NiCopp® is a nickel-copper alloy brake tubing that meets SAE Standard J1047 and ISO 4038; meeting all international and U.S. requirements for brake tubing. This alloy is approximately 9.2% nickel, 1.4% iron, 0.8% manganese, and 88.6% copper. NiCopp® therefore has the strength and structural integrity of steel lines but with the added benefit of being much more corrosion resistant. NiCopp® is also easier to bend and form than steel tubing. NiCopp® is considered the super-premium brand in brake lines and should be considered where the underbody of the vehicle is subjected to the harshest environments, where the longest life-span for lines is required, and/or where direct OEM replacement is desired. – NiCopp® Does Not Rust or Corrode – DOT Approved for Hydraulic Brake Systems.