Products » Steel Brazing
These neutral salt formulations are commonly used for steel salt brazing. They may be used for the copper brazing of steel alloys. The choice of salt is determined primarily by matching a given formulation's working range with that of the brazing alloy to be used. Maintenance of neutrality and removal of metallics is performed in the same manner as described under "Salt Bath Rectifier" section.
Steel Brazing
| PRODUCT IDENTITY | MELTING POINT | WORKING RANGE |
| Nu-Sal | 1230 deg F (665 deg C) | 1300-1650 deg F (704-899 deg C) |
| Uni-Hard® IR | 1020 deg F (549 deg C) | 1100-1700 deg F (593-927 deg C) |
| Sta-Hard 45 | 1450 deg F (788 deg C) | 1550-2100 deg F (843-1149 deg C) |
| High Speed 75 | 1750 deg F (954 deg C) | 1900-2400 deg F (1038-1316 deg C) |
NU-SAL The most economical salt for brazing performed within its working range. Silver and brass brazing are commonly done in Nu-Sal. It is non-hygroscopic and relatively non-corrosive to metal and fixtures.
UNI-HARD® IR Used for brazing similarly to Nu-Sal. It is more stable than Nu-Sal in the higher temperature range.
STA-HARD 45 A higher temperature range neutral salt used for brass or copper brazing.
HIGH SPEED 75 Used for highest temperature brazing involving copper, silver, and nickel alloy filler metals.