Stainless Steel include austenitic stainless steel martensitic stainless steel and ferric stainless steel. this material is suitalbe to sand casting and investment casting method.
Austenitic steels have austenite as their primary phase (face centered cubic crystal). These are alloys containing chromium and nickel (sometimes manganese and nitrogen), structured around the Type 302 composition of iron, 18% chromium, and 8% nickel. Austenitic steels are not hardenable by heat treatment. The most familiar stainless steel is probably Type 304, sometimes called T304 or simply 304. Type 304 surgical stainless steel is an austenitic steel containing 18-20% chromium and 8-10% nickel.
The characteristic orthorhombic martensite microstructure was first observed by German microscopist Adolf Martens around 1890. Martensitic steels are low carbon steels built around the Type 410 composition of iron, 12% chromium, and 0.12% carbon. They may be tempered and hardened. Martensite gives steel great hardness, but it also reduces its toughness and makes it brittle, so few steels are fully hardened.
Ferritic steels have ferrite (body centered cubic crystal) as their main phase. These steels contain iron and chromium, based on the Type 430 composition of 17% chromium. Ferritic steel is less ductile than austenitic steel and is not hardenable by heat treatment.
There are also other grades of stainless steels, such as precipitation-hardened, duplex, and cast stainless steels. Stainless steel can be produced in a variety of finishes and textures and can be tinted over a broad spectrum of colors
As professinal supplier of castings in China, we have spectrum and electric furnace to make stainless steel castings. The mainly methods are sand casting and investment casting.
We serve and supply parts, components and products to wide varieties of industries as follow:
1. Valve fittings (valve body, wheel, disc, bonnet and others)
2. Pump Parts (Body, impeller and others)
3. Fastener (Bolt, nut, stud and gasket)
4. Automobile/Motorcycle (drum, bracket, steering knuckle housing, transmission housing, rear wheel hub)
5. Pipe Fittings (malleable iron fittings, threaded stainless steel fittings, ductile iron fittings and others)
6. Steel anchor products.
7. Food Processing.
8. Computer and communication Hardware.
9. Sporting Equipment.