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What is the cost of copper roofing?
Last "lead coated copper" roof I installed was $1,250.00 per Sq foot using 14 Oz copper with 40 -60 solder non acid flux
Is brass the same thing as copper?
Depends on what the usage is do you want YELLOW Brass 60% Copper 40% Zinc Or do you want RED BRASS? 85% Copper 15% Zinc
What is the capacity of 8 gauge wire?
A #8 copper wire with an insulation factor of 75 or 90 degrees C has an ampacity of 45 amps. A #8 wire with an insulation factor of 60 degrees C has an ampacity of 40 amps.
Can a magnet pick up a coin that is 60 percent silver and 40 percent copper?
No. Magnets can only attract coins with high amounts of nickel and/or steel. It cannot even attract common cupro-nickel (75%, 25%) coins.
What size copper wire for 60 amp HVAC?
#6 Awg with #10 Ground
What metal contains 60 percent copper and 40 percent zinc?
Brass - Aich's brass contains 66.6% copper and 36.58% zinc, the balance tin and iron. Muntz brass contains 60% copper and 40% zinc with a trace of iron and is used as a lining on boats
What is a 1966 Kennedy half dollar made of?
40% silver 60% copper
Is 60 tin and 40 lead the right percentage in solder?
yes. the metals present (including % composition) is: - 40% lead - 60% tin
Whats bronze made of?
Bronze is an alloy (metallic mixture) of about 60% Copper, a lot of Tin and some (or less) Zn, Pb, Ni
What is metal is made with 60 percent copper and 40 percent zinc?
Muntz metal (see link).
How much silver is in 1960s US coins?
It depends on their dates and denominations.All cents were made of bronze, an alloy of 95% copper with tin and/or zinc.Up till 1964 dimes, quarters, and half dollars were made of 90% silver and 10% copper.Starting in 1965, dimes and quarters were made of copper-nickel, with no silver. Half dollars were made of 40% silver and 60% copper.In 1971 half dollars were changed to the same copper-nickel composition as dimes and quarters.
What percentage of tin is in solder?
'Standard' solder is 60% tin, and 40% lead. There are other solders available (silver for use in jewellery etc)
What is the percentage of copper and zinc in brass sheet?
The amount of copper and zinc in brass vary considerably depending on the type of brass. Most types of brass can be made into sheet form. Most brass is about 30-40% zinc and about 60-70% copper.
How much of an alloy that is 20 should be mixed with 100 ounces of an alloy that is 70 copper in order to get that 40 copper?
40 parts of 20 % plus 60 parts of 70 %
What is an alloy - is brass an alloy?
An alloy is a mixture of two or more different metals. The metals in an alloy aren't chemically bonded together as molecules. Brass is an alloy, it is a mixture of copper and zinc. Different types of brass are made for different uses, the copper normally represents between 60 and 70% of the mix, and zinc between 30 and 40%. They may also contain traces of tin and iron.
Is a 1968 half dollar made of pure silver?
No circulating U.S. coins were ever made of pure silver. It's too soft. Up to 1964 U.S. silver coins had 10% copper in them for hardness. 1965 to 1969 halves were made of 40% silver and 60% copper, while dimes and quarters from 1965 onward were and still are made of copper-nickel. Halves were converted to copper-nickel in 1971.
Is brass an alloy of copper and iron?
NO=Yellow brass 60% COPPER 40% Zinc=RED Brass 85% Copper 15 % Zinc=Notice no ferrous metals used=
