HV
190–220Higher hardness
Reach target Vickers hardness with repeatable, application-led formulations.
PRECISION MASTER ALLOYS
Stronger gold.
Cleaner making.
Engineered master alloys for jewellery that casts sharply, forms confidently and keeps its colour.
Made for jewellery manufacturers, refiners and technical workshops worldwide
210+HV
hardness potential
04tones
colour families
04routes
process routes
1day
technical response
MARKET REFERENCE
Precious Metal Quotations
Reference values for the metals that shape fine jewellery. Every commercial quotation must be confirmed directly with KINGOLD LIMITED.
— · ET US EASTERN TIME
Indicative display only — not a tradable offer.
EXTRAORDINARY MATERIAL
Science in the melt.
Confidence at the bench.
Reduce cracking risk through casting, stamping, turning and diamond cutting.
MATERIAL ADVANTAGE
More performance. Less precious metal.
Precisely balanced additions improve the alloy matrix—so you can meet demanding production targets without overusing gold.
◇
04Better workability
Reduce cracking risk through casting, stamping, turning and diamond cutting.
◐
04Colour freedom
Build consistent yellow, white, red and rose gold across production runs.
↓
AuLower gold input
Maintain process performance while optimising precious-metal use and yield.
PROOF IN THE METAL
Hardness you can measure
Illustrative Vickers hardness ranges for a representative 18K jewellery alloy after comparable processing. Final values depend on formulation and treatment.
ASTM E384 · VICKERS HARDNESS
25020015010050
Typical HV range · comparative guidance
COLOUR SYSTEM
One partner. Every signature tone.
COLOUR IS A TECHNICAL PROPERTYAu 750
YG-18
Yellow gold
AU 750WG-18
White gold
AU 750RG-18
Red gold
AU 750RO-18
Rose gold
AU 750LOCAL FORMULATION TOOL
Plan in the unit your market uses.
Switch between grams, troy ounces, tael and tola. Enter your finished batch target to view an indicative 18K metal split.
QUOTE CURRENCY
Indicative 18K formulationAu 750 / 18K
Pure gold750 g
Master alloy250 g
For planning only. Exact charge sheets depend on alloy grade, process and recovery allowance.
BUILT FOR THE BENCH
From melt to final finish
Cast
Fluid fills. Clean surfaces.
Form
Stable rolling and stamping.
Machine
Confident turning and cutting.
Finish
Colour that holds its character.
TELL US YOUR TARGET
A better alloy starts with your process.
Share your karat, colour, production method and hardness target. Our team will help define the right master alloy.