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Stainless Steel

Stainless steel plate
  • Stainless steel plate

Stainless steel plate

The stainless steel plate has a smooth surface, high plasticity, toughness and mechanical strength, and is resistant to corrosion by acids, alkaline gases, solutions and other media. It is an alloy steel that is not easy to rust, but it is not absolutely rust-free.
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Overview of stainless steel plate:

Stainless steel plate is generally a general term for stainless steel plate and acid-resistant steel plate. Coming out at the beginning of this century, the development of stainless steel plates laid an important material and technological foundation for the development of modern industry and technological progress. There are many kinds of stainless steel plates and steel plates with different properties. It has gradually formed several major categories in the development process. According to the organizational structure, it is divided into four categories: austenitic stainless steel plate, martensitic stainless steel plate (including precipitation hardened stainless steel plate), ferritic stainless steel plate, and austenitic plus ferritic duplex stainless steel plate. According to the steel plate The main chemical composition or some characteristic elements in the steel plate are classified into chromium stainless steel plate, chromium nickel stainless steel plate, chromium nickel molybdenum stainless steel plate and low carbon stainless steel plate, high molybdenum stainless steel plate, high purity stainless steel plate and so on. According to the performance characteristics and use of the steel plate, it is divided into nitric acid resistant stainless steel plate, sulfuric acid resistant stainless steel plate, pitting corrosion resistant stainless steel plate, stress corrosion resistant stainless steel plate, high-strength stainless steel plate, etc. According to the functional characteristics of the steel plate, it is divided into low temperature stainless steel plate, non-magnetic stainless steel plate, free-cutting stainless steel plate, superplastic stainless steel plate and so on. The commonly used classification method is based on the structural characteristics of the steel plate and the chemical composition of the steel plate, as well as the combination of the two. Generally divided into martensitic stainless steel plate, ferritic stainless steel plate, austenitic stainless steel plate, duplex stainless steel plate and precipitation hardening stainless steel plate, etc. or divided into two categories: chromium stainless steel plate and nickel stainless steel plate. It has a wide range of uses. Typical uses: heat exchangers for pulp and papermaking equipment, machinery and equipment, dyeing equipment, film washing equipment, pipelines, exterior materials for buildings in coastal areas, etc.

Application of stainless steel plate:

What are the uses of stainless steel plates?

The purpose of stainless steel: In layman's terms, stainless steel is steel that is not easy to rust. In fact, some stainless steels have both rust resistance and acid resistance (corrosion resistance). The rust resistance and corrosion resistance of stainless steel are due to the formation of a chromium-rich oxide film (passivation film) on its surface. This kind of rust resistance and corrosion resistance are relative. Tests have shown that the corrosion resistance of steel in weak media such as the atmosphere and water and oxidizing media such as nitric acid increases with the increase of the chromium water content in the steel. When the chromium content reaches a certain percentage, the corrosion resistance of the steel occurs. Sudden change, that is, from easy to rust to not easy to rust, from not resistant to corrosion. There are many ways to classify stainless steel. According to the organization structure at room temperature, there are martensitic, austenitic, ferritic and duplex stainless steels; according to the main chemical composition, it can be basically divided into two major systems: chromium stainless steel and chromium nickel stainless steel; divided by purpose There are nitric acid-resistant stainless steel, sulfuric acid-resistant stainless steel, seawater-resistant stainless steel, etc. According to the corrosion resistance type, it can be divided into pitting corrosion resistant stainless steel, stress corrosion resistant stainless steel, intergranular corrosion resistant stainless steel, etc.; according to the functional characteristics, it can be divided into none Magnetic stainless steel, free-cutting stainless steel, low-temperature stainless steel, high-strength stainless steel, etc. Because stainless steel has excellent corrosion resistance, formability, compatibility, and toughness in a wide temperature range, it has been widely used in heavy industry, light industry, daily necessities industry, building decoration and other industries. .

Austenitic stainless steel

Stainless steel with austenitic structure at room temperature. When the steel contains about 18% Cr, 8%-10% Ni, and about 0.1% C, it has a stable austenite structure. Austenitic chromium-nickel stainless steel includes the famous 18Cr-8Ni steel and the high Cr-Ni series steel developed by adding Cr and Ni content and adding Mo, Cu, Si, Nb, Ti and other elements on this basis. Austenitic stainless steel is non-magnetic and has high toughness and plasticity, but its strength is low. It is impossible to strengthen it through phase transformation. It can only be strengthened by cold working. If S, Ca, Se, Te and other elements are added, it has good machinability. In addition to resistance to oxidizing acid media corrosion, this type of steel can also be resistant to corrosion by sulfuric acid, phosphoric acid, formic acid, acetic acid, urea, etc. if it contains elements such as Mo and Cu. If the carbon content in this type of steel is less than 0.03% or contains Ti and Ni, its resistance to intergranular corrosion can be significantly improved. High-silicon austenitic stainless steel with concentrated nitric acid has good corrosion resistance. As austenitic stainless steel has comprehensive and good comprehensive properties, it has been widely used in various industries.

Ferritic stainless steel

The stainless steel whose structure is mainly ferrite in use. The chromium content is between 11% and 30%, and it has a body-centered cubic crystal structure. This kind of steel generally does not contain nickel, and sometimes also contains a small amount of Mo, Ti, Nb and other elements. This kind of steel has the characteristics of large thermal conductivity, small expansion coefficient, good oxidation resistance, and excellent stress corrosion resistance. It is mostly used to make atmospheric resistance. , Water vapor, water and oxidizing acid corroded parts. This type of steel has disadvantages such as poor plasticity, significantly reduced plasticity and corrosion resistance after welding, which limits its application. The application of out-of-furnace refining technology (AOD or VOD) can greatly reduce interstitial elements such as carbon and nitrogen, so this type of steel is widely used.

Austenitic-ferritic duplex stainless steel

It is a stainless steel with austenite and ferrite structure each accounting for about half. In the case of low C content, the Cr content is 18% to 28%, and the Ni content is 3% to 10%. Some steels also contain alloying elements such as Mo, Cu, Si, Nb, Ti, and N. This type of steel has the characteristics of austenitic and ferritic stainless steel. Compared with ferrite, it has higher plasticity and toughness, no room temperature brittleness, and significantly improved intergranular corrosion resistance and welding performance, while still maintaining iron The 475℃ brittleness, high thermal conductivity, and superplasticity of element stainless steel. Compared with austenitic stainless steel, it has high strength and significantly improved resistance to intergranular corrosion and chloride stress corrosion. Duplex stainless steel has excellent pitting corrosion resistance and is also a nickel-saving stainless steel.

Martensitic stainless steel

The stainless steel whose mechanical properties can be adjusted by heat treatment is, in layman's terms, a kind of hardenable stainless steel. Typical grades are Cr13 type, such as 2Cr13, 3Cr13, 4Cr13, etc. The hardness is higher after pure fire, and different tempering temperatures have different strength and toughness combinations. They are mainly used for steam turbine blades, tableware, and surgical instruments. According to the difference in chemical composition, martensitic stainless steel can be divided into martensitic chromium steel and martensitic chromium-nickel steel. According to the different structure and strengthening mechanism, it can be divided into martensitic stainless steel, martensitic and semi-austenitic (or semi-martensitic) precipitation hardening stainless steel and maraging stainless steel.

Chromium nickel molybdenum stainless steel

Stainless steel with chromium, nickel, and molybdenum as the main alloying elements. For example, 00Cr17Ni14Mo2, 00Cr19Ni13Mo3, 0Cr18Ni16Mo5, etc. are austenitic stainless steels, and 0Cr26Ni5Mo2 is austenitic-ferritic stainless steel. Chromium-nickel-molybdenum stainless steel is resistant to both oxidizing media corrosion and reducing media corrosion; it is resistant to uniform corrosion and localized corrosion. Chromium is the basic element for the corrosion resistance of stainless steel. Chromium is advantageous in resisting general corrosion, pitting corrosion and crevice corrosion, and is advantageous in resisting intergranular corrosion and stress corrosion; while molybdenum is advantageous in resisting general corrosion, and is extremely advantageous in resisting pitting corrosion and crevice corrosion. The combination of chromium and molybdenum greatly improves the corrosion resistance of stainless steel. Nickel is the most effective element to improve the toughness of stainless steel.

Stainless steel plate price:

The price of stainless steel plate will vary randomly with factors such as the production cost, transportation cost, international situation, exchange rate, and supply-demand relationship of stainless steel pipe. Tianji New Materials Co., Ltd. aims to help various industries and chemical wholesalers find high-quality, low-cost nanomaterials and chemical products by providing a full set of customized services. If you are looking for stainless steel plate, please feel free to send an inquiry to get the latest price of stainless steel plate. The company provides various types and specifications of stainless steel plates, which can be customized according to customer needs.

Stainless Steel Plate Supplier:

As a global stainless steel plate supplier, Tanji New Materials Co., Ltd. has extensive experience in the performance, application and cost-effective manufacturing of advanced engineering materials. The company has successfully developed a series of stainless steel products (stainless steel tubes, stainless steel rods, stainless steel wires, etc.), as well as some high-purity targets, functional ceramics and structural devices, and provides OEM services.


Hot Tags: Stainless steel plate, manufacturers, suppliers, factory, Customized

1. 316 stainless steel: particularly good corrosion resistance and high temperature strength, can be used under harsh conditions, good work hardening, non-magnetic. Suitable for seawater equipment, chemistry, dyes, papermaking, oxalic acid, fertilizer production equipment, photography, food industry, coastal facilities, etc. 2. 316L stainless steel: Mo (2-3%) is added to the steel, so it has excellent corrosion resistance and high temperature strength; SUS316L has a lower carbon content than SUS316, so it has better intergranular corrosion resistance than SUS316; high temperature creep strength. It can be used under harsh conditions, with good work hardening and non-magnetic. Suitable for seawater equipment, chemistry, dyes, papermaking, oxalic acid, fertilizer production equipment, photography, food industry, coastal facilities, etc. 3. 304 stainless steel: has good corrosion resistance, heat resistance, low temperature strength and mechanical properties, stamping and bending Good thermal workability, no heat treatment hardening phenomenon, non-magnetic

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