Our standard range includes ring blanks manufactured from seamless tubes which we can supply from stock at short notice. Choose your individual ring blank measurements from our large selection of alloys and wall thicknesses.

We also offer CNC-turned ring blanks manufactured according to your specifications from a variety of basic shapes.

Advantages

• Reduced processing time
• No filings, which means less waste
• Excellent quality
• Quick delivery
• Low tied-up capital

Ring blanks made from seamless tubes

• Ring size no. 42, 46, 50, 54, 58, 62, 66, 70, 74
  The 420-935 silver alloy (all wall thicknesses) and the 585 gold alloys 131-585 and 137-585 (2.0 and 2.5 mm wall thickness) are also available in ring sizes 44, 48, 52, 56, 60, 64, 68 and 72.
• Note: All ring blanks include one number for processing surcharge.
• Wall thickness: see table
• Ring width in mm: according to customer specifications
• For technical reasons, the actual hardness supplied may vary.

Profile ring blanks made from seamless tubes

• Ring size no. 42, 46, 50, 54, 58, 62, 66, 70, 74
• Wall thickness: max. 3.75 mm
• Ring width: max. 15 mm
• Further ring sizes, wall thicknesses and widths, and profile types on request.

Alloys ring blanks / profile ring blanks

Ref. No.	Alloy	Colour	Hardness supplied HV	Wall thickness in mm
				1.3	1.6	2.0	2.5	3.0	3.5	4.0
112-333	Au 333	red	110	●	●	●	●
650-333	Au 333	yellow	140	●	●	●	●
655-333	Au 333	white Ag	120	●	●	●	●
147-333	Au 333	white Mn	180		●	●	●	●
112-376	Au 376	red	115			●	●
116-376	Au 376	yellow	140			●	●
110-376	Au 376	white Ag	140			●	●
131-376	Au 376-Pd 12	white Pd	170		●	●	●	●
111-585	Au 585	red	120	●	●	●	●	●	●	●
115-585	Au 585	light red	140		●	●	●
122-585	Au 585	rosé	170		●	●	●	●
108-585	Au 585	rich yello	180	●	●	●	●	●	●	●
116-585	Au 585	rich yellow	200	●	●	●	●	●	●	●
121-585	Au 585	rich yellow	190	●	●	●	●	●
119-585	Au 585	greenish yellow	110				●	●
120-585	Au 585	light yellow	115				●	●
136-585	Au 585-Pd 19,5	grey	160	●	●	●	●	●
131-585*	Au 585-Pd 14	white	170		●	●	●	●
137-585*	Au 585-Pd 4	white Mn	140	●	●	●	●	●	●	●
147-585	Au 585	white Mn	170		●	●	●	●	●
111-750	Au 750	red	175			●	●	●	●	●
175-750	Au 750	rosé 4N	160					●	●	●
156-750	Au 750	rich yellow 3N	160			●	●	●
122-750	Au 750	yellow 2N	140	●	●	●	●	●	●	●
119-750	Au 750	greenish yellow	45				●	●
136-750	Au 750-Pd 15.5	grey	200			●	●	●
133-750	Au 750-Pd 13.5	white	135			●	●	●	●	●
137-750	Au 750-Pd 4	white Mn	160	●	●	●	●	●	●	●
147-750	Au 750	white Mn	150		●	●	●	●	●
111-917	Au 917	rich yellow	130			●	●	●	●	●
132-990	Au 990	rich yellow	115			●	●	●	●	●
174-600	Pt 600 WRu	white	220		●	●	●	●	●
173-952	Pt 952 WRu	white	200	●	●	●	●	●	●	●
185-500	Pd 500 WRu	grey	200		●	●	●	●
186-585	Pd 585 WRu	deep grey	180		●	●	●	●	●
189-950	Pd 950 WRu	grey	170		●	●	●	●

Ref. No.	Alloy	Colour	Hardness supplied HV	Wall thickness in mm
				1.75	2.15	2.65	3.15	3.65	4.15
420-935	Ag 935	white	120	●	●	●	●	●	●

Further dimensions and alloys on request.

You can download a brief data sheet for each material by clicking on the Pdf-symbol in respective last column.