443 Stainless Steel Pipe SUS443 Welded Tube with Corrosion Resistance High Chromium Content and Excellent Formability
443 stainless steel is a ferritic alloy composed primarily of chromium and titanium, with extremely low carbon content. This unique composition provides exceptional corrosion resistance, particularly against moisture and salt environments.
While most ferritic alloys typically offer less durability than austenitic alloys, the high chromium content in 443 stainless steel makes it at least as corrosion-resistant as 304 stainless steel. Additionally, 443 exhibits lower thermal expansion than 304, resulting in reduced stress and warping under heat conditions.
Note that 443 stainless steel is magnetic due to its high chromium content, but this does not indicate lower quality. Chromium remains one of the most corrosion-resistant metals available.
443 Stainless Steel represents a new generation of ferritic stainless steels with excellent rust resistance and superior formability. By reducing carbon content while increasing chromium and adding titanium, this material achieves properties comparable to 304 grade stainless steel, offering a cost-effective alternative across numerous applications.
| Item | Standard | Finish | Thickness (mm) | Width (mm), Master Coil Sizes | Remark |
|---|---|---|---|---|---|
| 443 Stainless Steel Coil | ASTM JIS GB | No.1 (1D) | 3.0~8.0 | 1000 | 1219 | 1250 | 1500 | 1800 | 2000 | 1. Cut length up to 12 meters |
| 2B, 2D | 0.4~3.0 | 1000 | 1219 | 1250 | 1500 | 1800 | 2000 |
- Magnetic, ferritic stainless steel without nickel and molybdenum, but with high chromium content
- High inter-granular corrosion resistance with excellent formability and weldability
- Excellent pitting and crevice corrosion resistance with good thermal stability
- Elevators and escalators
- Home electrical appliances
- Automotive components
- Water tanks
- Roasters
- Kitchen equipment
| GRADE | C | Mn | P | S | Si | Cr | Ni | Mo | N | Others |
|---|---|---|---|---|---|---|---|---|---|---|
| 443 | 0.025 | 1.0 | 0.04 | 0.03 | 1.0 | 20.0-23.0 | 0.5 | - | 0.025 | (Ti+Cb)83(C+N) min, 0.80 max. Cu: 0.3-0.8 |
| Finish Type | Description | Applications |
|---|---|---|
| NO.2B | Luster > NO.2D | After NO.2D treatment, a light cold roll is carried out after polishing roller | The general material |
| BA | Bright | Nonstandard, but usually bright annealed surface finish with high surface reflectivity | Building materials, kitchen utensils |
| NO.4 | Intermediate grinding | A polished surface obtained by grinding with a abrasive strip 150~180# | Building materials, kitchen utensils |
- Pipes covered with wooden plates for protection during transportation
- All pipes loaded in strong wooden packages
- Every carton loaded with proper shoring and strengthening
- Container loading pictures taken and container sealed
We are a leading manufacturer and exporter of metal materials, operating as a modern comprehensive service enterprise specializing in the production and processing of stainless steel, carbon steel, alloy steel, non-ferrous metals, and metal products.
Our facilities include world-class processing equipment, a modernized physical and chemical testing center, and comprehensive processing platforms for opening flat, cutting, surface treatment, molding, sheet metal, welding, and machining. With factories in Jiangsu, we meet the comprehensive demands of each customer.
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