What Is C71500 Material?

C71500 Copper Nickel 70/30 (CDA 715) C70600 & C71500, Copper nickel offers excellent corrosion resistance, especially in marine salt water environments. The main, wrought copper-nickel alloys chosen for sea water service contain 10 or 30 percent nickel.

SB 111 C71500 is a standard designation for a copper-nickel alloy, commonly known as 70/30 Cupro-Nickel or Copper Nickel 30.

SB 111: This is the ASME (American Society of Mechanical Engineers) Boiler and Pressure Vessel Code designation for the seamless pipe made from this material.

C71500: This is the UNS (Unified Numbering System) number that uniquely identifies the chemical composition of the copper alloy itself (70% Cu, 30% Ni).

In simple terms, it's a high-performance, corrosion-resistant alloy primarily used in pipe and tubing for demanding environments, especially marine and chemical applications.

C715 copper alloy is also known as 70/30 copper nickel, as it is comprised of 30% nickel. Copper nickel alloy 715 finds its greatest application in areas of high temperatures and pressures combined with high velocity and destructive turbulence.

30 Copper-Nickel

ASTM B171 C71500 (70/30 Copper-Nickel) Plate is a high-strength, corrosion-resistant copper alloy composed of 70% copper and 30% nickel, with small amounts of iron and manganese for enhanced durability.

90-10 AND 70-30 COPPER-NICKEL ALLOYS
The 30% nickel alloy is stronger and can withstand higher seawater velocities but, for most applications, the 90-10 alloy provides good service at a lower cost and of the two alloys tends to be the one that is more widely used.

Gnee is a premier manufacturer and international supplier of comprehensive copper and copper alloy products, committed to delivering excellence in copper tubes, copper sheets, copper plates, copper bars, copper rods, copper wires, and copper strips.

Our Extensive Product Portfolio & Specifications:

Copper Tubes & Pipes:
We supply a full range including **Capillary Tubes, Thin-Walled Copper Tubes, Thick-Walled Copper Tubes, Round Pipes, Square Pipes, Rectangular Pipes, Welded Pipes, Seamless Pipes, Heat Exchanger Tubes, and Condenser Tubes.

Copper Sheets, Plates:
Our flat-rolled products cover Copper Foils, Thin Sheets, Thick Plates, and Circles (Round Plates) in various tempers (O, H) for diverse applications.

Copper Bars, Rods & Profiles:
We offer Round Bars, Square Bars, Hexagonal Bars, and Flat Bars with excellent machinability and strength.

Copper Wires & Strips:
Our lineup includes high-conductivity Bare Copper Wires, Stranded Wires, and precisely manufactured Copper Strips.

Common Alloys & International Standards:

We master a wide array of materials compliant with ASTM, EN, JIS, and GB standards:

Pure Copper: C11000 (ETP Copper), C10200 (Oxygen-Free Copper), C12000 (DLP)

Brass Alloys: C26000 (Cartridge Brass), C27200 (Brass), C28000 (Muntz Metal)

Copper-Nickel: C70600 (CuNi90/10), C71500 (CuNi70/30)

Phosphor Bronze: C51900, C52100, C54400

Serving industries from HVAC/R and plumbing to electrical, automotive, and marine engineering, Gnee provides OEM support, competitive pricing, and reliable bulk supply for your global projects.