Hongtu Metal Multi-Finish Stainless Steel Sheets: BA, Hairline, 2B, 8K Across Premium Grades
Hongtu Metal offers an extensive range of stainless steel sheets featuring multiple surface finishes and premium grade options including 430, 321, 410, and 420. From brilliant mirror-polished 8K surfaces for architectural masterpieces to precision 2B finishes for industrial equipment, our comprehensive product line delivers the perfect combination of aesthetics, performance, and durability for every application.
Complete Surface Finish Selection
| Finish | Description | Primary Applications |
|---|---|---|
| BA (Bright Annealed) | Highly reflective mirror-like surface produced through controlled-atmosphere heat treatment. Delivers brilliant luster without mechanical polishing. | Architectural cladding, elevator panels, home appliances, decorative trim |
| Hairline (HL) | Continuous fine directional grain pattern achieved through precision abrasive belt polishing. Classic premium decorative appearance. | Elevator interiors, escalator panels, kitchen equipment, wall panels |
| 2B (Cold Rolled) | Smooth, moderately reflective finish from cold rolling and skin passing. Excellent surface uniformity for industrial use. | Chemical equipment, food processing, general fabrication, medical devices |
| 8K (Super Mirror) | Perfectly reflective, distortion-free surface through intensive multi-stage mechanical polishing. The ultimate decorative finish. | Premium architectural installations, luxury hotel interiors, high-end retail fixtures |
| No.1 (Hot Rolled) | Dull, non-reflective finish from hot rolling and annealing. Maximum corrosion resistance for structural use. | Industrial structures, pressure vessels, heavy equipment, shipbuilding |
Premium Grade Options
Grade 430 — Ferritic Stainless Steel: A 16-18% chromium ferritic grade offering excellent formability, good corrosion resistance, and magnetic properties. The most cost-effective choice for decorative and indoor architectural applications including elevator panels, kitchen equipment, and appliance trims. BA and 8K finishes on 430 deliver stunning visual appeal at an economical price point.
Grade 321 — Titanium Stabilized Austenitic: A titanium-stabilized 18-8 austenitic grade engineered for superior high-temperature performance up to 900°C. The titanium addition prevents intergranular corrosion after welding, making it ideal for heat exchangers, furnace components, and aircraft exhaust systems. Available in 2B, BA, and No.1 finishes for both industrial functionality and aesthetic applications.
Grade 410 — Martensitic Stainless Steel: A 12% chromium martensitic grade that can be hardened through heat treatment. Offers high strength and hardness with moderate corrosion resistance. Widely used for cutlery, turbine blades, valve components, and mechanical parts requiring wear resistance. Hot rolled and 2B finishes provide an excellent base for subsequent machining and heat treatment.
Grade 420 — High-Carbon Martensitic: A higher carbon variant of 410 providing maximum hardness (up to HRC 50+) after heat treatment. The preferred choice for surgical instruments, scissors, bearings, and cutting tools where edge retention and wear resistance are critical. Supplied in annealed condition ready for machining and subsequent hardening.
Mechanical Properties Comparison
| Property | 430 | 321 | 410 | 420 |
|---|---|---|---|---|
| Tensile Strength | ≥ 450 MPa | ≥ 515 MPa | ≥ 480 MPa | ≥ 690 MPa |
| Yield Strength | ≥ 205 MPa | ≥ 205 MPa | ≥ 275 MPa | ≥ 415 MPa |
| Elongation | ≥ 22% | ≥ 40% | ≥ 16% | ≥ 15% |
| Hardness (Annealed) | ≤ 88 HRB | ≤ 95 HRB | ≤ 95 HRB | ≤ 95 HRB |
| Max Hardness (HT) | N/A (ferritic) | N/A (austenitic) | HRC 35-45 | HRC 48-56 |
| Corrosion Resistance | Good | Excellent | Moderate | Moderate |
| Magnetic | Yes | No | Yes | Yes |
Customizable Dimensions and Processing
Hongtu Metal provides fully customizable sizing across all grades and finishes to match your exact specifications. Our advanced processing equipment ensures consistent quality and precision on every order:
- Thickness Range: 0.3mm to 100mm, spanning decorative thin sheet to heavy structural plate requirements
- Width Options: Standard widths from 1000mm to 2000mm, with custom slitting available
- Length Customization: Precision cut-to-length from 1000mm to 12000mm
- Edge Preparation: Mill edge, slit edge, or precision sheared edge per customer specifications
- Protective Film: Laser-grade PE protective film applied on finished surfaces to prevent handling and fabrication damage
About Hongtu Metal
Hongtu Metal was founded in 2006 with a registered capital of 27 million US dollars. As a comprehensive enterprise integrating steel production, processing, and international sales, the company maintains long-term cooperative relationships with China's premier steel manufacturers including Shandong Iron and Steel Group, Rizhao Iron and Steel, Shanxi TISCO, Baosteel, and Xiwang Special Steel. Our professional international trade team provides seamless one-stop export solutions covering every aspect from material sourcing to global logistics.
Contact Hongtu Metal today for a competitive quotation on stainless steel sheets in your required grade, finish, and dimensions. Free samples and material certification provided with every inquiry.