Traders said besides sluggish demand from consuming industries, a weak global trend led to decline in copper and nickel prices.
Meanwhile, copper for delivery in three months retreated 0.7 per cent to USD 6,554.25 a tonne on the London Metal Exchange.
In the national capital, copper mixed scrap and nickel (4x4) fell by Rs 2 each to Rs 434 and Rs 1,058-1,059 per kg, respectively.
The following are today's metal rates per kg:
Lead ingot 130, lead imported 128, aluminium ingots 146, Aluminium sheet cutting 147, aluminium wire scrap 149 and aluminium utensils scrap 146.