The most popular stainless steel finish 2

Sandblasted stainless steel
1. Core features
① Surface morphology
Uniform rough surface: The surface Sa value is 2.5-5.0μm, presenting a fine granular texture
Completely non-reflective: Light absorption rate > 95%, achieving a true matte effect
Three-dimensional anchor pattern structure: Forms microscopic concave and convex, enhancing the adhesion of the coating (up to 5B grade)
② Performance advantages
Super strong defect concealment ability (can cover 0.3mm deep scratches)
Outstanding anti-slip performance (static friction coefficient 0.6-0.8)
Excellent coating substrate (adhesion increased by 300% compared to polished surface)

2. Precision processing system
① Abrasive selection system

Abrasive type

Particle size range

Applicable scenarios

Glass beads

50-150μm

Medical equipment, food equipment

Aluminum oxide

80-220μm

Building curtain walls, chemical equipment

Silicon carbide

60-180μm

Ship parts, nuclear power facilities

② Sandblasting parameter control
Pressure range: 0.5-0.8MPa
Spray Angle: 45-75°
Moving speed: 0.5-1.2m/min
③ Post-treatment process
Pickling and passivation (nitric acid concentration 20%-30%)
Sealing treatment (nano-siloxane penetration

3. Professional application fields
① Heavy industrial equipment
Anti-slip deck for offshore oil platforms (conforming to IMO MSC.1/Circ.1329 standards)
The inner wall of the chemical reactor (enhancing the adhesion of the anti-corrosion coating)
Nuclear power equipment shielding housing (neutron absorption coating substrate)
② Building curtain wall system
Anti-glare facades of super high-rise buildings (such as the Burj Al Arab in Dubai)
Anti-corrosion lining plates for metro tunnels (combined with fluorocarbon spraying)
Art installation base materials (such as Anish Kapoor sculptures)
③ Special equipment
Spacecraft fuel tank (surface tension control)
Anti-reflective treatment for military armor
Large particle accelerator vacuum chamber

4. Key technical indicators

Test items

Standard requirements

Test methods

Surface roughness

Sa3.2 grade

ISO 8503-1

Coating adhesion

≥5MPa

ASTM D4541

Salt spray test

No red rust after 3000h

ASTM B117

Abrasion resistance

≤0.1g/1000 times

ASTM D4060

5. Full life cycle maintenance
① Installation stage
Magnetic protective film is adopted to prevent scratches during transportation
A 50mm non-sandblasting area should be reserved in the welding area
② Usage and Maintenance
High-pressure water mist cleaning (pressure ≤150bar) every quarter
Hydrophobic coating maintenance every two years (contact Angle > 110°)
The repair requires re-spraying with the original factory abrasive parameters
③ Scrap and recycling
The surface can be 100% re-sandblasted and reused
The recovery rate of waste material smelting is over 98%

6. Engineering Selection Guide
Coastal environment: 316L+Al₂O₃ sandblasting must be selected
Food contact: Limited glass bead sandblasting (FDA certified)
Artistic creation: It is recommended to mix particle sizes to create a sense of layering
Cost composition analysis
Basic sandblasting processing: $150-280 per square meter
Special abrasives additional: +30-50%

Handling of oversized items: +20% hoisting fee

Embossed stainless steel
1. Core technical features
① Three-dimensional structure
Raised height: 0.3-3.0mm (common anti-slip standard: 1.2mm)
Pattern accuracy: ±0.05mm tolerance (laser positioning and embossing)
Base material thickness: 0.8-6.0mm (2.5mm is commonly used for curtain walls)
② Performance advantages
Anti-slip grade: R10-R13 (DIN 51130 standard)
Anti-deformation: Strength increases by 30% compared to flat plates
Light and shadow effect: Three-dimensional refraction, dynamic visual effect

2. Precision manufacturing process
① Mold manufacturing technology
Process type, precision, service life, applicable pattern
Engraving molds ±0.1mm for 50,000 complex patterns
Laser mold ±0.03mm, 200,000 times fine texture
Etching mold ±0.05mm, 30,000 times gradient effect
② Embossing process flow
Substrate pretreatment (degreasing and cleaning)
1000-ton hydraulic press cold pressing forming (pressure 80-120 mpa)
Stress relief (low-temperature annealing at 300℃
Surface finishing (CNC abrasive belt trimming)
③ Composite processing option
PVD coating (titanium gold/rose gold/black titanium)
Anti-fingerprint coating (AF nano-coating
Anti-fouling treatment (photocatalytic titanium dioxide

3. High-end application scenarios
① Building curtain wall system
Super high-rise typhoon-resistant panels (Dubai Creek Tower facade)
Anti-slip wall panels for subway stations (combined with LED backlight system)
Acoustically optimized ceiling (specific pattern sound absorption coefficient 0.7)
② Transportation industry
Anti-skid plates for ship decks (compliant with IMO MSC.1/Circ.1329)
High-speed rail carriage interior panels (30% weight reduction vs. traditional materials
Aircraft jet bridge floor (resistant to freezing and cracking at -40℃
③ Art Installation
Parametric building skin (Dynamic light and shadow changes)
Museum interactive wall (Tactile Tour guide system)
Luxury store display stands (customized brand patterns)

4. Key performance parameters

Index

Test standard

Typical value

Tensile strength

ASTM E8

650-850MPa

Salt spray resistance

ASTM B117

2000h rust-free

Thermal deformation

EN 1363-1

≤2mm@300℃

Anti-slip value

DIN 51130

R11 grade

5. Engineering installation specifications
① Node processing
Adopt floating connection (with a 3mm thermal expansion gap reserved)
The joints need to be sealed with silicone structural adhesive (modulus ≥0.7MPa).
② Maintenance Plan
Quarterly maintenance: Low-pressure steam cleaning (≤80℃)
Annual inspection: Torque Test (Fastener anti-loosening)
Damage repair: On-site embossing with a dedicated texturing mold

6. Selection decision matrix
Demand dimension recommendation plan
Extreme anti-slip 3mm rhombic protrusions + silicon carbide coating
Light and Shadow Art 0.8mm fine wave pattern +PVD color coating
Acoustically optimized 1.5mm conical array perforated plate

Titanium gold-coated stainless steel
1. Core technical principles
①PVD coating structure
Base layer: 316L stainless steel electrolytically polished (Ra≤0.1μm)
Transition layer: Ti/TiN (0.2-0.5μm, enhancing adhesion)
Color development layer: TiAlN (Gold) /ZrN (Rose Gold) /TiCN (Black titanium)
Protective layer: SiO₂ nano-coating (anti-fingerprint and anti-scratch)
② Color engineering parameters

Coating type

Color coordinates (L*a*b*)

Thickness

Hardness (HV)

Champagne gold

85/5/25

1.2μm

2200

Rose gold

78/15/10

1.5μm

1800

Gun black titanium

30/0/-5

2.0μm

2500

Fantasy purple

Variable interference color

0.8μm

1500

2. Ultra-precision processing flow
① Pretreatment stage
Plasma cleaning (Ar ion bombardment, removal of 3nm surface oxide)
Magnetron sputtering pre-plating (Cr transition layer, enhancing adhesion)
② Core PVD process
Arc ion plating (target material purity 99.99%, current 150-200A)
Gas ratio (precise control of N₂/Ar/C₂H₂, error ±0.5%)
Temperature control (200-450℃ constant temperature, temperature difference ≤±3℃)
③ Post-processing technology
Atomic layer deposition (ALD) protective film (50nm Al₂O₃)
Vacuum impregnated anti-fingerprint oil (contact Angle > 115°)

3. Top-level application scenarios
① Super high-rise buildings
The elevator car of Burj Khalifa in Dubai (2 million times friction test)
Sunshade system of Shanghai Tower (UV resistance 10,000 hours)
② Luxury goods sector
Swiss watch case (passed 10-bar water resistance test)
Jewelry display cabinet (Mohs hardness ≥8)
③ Cutting-edge technology
Optical components of spacecraft (solar reflectivity < 0.2)
Medical surgical robot housing (antibacterial rate > 99%)

4. Extreme performance testing

Test items

Standard method

Typical results

Abrasion resistance

Taber CS-10

Weight loss after 1000 revolutions < 0.5 mg

Corrosion resistance

ASTM B368

2000h CASS test passed

Color difference stability

ISO 105-B02

ΔE < 1.5 (10 years)

Adhesion

ISO 2409

Grade 0 (cross-cut method)

5. Engineering maintenance system
① Cleaning Standards
Specialized pH6-7 cleaner (Chlorine-containing products are prohibited)
Unidirectional wiping with microfiber cloth (pressure < 3N/cm²)
② Damage repair
Micro-area laser remelting (spot diameter 50μm)
Local PVD re-plating (requires a dedicated vacuum chamber)
③ Life expectancy prediction
Outdoor for 25 years (C5 grade environment)
Permanent color retention indoors

6. Selection Decision Guide

Demand scenario

Recommended solution

Cost coefficient

Seaside curtain wall

316L+TiAlN+ALD

2.5X

Medical equipment

Antibacterial Cu doped coating

3.0X

Consumer electronics

Color interference plating + AF coating

4.0X