Inconel Buttweld Fitting

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Chemical Composition of SS Buttweld Fittings

Grade C S Cu Fe Mn Si Ni Cr
600 0.15 0.015 0.50 6.00 – 10.0 1.00 0.50 72.00 14.00 – 17.00
Grade C S Cu Fe Mn Si Ni Cr
Inconel 601 0.15 max 0.015max 1.0 max balance 1.00 max 0.50 max 58.0-63.0 21.0-25.0
Grade C Mn Si S Al Fe Mo Nb + Ta Ti Cr2 Ni
625 0.10 0.50 0.50 0.015 0.40 5.0 8.0-10.0 3.15–4.15 0.40 20.0-23.0 58.0 min
Grade C Mn Si Cr B Mo Co Al Ti Nb Cu
Inconel 718 0.08 max 0.35 max 0.35 max 17 – 21 0.006 max 2.8 – 3.3 1.0 max 0.2 – 0.8 0.65 – 1.15 4.75 – 5.5 0.3 max
Grade C Mn Si Fe Ni S Cu Cr Ti Al
800 0.10 max 1.50 max 1.00 max 39.50 min 30.00 – 35.00 0.015 max 0.75 max 19.00 – 23.00 0.15 – 0.60 0.15 – 0.60
800H 0.05 – 0.10 1.50 max 1.00 max 39.50 min 30.00 – 35.00 0.015 max 0.75 max 19.00 – 23.00 0.15 – 0.60 0.15 – 0.60
800HT 0.06 – 0.10 1.50 max 1.00 max 39.50 min 30.00 – 35.00 0.015 max 0.75 max 19.00 – 23.00 0.15 – 0.60ᴬ 0.15 – 0.60ᴬ
Grade C S Mn Si Cu Cr Fe Ni Al Ti
825 0.05 max 0.03 max 1.00 max 0.5 max 1.50 – 3.00 19.50 – 23.50 22.00 min 38.00 – 46.00 0.02 max 0.06 – 1.20
Grade C Mn Si Fe Ni Cr S Cu Al Ti
925 0.03 max 1.00 max 0.05 max 22.00 min 42.00 – 46.00 19.55 – 22.50 0.03 max 1.50 – 3.00 0.01-0.05 max –
Grade C Mn Si Cr Cu P S N
330 min. – – 0.75 17.0 – – – 34.0
max. 0.08 2.0 1.50 20.0 – 0.030 – 37.0
Mechanical Properties of SS Butt weld Pipe Fittings

Grade Density Yield Strength (0.2%Offset) Melting Point Tensile Strength Elongation
600 8.47 g/cm3 Psi – 45,000 , MPa – 310 1413 °C (2580 °F) Psi – 95,000 , MPa -655 40 %
Element Density Tensile Strength Melting Point Yield Strength (0.2%Offset) Elongation
Inconel 601 8.1 g/cm3 Psi – 80,000 , MPa – 550 1411 °C (2571 °F) Psi – 30,000 , MPa – 205 30 %
Grade Density Yield Strength (0.2%Offset) Melting Point Tensile Strength Elongation
625 8.4 g/cm3 Psi – 75,000 , MPa – 517 1350 °C (2460 °F) Psi – 1,35,000 , MPa -930 42.5 %
Element Density Tensile Strength Melting Point Yield Strength (0.2%Offset) Elongation
Inconel 718 8.2 g/cm3 Psi – 1,35,000, MPa – 930 1350 °C (2460 °F) Psi – 75,000, MPa – 482 45 %
Element Density Tensile Strength Melting Point Elongation Yield Strength (0.2%Offset)
800 / 800H / 800HT 7.94 g/cm3 Psi – 75,000 , MPa – 520 1385 °C (2525 °F) 30 % Psi – 30,000 , MPa – 205
Element Melting Point Density Yield Strength (0.2%Offset) Tensile Strength Elongation
825 1400 °C (2550 °F) 8.14 g/cm3 Psi – 32,000 , MPa – 220 Psi – 80,000 , MPa – 550 30 %
Element Density Tensile Strength Melting Point Yield Strength (0.2%Offset) Elongation
925 8.14 g/cm3 Psi – 80,000 , MPa – 550 1400 °C (2550 °F) Psi – 32,000 , MPa – 220 30 %
Properties Imperial Metric
Tensile strength(annealed) 87 ksi 600 MPa
Elongation at Break 45% 45%
Yield strength(annealed) 40.6 ksi 280 MPa

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