Solder ВПр7

  • Solder VPr11-40H
  • Solder VPr24
  • Solder VPr36
  • Solder VPr42
  • Solder VPr7
  • Solder PZHK-35

    • Designation

    Name The value
    Designation GOST Cyrillic ВПр7
    Designation GOST Latin BPp7
    Transliteration VPr7
    By chemical elements ВPr7

    Description

    Solder ВПр7 applies: for soldering of parts and assemblies from high temperature alloys and stainless steels.

    Standards

    Name Code Standards
    Sheets and strips В53 OST 1 90082-88

    Chemical composition

    Standard Mn Si Ni Fe B Nb Ca
    OST 1 90082-88 32-35 0.8-1.2 Rest 0.1-0.8 0.07-0.2 2-2.5 10-11
    Ni is the basis.
    According to OST 1 90082-88 the total content of impurities is not more than 0.20%.

    Technological properties

    Name The value
    Macrostructure and pollution Surface bands on OST 1 90082-88 should be bright, clean with no bubbles, sunsets, cracks, cavities, metallic and non-metallic inclusions and delaminations, and to meet the standards of VIAM. There may be dents, injections, removalist, prints from the rolls, if in the control the sweep depth of these defects does not display bands for the limit deviation on thickness. Allowed the presence of traces of etching strips of alloys, tint, local darkening and stains from water. The edges and ends of the strips of solder should be smooth. Presence of cracks on the edge of edge no deeper than 2 mm. in not more than 10 PCs for one meter length of the strip.
    Particularities of production of goods Band of solders on OST 1 90082-88 supplied in cold-worked condition.