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excello
11-02-2013, 10:10 AM
I have a couple of bars of solder .

One is marked National Lead Co. 888.

The other is marked KS&S Co. Special Wiping Solder.

Anyone know the tin content / alloy of these ?

Thanks
500MAG
11-02-2013, 10:20 AM
If you have a way of testing the hardness this link may help:
http://www.lasc.us/CastBulletNotes.htm
runfiverun
11-02-2013, 10:34 AM
wiping solder is usually in the 63/37 area.
imashooter2
11-02-2013, 10:34 AM
Wiping solder is typically 38-62 or 40-60. The other bar, I can't help.
Defcon-One
11-02-2013, 05:43 PM
I agree with both posts. Wiping solder was use on car bodies it was high Lead and low Tin. As in 38-40% Tin.

No idea on the 888 bar.
GlocksareGood
11-02-2013, 07:55 PM
Wiping solder was also used on telephone and power cable lead splices. The stuff we use on lead power cables is 40/60. Anything higher than 40% tin was generally not used as it was brittle.