Stainless steel
446 stainless steel is a ferritic grade known for its excellent high-temperature oxidation resistance and good corrosion resistance. It contains a high chromium content, which enhances its ability to withstand elevated temperatures, making it suitable for applications in harsh environments. 446 has moderate strength and is often used in furnace applications, heat exchangers, and automotive exhaust systems. Its resistance to scaling and ability to maintain mechanical properties at high temperatures make it ideal for high-heat applications.
| Component | Content (%) |
|---|---|
| Chromium (Cr) | 23.0 – 27.0 |
| Nickel (Ni) | ≤ 0.6 |
| Carbon (C) | ≤ 0.20 |
| Silicon (Si) | ≤ 1.00 |
| Manganese (Mn) | ≤ 1.00 |
| Phosphorus (P) | ≤ 0.04 |
| Sulfur (S) | ≤ 0.03 |
| Iron (Fe) | Balance |
| Physical Property | Value |
|---|---|
| Density | 7.7 g/cm³ |
| Melting Point | 1420 – 1500 °C |
| Thermal Conductivity | 25.0 W/(m·K) |
| Specific Heat Capacity | 460 J/(kg·K) |
| Mechanical Properties | |
| Yield Strength | ≥ 210 MPa |
| Tensile Strength | ≥ 450 MPa |
| Ductility | ≥ 25% |
Product Description:
| Standards: | ASTM A312, GB,ASTM,ASME,EN,JIS,DIN,BS,ISO |
| Grade : | 200series: 201J1,J2,J3,J4 202, 202cu, 204;
300series: 301, 302, 303, 304, 314,304L, 309, 309s, 310, 310S, 316, 316L, 316Ti, 317L, 321, 347; 400series: 409, 409L, 410, 410S,420, 430, 431, 440A,440B, 440C; Others: 330, 660, 630, 631, 17-4ph, 17-7ph, S31803 ,904L, etc. Duplex : (S31803, S22053, S25073, S22253, S32205, S32304; 2205, 2507) And others etc… |
| Surface: | HairLine,Brush,Polished,Pickled Annealed,Bright,&Customized |
| OutDiameter: | 6-1500mm |
| Thickness: | 0.3-20mm |
| Length : | 2500mm,3000mm,4000mm,6000mm,12000mm&Customized. |
| Tolerance: | As per standard ISO |
| Shape: | Round,Square,Rectangular |
| End: | BE,PE, Chamfering. |
| Processing: | Welded,EFW,ERW,Seamless,Hollow,Forged. |
| Loading Port: | Shanghai or any port in China. |
| Packing: | Bundled,wooden box , seaworthy packing or Customized. |
| Payment Term: | T/T , LC, Credit Card, other negotiable |
| Trade Terms | EXW, FOB,CFR,CIF,FCA,CPT,DDU etc. |
| MOQ | 1000kgs Customized Products |
| Delivery time | 15-25days based on processing and stocks. |
Type of Stainless Steel:
Stainless steel is divided into austenitic stainless steel, ferritic stainless steel, martensitic stainless steel, and duplex stainless steel according to the structure state.
Austenitic Stainless Steel
stainless steel with an austenitic structure at room temperature. Steel contains Cr≈18%, Ni≈8%-25% and C≈0.1%. Steel has high toughness and plasticity, but low strength.
Martensitic Stainless Steel
A steel whose mechanical properties can be adjusted by heat treatment. It has different strength and toughness at different tempering temperatures.
Duplex Stainless Steel
Austenitic and ferrite each account for about half of the structure. When the C content is low, 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
Ferritic Stainless Steel
It contains 15% to 30% chromium and has a body-centered cubic crystal structure. This type of steel generally does not contain nickel, and sometimes contains a small amount of Mo, Ti, Nb and other elements. This type of steel has the characteristics of large thermal conductivity, small expansion coefficient, good oxidation resistance, and excellent stress corrosion resistance.
| Austenitic Stainless Steel | 201, 301, 304, 305, 310, 314, 316, 321, 347, 370, etc |
| Martensitic Stainless Steel | 410, 414, 416, 416, 420, 431, 440A, 440B, 440C, etc |
| Duplex Stainless Steel | S31803, S32101, S32205, S32304, S32750, etc |
| Ferritic Stainless Steel | 429, 430, 433, 434, 435, 436, 439, etc |
Product Presentation:
Packing:
Application:
Stainless steel are widely used across various industries and fields due to their excellent corrosion resistance, strength, workability, and aesthetic appeal. Below are the main uses of stainless steel profiles:
1. Construction and Structural Applications
2. Industrial and Mechanical Manufacturing
3. Automotive and Transportation
4. Medical Equipment and Food Processing
5. Household and Consumer Products
6. Energy and Power
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