CARBULEUM | Polished Black Tungsten Steampunk Carbon Fiber Beveled Wedding Ring — 8mm
The CARBULEUM is a handcrafted tungsten carbide men's wedding band, 8mm wide, with a polished black tungsten beveled body carrying a pressure-forged black carbon fiber inlay rendered in a steampunk-style geometric weave running the full circumference across the center. Built comfort-fit, inside-laser-engravable, and backed by our lifetime warranty - engineered carbon weave on polished black tungsten.
The Metal
Tungsten carbide is the hardest wedding-band metal made - roughly 4× harder than titanium and 10× harder than 18k gold. That's not marketing language; it's a measurable Mohs hardness of 8.5-9. In practical terms: this band will not scratch from keys, tools, gym equipment, or daily contact with desks, steering wheels, or phone cases. It will look the same in five years as it looks the day you open the box.
The black tone on the CARBULEUM is a PVD (physical vapor deposition) finish bonded to the tungsten core at the molecular level - not paint or plating. It won't peel, strip, or wear through. The metal is fully hypoallergenic and nickel-free. The carbon fiber is real pressure-forged composite - the same material used in Formula 1 chassis and aerospace components - sealed flush into the beveled body's channel.
Steampunk Carbon Fiber on Polished Black
Carbon fiber is the material of high-performance engineering - Formula 1 chassis, aerospace components, MotoGP fairings. The CARBULEUM uses pressure-forged carbon fiber composite rendered in a steampunk-style geometric pattern across a polished black tungsten beveled body, the marbled woven pattern framed by polished black beveled edges.
From a distance the ring reads as a sleek dark band with a textured center stripe. Up close, the steampunk weave of the carbon fiber comes into focus - geometric, marbled, engineered. The polished black tungsten frame keeps the band architectural while the carbon fiber adds engineered character.
Who It's For
The CARBULEUM is for the man drawn to motorsport, aerospace, and steampunk-meets-engineering aesthetic - racing, riding, anything technical with character. If you want a ring that signals engineering with style, this is it.
Key Features
- Tungsten carbide construction - 4× harder than titanium, 10× harder than 18k gold, scratch-resistant for daily wear
- Hypoallergenic - nickel-free, safe for sensitive skin
- Pressure-forged steampunk-style black carbon fiber inlay across polished black tungsten beveled body - engineered carbon weave on polished black tungsten
- 8mm width with smooth beveled profile
- Comfort-fit interior - rounded inside for all-day wear
- Free inside laser engraving - up to 30 characters, any font
- Lifetime warranty + replacement sizing program - defect coverage and a replacement ring if your finger size changes (see warranty page)
- Ring sizes 7 - 15 (including half sizes)
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The CARBULEUM is a handcrafted tungsten carbide men's wedding band, 8mm wide, with a polished black tungsten beveled body carrying a pressure-forged black carbon fiber inlay rendered in a steampunk-style geometric weave running the full circumference across the center. Built comfort-fit, inside-laser-engravable, and backed by our lifetime warranty - engineered carbon weave on polished black tungsten.
The Metal
Tungsten carbide is the hardest wedding-band metal made - roughly 4× harder than titanium and 10× harder than 18k gold. That's not marketing language; it's a measurable Mohs hardness of 8.5-9. In practical terms: this band will not scratch from keys, tools, gym equipment, or daily contact with desks, steering wheels, or phone cases. It will look the same in five years as it looks the day you open the box.
The black tone on the CARBULEUM is a PVD (physical vapor deposition) finish bonded to the tungsten core at the molecular level - not paint or plating. It won't peel, strip, or wear through. The metal is fully hypoallergenic and nickel-free. The carbon fiber is real pressure-forged composite - the same material used in Formula 1 chassis and aerospace components - sealed flush into the beveled body's channel.
Steampunk Carbon Fiber on Polished Black
Carbon fiber is the material of high-performance engineering - Formula 1 chassis, aerospace components, MotoGP fairings. The CARBULEUM uses pressure-forged carbon fiber composite rendered in a steampunk-style geometric pattern across a polished black tungsten beveled body, the marbled woven pattern framed by polished black beveled edges.
From a distance the ring reads as a sleek dark band with a textured center stripe. Up close, the steampunk weave of the carbon fiber comes into focus - geometric, marbled, engineered. The polished black tungsten frame keeps the band architectural while the carbon fiber adds engineered character.
Who It's For
The CARBULEUM is for the man drawn to motorsport, aerospace, and steampunk-meets-engineering aesthetic - racing, riding, anything technical with character. If you want a ring that signals engineering with style, this is it.
Key Features
- Tungsten carbide construction - 4× harder than titanium, 10× harder than 18k gold, scratch-resistant for daily wear
- Hypoallergenic - nickel-free, safe for sensitive skin
- Pressure-forged steampunk-style black carbon fiber inlay across polished black tungsten beveled body - engineered carbon weave on polished black tungsten
- 8mm width with smooth beveled profile
- Comfort-fit interior - rounded inside for all-day wear
- Free inside laser engraving - up to 30 characters, any font
- Lifetime warranty + replacement sizing program - defect coverage and a replacement ring if your finger size changes (see warranty page)
- Ring sizes 7 - 15 (including half sizes)
