US 1653630 A
Description (OCR text may contain errors)
Patented Dec. 21,1927.
UNITED STATES PATENT OFFICE.
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' v COLLINS, or new $031!, N. Y.
No Drawing. Application flled Ieb ruary 85, 1922, serial'llfo. 589,098. Renewed Kay 18, 1927.-
This invention relate'sto alloys. An object of this invention is to provide a non-ferrous alloy havin metallic properties generally but which is ee from substantial attack by sulphuric, nitric and hydrochloric acids, ammonia (chloride, acetic acid, chlorine, ammonia, mine waters, alkalies, also free from attack by sulphurous fumes and 1 the'gasesevolved in the production, refining and manufacturing of oils, and also. free from attack by common hypo-chlorites and hypo-sulphites.
Pursuant to my invention, the alloy comprises nickel, tungsten, chromium, man a- 1 .nese and'magnesium, the nickel'contenteing of relatively high "proportion relative'to tungsten and chromium,-'the manganese con-" tent being less than the tungsten (or: chromium content, and the magnesium content of relatively low proportion' relative to tung sten and chromium.
In the various forms of the invention, thenickel content varies within the range .of
to 65 per cent,.the tungsten content from'15 to per cent,-*the "chromiumrcontent 'from 15 to 30 per cent, the man anese content from 1 to 8 percent and t e magnesium from 5 to one-half fof one per cent. .The nickel content preferably. exceeds the sum of the content of tungsten and the content of chromium. v The nickel content of the alloy is added. in the form of a nickel containing ingredient or ingredients free from sulphur.
' The alloy is formed by taking ingredients embod in the abovei'metalsrespectively in metallic iorm and. heating ,the. mixture,
whereupon the metal contents of nickel tul'lg sten, chromium, manganese and magnesium 4 are merged into an alloy. I v
The-most preferred methodof forming the alloy is by taking the commercially pure metals in the'proportions as above named and melting the same to obtain an inter- 4 mixed molten mass,. which upon cooling yields the solid alloy of-the above constitu- -of the tungsten andchromium contents, the
tungsten and chromium contents being substantially equivalent; the manganesecontent being less than each of the tungstenand chromium contents and. the magnesium content being less than the manganese content. 'The alloy possesses .metallic' pro erties, but is substantially free from attack y sulphuric acid, or by nitric acid, or byhydrov chloric acid. Thealloy is also free from attack by sulphurous fumes, lime water,-6 chlorine and the gases created in the distillin'g and-refining of crude petroleum and other mineral oils." The alloy also. free from attack by calcium and other common commercial hypo-chlorites and-by and other 5 common commercial hyposulphites.
I I claim: 1 p
1. in alloy consisting ofnickel in the proportion of from jthi' ty percent to sixty-five percent; of tungsten in the proportion of train fifteen? percent to forty percent; of.
chromium'fin the proportion of fromfifteen percent to thirty percent; of managanese in the proportion offrom one" percent toeight 7 percent; and, of magnesium in the rtipon" tion of from five-percent to one-hal of .one percent.
, 2. 'An alloy consisting of nickel in the proportion of. from thirty percentt0 sixty-five, percent; of tungsten and chromium insubstantially' equivalent proportion to one'another; of manganese in theproportion of from one percent to eight percent; and of magnesium'inthe proportion of from five 5 'pe'rcent jto' one-half percent, the aforesaid proportions totalling one hundredpercenh In testimony whereof I.have' signed this specification this 24th of February, 1922.
WARD KIAM. I