Chemical Composition of SS Buttweld Fittings

Grade C P S Cr Mn Si Mo Ni Fe N
Duplex S31803 0.030 max 0.030 max 0.020 max 22 – 23 2 max 1 max 3 – 3.50 4.50 – 6.50 Bal 0.14 – 0.20
Grade C Mn Si Cr Mo Ni P S N Fe
2507 0.030 max 1.20 max 0.80 max 24.00 – 26.00 3.00 – 5.00 6.00 – 8.00 0.035 max 0.020 max 0.24 – 0.32 58.095 min
Mechanical Properties of SS Butt weld Pipe Fittings

Density Tensile Strength Melting Point Yield Strength (0.2%Offset) Elongation
7.8 g/cm3 Psi – 116000 , MPa – 800 1350 °C (2460 °F) Psi – 80000 , MPa – 550 15 %
Grades Density (lb/in 3) Density (g/cm 3) Melting Point (°C) Melting Point (°F)
2507 0.281 7.8 1350 2460