How strong is a soldered copper joint?

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A soldered four-inch Type L joint has a pressure rating of 440 psi. If the plumber in the field decides to braze that joint rather than solder it, the rating will be reduced to 293 psi — the annealed rating.

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[su_posts posts_per_page=”1″ tax_term=”2703″ order=”desc” orderby=”rand”] In this way, how do you know if a copper solder joint is good?

A good solder joint should have an even band of solder showing all the way around. If you see an area that looks as if it needs more solder, brush a little flux onto the joint. If the joint is still warm, the flux will melt and flow into the void. Then reheat the joint and resolder.

Also Know, what is the strength of solder? The pull strengths are in the range of 70 MPa (10.2 ksi) to 140 MPa (20.4 ksi), which are considerably higher than the bulk tensile strength of Sn-Pb solder, which is 30 MPa (4.4 ksi) [11].

Additionally, can you use too much solder on copper pipe?

Don’t feed too much solder into the joint. It’s tempting to melt a few inches of solder into a joint as extra insurance against leaking. But excess solder can puddle inside pipes, restricting water flow, and can form small balls that break loose and damage faucet valves. Use about 1/2 in.

What happens if you use too much solder?

Repair: Sometimes the excess solder can be drawn off by dragging the tip of a hot iron between the two solder joints. If there is too much solder, a solder sucker or solder wick can help get rid of the excess. Prevention: Solder bridges most often happen between joints with too much solder to begin with.


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