ASTM A403 WP347 Stainless Steel Butt Weld Fittings Manufacturer in India

Ganpat Metal manufactures and supplies certified ASTM A403 WP347 Stainless Steel Butt Weld Fittings conforming to ASTM A403 WP347 / ASME SA403 and ASME B16.9 / B16.28 standards. Grade 347 is a columbium/niobium-stabilized austenitic stainless steel. Niobium prevents chromium depletion at grain boundaries during extended exposure to 425–850°C, delivering superior creep-rupture strength in boiler tubes, exhaust manifolds and refineries.

Our ASTM A403 WP347 fittings portfolio includes 90° and 45° long and short radius elbows, straight tees, reducing tees, concentric and eccentric reducers, pipe caps, and stub ends. Available in seamless construction for ultra-high pressures and 100% X-ray inspected welded construction for large diameters, all fittings undergo rigorous solution annealing or normalizing heat treatment to assure superior metallurgical grain structure, ductility, and corrosion resistance.

We maintain deep inventories in sizes from 1/2" NB to 48" NB across schedules 10S, 40, STD, 80, XS, 160, and XXS. All fittings are beveled to ASME B16.25 for quick on-site fit-up and are supplied with EN 10204 Type 3.1 Mill Test Certificates from our Mumbai warehouse.

ASTM A403 WP347 Fittings Specifications

ASTM A403 WP347 Fittings Inspection and Testing

• Dimensional inspection according to ASME B16.9 (OD, ID, wall thickness, center-to-end, out-of-roundness)
• Bevel end angle and root face verification conforming to ASME B16.25 (37.5° ± 2.5°)
• Chemical composition analysis by Optical Emission Spectrometry (PMI / OES lab test)
• Tensile strength, yield strength (0.2% offset) and elongation testing at ambient temperature
• Hardness testing (Brinell HBW / Rockwell HRC) conforming to NACE MR0175 / ISO 15156
• 100% Visual and surface inspection for internal & external laminations, laps, or cracks
• 100% Radiographic Testing (RT) / X-Ray on weld seams of welded fittings (ASME Section VIII Div 1)
• Ultrasonic Testing (UT) / Eddy Current examination for seamless fittings
• Dye Penetrant (DP) / Liquid Penetrant Examination (PT) of bevel ends and welded joints
• Hydrostatic proof testing validation matching associated pipe pressure rating
• Intergranular corrosion test (ASTM A262 Practice E/A) or pitting corrosion test (ASTM G48 Method A)
• Complete Mill Test Certificate EN 10204 Type 3.1 / 3.2 documentation with full traceability

ASTM A403 WP347 Fittings Applications

• Oil & gas offshore platforms, subsea manifolds, riser pipelines, and wellhead piping
• Petroleum refineries, atmospheric distillation units, hydrocrackers, and catalytic reformers
• Chemical processing plants, organic and inorganic acid synthesis, and reaction vessels
• Thermal, combined-cycle and nuclear power stations, boiler steam headers, and feedwater loops
• LNG receiving terminals, cryogenic transfer pipelines, and liquefied gas storage tanks
• Marine shipbuilding, naval defense vessels, seawater cooling circuits, and bilge lines
• Fertilizer manufacturing complexes, ammonia synthesis loops, and urea stripper piping
• Desalination plants, reverse osmosis high-pressure headers, and brine discharge lines
• Pharmaceutical sterile processing, high-purity water systems (WFI), and clean steam lines
• Food, brewery, and dairy processing sanitary pipelines
• Pulp and paper processing digesters, chlorine bleach towers, and black liquor recovery systems
• Mining slurry transportation pipelines, autoclave leaching, and hydrometallurgical piping

ASTM A403 WP347 Fittings Manufacturer and Supplier in India

Ganpat Metal manufactures and supplies certified ASTM A403 WP347 Fittings for industrial buyers across India. All materials are sourced from premium quality mills, fully tested for chemistry, mechanical properties, and dimensional tolerances, and supplied with complete traceable Mill Test Certificates.

Whether you require standard stock dimensions or customized sizes, Ganpat Metal maintains deep inventories in Mumbai and provides rapid dispatch, custom cut-to-length services, and third-party inspection support.

ASTM A403 WP347 Fittings Exporter from India

Why Choose Ganpat Metal for ASTM A403 WP347 Fittings?

• Comprehensive inventory covering 1/2" NB to 48" NB in seamless and 100% X-ray welded execution
• Manufactured strictly conforming to ASME B16.9, MSS-SP-43, and international dimensional tolerances
• Precision weld beveling to ASME B16.25 for effortless root-pass alignment and rapid site welding
• Complete grade availability: Austenitic SS, Duplex, Super Duplex, Alloy Steel, Carbon Steel, and Nickel Alloys
• Fully equipped in-house heat treatment furnaces (solution annealing, normalizing, stress relieving)
• 100% Positive Material Identification (PMI) prior to packing with portable XRF spectrometers
• NACE MR0175 / ISO 15156 compliance certification for harsh sour gas and H2S service
• Stringent Non-Destructive Testing (RT, UT, PT, MT) conducted by Level II certified technicians
• ISO 9001:2015 certified manufacturer with 35+ years of trusted engineering supplies across India & globally
• Welcoming third-party inspection agencies (TUV, DNV, Bureau Veritas, SGS, Lloyds, Velosi)
• Heavy-duty export-worthy wooden case packaging with beveled end plastic cap protection

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