0.75mm 21 AWG Wire SS316L Marine Grade Stainless Steel


The 21 awg wire, crafted from SS316L marine-grade stainless steel, combines durability, corrosion resistance, and optimal electrical conductivity in its slender 0.75mm diameter. Esteemed for its versatile applications, this wire is an essential component in electronic circuits, jewelry making, marine equipment, and industrial structures, ensuring a steady, reliable performance across varying conditions. Suitable for environments requiring resistance to both chemical and saline corrosives, it ensures longevity and maintains its integrity in challenging settings, from chemical plants to oceanic applications, demonstrating a perfect blend of malleability and steadfastness in myriad applications.

Please Feel Free To Contact Our Team If You Have Any Questions At All. We Are Always Keen To Help In Any Way We Can.

✔ Huge Range Available

✔ Produced In Warrington, UK

✔ Shipped Within 24 Hours

✔ 30 Day Returns Accepted

Add to Wishlist


21 AWG Wire

The Crazy Wire Company are long established as Europe’s preferred suppliers of top quality stainless steel 21 AWG wire. We have enormous stock levels at all times, as we use this wire to weave our marine grade woven mesh products.

The 21 AWG wire is made of SS316L, a marine-grade stainless steel that is corrosion-resistant, especially in saline environments. Due to its durability and stability under varied conditions, this wire finds applications in diverse fields as well. Electronics often select this material for its electrical conductivity, incorporating it into circuits, soldering projects, and electronic devices, ensuring reliable and steady electricity flow. Furthermore, 21 awg wire plays a pivotal role in the creation of jewelry due to its robustness and resistance to tarnish.

With its inherent saltwater corrosion resistance, it provides dependable performance for the manufacture and repair of maritime apparatus, such as safety barriers, riggings, and other vital items. It provides support and binds structures, ensuring they remain secure and interconnected in construction and industrial settings. When exploring sculptures or model-making, the malleability and structural stability of wire makes it easy to form intricate designs without succumbing to deformation. The SS316L variant of the wire ensures longevity and consistency of performance in applications requiring chemical resistance, such as chemical processing plants. A sleek 0.75mm diameter 21 awg wire with a blend of strength, corrosion resistance, and versatility makes it a preferred choice across multiple sectors.

Specification of Wire:

  • Diameter – 0.75mm (21 AWG Wire)
  • ohms/m – 1.61

We also offer this grade as ribbon wire and flat wire too if required.

Why Use The Crazy Wire Company

  1. Quality of products: The Crazy Wire Company always  offer high-quality products that meet industry standards and customer expectations.
  2. Selection: We offer a wide variety of wire products and sizes to meet the diverse needs of our customers. We have more than 600 products available through our site and counting. 
  3. Price: We always offer the best value possible. Our wires are available as part of our major weaving processes, so it is bought at the best possible rate. 
  4. Availability: Our products are kept in house and are ready to ship immediately. 
  5. Customer service: Our experienced staff help our customers feel confident in their purchases and provide assistance when required. 

What Else Is Available?

Not only do we offer 304 grade stainless steel wire, but we also stock huge levels of SS316, SS430 (magnetic) and SS317L.

We also offer stainless steel in ribbon and flat wire options.

The choice is virtually endless!


FAQs About This Wire

How To Clean Stainless Steel 316L 21 AWG Wire Without Damaging It?

Cleaning stainless steel, specifically the 316L 21 AWG wire, without causing damage requires a gentle approach to preserve its integrity and appearance. Given that SS316L is known for its enhanced corrosion resistance, it doesn’t necessitate aggressive cleaning agents or methods.

Start by gently wiping the wire with a soft, lint-free cloth to remove any loose dirt or debris. For more stubborn dirt or light stains, use warm, soapy water (a mild dishwashing soap would be appropriate) and a soft sponge or cloth. Always ensure to follow the grain of the stainless steel (even though this might be difficult with a wire) during cleaning to avoid scratching the surface.

In cases where you encounter more persistent stains or tarnish, a mixture of baking soda and water could be applied. Create a paste with baking soda and a small amount of water, and apply it gently to the stained areas, rubbing it softly along the wire’s length. Again, if a directionality/grain is visible, ensure your motions are aligned with it to mitigate any potential for scratching.

After using any cleaning solution, it’s imperative to rinse the 21 AWG wire thoroughly with clean water and then dry it completely using a clean, dry cloth to prevent any potential for water spotting, which can occur even with stainless steels that are notably corrosion-resistant like 316L.

For ongoing maintenance, avoid allowing salts, chlorides, or aggressive chemicals to sit on the wire for extended periods, as these can compromise the protective oxide layer of the stainless steel over time. Always adhere to a regular cleaning schedule to preserve the aesthetic and structural integrity of your 21 AWG wire.

What Are The Environmental Impacts Of Using SS316L 21 AWG Wire?

When using SS316L 21 AWG wire in various applications, specific environmental considerations must be taken into account. Stainless steel production, like SS316L, typically involves mining, smelting, and refining processes that contribute significantly to greenhouse gas emissions and energy use. The release of heavy metals and other toxic substances during mining activities can further disrupt habitats, pollute water and soil, and destroy habitats. Due to its high corrosion resistance, durability, and longevity, SS316L reduces the frequency of replacement and maintenance, potentially reducing resource usage and waste over time. In addition, stainless steel is 100% recyclable, and new stainless steel is predominantly made from recycled materials, thereby reducing some environmental impacts. Even so, recycling itself consumes energy, though less than making new steel. The life cycle environmental impact of SS316L 21 AWG wire – from materials extraction to production, use, and eventual recycling or disposal – is vital to making informed and sustainable choices. To further reduce its environmental impact, it is also important to explore and prioritize options that incorporate recycled content.

How To Protect SS316L 21 AWG Wire From Physical Damage?

Protecting SS316L 21 AWG wire from physical damage is crucial in maintaining its functionality and extending its lifespan.

Handling and Installation

  • Use Appropriate Tools: Employing tools that are suitable for working with stainless steel wire, like cutters and pliers with smooth jaws, can prevent unnecessary damage during installation or handling.
  • Mindful Coiling and Uncoiling: Ensure that the wire is carefully uncoiled and coiled to avoid kinking and bending. Proper spools or reels can facilitate orderly winding and unwinding.


  • Safe Storage: Store the wire in a dry, clean, and safe environment. Using designated storage units or racks that prevent the wire from being tangled or bent is advisable.
  • Environmental Control: Ensure that the storage area is free from corrosive substances. A controlled environment, where humidity and temperature are monitored, can prevent accidental damage or degradation.

In-Use Protection

  • Use Sleeves or Coatings: Employ protective sleeves or coatings, especially when the wire passes through or is installed in abrasive environments. This additional layer can shield the wire from physical harm.
  • Control Stress: Ensure that the wire is not under consistent high stress or tension that might lead to work hardening and potential failure. Utilize fixtures and supports that distribute stress evenly.
  • Avoid Overloading: Ensure that the wire is not subjected to loads beyond its specified tensile strength to avoid stretching or snapping.

Maintenance and Inspection

  • Routine Checks: Implement a routine inspection schedule to identify any early signs of wear or damage. Check for any fraying, corrosion, or misalignment.
  • Immediate Repairs: Address any identified issue immediately to prevent further degradation. If a section of the wire is damaged, consider replacing it promptly to avoid catastrophic failure.
  • Keep Clean: Ensure that the wire is kept clean from any corrosive substances, particularly in industrial environments where it might be exposed to harsh chemicals or salts.

Protective Design Strategies

  • Use in Tandem with Other Materials: In applications where the wire might encounter physical wear, using it in conjunction with other materials to provide a protective barrier or to absorb impact and stress can be beneficial.
  • Smart Routing: In setups, ensure that the wire is routed in a manner that avoids physical contact with moving parts or abrasive surfaces.



The Crazy Wire Company is a leading UK based supplier of nichrome, FeCrAl, and stainless steel wires. We specialise in rapid delivery to any location around the country. Our factory is located in Warrington, which is the historic home of the UK’s wire industry.

Check out our blog ‘What You Need To Know About: Stainless Steel Wires’   for more information on resistance wire in general. Our goal for our blogs and help guides is to answer as many questions as possible to help to explain the possibilities of mesh to our customers. 

We also offer similar products through our highly popular eBay store, check us out there too.

Contact our team today if you have any questions at all. We are always really keen to help in any way that we can. 

Additional information


10 Metres (33 Feet), 25 Metres (82.5 Feet)


There are no reviews yet.

Be the first to review “0.75mm 21 AWG Wire SS316L Marine Grade Stainless Steel”

Your email address will not be published. Required fields are marked *