الوصف

Product Description: Duplex steel are with high mechanical strength, good elongation and weld ability which needs no pre-heating before welding and heat treatment after welding, low thermal expansion, excellent resistance to stress corrosion cracking, pitting and crevice corrosion, and high resistance to general corrosion in different environments. Duplex steel are applied to heat exchangers in refinery industries, petrochemical plants, paper & pulp industries, sugar & beverage industries. Standards: ASTM/ASME A**9/SA**9, A**0/SA**0 Grade(UNS): S****3;S****5;S****0 Outside diameter : 6 - **5mm(1/4" – *2.*5") Wall thickness : 0.*0 - *5mm Mill test certificate: according to EN ****4 3.2 Marking: XQ, material grade, standard, specification, heat no. Generally Length: unfixed length(********0mm) or fixed length