Can I use in copper water supply lines (drinking water)?

This is lead-free solder, but it has silver in the solder which will make it more expensive for a water solder joint. The chemical makeup is Tin 94% and silver 6%. This solder is used most commonly in refrigeration/air conditioning applications. If you want to use for potable water Harris recommends their speedy solder SPDY61 1/8" x 1# spool

Can this be used instead of brazing to to replace a residential fridge compressor

This is can be used instead of brazing if the discharge (high side) line doesn't get too hot. It for sure is good for the suction (low side) line. It was used for many years on all the lines (high & low side) of refrigeration systems using R12 refrigerant with water cooled condensers where high side pressures/temperatures don't go above 125 degrees F.

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⚡ Stay-Brite SB861: Power Your Precision with Every Melt!

OPTIMAL ALLOY BLEND - Expertly formulated tin and silver composition delivers superior conductivity and durability.
TRUSTED INDUSTRY STANDARD - SB861 model is a go-to choice for managers demanding dependable soldering materials in critical projects.
COMPACT PORTABLE PACKAGING - Sized at just over 2.4 inches per side, perfect for on-the-go professionals and tight workspaces.
PRECISION WEIGHT FOR CONSISTENT RESULTS - Exactly 1 lb of premium solder alloy ensures reliable, repeatable performance every time.
CRAFTED IN THE USA FOR QUALITY ASSURANCE - Proudly manufactured by J.W. Harris Company, guaranteeing top-tier craftsmanship and compliance.

The Stay-Brite 8 1/8" 1 lb solder alloy (model SB861) by J.W. Harris Company is a premium tin and silver blend, crafted in the USA. Its compact 2.4" cube packaging and exact 1 lb weight make it ideal for professional-grade soldering tasks, ensuring consistent conductivity and durability for high-stakes projects.

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Manufacturer	J.W. Harris Company
Part Number	SB861
Product Dimensions	5.08 x 5.08 x 5.08 cm; 453.59 g
Item model number	SB861
Material	Tin and Silver
Item Package Quantity	1
Included Components	1 LB
Batteries included?	No
Batteries Required?	No
Item Weight	454 g

Stay-Brite 8 1/8" 1#10009 (348-SB861) Category: Solder Alloys and Fluxes

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