The best solder for iron is good tough brass, with a little borax.
143. SOLDER FOR COPPER
Take of brass, 6 parts; zinc, 1 part; tin, 1 part; melt all together, mix well, and pour out to cool.
144. SOLDER FOR STEEL JOINTS
Silver, 19 parts; copper, 1 part; brass, 2 parts; melt all together.
145. HARD SOLDER
Fuse together 2 parts of copper, and 1 of zinc.
146. SOLDER FOR SILVER
Fuse together 5 parts of silver, and 1 part of brass.
147. GOLD SOLDER No. 1