ASME B16.5 Weld Neck Flange – 6" – Class 1500 – High-Pressure Rated

Available for sale is a 6-inch Class 1500 Weld Neck Flange, precision-engineered for extremely high-pressure applications and fully compliant with ASME B16.5 standards. These flanges are designed for critical piping systems in industries such as oil & gas, refineries, chemical plants, and power generation.

Manufactured using high-performance materials such as carbon steel (ASTM A105 / A350 LF2), stainless steel (A182 F304 / F316 / F321), and alloy or high-strength steels (A182 F11 / F22 / A707), this flange is offered with Raised Face (RF) or Ring-Type Joint (RTJ) sealing surfaces.

With a flange thickness of approximately 70 mm, this unit ensures enhanced structural integrity under high-pressure and high-temperature operating conditions. Surface protection such as anti-rust oil, epoxy coating, or galvanization is available upon request.

Specifications:

– Flange Type: Weld Neck (WN) (Other options: BL / SO if required)
– Nominal Pipe Size (NPS): 6 inches
– Pressure Rating: Class 1500
– Standard Compliance: ASME B16.5
– Material Options:
 • ASTM A105 / A350 LF2 (Carbon Steel)
 • ASTM A182 F304 / F316 / F321 (Stainless Steel)
 • ASTM A182 F11 / F22 / F91 (Alloy Steel)
 • ASTM A707 (High-Strength Steel)
– Facing Type: Raised Face (RF) / Ring-Type Joint (RTJ)
– Coating: Anti-Rust Oil / Epoxy / Galvanized (Optional)
– Outer Diameter (OD): Approx. 330 mm
– Bolt Circle Diameter (BCD): Approx. 286 mm
– Bolt Hole Count: 12
– Bolt Hole Size: 1-1/8 inches
– Flange Thickness: Approx. 70 mm

Mechanical & Performance Properties:
– Yield Strength: ≥ 250 – 485 MPa
– Tensile Strength: ≥ 485 – 760 MPa
– Operating Temperature Range: –50°C to 600°C (depending on material)
– Corrosion Resistance: Available with NACE MR0175 compliance

For further specifications or to inquire about this equipment and ReflowX's logistics services, please contact ReflowX at info@reflowx.com