ASTM Standards Stainless Steel Surface Treatment For Exterior Wall Decoration

The finish of stainless steel refers to the surface treatment applied to the material, which affects its appearance, corrosion resistance, and suitability for specific applications.

Common stainless steel finishes include No. 1 (hot-rolled, dull), No. 2D (cold-rolled, smooth), No. 2B (cold-rolled, bright), bright annealed (reflective), No. 3 (polished with linear texture), No. 4 (general-purpose polished), No. 6 (dull satin), No. 7 (high luster), No. 8 (mirror finish), and TR (cold-worked to enhance properties).

About us:

Wuxi Xinfengcheng Metal Products Co., Ltd. was established in 2003 and is headquartered in Wuxi City, Jiangsu Province, an important gathering place for China's stainless steel industry. The company focuses on the research and development, production and sales of stainless steel materials. With "seamless steel pipes" as its core products, it is committed to providing high-performance and high-standard metal material solutions for the global industrial field.

1. Product system
The company mainly sells 304, 316L, 310S, duplex steel (2205/2507) and other series of stainless steel seamless pipes, covering the following specifications:
- Outer diameter range: 6mm to 1030mm
- Wall thickness range: 0.5mm to 100mm
- Implementation standards: GB/T 14976 (national standard), ASTM A312 (American standard), EN 10216 (European standard), etc.

2. Technical advantages
Production process
The "hot rolling + cold drawing/cold rolling" composite process is adopted, combined with post-process technologies such as solution treatment, pickling and passivation to ensure that the product has:
- High strength: tensile strength ≥520MPa, elongation ≥35%;
- Corrosion resistance: passed the SSC (hydrogen sulfide stress corrosion) test, suitable for extreme environments;
- Precision size: tolerance control up to ±0.5mm, meeting the needs of high-end equipment manufacturing.