Signature Collection

Description

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Thermo-Quench is a eutectic nitrate/nitrite granular salt mixture that can be used for interrupted or isothermal quenching of austenitized steels. These processes include such heat-treating applications as Austempering, Martempering, or Marquenching. Also, Thermo-Quench is suitable for tempering or “drawing” hardened steels.

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Thermo-Quench is chemically and thermally stable when used within its working range, exceptionally fluid, completely water soluble and has high thermal conductivity. Liquidity (drag-out) at 400°F is approximately 0.065 grams per square inch. The organic anti-caking agent incorporated into Thermo-Quench can interfere with the ability of water additions to increase the molten salt’s quench severity. To prevent this possibility, it is recommended to use Thermo-Quench W/O.

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Thermo-Quench can be used as a quench from any austenitizing medium, except cyanide-base salts. It is not advisable to quench steel parts from temperatures above 1650°F into Thermo-Quench unless the parts are small and separated. For parts austenitized at temperatures > 1650°F, a neutral bath at an intermediate temperature may be employed as a stabilizing medium before the isothermal quench in salt.

Key Properties

• Thermo-Quench is a eutectic nitrate/nitrite granular salt mixture designed for interrupted or isothermal quenching and tempering of austenitized steels, including processes like Austempering and Martempering
• It exhibits chemical and thermal stability within its working range (300 – 1100ºF), is exceptionally fluid, completely water soluble, and has high thermal conductivity
• The product includes an organic anti-caking agent, which may interfere with water additions aimed at increasing quench severity, recommending the use of Thermo-Quench W/O to prevent this issue
• Suitable for use in plain steel pots up to 850°F and requires alloy pots for continuous use at temperatures above this, especially in externally fired or radiant tube furnaces
• Handling precaution include avoiding contamination with cyanide salts to prevent violent reactions and explosions, ensuring parts and fixtures are completely dry before introduction to the bath to avoid splattering, and not exceeding temperatures of 1100°F to prevent rapid decomposition and potential release of toxic gases

Description

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Tempering C-ALHT is a eutectic potassium/sodium nitrate mixture formulated to meet AMS 2821 Class 2. It can be used for the annealing and solution heat treatment of aluminum alloys and other non-ferrous alloys such as Nitinol. Tempering C-ALHT is also suitable for tempering or “drawing” hardened steels.

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Tempering C-ALHT is exceptionally fluid in the molten state, completely water-soluble only requiring tap water to wash off parts and has excellent chemical & thermal stability when used within its working range. It can be used as a quench from any austenitizing media, except cyanide-base salts. It is not advisable to quench steel parts from temperatures > 1650°F into Tempering C-ALHT unless the parts are small and separated. For parts austenitized at temperatures > 1650ºF, a neutral bath at an intermediate temperature should be employed as a stabilizing medium before the isothermal quench in Tempering C-ALHT.

Key Properties

• Formulated as a eutectic potassium/sodium nitrate mixture, it meets AMS 2821 Class 2, making it suitable for the annealing and solution heat treatment of aluminum alloys and other non-ferrous alloys, as well as tempering hardened steels
• Exhibits exceptional fluidity in its molten state, is completely water-soluble for easy part washing, and maintains excellent chemical and thermal stability within its operating range of 480 – 1100°F
• Not recommended for quenching steel parts from temperatures above 1650°F without using a neutral bath as an intermediate step to prevent part damage
• Requires simple steel pots for temperatures up to 850°F, but higher temperatures necessitate alloy pots, especially in externally fired or radiant tube furnaces
• Requires careful handling and storage, including the use of proper protective equipment and dry conditions for parts and fixtures to prevent splattering and contamination, with a specific warning against heating beyond 1100°F to avoid rapid decomposition and potential hazards

Description

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Sta-Hard 17 is a salt mixture containing barium chloride. It is generally used for preheating high speed steel tools or for hardening, annealing and normalizing carbon and alloy steels. Its stability makes it especially suitable for heating alloy tool steels which require high hardening temperatures.

Key Properties

• Sta-Hard 17 is a salt mixture primarily composed of barium chloride, making it suitable for preheating high-speed steel tools and hardening, annealing, and normalizing carbon and alloy steels
• It offers stability at high temperatures, especially suitable for heating alloy tool steels which require high hardening temperatures, with a working range of 1300 – 1900°F
• The salt has a melting point of 1175°F, a density of 155 lbs./ft.3 at 1600°F, and a specific heat of 0.18, appearing white with no vapor pressure
• It emphasizes safe handling and storage, warning against contamination with cyanide salts or organic materials, which can cause violent reactions or explosions
• The disposal of Sta-Hard 17 must comply with federal, state, and local regulations, and precautions include reading the Safety Data Sheet (SDS) for proper disposal and safety equipment recommendations

Description

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High-speed steel (HSS or HS) is a subset of tool steels, commonly used as cutting tool material. It is often used in power-saw blades and drill bits. High Speed 75 is a barium-based salt used for hardening high speed tool steels at temperatures greater than 1900°F. The liquidity (drag-out) of High Speed 75 at 2200°F is estimated at 0.065 grams per square inch.

Key Properties

• High Speed 75 is a barium-based salt designed for hardening high-speed tool steels at temperatures greater than 1900°F, suitable for cutting tool materials like power-saw blades and drill bits
• It has a melting point of 1750°F, a working range of 1900 – 2400°F, and a density of 170 lbs./ft.³ at 2150°F. The product is characterized by its white appearance and has no vapor pressure
• The product should be used in internally heated furnaces, preferably ceramic-lined with totally submerged electrodes, while externally fired metal pots are not recommended due to limited pot life

Description

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800 Neutral Salt is a granular mixture containing barium chloride. Its low melting point and working range make it suitable for ferrous heat-treating operations. These include heating for hardening, cycle and sub-critical annealing, high temperature drawing, and hot quenching of high alloy tool steels within its working range. 800 Neutral Salt is especially suitable as a quenching and tempering medium for high-speed steels.

Key Properties

• The product is a granular mixture containing barium chloride, making it suitable for ferrous heat-treating operations
• It has a melting point of 860ºF and a working range of 925 – 1300ºF, allowing for a variety of heat treatment processes
• Ideal for use in all types of salt bath furnaces, especially submerged electrode furnaces with ceramic lined pots.
• Slightly hygroscopic, requiring parts to be washed soon after treatment to avoid complications from moisture absorption

Description

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Nu-Sal is a barium free chloride mixture with low weight per cubic foot properties and has excellent fluidity within its working temperature range. It is easily washed from oil-quenched work because it is completely water soluble. Also, Nu-Sal is not hygroscopic, so it is less corrosive than other salts to the metal fixtures, electrodes, etc.

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Nu-Sal can be used for all neutral salt bath heating operations. These include austenitizing of carbon and low alloy steels for hardening, reheating carburized steels, annealing and spheroidizing. Nu-Sal is the ideal austenitizing medium for steels to be austempered, martempered, or otherwise isothermally quenched, because its fluidity minimizes drag-out and it dissolves readily in the salt bath quench. It can be used as a pre-heat for high-speed steel tools, replacing barium containing salts if it is desirable to use the preheat bath for austenitizing other types of steel.

Key Properties

• Nu-Sal is a barium-free chloride mixture notable for its excellent fluidity within its operational temperature range and its complete water solubility, facilitating easy removal from oil-quenched work
• It is designed for use in various neutral salt bath heating operations, such as austenitizing of carbon and low alloy steels, reheating carburized steels, annealing, and spheroidizing, making it versatile for different steel treatment processes
• Nu-Sal is non-hygroscopic and less corrosive to metal fixtures, electrodes, etc., compared to other salts, offering a more material-friendly solution in industrial environments.
• Its physical properties include a melting point of 1230ºF, a working range of 1300 – 1650ºF, and a density of 105 lbs./ft.^3 at 1500°F, with a white appearance and no vapor pressure, indicating its stability and safety in use

Description

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15 Rectifier Pellets are used to remove harmful oxide contamination in Nu-Sal baths. Oxides in the bath are created at the air/molten salt interface, where oxygen is absorbed by the salt. Soils on the surface of parts immersed in Nu-Sal can also contribute to oxide contamination. The oxides bond with carbon atoms on the surface of immersed parts; thus, stripping the surface of carbon content, resulting in parts not reaching targeted hardness levels. The pellets eliminate the oxides while adding no sludge, as with first generation rectifiers. 15 Rectifier Pellets will provide rapid and efficient rectification, even in deep baths. Pellets are safe to store, handle, and utilize inexpensive handling equipment.

Key Properties

• Used to eliminate harmful oxide contamination in Nu-Sal baths, ensuring parts reach targeted hardness levels without oxide-induced carbon stripping
• Unlike first-generation rectifiers, these pellets perform oxide removal without adding any sludge to the bath, promoting cleaner operation
• Offers quick and efficient rectification of the bath, even in deep settings, ensuring optimal bath conditions are restored swiftly
• The pellets are safe to store and handle, requiring inexpensive equipment for use, which reduces operational costs and complexity
• The amount of pellets needed is determined by a specific formula considering the sodium oxide content, bath size, depth, and surface area, enabling precise application tailored to the bath’s conditions

Description

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20 Rectifier Pellets are used to remove harmful oxide contamination found in Sta-Hard 45, High Speed 60, 175-S Starting Salt & High Speed 75 salt baths. Oxides in the bath are created at the air/molten salt interface where oxygen is absorbed by the salt. Soils on the surface of parts immersed in these salts can also contribute to oxide contamination. The oxides bond with carbon atoms on the surface of immersed parts; thus, stripping the surface of carbon content resulting in parts not reaching targeted hardness levels. 20 Rectifier Pellets are offered as an effective alternative to existing solid and gaseous processes for maintaining oxide free neutral salt baths used at temperatures between 1900 – 2400°F.

Key Properties

• Rapid, efficient rectification
• Accurate control of rectification
• Non-sludge forming
• Safe to store and handle
• Inexpensive handling equipment

Description

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Molten salt baths are generally recognized as the ideal media for brazing many aluminum assemblies. Dip brazing is widely used in the fabrication of such items as heat exchangers, antennas fixed on satellites, wave guides and aircraft parts. Aluminum dip brazing salt operations offer many advantages over other methods.

These include:

• Quality – Strong joints are produced without harmful stresses or distortion.
• Efficiency – Rapid heating rates to optimal brazing temperatures
• Economy – Inexpensive equipment requiring little floor space.
• Versatility – Assemblies of various sizes and shapes can be brazed simultaneously in the same bath providing selective brazing advantages.

Key Properties

• Alu-Braze® 860 has a melting point of 860°F and a working temperature range of 900 – 1200°F, making it suitable for a variety of brazing temperatures
• It has a density of 106 lbs./ft³ at 950°F and a specific heat of 0.27 Btu/lb. °F, which affects its heat transfer characteristics and how it behaves in the brazing process
• The salt is white with nil vapor pressure, indicating it does not vaporize easily at typical working temperatures, making it stable and safe to use in controlled environments
• Offers better fluidity, greater stability, ease of cleaning, and freedom from sludge compared to other fluxes, enhancing the brazing process’s efficiency and quality
• Requires careful handling due to its molten state, with specific storage conditions recommended to maintain its properties and ensure safety in its application

Description

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Molten salt baths are in widespread use for continuous curing (vulcanization) of rubber extrusions. Salt baths have advantages over alternate curing methods such as oils, hot air, & steam for several reasons:

1. Molten salt has a high heat capacity and rate of heat exchange e.g. – six times that of air allowing for relatively shorter curing times.
2. Salt curing systems are insulated units with low heat losses compared to air or steam.
3. Salt is relatively inert and allows a range of temperatures suitable for the curing of a wide range of rubber extrusions. No swelling or surface attack happens as with alternate methods.
4. Salt is 100% water soluble enabling easy clean-off.

Parcure 275 is an eutectic mixture of nitrate/nitrite based inorganic salts used for this application. It is exceptionally fluid and chemically & thermal stable in the molten state when used within its working range.

Key Properties

• Parcure 275 offers shorter curing times due to its high heat capacity, being six times that of air
• It remains chemically and thermally stable within a temperature range of 300 to 575ºF
• The product is 100% water-soluble for easy cleanup and environmental safety
• Suitable for most polymers with specified temperature limits to prevent degradation
• Non-flammable but a strong oxidizing agent, requiring careful handling and storage away from combustibles

Description

‍No Carb is a water-based masking compound containing copper which is used for the protection of steel surfaces from carburization or decarburization during heating for hardening, carburizing, annealing, normalizing, forging, or rolling. Used in carburizing applications, No Carb can provide an effective stop-off case depth up to 0.12”. It is designed for use in furnaces with or without atmospheres, with pack hardening material or other carburizing materials. It is not suitable for use in molten salt baths or fluidized bed furnaces.

Key Properties

• When properly mixed, No Carb is grey in color with little or no odor.
• Suitable for dipping, painting, or spraying.