Selecting the appropriate stainless steel grade is critical for ensuring optimal performance and longevity of your fasteners. This guide compares the most common grades used in fastener manufacturing.
A2 Stainless Steel (304 Grade)
• Composition: 18% chromium, 8% nickel
• Corrosion Resistance: Good in general environments
• Applications: Indoor use, mild outdoor conditions, food processing equipment
A4 Stainless Steel (316 Grade)
• Composition: 16% chromium, 10% nickel, 2% molybdenum
• Corrosion Resistance: Excellent, especially against chlorides and marine environments
• Applications: Marine hardware, chemical processing, coastal installations
Selection Guidelines
- Choose A2 for cost-effective solutions in non-corrosive environments
- Choose A4 when exposed to saltwater, chemicals, or high humidity
- Consider A4 for critical applications requiring maximum reliability