BrazeLet® Ni7DW-9201
The nickel-based brazing alloy BrazeLet BNi7 is a free-flowing material suitable for brazing stainless steels. It is suitable for brazing in vacuum or protective atmospheres (dry hydrogen or argon). It allows brazing at lower temperatures than most of the other nickel-based brazing alloys. It is particularly suitable for brazing deep narrow joints as it maintains the excellent flowability with limited P diffusion into most base materials. It is recommended that gaps do not exceed 30 µm as wider gaps risk the formation of a crack-sensitive brittle centre line. Typical applications for this brazing alloy include thin-walled components such as honeycomb seals, industrial heat exchangers and tubular heating elements for drinking water applications.
The brazing paste BrazeLet Ni7DW-9201 can be used for dispensing applications, typically found on heat exchanger inlet and outlet tubes, housing to core joints and hole plate to tube joints. It can be dispensed by using standard air pressure dispensing units. For better precision, screw dispense units are recommended. The paste sticks on all bevel positions without the need of pre-drying but is easily removed using water. The paste formulation offers the highest metal content of our standard dispensing pastes.
BrazeLet Ni7DW-9201 properties allow reliable application in a wide speed range as a result of the dispensing equipment / automatization as well as the needle diameter. The paste can be delivered in cartridges for use in automated applications or different sized cans for refilling of smaller cartridges for manual applications. For best performance, it is recommended to first stir the paste.
Nominal composition: Ni – 14Cr – 10.1P Solvent type: Water-born |
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