Rishabh Industries is a trusted and reputed manufacturer specializing in high-quality Welding Neck Flanges that conform strictly to ASME standards.
Our products are designed to meet diverse industrial requirements with precision and durability.
We are based in Ahmedabad, Gujarat, India.
Rishabh Industries delivers top-quality Welding Neck Flanges, strictly following ASME standards for critical global piping applications.
Our commitment to quality, precision manufacturing, and client satisfaction has made us a preferred partner in the global industrial sector.
The Welding Neck Flange, often called a high-hub or tapered-hub flange, welds to pipes to withstand high pressure, temperature changes, and mechanical stresses.
Its tapered hub design ensures a smooth stress transition from flange to pipe, enhancing durability and reducing failure risk under severe operating conditions.
Compliance & Standards
Rishabh Industries manufactures Welding Neck Flanges compliant with ASME B16.5 (up to 24″) and B16.47 for larger sizes.
Our flanges meet all critical dimensional, mechanical, and material specifications as prescribed by ASME.
We use ASTM-certified materials, including A105 carbon steel and A182 stainless/alloy steels, ensuring strength and corrosion resistance.
Quality Assurance
Our Welding Neck Flanges undergo rigorous quality assurance protocols aligned with ISO 9001:2015 standards.
Material traceability is maintained throughout the manufacturing lifecycle, and comprehensive testing—including PMI (Positive Material Identification), hydrostatic testing, and radiography—is performed to certify product reliability and safety.
Technical Specifications:
Size: 1/2″ (15 NB) to 48″ (1200NB)
Standards: ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
Pressure Ratings: Class 150, Class 300, Class 400, Class 600, Class 900, Class1500, Class 2500 | PN6, PN10, PN16, PN25, PN40, PN64 etc.
Carbon Steel Weld Neck Flanges: ASTM A105/A105N, A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2, A694 F42, F46, F48, F50, F52, F56, F60, F65, F70, A516.60, 65, 70 (Spectacle Blind Flange, Spacer Ring/Spade Flange), Steel RST37.2, C22.8
Stainless Steel Weld Neck Flanges: ASTM A182 F202, F304/304L/304H, F316/316L, F316H, F316TI, F310, F321, F904L
Alloy Steel Weld Neck Flanges: ASTM A182 F1, F5, F9, F11, F22, F91
Special Alloy Weld Neck Flanges: Duplex, Super Duplex, Nickel Alloys Flange Face Type: Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
Coating/Surface Treatment: Anti-rust Paint, Oil Black Paint, Yellow Transparent, Zinc Plated, Cold and Hot Dip Galvanized
Value Added Services: CNC Machining, Customised Flanges
Application
Our Welding Neck Flanges are widely used in sectors including:
- Oil & Gas pipelines
- Petrochemical plants
- Power generation units
- Fertilizer manufacturing
- Shipbuilding and marine applications
Rishabh Industries is a Welding Neck Flange ASME Standard Manufacturer in Ahmedabad also Supply across India.
For inquiries or detailed quotations on Welding Neck Flanges and other ASME standard flanges, please contact Rishabh Industries at:
- Website: www.rishabhind.in
- Email: info@rishabhind.in
- Phone: 91+ 9930532430
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