SS A2 A4 with Ear Double Wire

Stainless Steel A2 A4 with Ear Double Wire

The A4 material has 16% chromium, 2% molybdenum and 10.5% nickel in the composition.  The A2 material has 10.5% chromium in the composition. The A4 material has much corrosion resistance than the A2 material. The A4 grade material is used in marine grade applications mostly due to the higher corrosion resistance.