316l Medical/Marine Grade Stainless Steel Round Wire | 0.43mm (29 AWG) 305g Spool


The 0.43mm 316L medical/marine grade stainless steel round wire is a highly durable and versatile product, ideal for a wide range of applications. Made from corrosion-resistant 316L grade stainless steel, it suits environments exposed to chemicals or saline solutions.

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✔ Huge Range Available

✔ Produced In Warrington, UK

✔ Shipped Within 24 Hours

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0.43mm 316L Stainless Steel Wire

The Crazy Wire Company are long established as Europe’s preferred suppliers of top quality 0.43mm SS316L wire. We have enormous stock levels at all times, as we use this wire to weave our marine grade woven mesh products.

The 0.43mm 316L medical/marine grade stainless steel round wire is a versatile and high-quality product catering to various industrial and commercial needs. This steel wire is made from 316L stainless steel, which is known for its superior corrosion resistance and durability. It is ideal for environments that are exposed to chemicals, saline solutions, or corrosive elements. Its diameter of 0.43mm (29 AWG) makes it ideal for intricate applications that require precision, balancing flexibility and strength. It is supplied on a 305g spool, so you can work continuously or on large projects without running out of wire.

Because of its medical-grade quality, it is well-suited to medical devices and surgical tools that require strength as well as non-reactivity. In the marine industry, this wire is ideal for crafting and repairing parts that are subject to saltwater and harsh weather conditions, such as boat fittings and rigging equipment. The material’s high temperature resistance also makes it useful in manufacturing processes, particularly in the automotive and aerospace industries, where materials must withstand extreme temperatures.

Specification of this product:

  • Diameter – 0.43mm (430 Micron – 26 AWG)
  • Spool Size – 305g (Approx. 200 Metres)

We also offer the SS316L grade as 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?

We do not only offer SS316L wire. We also have a huge range of KA1 and nichrome round wire in immediate stock too.

Ribbon wire and flat wire are stocked for immediate dispatch too.


FAQs About This Wire

How Does The SS316L 0.43mm Wire Resist Corrosion?

The corrosion-resistant properties of SS316L 0.43mm wire are due to its unique composition and 316L grade stainless steel properties. Due to its higher chromium content and molybdenum addition, this grade of stainless steel is known for its excellent corrosion resistance. Chromium forms chromium oxide on the surface of steel, which protects it from various corrosive substances. This resistance is enhanced by the presence of molybdenum, especially against chloride ions that are prevalent in marine environments.

A lower carbon content in 316L stainless steel reduces susceptibility to intergranular corrosion, which can occur after welding or exposure to high temperatures. The lower carbon content also ensures the corrosion-resistant coating stays intact.

Thus, SS316L 0.43mm wire is highly resistant to corrosive environments, such as saltwater, chlorides, sulfuric acid, bromides, and organic acids. This makes it ideal for industrial, chemical, and marine applications.

Would The SS316L 0.43mm Wire Perform In Acidic Environments?

Yes, the SS316L 0.43mm wire is designed to perform well in acidic environments. The 316L grade stainless steel, used in manufacturing this wire, is known for its excellent resistance to a wide range of acids. This resistance is primarily due to its composition, which includes a significant amount of chromium, nickel, and molybdenum.

The chromium in the alloy forms a passive layer of chromium oxide on the surface of the steel. This acts as a barrier against corrosive substances, including acids. The molybdenum in 316L stainless steel enhances this resistance, particularly in more challenging environments like those containing sulfuric, hydrochloric, acetic, or phosphoric acids. While it is highly resistant, the level of resistance does depend on the concentration and temperature of the acid, as well as the specific type of acid involved.

It’s important to note, however, that while 316L stainless steel performs well in many acidic environments, it may not be suitable for extremely high concentrations or temperatures of certain acids. In such cases, more specialised materials might be required. For typical applications involving exposure to acidic substances, the SS316L 0.43mm wire should provide reliable performance and longevity.


The Crazy Wire Company is a leading UK based supplier of nichromefecral, 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 ‘Everything That You Need To Know About Wire  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.