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flat welding flange with neck

Short Description:

Choose from our selection of flat-face pipe flanges, including over 500 products in a wide range of styles and sizes.

Tube Flat Flange are in stock and available for online ordering.

Products Introduce

Product Tags


Manufacturing Standards ASME B16.5  EN1092-1 JIS B2220  HG20595-97 HG20617-97  HG/T20615-2009  HG/T20595-2009
Size 1/2〞(DN15to 100(DN2500)
Pressure Class150 Class300 Class600 Class900 Class1500 Class2000  PN2.5PN6PN10PN16PN25PN40PN63PN100PN160
Manufacturing process Cutting,Heat treatment,Die Forging/Free Forging,CNC Machining
Material C70600, C70620, C71000, C71500, C70400, C71520, C72200, HSn62-1, C37800, H68, H62, H59, TA0, TA1, TA2, TA3, TA9, TA10, TC4, TC11
flat flange

Use &Application of Flat welding flange

  • Commonly used in the following industries:
  • architecture
  • bridge
  • Petrochemical industry
  • shipbuilding
  • project
  • Offshore and onshore services
  • Power generation industry
  • Food processing industry
  • oil and gas industr
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forged socket weld flange

Package of flat welding flange

  • Products are packaged to ensure that there is no damage during transit.
  • In case of exports, standard export packaging is done in wooden cases.
  • All pipes are marked with Grade, Lot No, Size, Degree and our trade mark.
  • On special requests we can also, make custom marking on our products.
  • Wooden Boxes
  • Wooden Pallets
  • Shrink-Wrapped
  • Carton Boxes

Testing of flat welding flange

  •  Manufacturer Test Certificate as per EN 10204 / 3.1B, Raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report
  •  Positive Material Identification - PMI Testing
  • Chemical Analysis - Spectro Analysis
  • Mechanical Testing Such as Tensile, Elongation, Reduction of Area
  • Micro Test
  • Macro Test
  • Hardness Test
  • Pitting Resistance Test
  • Intergranular Corrosion (IGC) Test
  • Flaring Test
  • Flattening Test
  • Hydrostatic Test
  • Hydrogen-Induced Cracking (HIC) Test, NACE TM0284
  • Sulfide Stress Corrosion Cracking (SSC), NACE TM 0177
  • Radiography Test
  • Dye Penetrant Test (DP Test)
Ansi cast steel globe valve

Certification of flat welding flange

All materials are strictly inspected at every stage of the production process from procurement to product shipment. Visually inspect them for compliance with ASTM, ASME, MSS, DIN, EN and JIS codes and standards. Support officially certified inspection agencies to witness product material reporting, dimensional and quality compliance. Factory inspections are also supported.

copper reducer

Product Description


As an industry-leading manufacturer, we offer a wide range of high-quality flange products, including forged flanges, slip-on flanges, stainless steel flanges, welded flanges, flat tube flanges, SO flanges, slip-on flanges, Plate flange, and anti-corrosion flange.

Our flanges are designed and manufactured to the highest industry standards and requirements. Each flange is carefully crafted from top-quality materials and undergoes strict quality control measures to ensure its durability and reliability in a variety of applications.

Our forged flanges are known for their exceptional strength and resistance to high pressures and temperatures, making them ideal for heavy industrial use. The sliding sleeve flange is easy to install and is widely used in low-pressure systems. Our stainless steel flanges are corrosion-resistant and suitable for harsh environments.

We also offer a range of welded flanges to provide strong and leak-proof connections to piping systems. Flat tube flanges are ideal for joining flat surfaces, while SO flanges provide a tight seal and are easy to assemble and disassemble. Our slip-on flanges are versatile and cost-effective, while our plate flanges are used to join pipes or valves.

In addition, we offer corrosion-resistant flanges designed to withstand corrosive environments, providing long-term protection and reliability.

Whether your project requires standard flanges or custom designed flanges, we have the expertise and capabilities to meet your specific needs. Our team of experienced professionals ensures every flange meets the highest quality and performance standards.

At our company, customer satisfaction is our top priority and we are committed to providing excellent products and services. We strive to provide superior flange solutions that meet and exceed our customers' expectations.




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