Solder ВПр2

Designation

Name The value
Designation GOST Cyrillic ВПр2
Designation GOST Latin BPp2
Transliteration VPr2
By chemical elements ВPr2

Description

Solder ВПр2 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 Cu Li
OST 1 90082-88 22-26 0.1-0.5 5-6 0.8-1.2 Rest 0.15-0.25
Cu is the basis.
According to OST 1 90082-88 the total content of impurities is not more than 0.50%. The lithium content is not determined. Lithium is introduced by the carbonate salt by calculation.

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, copper plating, 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.