CADMIUM-BEARING 30% BAG-2A SILVER SOLDER BRAZING RODS WELDING ALLOY RODS MANUFACTURER

Specifications

1. For joining ferrous, nonferrous and dissimilar metals and alloys with close joint clearances.
2. Cadmium-bearing.

30% Ag BAg-2a Silver Solder Brazing Welding Alloy

 

 

Factory No.: HZ-Ag30C

AWS Specification:BAg-2a

Chemical Elements(%):Ag30,Cu27,Zn23,Cd20

Solidus: 607°C

Liquidus:710°C

Processing Temp.702-843°C

Specific gravity: 8.76

Electrical conductivity(% IACS): 31

Electrical resistivity(Michrohm-cm):5.5

Color:Light Yellow

 

DESCRIPTION: 

HUAZHONG HZ-Ag30C is a modification of HZ-Ag35C with a further reduction in silver content resulting in a higher meltingpoint and a longer melting range (85°C). HZ-Ag30Cis used for brazing steel, stainless steel, copper, copper alloys,nickel, nickel alloys orcombinationsof these metals. While its performance is similar to HZ-Ag35C, its broader melting range is helpful where clearances are not uniform. During melting, HZ-Ag30C passes from a solid state toa mushy or plastic state and progressively to a liquid. If heated slowly through this plastic state (607-710°C), the liquid portion may flow from the solid portion. This causes a separation of the alloy into a low-temperaturemelting (fluid) portion and a high-temperature melting (solid) portion. This phenomenon is called liquation. Thehigh temperature melting portion will melt only above the normal brazing temperature of HZ-Ag30C. For thisreason,HZ-Ag30C should be heated rapidly through the melting range.

 

PROPERTIES OF BRAZED JOINTS:

Generally, the joint strength using HZ-Ag30C surpasses the strengths of the base metals. Strength is a function ofthe base metals being joined, type of joint, design of joint, joint clearances and brazing procedures. Therecommended maximum operating temperatures for HZ-Ag30C is up to 204°C(continuous service) and 315°C(intermittent service). 

 

APPLICATIONS:

Typical applications are the joining ferrous, nonferrous and dissimilar metals and alloys with close joint clearances.