- Joined
- Mar 26, 2002
- Messages
- 3,397
I finally got prompted to do a bit of googling on 'white metal'.
Here's an industry ref to nickel-silver / German-silver:
http://www.ballardbrass.com/nominal-chemical-composition.html
'white metal' halfway down.
" Where 10 percent or more by weight of the base metal in an article of hollow ware is pure nickel, such base metal may be identified with the following expressions:
"nickel-silver".
"nickel-argent".
"N.S.".
Where 90 percent or more by weight of the base metal in an article of hollow ware is tin, such base metal may be identified with the following expressions:
"britannia metal".
"métal anglais".
"white metal".
"métal blanc".
"B.M.".
"W.M."."
At the same time:
"White Metal Alloy -- For jewelers, white metal (babbit) alloy is tin and antimony."
"White Metal: alloys usually containing antimony alloyed with Tin, Copper or Lead"
" Statistics have stated that white metal allergies have increased by 40% during the last five years, with nickel being the main cause"
"Pewter includes any of the numerous silver-gray alloys of tin with various amounts of antimony, copper and sometimes lead. Because of health hazards, lead is seldom used in pewter today. Pot metal and white metal are terms for tin-based alloys used in low temperature casting of costume jewelry components. White metal castings are usually three-dimensional rather than flat and are often plated. The exact composition of white metal varies, because each casting foundry and shop uses its own proprietary formula."
"*White Metal.
_ Melt together 10 oz. of lead, 5 oz. of bismuth, and 4 drs. of regulus of antimony.
Another.
_ Melt together 2 lbs. of regulus of antimony, 8 oz. of brass, and 10 oz. of tin.
*Common Hard White Metal._
Melt together 1 lb. of brass, 1 1/2 oz. of spelter, and 1/2 oz. of tin."
"White Metal Alloy
A name given to a range of alloys usually containing antimony alloyed with tin, copper or lead to produce a white silvery metal used in the manufacture of medallions."
"pot metal - an alloy of copper and lead used especially for making large pots"
"Gray metal also called white metal: a general term designating various soft metals. The most consistent ingrediants are lead, tin, cadmium & bismuth. Commonly known as pot metal, moderately corrosion resistant."
"Secondary tin is recovered from high tin alloys such as pewter, white metal bearing alloys and solder by fire refining methods. The principal alloying elements, which may need to be removed when refining scrap, are antimony, arsenic, copper, iron, lead and nickel."
"looking for this composition, as far as I know pot metal is a zinc based alloy. I also think it is a American word ............ I found an old reference to an alloy called Bidery metal (from Hyderabad, India) containing 90% zinc with a balance of tin, copper and lead."
Hmmm......need to research bidery metal sometime.
"whereby molten lead alloy is poured into mold, which is then inverted leaving a thin layer of cooling metal adhering to its surface. Pot metal toys, as they are commonly called,"
Basicly summed up by:
"Pot Metal: Any alloys which do not have gold, silver, or platinum as a component. Also called White Metal"
Or base metal.
"White Metal: Any combination of alloys of nonprecious metals such as lead and tin. Also called "Pot Metal"."
And:
"The term "pot metal" has historically been used to name a mixture of unquantified, low-melting point metals (including, usually, tin) that have been used for casting small objects........
.........White metal is usually 92 percent tin (Sn) and 8 percent antimony (Sb). This is the "pot metal" mentioned above."
"Base metal, pot metal, white metal
Any combination of alloys of non-precious metals."
"the use of a white metal alloy of aluminium,"
------So, almost, whatever scrap metal is available to melt together.
And if that's not enough:
"Low grade cast iron is often referred to as "pot metal"."
With specific reference to India & Nepal I found:
"The age-old art of creating utility objects using silver has evolved into the making of similar creations of white metal. The internal structure of the object is made using wood and then wrapped with sheets of oxidized white metal (German silver)"
"White metal can be tin and aluminum alloys, is very light weight, has a green, whitish cast, and breaks easily. It does not polish up like silver, nor really look like silver to the trained eye. Much of the new costume and market ethnic jewelry is made with white metal. These cheap metal alloys can also dipped into a silver metallic paint, which is shiny when new and pretended to be silver by the manufacturers and the subsequent sellers."
------Also references to white metal sheet sometimes
laminated over a thin plate of steel to provide strength.
So, the outside would be white metal,
but it would test magnetic.
Congratulations if you read all the above.
Here's an industry ref to nickel-silver / German-silver:
http://www.ballardbrass.com/nominal-chemical-composition.html
'white metal' halfway down.
" Where 10 percent or more by weight of the base metal in an article of hollow ware is pure nickel, such base metal may be identified with the following expressions:
"nickel-silver".
"nickel-argent".
"N.S.".
Where 90 percent or more by weight of the base metal in an article of hollow ware is tin, such base metal may be identified with the following expressions:
"britannia metal".
"métal anglais".
"white metal".
"métal blanc".
"B.M.".
"W.M."."
At the same time:
"White Metal Alloy -- For jewelers, white metal (babbit) alloy is tin and antimony."
"White Metal: alloys usually containing antimony alloyed with Tin, Copper or Lead"
" Statistics have stated that white metal allergies have increased by 40% during the last five years, with nickel being the main cause"
"Pewter includes any of the numerous silver-gray alloys of tin with various amounts of antimony, copper and sometimes lead. Because of health hazards, lead is seldom used in pewter today. Pot metal and white metal are terms for tin-based alloys used in low temperature casting of costume jewelry components. White metal castings are usually three-dimensional rather than flat and are often plated. The exact composition of white metal varies, because each casting foundry and shop uses its own proprietary formula."
"*White Metal.
_ Melt together 10 oz. of lead, 5 oz. of bismuth, and 4 drs. of regulus of antimony.
Another.
_ Melt together 2 lbs. of regulus of antimony, 8 oz. of brass, and 10 oz. of tin.
*Common Hard White Metal._
Melt together 1 lb. of brass, 1 1/2 oz. of spelter, and 1/2 oz. of tin."
"White Metal Alloy
A name given to a range of alloys usually containing antimony alloyed with tin, copper or lead to produce a white silvery metal used in the manufacture of medallions."
"pot metal - an alloy of copper and lead used especially for making large pots"
"Gray metal also called white metal: a general term designating various soft metals. The most consistent ingrediants are lead, tin, cadmium & bismuth. Commonly known as pot metal, moderately corrosion resistant."
"Secondary tin is recovered from high tin alloys such as pewter, white metal bearing alloys and solder by fire refining methods. The principal alloying elements, which may need to be removed when refining scrap, are antimony, arsenic, copper, iron, lead and nickel."
"looking for this composition, as far as I know pot metal is a zinc based alloy. I also think it is a American word ............ I found an old reference to an alloy called Bidery metal (from Hyderabad, India) containing 90% zinc with a balance of tin, copper and lead."
Hmmm......need to research bidery metal sometime.
"whereby molten lead alloy is poured into mold, which is then inverted leaving a thin layer of cooling metal adhering to its surface. Pot metal toys, as they are commonly called,"
Basicly summed up by:
"Pot Metal: Any alloys which do not have gold, silver, or platinum as a component. Also called White Metal"
Or base metal.
"White Metal: Any combination of alloys of nonprecious metals such as lead and tin. Also called "Pot Metal"."
And:
"The term "pot metal" has historically been used to name a mixture of unquantified, low-melting point metals (including, usually, tin) that have been used for casting small objects........
.........White metal is usually 92 percent tin (Sn) and 8 percent antimony (Sb). This is the "pot metal" mentioned above."
"Base metal, pot metal, white metal
Any combination of alloys of non-precious metals."
"the use of a white metal alloy of aluminium,"
------So, almost, whatever scrap metal is available to melt together.
And if that's not enough:
"Low grade cast iron is often referred to as "pot metal"."
With specific reference to India & Nepal I found:
"The age-old art of creating utility objects using silver has evolved into the making of similar creations of white metal. The internal structure of the object is made using wood and then wrapped with sheets of oxidized white metal (German silver)"
"White metal can be tin and aluminum alloys, is very light weight, has a green, whitish cast, and breaks easily. It does not polish up like silver, nor really look like silver to the trained eye. Much of the new costume and market ethnic jewelry is made with white metal. These cheap metal alloys can also dipped into a silver metallic paint, which is shiny when new and pretended to be silver by the manufacturers and the subsequent sellers."
------Also references to white metal sheet sometimes
laminated over a thin plate of steel to provide strength.
So, the outside would be white metal,
but it would test magnetic.
Congratulations if you read all the above.
Oops, Sorry, Dean and Pen , not with it today.
