2B BA HL 8K Surface Stainless Steel Strips Alloy 301 304 316L 2205 2507 Precision Slit Cutting Without Burr
Product Introduction
Our premium stainless steel strips offer unparalleled surface finish versatility and precision engineering, featuring Alloy 301, 304, 316L, 2205, and 2507 with surface treatments including 2B (mill finish), BA (bright annealed), HL (hairline), and 8K (mirror polish). Engineered for applications demanding both aesthetic excellence and mechanical durability, these strips undergo advanced precision slit cutting to ensure burr-free edges and tight dimensional tolerances. The diverse alloy range caters to varied industry needs: 301/304 for general corrosion resistance, 316L for harsh environments, and 2205/2507 duplex stainless steels for high-strength, chloride-resistant applications. Ideal for architectural cladding, kitchen appliances, medical equipment, marine components, and chemical processing systems, our strips combine superior surface quality with reliable performance.
Technical Parameters
| Parameter | Details |
| Alloy Grades | 301 (UNS S30100), 304 (S30400), 316L (S31603), 2205 (S32205), 2507 (S32750) |
| Surface Finishes | 2B (Ra ≤1.6μm), BA (Ra ≤0.8μm), HL (directional brush), 8K (Ra ≤0.2μm) |
| Thickness | 0.1mm - 3.0mm (Tolerance: ±0.01mm for ≤1mm; ±0.02mm for >1mm) |
| Width | 5mm - 1219mm (Slit tolerance: ±0.1mm for ≤200mm; ±0.2mm for >200mm) |
| Hardness (HV) | 140-550 (Grade/temper dependent: Soft to Full Hard) |
| Tensile Strength | 520-1700 MPa (Varies by alloy and cold work) |
| Corrosion Resistance | Passes ASTM A923 (duplex steels) and salt spray testing (500+ hours for 316L) |
| Edge Finish | Burr-free, radius ≤0.05mm with Rz ≤12.5μm |
Specifications
Dimensions & Coil Details
- Coil Weight: 50kg - 2000kg (Customizable for narrow/wide strips)
- Inner Diameter: 305mm (narrow strips, ≤200mm width) / 508mm (standard)
- Outer Diameter: Up to 1500mm (Thickness-dependent)
- Straight Strips: 100mm - 6000mm (Precision-cut with laser or tungsten carbide tools)
Alloy & Surface Applications
| Alloy | Surface Finish | Key Properties | 典型应用 (Typical Applications) |
| 304 | 2B / BA | Versatile corrosion resistance, easy welding | Kitchen sinks, heat exchangers |
| 301 | HL / 8K | High formability, spring-like resilience | Decorative trims, elevator panels |
| 316L | 2B / HL | Chloride corrosion resistance | Marine fixtures, pharmaceutical equipment |
| 2205 | 2B / BA | Duplex structure: High strength + pitting resistance | Chemical reactors, offshore platforms |
| 2507 | 8K / Custom | Super duplex: Extreme corrosion & pressure resistance | Desalination plants, oil & gas pipelines |
Product Features
- 2B: Smooth, reflective finish for general applications.
- BA: Bright, low-roughness surface ideal for plating or coating.
- HL: Uniform directional brush finish for architectural aesthetics.
- 8K: Mirror-like polish with ≥90% light reflectivity for luxury applications.
- Burr-Free Cutting: Advanced slitting lines with vision inspection systems ensure defect-free edges.
- Tight Tolerances: Thickness/width control within ±0.5% of nominal values.
- Duplex Steels (2205/2507): Offer 2x yield strength of austenitic grades with superior resistance to stress corrosion.
- 316L: Low carbon content minimizes carbide precipitation in welded joints.
- Tailored surface treatments (e.g., anti-fingerprint coatings, PVD coloring).
- Non-standard widths down to 5mm for micro-components.
- 100% surface inspection via automated optical scanning.
- Chemical composition verified by spectrometer (PMI testing available).
Standards Compliance
- ASTM A240 (304/316L), ASTM A1016 (duplex steels)
- EN 10088-2 (301), EN 10216-5 (2205/2507)
- JIS G4305 (304), GB/T 20878 (alloy specifications)
- Mill Test Certificates (MTC) with heat traceability.
- Optional ISO 9001, ISO 14001, and NACE MR0175 compliance for duplex grades.
Packaging Solutions
- Anti-Corrosion Packaging:
- Inner layer: VCI (volatile corrosion inhibitor) film + acid-free paper.
- For 8K/HL surfaces: Protective PE film to prevent scratches.
- Coils ≤500kg: Reinforced plywood boxes with corner foam padding.
- Coils >500kg: Wooden pallets with steel strapping and moisture-absorbing desiccants.
- Clear print of alloy, surface finish, thickness, width, and batch number.
- Custom labels with customer logos or handling instructions (e.g., "Handle with Gloves" for 8K surfaces).
After-Sales Service
- 12-month warranty against surface defects, dimensional errors, or corrosion failures under normal use.
- Free replacement for non-conforming products confirmed by independent testing.
- Surface treatment selection guidance (e.g., choosing HL vs. 8K for fingerprint resistance).
- Processing advice: Welding parameters for duplex steels, polishing techniques for 8K surfaces.
- Global shipping with tracked logistics; express delivery options available.
- Dedicated customer service team responding within 24 hours to inquiries.
- Free sample kits (200mm x 200mm swatch panels) for surface finish evaluation.
- Tailored packaging for fragile 8K strips (e.g., vacuum-sealed crates for air freight).
For architectural projects, OEM manufacturing, or industrial applications, contact our team to discuss your surface finish, alloy, and precision cutting requirements. We deliver stainless steel strips that balance aesthetic appeal with engineering excellence, ensuring your products stand out in both performance and appearance.
