The paste flux tends to leave tacky residue that is difficult to clean off. When the parts are hot enough the solder will instantly turn to liquid when it touches the metals.
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Make sure the surfaces fit flush.
How to solder stainless steel. Kester 817 must be used with solid wire or it can be used in addition to acid core solder. Remove the excess flux with warm water and a wire brush. Fluxing action begins apply solder.
Kester 817 flux is typically brushed on the stainless and then the solder is reflowed using standard reflow procedures with an iron or a torch. This concludes the discussion of soldering to stainless steel. Thorough cleaning of the steel surface in the joint area is the key to successful soldering.
Heat the parts with a torch until the solder flows onto the joint. How to silver solder stainless steel. Silver solder will not fill gaps.
How to solder stainless steel steps prepare the metal to be soldered. You can even use solder to join copper or brass to stainless steel you just need the proper flux. This will coat the stainless steel component with a layer of the filler alloy.
Ive broken down the process of soldering copper to stainless steel fittings in a step by step format below that should make it super easy to follow. But there are a couple tips to keep in mind to make it work right the first time. First way of pre tinning a stainless steel component solder pot method dip the component in no.
Dip the fluxed component into a solder pot with molten solder sn63pb37 sn965ag35. Phosphoric acid was used. Below is a video of soldering stainless steel to copper and then testing the joint for strength.
Allow tinned component to cool off so solder can harden. Beachfront celebration latinesque by kevin macleod is licensed under a creative commons attribution license ht. Observe the solder deposit.
Use a liquid flux instead of a paste flux. Oil and grease may be removed with solvents and wire brushing with stainless steel brushes or abrading with emery cloth can be used to eliminate other forms of contamination leaving a bright metallic surface. Hold your parts together with wire or clamps.
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