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Cu-Ni 70/30 welded pipes offer high mechanical strength and excellent corrosion resistance, making them perfect for offshore, shipbuilding, and desalination projects. These pipes are produced according to ASTM B111 and B466 standards and are available in rectangular, ERW, and EFW configurations. Small additions of manganese and iron enhance their resistance to high-velocity seawater. The welded construction ensures reliable performance in pressure-sensitive applications while maintaining dimensional accuracy. Available in custom lengths and thicknesses, Cu-Ni 70/30 welded pipes deliver long-lasting performance in harsh environments, including chemical plants, power generation, and marine installations.
Incoloy 825 fasteners are manufactured using ASTM B160 standards, ensuring superior reliability and precision. The alloy primarily consists of nickel, iron, and chromium, with added molybdenum and copper for enhanced resistance to acids and localized corrosion. Titanium is added to stabilize the alloy and prevent intergranular corrosion after welding. This combination delivers mechanical strength, excellent oxidation resistance, and stability at high temperatures. Sunrise Industries manufactures Incoloy 825 fasteners in compliance with both national and international specifications such as ASTM, ASME, DIN, and ANSI. This ensures that clients receive products that meet global quality benchmarks, suitable for use in aggressive operational conditions across various sectors worldwide.
One of the key advantages of Incoloy 825 fasteners is their outstanding resistance to different forms of corrosion. They perform exceptionally well against sulfuric acid, phosphoric acid, nitric acid, and seawater. These fasteners exhibit superior resistance to pitting, crevice corrosion, and stress-corrosion cracking. In addition, they maintain strength and stability at both cryogenic and elevated temperatures, making them suitable for a wide range of environments. Sunrise Industries ensures precise manufacturing, resulting in fasteners with excellent tensile strength, yield strength, and elongation properties. Their ability to withstand both oxidizing and reducing environments makes them a reliable choice for industries dealing with corrosive media and high-pressure conditions.
Cu-Ni 70/30 EFW (electric fusion welded) tubes are designed for heavy-duty marine and industrial applications. These tubes combine excellent corrosion resistance with high mechanical strength, making them suitable for seawater piping, condensers, and heat exchangers. EFW tubes comply with ASTM B111 and B466 standards and are available in customized sizes to meet project-specific requirements. The addition of manganese and iron enhances durability under high-velocity water conditions. Their precision manufacturing ensures leak-free performance, long service life, and low maintenance costs. Cu-Ni 70/30 EFW tubes are widely used in shipbuilding, offshore platforms, and desalination plants.
ASTM B111 Cupro Nickel 70/30 Pipe & Tubes Specification
Grades : Cu-Ni 70/30 (C71500)
Standards: ASTM, ASME and API
Specifications: ASTM / ASME SB 111 / 151 / 466
Size: 1/8″ TO 6” IN OD & NB IN 1/8” to 48”
Length: 3mm to 6000mm
Wall Thickness: 0.15mm and 8mm / Sch.5 to Sch. 160 & Sch. STD, Sch. XS, Sch. XXS
Type: Seamless / ERW / Welded / Fabricated / LSAW Pipes
Form: Round, Square, Rectangular, Hydraulic Etc.
Our Cupro Nickel C71500 Pipe & Tubes conforms to NACE MR0175/ISO 15156.
| Standard | WERKSTOFF NR. | UNS | MIL | SAE | JIS | BS | EN |
|---|---|---|---|---|---|---|---|
| Cu-Ni 70/30 | 2.0882 | C71500 | C-15726 | J461, J463 | - | CN-10-7 | CW-35-42H |
| Grade | Cu | Ni | Pb | Mn | Fe | Zn | P | S | N |
|---|---|---|---|---|---|---|---|---|---|
| Cu-Ni 70/30 | 65 Min. | 29.0 - 33.0 | 0.05 max | 1.0 max | 0.4 - 1.0 | 1.0 max | - | - | - |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2% offset) | Elongation |
|---|---|---|---|---|
| 0.323 lb/in³ at 68 °F | 2260 °F | 50,000 psi – 38 ksi | 20,000 psi – 15 ksi | 30 % |
Cu-Ni 70/30 rectangular pipes and tubes are perfect for industrial, marine, and desalination applications requiring precise dimensions and high corrosion resistance. Manufactured according to ASTM B111 and B466 standards, these tubes provide durability in seawater systems, power plants, and shipbuilding projects. Their antimicrobial surfaces prevent bacterial, viral, and fungal growth, making them suitable for hygienic systems. Customizable in size, shape, and thickness, Cu-Ni 70/30 rectangular tubes ensure efficient heat transfer, structural stability, and long-term reliability. These pipes and tubes are ideal for high-pressure seawater cooling, condensers, and other demanding industrial applications.
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As your one-stop manufacturing partner, Sunrise Industries maintains a complete inventory of ready-to-sell raw materials alongside custom parts fabrication and full engineering services. From prototyping to production, we provide everything at a single location—serving all industrial sectors and transforming manufacturing value chains.
