ASTM A105 Forged Carbon Steel Weld Neck Flanges

The Weld Neck Flange (WN Flange) is a specialized forging characterized by a long tapered hub that is butt-welded to the pipe. This design provides superior stress distribution and resistance to dishing under internal pressure, making it the highest-integrity flange type for critical, high-pressure, and high-temperature applications. The standard material for these flanges in industrial piping is ASTM A105, which specifies Forged Carbon Steel suitable for pressure systems. The flanges are designed to mate directly with ASTM A193 Grade B7 Stud Bolts and their complementary ASTM A194 Grade 2H Heavy Hex Nuts. This entire bolted joint system (A105 flange + B7 bolt + 2H nut) is the industry standard for pipelines in power generation, chemical, and oil & gas sectors. Zeron Fasteners offers these flanges across all pressure classes (e.g., 150# to 2500#) and conforming to ASME B16.5 dimensional standards.

Related Products

ASTM A194 Gr 2H Nuts ASTM A307 Stud Bolts SS 304L Weld Neck Flanges ASTM A193 B8M Couplings SS 304 Blind Flanges
ASTM A105 Forged Weld Neck Flanges Manufacturer in India

ASTM A105 Flanges Chemical Composition

Element Composition (Mass %)
Carbon (C) 0.35% maximum
Manganese (Mn) 0.60% to 1.05%
Phosphorus (P) 0.035% maximum
Sulfur (S) 0.035% maximum
Silicon (Si) 0.10% to 0.35%

ASTM A105 Flanges Mechanical Properties

Property Value
Size Range Minimum Value
Tensile Strength, minimum 70 ksi (485 MPa) minimum
Yield Strength, minimum 36 ksi (250 MPa) minimum
Elongation After Fracture, minimum 22% minimum

Features Product

Duplex UNS S32760 Tees Hastelloy C276 Flanges SS 316 Couplings SS 410 Screws Incoloy 800 Elbows

People also Search for ASTM A105 Forged Carbon Steel Weld Neck Flanges

ASTM A105 Flanges, Carbon Steel Flanges, Weld Neck Flanges, WN Flanges, High-Pressure Flanges, A194 2H Compatible, B7 Bolting, Forged Flanges, Zeron Fasteners