AISI 4130 Pipe Fittings & Flanges

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Chemical Composition of SS Buttweld Fittings

AISI 4130 Ni C Mo Mn Si Fe Cu S P Cr
0.50 max 0.28-0.33 0.15-0.25 0.40-0.60 0.15-0.35 97.3-98.22 – 0.025 MAX 0.035 MAX 0.80-1.10
Chemical Composition of SS Forged Fittings
Grade Ni C Mo Mn Si Fe Cu S P Cr
AISI 4130 0.50 max 0.28-0.33 0.15-0.25 0.40-0.60 0.15-0.35 97.3-98.22 – 0.025 MAX 0.035 max 0.80-1.10
Chemical Composition of SS Flanges
Grade C Mn Si P S Fe Mo Ni Cr
AISI 4130 0.28-0.33 0.40-0.60 0.15-0.35 0.035 max 0.025 MAX 97.3-98.22 0.15-0.25 0.50 max 0.80-1.10
Mechanical Properties of SS Butt weld Pipe Fittings

Density Melting Point Yield Strength (0.2%Offset) Tensile Strength Elongation
0.28 2580 460 MPa 560 MPa 20 %
Mechanical Properties of SS Forged Fittings
Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
7.85 g/cm3 1432 ℃ 560 460 21.50 %
Mechanical Properties of SS Flanges
Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
7.85 g/cm3 1432 ℃ 560 460 21.50%
Equivalent Grades of Flanges
STANDARD WERKSTOFF NR. UNS JIS BS EN
AISI 4130 1.7218 G41300 JIS G4105 BS 970 25CrMo4
Equivalent Grades of Forged Fitting
STANDARD WERKSTOFF NR. UNS SIS BS EN
AISI 4130 1.7218 G41300 JIS G4105 BS 970 25CrMo4
Equivalent Grades of Buttweld Fitting
STANDARD UNS WERKSTOFF NR. AFNOR EN JIS BS GOST
AISI 4130 G41300 1.7218 – 25CrMo4 JIS G4105 BS 970 –

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