18ct Gold

Cape Precious Metals manufactures gold to a purity of 99.99%, through processes and practices approved by the RJC.

Order Codes:

Clear

18ct Y

18ct Y

Alloy Composition   75.2% AU (AG/CU)
Colour   Light Yellow
Melting Range   960 – 990°C
Solders   18ct E,M & H YELLOW
Specific Gravity   15.96
Annealing Colour   Dull Cherry Red

 

Best used for

  • Bench Work
  • Casting
  • Rolling


Hints, Tips & Uses

  • General purpose yellow gold alloy.
  • Widely used by goldsmiths for all applications

18ct R Bench

18ct R Bench

Alloy Composition   75.2% AU (AG/CU)
Colour   Red
Melting Range   890 – 895°C
Solders   18ct E,M & H RED
Specific Gravity   15.9
Annealing Colour   Cherry Red

 

Best used for

  • Bench Work
  • Casting


Hints, Tips & Uses

  • Do not anneal often as cracking can occur. Can be annealled in furnace at 650°C – the time depends on the size of the piece
  • Alternatively, it may be heated to cherry red and quenched from a black heat for maximum ductility

18ct W Nickel

18ct W Nickel

Alloy Composition   75.2% AU (CU/NI/ZN)
Colour   Grey / White
Melting Range   1050°C
Solders   18ct E,M & H WHITE
Specific Gravity   15.9
Annealing Colour   Cherry Red

 

Best used for

  • Bench Work
  • Casting
  • Rolling


Hints, Tips & Uses

  • General purpose white gold alloy
  • Cool metal slowly
  • This metal is magnetic, has good rolling properties & good for bangles

18ct W 10% Palladium

18ct W 10% Palladium

Alloy Composition   75,5% AU (AG/PD/CU)
Colour   White
Melting Range   950°C
Solders   18ct E,M,H White
Specific Gravity   16.2
Annealing Colour   Cherry Red

 

Best used for

  • Bench Work
  • Casting


Hints, Tips & Uses

  • Alloy should be quenched for maximum ductility
  • Casting temperature: 1220°C
  • Must rhodium plate for brilliant white finish

18ct W 12% Palladium

18ct W 12% Palladium

Alloy Composition   75.2% AU (AG/PD/CU)
Colour   White
Melting Range   960°C
Solders   18ct E,M & H WHITE
Specific Gravity   16.2
Annealing Colour   Cherry Red

 

Best used for

  • Bench Work
  • Casting


Hints, Tips & Uses

  • Alloy should be quenched for maximum ductility
  • High casting temperature = 1340°C
  • Must rhodium plate for brilliant white finish
  • Age hardenable alloy – heat to 450°C for 90 minutes

18ct W 12.5% Palladium

18ct W 12.5% Palladium

Alloy Composition   75.2% AU (AG/PD)
Colour   White
Melting Range   960°C
Solders   18ct E,M & H WHITE
Specific Gravity   16.2
Annealing Colour   Cherry Red

 

Best used for

  • Bench Work
  • Rolling


Hints, Tips & Uses

  • General purpose white gold alloy
  • Metal has good setting properties
  • Alloy should be quenched for maximum ductility
  • Must rhodium plate for brilliant white finish

18ct W 13% Palladium

18ct W 13% Palladium

Alloy Composition   75.2% AU (PD/IND/COP)
Colour   White
Melting Range   980°C
Solders   18ct E,M & H WHITE
Specific Gravity  
Annealing Colour   Red

 

Best used for

  • Bench Work
  • Casting
  • Rolling


Hints, Tips & Uses

  • Melts and flows easily
  • Black once melted due to copper content
  • Rolls with a bit more resistance due to copper content
  • Polishes very easily

18ct W 16% Palladium

18ct W 16% Palladium

Alloy Composition   75.2% AU (AG/PD)
Colour   White
Melting Range   1150°C
Solders   18ct E,M & H WHITE
Specific Gravity   16.3
Annealing Colour   Cherry Red

 

Best used for

  • Bench Work
  • Rolling


Hints, Tips & Uses

  • General all purpose white alloy with high ductility
  • Softer alloy which is good for setting
  • Must rhodium plate for brilliant white finish

18ct W Platinum & Palladium

18ct W Platinum & Palladium

Alloy Composition   75.2% AU (PT/PD)
Colour   Superior White
Melting Range   1200°C
Solders   18ct E,M & H WHITE & 960
Specific Gravity   17.43
Annealing Colour   Dull Cherry Red

 

Best used for

  • Bench Work
  • Rolling


Hints, Tips & Uses

  • No age hardening needed
  • Frequent annealing allows for good rolling
  • Excellent properties for tension setting
  • If used for casting, use Phosphate Bond investment powder & centrifugal casting system

orders@capepreciousmetals.co.za

DUE TO SECURITY REASONS,
ALL VISITORS TO MAKE
AN APPOINTMENT BEFORE
VISITING OUR OFFICES

HEAD OFFICE:

(servicing Western Cape & Namibia)
TEL: +27 (0)21 551 2066
FAX: +27 (0)21 552 7792

CPM Building
Link Close
Montague Gardens
7441

JOHANNESBURG:

(servicing Gauteng, Northern
Provinces & Botswana)
TEL: +27 (0)11 334 6263
FAX: +27 (0)11 334 6947

Unit 32
3 Sunrock Close
Sunnyrock Park
Germiston

DURBAN:

(servicing KwaZulu-Natal,
Free State & Northern Cape)
TEL:+ 27 (0)31 303 5402
FAX: +27 (0)31 303 5403

Unit 9, Cypress Park
19 Cypress Drive
GLEN ANIL
4051

PORT ELIZABETH:

(servicing Eastern Cape)
TEL: +27 (0)41 365 1890
FAX: +27 (0)41 365 1901


88 Hurd Street
Newton Park
6045

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