advantages

1. High strength, stable quality of steel plate;

2. Good corrosion resistance, longer durable than ordinary steel;

3. Processed at room temperature, easy to plastic machining;

4. Beautiful surface and diverse use possibilities;

5. High cleanliness and finish;

6. Good welding performance;

7. Good thermal expansion performance and insulation performance;

8 process performance is good, can be made into a lot of materials, the most prominent is 304 stainless steel, made into a variety of products.

type

Stainless steel is often divided into: martensitic steel, ferrite steel, austenitic steel, austenite-ferrite (duplex) stainless steel, and so on. Let me introduce these stainless steel.

Ferritic stainless steel:

Containing chromium 15% ~ 30%. Its corrosion resistance, toughness and weldability with chromium content increases with the increase of chloride stress corrosion resistance is superior to other types of stainless steel, this kind of steel to withstand atmosphere, nitric acid and corrosion of the brine solution, and has good high temperature oxidation resistance, low thermal expansion coefficient, etc, used in nitric acid and food factory equipment, also can make work under high temperature parts, such as gas turbine parts, etc.

Austenitic stainless steel:

Chromium is more than 18%, but also contains about 8% nickel and a small amount of molybdenum, titanium, nitrogen and other elements. Good comprehensive performance, can withstand a variety of media corrosion. This kind of steel has good plasticity and toughness, weldability and corrosion resistance and non-magnetic or weak magnetic, the corrosion resistance in oxidizing and reducing medium are good, used to make acid equipment, such as corrosion resistant containers and equipment lining, pipelines, nitric acid resistant equipment parts, etc., also can be used as the main body of watches and clocks jewelry stainless steel material.

Austenite-ferrite duplex stainless steel:

It has the advantages of austenite and ferritic stainless steel, and has superplasticity. Stainless steel with austenitic and ferritic structures of about half each. This kind of steel has the characteristics of austenite and ferritic stainless steel, compared with ferritic, higher plasticity, toughness, no room temperature brittleness, intergranular corrosion resistance and welding performance are significantly improved, but also maintain the 475℃ brittleness of ferritic stainless steel and high thermal conductivity, with superplasticity and other characteristics.

Martensitic stainless steel:

Because of the high carbon content, it has high strength, hardness and wear resistance, but the corrosion resistance is slightly poor, used in some parts with high mechanical properties and general corrosion resistance requirements, such as springs, steam turbine blades, hydraulic press valves, etc.