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A Closer Look: Weld Neck Stub Ends CuNi10Fe1Mn DN 20/OD 25 PN10/16 Cuni 90/10 Backing Flanges

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December 04, 2025
Category Connection: Copper Nickel Flange
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Tags:
#C70600 Copper Nickel Flange #300LB Copper Nickel Flange #C71500 socket weld flange
Brief: In this video, we take a closer look at Weld Neck Stub Ends made from CuNi10Fe1Mn (Cuni 90/10). You'll see a detailed examination of these DN 20/OD 25 PN10/16 backing flanges, including their construction, connection types, and the rigorous testing they undergo to ensure reliability in demanding applications.
Related Product Features:
  • Manufactured from CuNi10Fe1Mn (Cuni 90/10) copper-nickel alloy for excellent corrosion resistance.
  • Designed to DN 20/OD 25 dimensions with PN10/16 pressure ratings for reliable performance.
  • Produced using forging, heat treatment, and machining techniques for superior strength and durability.
  • Complies with multiple international standards including ASTM B151, ASME SB151, DIN, and EN.
  • Available with various flange face types such as Raised Face (RF), Ring Type Joint (RTJ), and Flat Face (FF).
  • Suitable for connecting pipes and tubes in chemical, petroleum, shipbuilding, and power industries.
  • Backed by material test certificates as per EN 10204 3.1 and NACE MR0103/MR0175 standards.
  • Offers specialized configurations including equal and reducing setups to meet specific project requirements.
Faqs:
  • What international standards do these Copper Nickel Flanges comply with?
    Our Copper Nickel Flanges comply with a wide range of international standards including ASTM B151/ASME SB151, ANSI B16.5, DIN standards (2527, 2566, etc.), BS4504, EN-1092, JIS B2220, and GOST12820, ensuring global compatibility and quality assurance.
  • What are the main applications for these Weld Neck Stub Ends?
    These Weld Neck Stub Ends are primarily used to connect pipes and tubes in demanding industries such as chemical processing, petroleum refining, shipbuilding, metallurgy, gas distribution, and power generation, where corrosion resistance and reliability are critical.
  • What testing and certification do you provide for these flanges?
    We provide comprehensive Material Test Certificates as per EN 10204 3.1 and 3.2, along with test certificates certifying NACE MR0103 and NACE MR0175 standards. Our testing includes direct-reading spectrograph analysis, hydrostatic testing, X-ray detection, ultrasonic flaw detection, and magnetic particle detection to ensure product integrity.
  • What delivery time can be expected for these products?
    For in-stock items, delivery typically takes 5-10 days. For custom orders or items not in stock, delivery time is generally 15-20 days, depending on the quantity and specific requirements of the order.
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