Density Kg/dm3:7.8
PLATES
ASTM / ASME:A/SA 240
EN:10028-7
WELDED PIPES
ASTM / ASME:A/SA 790 – A 928
EN:10217-7
SEAMLESS PIPES
ASTM / ASME:A/SA790
EN:10216-5
FITTINGS
ASTM / ASME:A/SA 815
EN:10253-4
VdTÜV
418
Reference:A/SA 240
Tensile Strength min N/mm2:620
Yield Point min N/mm2:450
Elongation 2” min %:25
Hardness max HB:293
Hardness max HRB:31
C% max:0.03
Mn% max:2.00
Si% max:1.00
P% max:0.03
S% max:0.02
Cr%:21 – 23
Ni%:4.5 – 6.5
Mo%:2.5 – 3.5
Fe%:Resto Balance
Cu% max:-
Other elements:N 0.08 – 0.2
Reference:A/SA 240
Tensile Strength min N/mm2:655
Yield Point min N/mm2:450
Elongation 2” min %:25
Hardness max HB:293
Hardness max HRB:31
C% max:0.03
Mn% max:2.00
Si% max:1.00
P% max:0.03
S% max:0.02
Cr%:22 – 23
Ni%:4.5 – 6.5
Mo%:3 – 3.5
Fe%:Resto Balance
Cu% max:-
Other elements:N 0.14 – 0.2
* The most widely used grade in the duplex family with PREN ≥ 35 (Note a). It is a nitrogen alloyed austenitic-ferritic stainless steel with improved structure stability and high general, localised and stress corrosion resistance properties. It performs much better than 316L grade in almost all corrosive media. Typical operation temperatures are -50°C/+ 280°C (-60°F/+540°F). Lower temperatures uses could be considered but require additional precautions for welded structures. I* Pollution control equipments, chemical industry (reactor vessels...), Urea Production, acetic acid distillation towers, phosphoric acid plants (reactors), sulphuric acid processes (hydrometallurgy), pulp and paper industry, marine environments, brackish water, bleaching operations, closed loop water systems, food processing applications, oil and gas industry including sour gas applications