantages: There are many sand holes and pores, and the surface is rough. It is impossible to build fine details.
What is stainless steel investment casting？
Using easily meltable material to create a model of the final product, wrapping multiple layers of special high temperature resistant coating in the outer layer, drying and hardening at high temperatures to form a cavity shell, injecting molten stainless steel solution into the cavity, and cooling to obtain the desired final stainless steel casting.
Stainless steel investment casting can create products with high accuracy (generally CT4 – CT6) and can meet the complex structure of turbines, impellers, valves, pipes and other stainless steel castings, but due to the shrinkage characteristics of the pre-model, it will affect the size of the cavity shell, thus affecting the final product dimensional accuracy.
Stainless steel investment casting is not only suitable for casting parts with complex structure, and for casting dimensional accuracy and surface quality are much better than other casting processes, even high temperature resistant, not easy to process the castings can rely on investment casting smoothly.
Advantages of investment casting in stainless steel.
At supro MFG, we rely on the stainless steel investment casting process to cast a variety of complex stainless steel casting products, including: 304, 316/316L, cf8m, 400 series, 17-4PH, 2205 and high temperature alloy castings, such as: hydraulic turbines, tableware, children’s toys, and even aircraft engine blades.
Not only can we meet the stringent requirements of surface finish, but also cast products with strict dimensional requirements, requiring only a small amount of polishing and other surface treatments to reduce machining costs and material costs as much as possible.
- Dimensional tolerance: ±0.3mm
- Weight: 15 g to 70 kg
- Surface: Ra1.6-Ra 3.2
- Tight tolerances (CT4 – CT6)
- Reliable process control and repeatability
- Flexibility in design and casting
- Efficient production
- Low cost tooling
Types of stainless steel castings
Each of these stainless steels has different proportions of iron, chromium, carbon, nickel, molybdenum, manganese or copper. The properties of these stainless steel castings vary depending on the content, making them a versatile group of alloys. The most popular are 304/304L stainless steel and 316/316L stainless steel.
- Ferritic stainless steels: 430, 444, 409
- Austenitic stainless steels: 304, 302, 303, 310, 316, 317, 321, 347
- Martensitic stainless steel: 420, 431, 440, 416
- Duplex stainless steel: 2304, 2205
304/304L stainless steel Investment Casting
Type 304 is the most versatile alloy in the stainless steel casting family. It is ideal for a variety of domestic and commercial applications. 304 has excellent corrosion resistance and is easy to machine and form. It can be used in a variety of domestic and commercial applications including: kitchen worktops, sinks, chemical containers, food processing equipment, automotive and aerospace applications, construction materials, architectural trim and molding, etc. (304L is very similar to 304 alloy, the difference being that 304 alloy has a maximum carbon content of 0.08% compared to 0.03% for 304L. (The “L” can be interpreted as low carbon.)
316/316L stainless steel Investment Casting
Compared with investment casting 316 stainless steel castings, 316L stainless steel castings in the molybdenum makes it higher corrosion resistance. Atmospheric corrosion resistance, excellent resistance to intergranular corrosion under welding conditions (casting 316 stainless steel properties). At high temperatures, 316 stainless steel castings have higher creep and tensile strength. Commonly used in paper industry, chemical and textile processing equipment, furnace components, etc.
410 stainless steel Investment Casting
410 is a chromium martensitic stainless steel that can be heated to obtain a wide range of mechanical properties. Stainless steel casting 410 has high strength, hardness and corrosion resistance. It is easy to expand and form. In addition, it is magnetic in all cases. It is commonly used in tableware, petroleum refining, petrochemical processing, and marine environments.
416 stainless steel Investment Casting
Alloy 416 series is a high chromium martensitic free-cutting stainless steel. It is strong and easy to machine. 416 type stainless steel castings can be used for shafts, gears, valves, screws, etc. It is not recommended for vessels holding high pressure gases or liquids.
17-8ph stainless steel Investment Casting
17-4 ph investment casting is an age-hardened martensitic stainless steel with high strength and corrosion resistance. Hardening can be achieved after a simple low temperature treatment. 17-4 ph investment casting has high tensile strength, hardness, oxidation resistance and good creep stress fracture properties at elevated temperatures. Compared to conventional martensitic stainless steels, 17-4 ph investment casting is easier to weld. All these properties make it widely used in oil, gas, aerospace and other fields.
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