What Is 18-8 In An 18-8 Stainless Washer?18-8 in stainless washers represents the percentage content of chromium and nickel in a 300 series of stainless steel. In other words, the 18-8 stainless washer contains 18% chromium and 8% nickel. Combining these two elements creates a more robust and durable metal.

But why would 18-8 stainless steel be so crucial for washers? Here, we’ll discuss the benefits of using 18-8 stainless steel washers and their application.

Benefits of 18-8 Stainless Steel Washers

18-8 stainless steel is a prized metal for washer manufacturing. Firstly:

Resistance To Corrosion

The 18-18 chromium and nickel ratio makes a highly resistant stainless steel. The two elements create a certain level of passive layer that prevents rust and oxidation.

As a result, the 18-8 stainless washer is strong enough to resist corrosion even in the toughest conditions. That means it can protect the integrity of your parts against water, salt, air, and other forms of harsh elements.

High Tensile Strength And Durability

An 18-8 in stainless washer is extremely strong and durable. It does not crush or deform when tightening.

Ordinarily, chromium and nickel are strong and more durable than other metals. In fact, chromium is the hardest metal known. When combined in the 18-8 ratio, the washer is much more durable than regular steel.

Heat Resistance

18-8 stainless steel washers are heat resistant. The chromium and nickel combination creates a washer that can withstand temperatures up to 1598°F.

With that high heat resistance, it’s less likely to deform when exposed to high temperatures. That makes it suitable for many applications, including catering equipment.


An 18-8 stainless washer is budget-friendly compared to washers made of other steel alloys. It also reduces the cost of maintenance and repairs that would otherwise be necessary if you used regular steel.

Additionally, the 18-8 stainless washer being corrosion resistant means you won’t have to replace it often.

Application of 18-8 Stainless Steel Washers

18-8 stainless washers are excellent in many industries. For examples:

  • Chemical
  • Pharmaceutical equipment
  • Automotive
  • Wastewater treatment
  • Restaurant and catering equipment
  • Outdoor furniture
  • Outdoor enclosures

18-8 stainless washers From Minneapolis Washer

At Minneapolis Washer, we offer 18-8 stainless washers in various sizes and thicknesses. We use the purest materials to guarantee quality washers that provide exceptional support and performance. We proudly serve US with our industry-leading quality and service. Contact us today via email, phone (612-588-0501), or our online form to request a quote.

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