Ansi B16.5 Welding Neck Flanges
Your Professional Ansi B16.5 Welding Neck Flanges Supplier
Shanxi Hongkai Forging Co., Ltd. is located in China Energy Heavy Chemical Industry Base. Dingxiang County, the hometown of forging in Shanxi Province. Mainly produce flanges and forgings of various specifications. Application in piping installation, pressure vessel, equipment accessories.
Why Choose Us
Our Service
With strong technical force, advanced production technology, perfect quality inspection, and reliable after-sales service, it provides a basis for supervision and cooperation for many customers at home and abroad.
Our Certificate
The company Excellent Supplier of 2019 Safety production standardization certificate Quality management system certification.
Production Market
The products are mainly exported. It is exported to Europe, America and other countries and regions. The product quality is good, and the service is attentive. It is deeply appreciated and trusted by customers and users at home and abroad, and has won a high reputation. They have become one of the largest flange and forging suppliers in China.
Our Factory
Shanxi Hongkai Forging Co., Ltd. is located in China Energy Heavy Chemical Industry Base. Dingxiang County, the hometown of forging in Shanxi Province. Convenient transportation, abundant coal and power resources, fast communication and superior environment.
Product Description
|
Size |
Max Outside Diameter: 6000mm |
|
Pressure |
150#-2500#,PN0.6-PN400,5K-40K |
|
Sealing Face |
Raised Face (RF), Full Face (FF), Ring Joint (RTJ), Groove, Tongue - Customizable! |
|
Surface treatment |
Widely used in Petrochemical Industry, Pharmaceutical Industry, Gas Exhaust Systems, Power Plants, Shipbuilding, Water Treatment, etc. |
|
Material |
Stainless Steel,Carbon Steel,Alloy Steel |
|
Technology |
Forged casting |
Advantages of Ansi B16.5 Welding Neck Flanges
High mechanical integrity:
The tapered hub reduces stress concentration at the weld, delivering improved fatigue resistance compared with slip-on or threaded flanges.
Better flow characteristics:
Smooth bore and butt-weld connection minimize turbulence and pressure drop.
Full-penetration butt weld:
Ensures strong, leak-resistant joints for critical services.
Manufacturing process
Raw material procurement: Certified seamless/heavy plate material from mills.
Cutting & profiling: CNC cutting or oxy-fuel/plasma for larger sizes.
Forging/rolling: Forged hubs for pressure classes requiring higher strength; rolled plate machining where applicable.
Heat treatment: Normalizing, quenching & tempering, or annealing as required by material spec.
CNC machining: Face finish, bore, hub taper, and flange thickness to ASME tolerances.
Drilling & facing: Bolt-hole pattern, raised face/RTJ groove, and finish to specification.
NDE & inspection: Visual, PMI, UT/RT/MPI/PT per order.
Cleaning & coating: Pickling/passivation for stainless, varnish/primer/packing for export.
Documentation & packaging: MTRs, NDT reports, WPS/PQR, and export-grade packing.
Application of Ansi B16.5 Welding Neck Flanges
Oil and Gas Industry
Weldneck flanges are commonly used in oil and gas piping systems, where they are used to transport crude oil, natural gas, and other petroleum products.
Chemical Processing Industry
Weldneck flanges are used in chemical processing plants to transport various chemicals and materials.
Water Treatment Industry
Weldneck flanges are used in water treatment plants to transport water and other fluids.
Power Generation Industry
Weldneck flanges are used in power generation plants to transport steam, gas, and other fluids.
Shipping
FAQ
We're well-known as one of the leading ansi b16.5 welding neck flanges manufacturers and suppliers in China. If you're going to wholesale high quality ansi b16.5 welding neck flanges with competitive price, welcome to get more information from our factory. Also, customized service is available.
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