
Black Hairline Stainless Steel Sheets
Black hairline stainless steel is designed to deliver both premium aesthetics and practical performance. Black is a neutral tone, yet it carries a strong sense of power while simultaneously evoking luxury and mystery. For this reason, it has long been regarded as a timeless choice, unaffected by shifting color trends.
Black hairline stainless steel significantly reduces the visibility of fingerprints, dust, and fine scratches, helping maintain a refined appearance over time even in high-traffic environments. It also effectively minimizes maintenance and cleaning demands.
In particular, the combination of a deep black tone and a refined hairline texture further enhances the material’s inherent solidity and its bold, weighty presence. In spaces dominated by large glass panels or lightweight finishing materials, black hairline stainless steel serves as a visual focal axis, bringing stability, a sense of trust, and a clearer definition of spatial boundaries.
Black hairline stainless steel leaves a strong impression in any space through its restrained elegance and powerful, substantial presence.
– A Solid Anchor for Modern Spaces


Sapphire’s Proprietary Technology

Stable color regardless of lighting conditions
A deep black appearance that feels intrinsic to the material
Minimal visual change even after short-term contact with cement residue


Color Stainless Steel
Sapphire

The color of back hairline stainless steel is achieved through advanced PVD coating technology in a high-vacuum environment. In this process, Titanium or Chromium is heated and vaporized, then combined with specialized gases, allowing the vaporized material to condense and deposit directly onto the stainless steel surface to form a thin, durable, and uniform coating layer. The detailed color specifications are as follows:
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CIE Lab: L*48 / a*0 / b*2 (±2)
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Pantone: 424 C Approx.
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HEX: #7A7A74 Approx.
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CMYK: 0 / 0 / 5 / 52 Approx.
Pantone, HEX and CMYK values are approximate references converted from measured CIE Lab values. Actual appearance may vary depending on lighting, viewing angle, surface reflection and surrounding environment.
Color
Hairline finish stainless steel has a uniformly brushed texture with fine, parallel lines running longitudinally. This distinctive grain effectively conceals minor scratches and fingerprints, maintaining its sleek appearance over time.
Surface Finish
Production Capacity
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Material Grades: Stainless Steel 304, 201, 430
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Thickness: 0.5mm ~ 2.0mm
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Width: 1000mm, 1219mm, 1250mm
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Length: 1500mm ~ 6000mm


PVD Vacuum Coating
By applying Physical Vapor Deposition (PVD) technology in a vacuum environment, we create a uniform and durable black coating layer.
Equipment
Sapphire applies advanced stainless steel processing technology with high precision.
Our factory system is equipped with modern facilities and machinery designed to meet the strict standards of the B2B manufacturing industry, while also ensuring environmental sustainability and worker safety.
Please contact us to schedule a detailed factory tour.

8K Mirror Polishing
Multi-stage grinding and polishing technology are used to achieve a mirror-like high-gloss finish on the stainless steel surface.

Vibration machine
The stainless steel vibration finishing equipment creates a subtle matte surface texture through non-directional grinding processing.
Project References
Black hairline stainless steel becomes a visual framing element, making the door feel more solid, well-centered, and distinctly architectural.
Although it is a dark color, its subtle light-reflective properties prevent the space from feeling confined; instead, it creates a greater sense of depth and openness.
Black hairline stainless steel makes raised lettering stand out clearly, appearing sharp and highly legible even from a distance.
Contact
SAPPHIRE CO., LTD
Headquarters:
17 - 1745, Steel Land, 21, Oido-ro, Siheung-si, Gyeonggi-do, Republic of Korea
TEL:031-8041-8952
Fax: 031-8041-8953
Factory 1:
47-53, Dongbuk-ro, 1109 Beon-Gil, Sangdong-myeon, Gimhae-si, Gyeonsangnam-do, Republic of Korea
TEL: 055-311-8828
FAX: 055-311-8829
Factory 2:
Lot A3.1 Dong Ha Industrial Park, Tra Tan Commune, Lam Dong Province, Vietnam





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