Meets High-Standard Corrosion Resistance for Food Processing, Biopharmaceuticals, and Coastal Applications. For bar and rod form in the same corrosion-resistant alloy, explore our 316 stainless steel rod stocked in cold-drawn diameters from Φ5 to 50mm.
| Element | Content (%) | Medical-Grade Role |
|---|---|---|
| C (Carbon) | ≤0.03 | Ultra-low carbon design; post-weld resistance to intergranular corrosion is 50% higher than 316, preventing stress corrosion in surgical instruments. |
| Mo (Molybdenum) | 2.0–3.0 | Enhances resistance to chloride corrosion (e.g., saline); pitting potential is 200mV higher than 304, preventing surface rusting of instruments. |
| Ni (Nickel) | 12.0–15.0 | Optimizes biocompatibility, reducing tissue rejection reactions; nickel ion migration ≤0.05ppm. |
Physical Properties: Density 7.98g/cm³, melting point 1325–1370℃, elongation ≥40%, impact energy ≥27J at -40℃.
Chemical Properties: Corrosion rate ≤0.005mm/year in 10% glucose solution at 37℃; pitting resistance time >5000 hours in 0.9% sodium chloride solution.
Grade: 316L stainless steel (ASTM A240, UNS S31603).
Thickness: 1–10mm (standard stock 2–5mm; 10mm available on request).
Width: 1000–1500mm (cutting precision ±0.5mm).
Length: up to 3000mm.
Surface Finish: Electropolished (Ra≤0.4μm) or mechanically polished (Ra≤0.8μm).
| Finish | Roughness (Ra) | Typical Use |
|---|---|---|
| 2B (standard mill) | ≤1.6 μm | Chemical equipment, structural, general industrial |
| BA (bright annealed) | ≤0.1 μm | Food processing, pharmaceutical, decorative |
| No.4 (brushed) | ≤0.8 μm | Architectural cladding, kitchen equipment |
| Mechanically polished | ≤0.8 μm | Hygienic and cleanroom environments |
| Electropolished | ≤0.4 μm | Surgical, biopharmaceutical, GMP-regulated environments |
Custom finishes and cutting to size are available on request.
Stainless Steel Plate Bending/Stamping Process
Stainless Steel Plates on Storage Rack
Palletized Stainless Steel Plates
Stainless Steel Plate Rolling Line
Precision Thickness Inspection of Stainless Steel Plate
Forklift Loading Stainless Steel Plates for Shipment
Specification: 2.0mm × 1219mm
Advantage: Achieves sterilization rate of 99.99%, resistant to ≥500 disinfection cycles
Case: Mindray laparoscopic component housings used in medical device manufacturing workshops.
Specification: 3.0mm × 1500mm
Advantage: Withstands 500 cycles of autoclave sterilization at 121℃ without corrosion
Case: Weigao medical reagent storage equipment used in medical device manufacturing workshops.
Electropolishing uses a phosphoric acid–sulfuric acid system, with polishing duration of 15–20 minutes, achieving a surface roughness of Ra 0.2–0.4μm.
Each batch is supplied with biocompatibility test reports (ISO 10993-5/-10) and GMP compliance statements.
Walmay will help match the right stainless product form and specification for your application, confirm quantities and packing needs, and provide requested documents based on order requirements.
