Gold ingots are manufactured by processing of the copper slime formed during copper electrolytic refinery. Due to the unique gold refining process, gold has very high-purity.

Gold ingots are manufactured in grade rating as ZlA-1P, ZlA-1, ZlA-2, ZlA-3.

Chemical composition:

Grade	Mass fraction, %
	Au, min	Impurity, max, %
		Ag	Pt	Pd	Rh
ZlA-1P	99.995	0.0035	0.0005	0.0005	0.0005
ZlA-1	99.99	0.0050	0.0010	0.0030	0.0010
ZlA-2	99.98	0.0150	0.0050	0.0050	0.0010
ZlA-3	99.95	0.0350	0.0050	0.0100	0.0020

 

Grade	Mass fraction, %
	Impurity, max, %
	Cu	Pb	Fe	Zn	Bi	Sn	Mn
ZlA-1P	0.0005	0.0005	0.0005	0.0005	0.0005	0.0005	0.0005
ZlA-1	0.0010	0.0010	0.0010	0.0010	0.0010	0.0010	0.0005
ZlA-2	0.0050	0.0050	0.0010	0.0010	0.0010	0.0010	0.0005
ZlA-3	—	—	—	—	—	—	—

 

Grade	Mass fraction, %
	Impurity, max, %
	Si	Mg	Cr	Ni	Sb	Total
ZlA-1P	0.0010	0.0010	0.0005	0.0005	0.0005	0.005
ZlA-1	0.0030	0.0030	0.0005	0.0005	0.0010	0.01
ZlA-2	—	—	0.0005	0.0005	0.0010	0.02
ZlA-3	—	—	—	—	—	0.05

Product form and packaging

The gold ingot surface should be free of beadings, burrs, scratches, grease stains or other foreign inclusions.

On the front surface of the gold ingot is allowed presence of scraping areas with a depth of no more than 1 mm. and presence of concavity with a depth of no more than 5 mm. as a result of shrinkage during metal crystallization.

Each ingot is subject to surface inspection, marking and weighing. The weight of ingot shall be within the range 11 to 13.3 kg. The ingots are manufactured in form of truncated pyramid. Upon agreement with the customer it is possible to manufacture other ingots in term of shape, weight and dimensions.

Video

Certification

Send a request

Find out more in our articles