ASME B16.5 Forged Steel Weld Neck & Blind Flanges
ASME B16.5 / MSS SP-44· Pipeline Flanges

ASME B16.5 Forged Steel Weld Neck & Blind Flanges

Piping manifold tie-ins, vessel nozzles, pump discharge connections, and valve flanged terminations.

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100% Stamped Heat Number Traceability
EN 10204 3.1 MTC Supplied
Air Cargo Eligible (24–48h Dispatch)

Technical specifications & verification parameters

ParameterSpecification value
Design & manufacturing standardASME B16.5 / MSS SP-44
Product classificationPipeline Flanges
Material or metallurgy gradeASTM A105 Carbon Steel / ASTM A182 F316L Stainless
Nominal size / dimension range1/2" to 24" NB (DN 15 to DN 600)
Class or pressure ratingClass 150, 300, 600, 900, 1500# Raised Face (RF)
Export HS Code73079100
Country of originIndia
Dispatch & lead timeDispatch from supplier stock, confirmed at quotation · Direct sea container transit (3–4 days to UAE/Oman) or priority Air Cargo dispatch (24–48h) for emergency shutdown spares.
Inspection & test documentation
  • EN 10204 3.1 MTC with heat number stamped on flange rim
  • PMI Spectral Analysis

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Pipeline flanges & buttweld fitting scope

ASME B16.5 forged flanges, ASME B16.9 buttweld seamless elbows and tees, and ASME B16.11 high-pressure socket-weld fittings for refinery headers, process piping, and water transmission pipelines.

Flange Geometries & Classes

Weld Neck (WNRF), Slip-On (SORF), Blind (BLRF), and Socket Weld flanges in ASME Class 150, 300, 600, 900, and 1500# ratings from 1/2" to 24" nominal bore.

Buttweld Fitting Geometries

Long radius 90° and 45° elbows, equal and reducing tees, concentric and eccentric reducers, and pipe caps conforming to ASME B16.9 and MSS-SP-75.

Materials & Wall Schedules

ASTM A105, ASTM A350 LF2 (low temp), ASTM A182 F316/316L, and WPB carbon steel. Wall thicknesses: Schedule 20, 40, STD, 80, XS, 160, and XXS with machined weld bevels.

Verification & MTCs

EN 10204 3.1 MTCs with stamped heat numbers, ultrasonic wall thickness inspection, dimensional verification, and Positive Material Identification (PMI) spectral analysis.

Commonly consolidated within the same shipment to Arabian Gulf ports.

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