**4L Stainless Steel Plate 

 **4 seamless stainless steel pipe 

stainless steel rod **0f 

 We are a professional supplier of hot rolled alloy **4L stainless steel plates, coils and cold rolled alloy **4L stainless steel sheets and rolls with various size in plain and embossed patterns in China.

 

       Product UNS N****4/**4L stainless steel bar **6

Finish 2B, No.1, 1D

Thickness 1.0mm**0mm

Standard Width ***0mm/***0mm/***0mm/***0mm

Standard Length ***0mm/***0mm/***0mm/***0mm/Coil

Standard ASTM A**0M/A**0M, JIS G***4, JIS G***5, EN ****8/3

Grade **4L/UNSN****4

General Properties 

 Alloy **4L (UNS N****4) is a superaustenitic stainless steel that is designed for moderate to high corrosion resistance in a wide range of process environments. The combination of high chromium and nickel content, coupled with additions of molybdenum and copper, assure good to excellent corrosion resistance. 

 With its highly alloyed chemistry — *5% nickel and 4.5% molybdenum, **4L provides good chloride stress corrosion cracking resistance, pitting and general corrosion resistance superior to **6L and **7L molybdenum enhanced stainless steels. 

 Alloy **4L was originally developed to withstand environments containing dilute sulfuric acid. It also offers good resistance to other inorganic acids such as hot phosphoric acid as well as most organic acids.

stainless steel rod **3 is easily welded and processed by standard shop fabrication practices. 

 Corrosion Resistance 

 The high content of alloying elements in **4L gives the alloy exceptionally good resistance to uniform corrosion. 

 **4L was originally developed to withstand environments containing dilute sulfuric acid, and is one of the few stainless steels that, at temperatures up to *5°F (*5°C), provides full resistance in such environments within the entire concentration range of 0 to **0%. **4L also offers good resistance to a number of other inorganic acids, such as phosphoric acid and most organic acids. However, acids and acid solutions containing halide ions can be very aggressive, and the corrosion resistance of **7L, **7LMN and **4L may be insufficient. 

 Fractional distillation of tall oil often needs better material than **6L or even the more frequently used **7LMN. In these hot concentrated caustic solutions, the corrosion resistance is mainly determined by the nickel content of the material. With a nickel content of *5%, **4L has proven to be a good alternative to most conventional stainless steels. 

 Conventional stainless steels such as **4L and **6L are susceptible to chloride stress corrosion cracking (SSC) under certain conditions. Resistance to SSC increases with the increased content of nickel and molybdenum. Therefore, the higher performance austenitic stainless steels such as **4L have very good resistance to SSC. The table in the upper right corner shows resistance to SSC in a chloride solution under evaporative conditions. High performance austenitic steels and **1 stainless steel rod clearly outperform **6L. 

 Our service: The company has equipped with many international standard stainless steel processing facilities such as: Coil Leveling Machine, Edge Slitting Machine, Precision Water Jet Cutting Machine, Laser Cutting Machine, HL, NO.4 and 8K Polishing Machine, Embossing Machine and Bending Machine. Based on our large stock and advanced processing equipment, we can provide professional products and service for you with competitive price.