Gold Combi Bars are precision-minted gold bars engineered with pre-scored break lines, allowing a single bar to be manually separated into multiple standardized gold units without cutting or melting.
They combine the cost efficiency of larger bars with the liquidity and flexibility of small-denomination gold, making them a preferred format for retail investors, wealth planners, and portable gold holdings.
Chemical Composition
| Element | Typical Content |
|---|---|
| Gold (Au) | 99.99% (4-nines fine) |
| Silver (Ag) | Trace (ppm) |
| Copper (Cu) | Trace |
| Other Elements | Trace |
✔ No intentional alloying
✔ Meets LBMA and refinery-grade purity standards
Key Physical Properties
| Property | Value |
|---|---|
| Density | 19.30 g/cm³ |
| Melting Point | 1,064 °C |
| Thermal Conductivity | ~318 W/m·K |
| Electrical Conductivity | ~70% IACS |
| Coefficient of Thermal Expansion | 14.2 × 10⁻⁶ /K |
| Magnetism | Non-magnetic |
| Corrosion Resistance | Excellent |
Mechanical Properties
Combi bars are high-purity gold, but precision rolling and scoring locally modify mechanical behavior to ensure controlled separation.
| Property | Typical Range |
|---|---|
| Hardness (surface) | 30 – 40 HV |
| Tensile Strength | 150 – 220 MPa |
| Yield Strength | ~110 MPa |
| Elongation | 30 – 40% |
| Fracture Behavior | Controlled along score lines |
Strengthening & Metallurgical Behavior
Crystal Structure: Face-Centered Cubic (FCC)
Strengthening:
✔ Work hardening from rolling and minting
✔ Engineered stress concentration at score lines
❌ No alloy strengthening
❌ No heat-treatment response
Mechanical weakness at score lines is a designed feature, not a metallurgical defect.
Metallurgical Characteristics
✔ Uniform rolled grain structure
✔ Extremely low internal porosity
✔ Precisely engineered fracture zones
✔ Homogeneous chemistry across all segments
Refining & Processing
Manufacturing Process:
Doré refining → slab casting → hot & cold rolling →
precision stamping → micro / laser scoring →
high-pressure minting → unit marking →
assaying & sealed packaging
Key Processing Challenge:
Balancing fracture control with durability during handling and transport
Available Forms
✔ 50 × 1 g (50 g total)
✔ 20 × 1 g (20 g total)
✔ 10 × 1 g (10 g total)
✔ 100 × 1 g (100 g total)
Packaging:
Tamper-evident CertiCards
Serialized assay certificates
Vacuum-sealed blister packs
Key Characteristics
✔ Fully divisible without tools
✔ Highest purity (99.99%)
✔ Each unit independently tradable
✔ Excellent portability
✔ High retail liquidity
Applications
Investment & Wealth Management
Retail investment, emergency liquidity, incremental liquidation
Gifting & Inheritance
Divisible wealth transfer, ceremonial gifting
Trade & Portability
Small-unit gold exchange where legally permitted
Advantages of Gold Combi Bars
✔ Maximum divisibility
✔ No cutting or melting required
✔ Each gram retains full investment-grade status
✔ Easy resale of partial holdings
✔ Compact and discreet
Combi Bars vs Other Gold Forms
| Feature | Combi Bars | Minted Bars | Cast Bars |
|---|---|---|---|
| Purity | 99.99% | 99.9 – 99.99% | 99.5 – 99.99% |
| Divisibility | Excellent | None | None |
| Premium | High | Medium | Low |
| Typical Buyer | Retail / HNI | Retail | Institutional |
| Aesthetics | High | High | Low |
Why Choose Gold Combi Bars?
Gold combi bars offer unmatched flexibility in physical gold ownership. They are ideal when purity, portability, and divisibility matter more than minimum premium, making them perfectly suited for dynamic wealth management, gifting, and contingency planning.