Xinhairunda Steel Trade Co. Ltd. - Steel & Steel Products

High strength, good toughness and good overall and partial resistance to stress corrosion. The yield strength of 2205 duplex stainless steel is twice of austenitic stainless steel, this allows designers to reduce weight in designing products. It has high corrosion resistance, lower thermal expansion coefficient and high thermal conductivity, particularly suitable for -50 F/ +600F temperature range.

chemical composition:c: 0.17 0.24, si: 0.17 0.37, mn: 0.40 0.70, s: 0.035 p: 0.035, cr: 0.80 1.10, ni: 0.030, cu: 0.030, mo: 0.15 0.25 mechanical properties:tensile strength b (mpa): 885 (90)yield strength s (mpa): 685 (70)elongation 5 (%): 12reduction of area (%): 50impact energy akv (j): 78impact toughness kv (j/cm2): 98 (10)hardness: 197hbsample size: 15mmheat treatment specification: quenching 880 , water, oil cooling; tempering 500 , water, oil cooling.

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-1.5cugrades and standards: uns n08904, din1.4539, astm a240, us890l. physical and mechanical properties: density: 8.24g/cm3. tensile strength: b 520mpa. elongation: 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.

2507 is a ferritic-austenitic(duplex) stainless steel, combined the excellent performance of ferritic steel and austenitic steel, as the chromium and molybdenum content is high, it has a very good resistance to pitting corrosion, crevice corrosion and uniform corrosion. Duplex microstructure organization ensured the capacity to high stress corrosion cracking, also high mechanical strength.2507 stainless steel used in oil and gas industry; offshore oil platform(heat exchanger tubes, water treatment and water supply systems, fire systems, sprinkler systems, steady water system; petroleum-chemical industry equipment; desalination equipment (and high-pressure equipment pipe); required the mechanical and structural components to be with high strength and high corrosion resistance, for example, fuel(waste) gas purification equipment.National standards:ASTM/ASME:A240 - UNS S32750EURONORM:1.4410 - X2 Cr Ni MoN 25.7.4AFNOR:Z3 CN 25.06 AzDIN/EN 1.4410ASME SA-240 Mechanical Characteristics: SAF 2507 has high compressive strength, impact strength, low thermal expansion coefficient, high thermal conductivity. These characteristics apply to many structural components and mechanical components. Not suitable for SAF 2507 to work under 570 F in a long time. This may weaken its toughness. Tensile strength: b 730Mpa; elongation: 20%Matching welding consumables: ER2594 wire, E2594 electrodeApplication: pulp and paper industry, water desalination, gas purification, heat exchangers, piping systems for chemical tankers, water systems.