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Lead-Free Plumbing Solder: Tin with 0.7 % Copper, Cast in Bars
English
neffk (talk) (Wikimedia Commons) · CC BY 2.0
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14. Ukwakira 2026NO
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Lead-Free Plumbing Solder: Tin with 0.7 % Copper, Cast in Bars

Lead has been banned from drinking-water plumbing solder in the US since 1974; tin with a little copper took its place. Tin with 0.7 % copper melts at 227 °C, higher than the old tin-lead. Melt the tin, dissolve the copper in it and cast it into bars, the thick form plumbers use. The picture: soldering a copper pipe joint with a torch.
Hagati
Two hours

Amabwiriza

1

Weigh

Weigh 99.3 parts tin to 0.7 parts copper (step 5). Cut the copper wire into short pieces.

Ibikoresho by'iyi ntambwe:

Igitebo cya bati (etain)Igitebo cya bati (etain)993 g
Insinga y'UmuringaInsinga y'Umuringa7 g

Ibikoresho bikenewe:

Umunzani w'ibiroUmunzani w'ibiro
Ibyuma bikata ibyuma bisanzweIbyuma bikata ibyuma bisanzwe
2

Melt and alloy

Melt the tin in an iron crucible on the forge hearth under a thin layer of charcoal dust (ours). Drop in the copper pieces and stir with an iron rod, keeping it hot, until no copper is left undissolved.

Ibikoresho bikenewe:

Akabindi k'icyumaAkabindi k'icyuma
Iziko (Umuriro wo Gucura)Iziko (Umuriro wo Gucura)
AmakaraAmakara
Uruti rw'icyumaUruti rw'icyuma
Amakoro y'Icyombo GishongeshaAmakoro y'Icyombo Gishongesha
Uturindantoki two gukomeza ibyumaUturindantoki two gukomeza ibyuma
Amadarubindi y'umutekanoAmadarubindi y'umutekano
3

Cast bars

Skim off the charcoal and pour the alloy into a warmed ingot mould. Knock the bars out when cold.

Ibikoresho bikenewe:

Imbumbe yo gusukamo icyuma gishongeyeImbumbe yo gusukamo icyuma gishongeye
Amakoro y'Icyombo GishongeshaAmakoro y'Icyombo Gishongesha
Uturindantoki two gukomeza ibyumaUturindantoki two gukomeza ibyuma
Amadarubindi y'umutekanoAmadarubindi y'umutekano
4

Label

Scratch a mark on each bar so it is never mixed with lead solder.

Ibikoresho bikenewe:

Uruti rw'icyumaUruti rw'icyuma
5

Tin and copper

Gupakira ikaye ya Jupyter…

Ibikoresho

2

Ibikoresho bikenewe

10

Iki gishushanyo gikora

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Agateganyo

Umutobe wo guhuza imiyoboro udafite isasu

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Blueprint zijyanye

Izi blueprint zisangira ubumenyi — uburyo, ibikoresho cyangwa amahame

Making Tin-Lead Solder — The Ancient Alloy That Joins Metals Without a Forge
Akaga

Making Tin-Lead Solder — The Ancient Alloy That Joins Metals Without a Forge

na PeterSE

Kera

58
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Copper Wire Drawn Through a Drawplate

Copper Wire Drawn Through a Drawplate

na ForgeNO

Ubucuzi bw'Ibyuma

50
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