Stainless Steel, Length : 3000-4000mm, 2000-3000mm

It is a low-carbon high-nickel, molybdenum austenitic acid-resistant stainless steel, the introduction of french h • s proprietary material. Has a good active - passive transition ability, excellent corrosion resistance. In non-oxidizing acid, such as sulfuric acid, acetic acid, formic acid, phosphoric acid has good corrosion resistance, good resistance to pitting corrosion resistance in chloride ions medium. Also has good resistance to crevice corrosion and stress corrosion resistance. Good corrosion resistance in various concentrations of sulfuric acid below 70℃, resistance to any concentration in the atmospheric pressure, any temperature of acetic acid and formic acid and acetic acid mixture.
Main components: 20cr-24ni-4.3mo-1.5cu
grades and standards: uns n08904, din1.4539, astm a240, us890l.
physical and mechanical properties:
density: 8.24g/cm3.
tensile strength: σb≥ 520mpa.
elongation: δ≥35%.
Supporting welding: electrode (e385-16/17), wire (er385).
904l applications are: petroleum, petrochemical equipment, such as petrochemical facilities in the reactors. Sulfuric acid storage and transport equipment, such as heat exchangers. Power plant gas desulfurization equipment, main application areas are: the absorber tower, stack, file doors, trim, spray systems.
organic acids in the scrubber system and fan. Water treatment plant, sea water heat exchangers, paper industry equipment, sulfuric acid, nitric acid equipment, the pharmaceutical industry and other chemical equipment, pressure vessels, food and equipment.