Henley's Twentieth Century Formulas, Recipes and Processes - Unknown

I.—	Copper	58 parts
I.—	Zinc	42 parts
II.—	Sheet brass	85.42 parts
II.—	Zinc	13.58 parts

Karmarsch’s Composition.—

III.—	Brass	7 parts
III.—	Zinc	1 part
IV.—	Zinc	49 parts
	Copper	44 parts
	Tin	4 parts
	Lead	2 parts

Prechtl’s Composition.—

V.—	Copper	53.3 parts
	Zinc	43.1 parts
	Tin	1.3 parts
	Lead	0.3 parts

All these hard-solder compositions have the fine yellow color of brass, are very hard, and can be fused only at high temperatures. They are well adapted for all kinds of iron, steel, copper, and bronze.

Solders which fuse at somewhat lower temperatures and, therefore, well adapted for the working of brass, are the following:

VI.—	Sheet brass	81.12 parts
VI.—	Zinc	18.88 parts
VII.—	Copper	54.08 parts
VII.—	Zinc	45.29 parts
VIII.—	Brass	3 to 4 parts
VIII.—	Zinc	1 part

A solder which is valuable because it can be wrought with the hammer, rolled out, or drawn into wire, and because it is tough and ductile, is the following:

IX.—	Brass	78.26 parts
	Zinc	17.41 parts
	Silver	4.33 parts