ASTM A325 Socket Weld Flanges

ASTM A325 Socket Weld Flanges refers to the assembly of Socket Weld Flanges (SWF—typically ASTM A105 carbon steel) utilizing ASTM A325 high-strength structural bolting. Socket Weld Flanges feature a socket to receive the pipe and are welded via a fillet weld. This design is often used for smaller bore, higher pressure piping systems where the structural integrity of the joint is critical. When secured with A325 bolts, the assembly benefits from the high tensile strength and superior clamping force of the quenched and tempered carbon steel fasteners. This combination is common in industrial and chemical piping where leak prevention and robust structural connections are paramount. Zeron Fastners supplies the necessary SWF components and A325 bolting for these critical pipeline connections.

Related Products

ASTM A325 Hex Bolts ASTM A325 Stud Bolts ASTM A325 Nuts ASTM A325 Blind Flanges Carbon Steel Socket Weld Flanges ASTM A325 Weld Neck Flanges
ASTM A325 Socket Weld Flanges

ASTM A325 Type 1 Bolting Chemical Composition (Used with Socket Weld Flanges)

Element Content (%)
Carbon (C) 0.30 – 0.52
Manganese (Mn) 0.60 min
Phosphorus (P) 0.035 max
Sulfur (S) 0.045 max
Silicon (Si) 0.10 min
Boron (B) Optional

ASTM A325 Bolting Mechanical Properties (Used with Socket Weld Flanges)

Property 1/2" to 1" Diameter (min) 1-1/8" to 1-1/2" Diameter (min)
Tensile Strength 120 ksi (827 MPa) 105 ksi (724 MPa)
Yield Strength (0.2% Offset) 92 ksi (634 MPa) 81 ksi (558 MPa)
Elongation in 4D 14% 14%
Hardness (Brinell max) 319 HB 319 HB

ASTM A325 Socket Weld Flanges Feature Products

Super Duplex S32750 Flanges Monel 400 Socket Cap Screws SS 316 Pipe Fittings Alloy Steel Cap Screws

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