Chemical Composition of SS Buttweld Fittings

Grade C Mn Si S Cu Fe Ni Cr
Inconel 600 0.15 max 1.00 max 0.50 max 0.015max 0.50 max 6.00 – 10.00 72.00 min 14.00 – 17.00
Grade C Mn Si S Cu Fe Ni Cr
Inconel 601 0.10 max 1.00 max 0.50 max 0.015max 1.00 max Balance 58.0 – 63.0 21.0 – 25.0
Grade C Mn Si S Cu Fe Ni Cr
Inconel 625 0.10 max 0.50 max 0.50 max 0.015max 5.0 max 58.0 min 20.0 – 23.0
Grade C Mn Si S Cu Fe Ni Cr
Inconel 718 0.08 max 0.35 max 0.35 max 0.015max 0.30 max 50.00 – 55.00 17.00 – 21.00
Grade C Mn Si S Cu Fe Ni Cr Al Ti
800 0.10 max 1.50 max 1.00 max 0.015 max 0.75 max 39.50 min 30.00 – 35.00 19.00 – 23.00 0.15 – 0.60 0.15 – 0.60
800H 0.05 – 0.10 1.50 max 1.00 max 0.015 max 0.75 max 39.50 min 30.00 – 35.00 19.00 – 23.00 0.15 – 0.60 0.15 – 0.60
800HT 0.06 – 0.10 1.50 max 1.00 max 0.015 max 0.75 max 39.50 min 30.00 – 35.00 19.00 – 23.00 0.15 – 0.60ᴬ 0.15 – 0.60ᴬ
Grade C Mn Si S Cu Fe Ni Cr Al Ti
825 0.05 max 1.00 max 0.5 max 0.03 max 1.50 – 3.00 22.00 min 38.00 – 46.00 19.50 – 23.50 0.02 max 0.06 – 1.20
Grade Ni Cr Fe Si Mo Cu Mn C S Al
Incoloy 925 42 – 46 19.55 – 22.5 22 min 0.5 max 2.5 – 3.5 1.5 – 3.0 1.0 max 0.03 max 0.03 max 0.1 – 0.5
Grade C Mn Si S Cu Fe Ni Cr Sn Pb
330 0.08 max 2.00 max 0.75-1.50 0.03 max 1.00 max Balance 34.0-37.0 17.0-20.0 0.025 0.005 max
Mechanical Properties of SS Butt weld Pipe Fittings

Element Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
Inconel 600 8.47 g/cm3 1413 °C (2580 °F) Psi – 95,000 , MPa – 655 Psi – 45,000 , MPa – 310 40 %
Element Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
Inconel 601 8.1 g/cm3 1411 °C (2571 °F) Psi – 80,000 , MPa – 550 Psi – 30,000 , MPa – 205 30 %
Element Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
Inconel 625 8.4 g/cm3 1350 °C (2460 °F) Psi – 1,35,000 , MPa – 930 Psi – 75,000 , MPa – 517 42.5 %
Element Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
Inconel 718 8.2 g/cm3 1350 °C (2460 °F) Psi – 1,35,000 , MPa – 930 Psi – 75,000 , MPa – 482 45 %
Element Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
800 / 800H / 800HT 7.94 g/cm3 1385 °C (2525 °F) Psi – 75,000 , MPa – 520 Psi – 30,000 , MPa – 205 30 %
Element Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
825 8.14 g/cm3 1400 °C (2550 °F) Psi – 80,000 , MPa – 550 Psi – 32,000 , MPa – 220 30 %
Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
8.14 g/cm3 1343°C 650 300 30 %
Element Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
Incoloy 330 8.47 g/cm3 1413 °C (2580 °F) Psi – 95,000 , MPa – 655 Psi – 45,000 , MPa – 310 40 %