Carbon Steel Forge Fitting

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Chemical Composition of SS Buttweld Fittings

Grade C Si S Mo Mn P Ni Cr V Cu
A105 0.35 0.10–0.35 0.040 0.12 0.60–1.05 0.035 0.40 0.30 0.08 0.40
Grade C Si S Mo Ni Cr Cu Mn P V
A350 LF2 0.30 0.15–0.30 0.040 0.12 0.02 0.30 – 0.60–1.35 0.035 0.08
Chemical Composition of ASTM A694, Heat Analysis, %
Carbon [C] ≤0.30
Manganese [Mn] ≤1.60
Phosphorus [P] ≤0.025
Sulfur [S] ≤0.025
Silicon [Si] 0.15-0.35
Mechanical Properties of SS Butt weld Pipe Fittings

Grade Tensile Strength, Min (MPa) Yield Strength, Min (MPa) Elongation, min, %
ASTM A105 485 250 30
Grade Tensile Strength, Min (MPa) Yield Strength, Min (MPa) Elongation, min, %
A350 LF2 485-655 250 22
ASTM A694 Grade Tensile Strength min. Yield Strength min. Elongation min.
MPa ksi MPa ksi %
F42 415 65 290 42 20
F46 415 60 315 46 20
F48 425 62 330 48 20
F50 440 64 345 50 20
F52 455 66 360 52 20
F56 470 68 385 56 20
F60 515 75 415 60 20
F65 530 77 450 65 20
F70 565 82 485 70 18

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