ASTM A325 Pipe Fittings

ASTM A325 Pipe Fittings generally refers to high-quality carbon steel piping components (such as Elbows, Tees, and Reducers, typically A234 WPB or equivalent) assembled using ASTM A325 high-strength structural bolting. While A325 is a specification for bolts, the term is used in this context to denote fittings within a system secured by A325 fasteners. These fasteners provide the necessary structural integrity and high clamping force for flanged connections in industrial piping where strength and reliability are paramount, particularly in high-load situations. Zeron Fastners supplies these components for general industrial, chemical, and utility piping systems.

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ASTM A325 Pipe Fittings

ASTM A325 Type 1 Bolting Chemical Composition (Used with Pipe Fittings)

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 Pipe Fittings)

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 Pipe Fittings Feature Products