Alloy Steel and Carbon Steel Socket Welded Flanges (SW Flanges) are designed with a recessed socket that allows the pipe to be inserted into the flange before welding. The connection is completed with a fillet weld around the outer edge.
These flanges are commonly used in small-diameter, high-pressure piping systems, where strong, leak-tight connections and proper alignment are essential.
Carbon steel socket weld flanges provide a cost-effective solution for general applications, while alloy steel versions offer enhanced performance in high-temperature, high-pressure, and severe service conditions.
Alloy steel Carbon steel Socket Welded Flanges
More than Alloy steel Carbon steel Socket Welded Flanges：
Flanges types:
Slip on flanges, welding neck flanges, long welding neck flanges, blind flanges, plate flanges, socket welding flanges, threaded flanges, lap joint flanges, orifice flanges, loose plate flanges.
Material:
Carbon steel , Stainless steel, Alloy steel:
A105, A36, Rst37.2, St37.2, C22.8, SA350 LF2/LF1, Q235, Q345, SS400, SF45, S235GRJ2,
304,304L,316,316L
Surface treatment:
Antirust oil, yellow, epoxy coating, nylon surface,hot galvanized,electrical galvanized
Making type:
Forged or casted
Standard:
ANSIB16.5/B16.47/B16.48/B16.36, ASME,MSS SP44, AWWA C207,DIN2527, DIN2566, DIN2573,DIN2576,DIN2641,DIN2642, DIN2655, DIN2656, DIN2627, DIN2628,DIN2629, DIN 2631, DIN2632,DIN2633,DIN2634,DIN2635,DIN2636, DIN2637, DIN2638, DIN2673 BS4504/10, JIS, EN 1092, NF, API590 FIG.8, GB, etc.
Pressure grade:
ASTM B16.5: 150LBS, 300LBS,400LBS, 600LBS, 900LBS, 1500LBS, 2500LBS
DIN: 6Bar, 10Bar, 16Bar, 25Bar, 40Bar
BS4504: PN2.5-PN40
BS10: Table D, E, F, H
JIS: 5K,10K, 16K, 20K, 30K
