18 AWG Niobium Jump Rings - 1 Ounce

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Sku: NB18




18g Niobium (1.0mm Wire Diameter)
Inside Diameter Aspect Ratio  Approximate
Rings Per Ounce 
3mm     322
3.5mm 9/64"   280
3.75mm     266
4mm 5/32"   252
4.25mm     247
4.5mm     242
4.75mm 3/16"   230
5mm     213
5.5mm 7/32"   184
6mm 15/64"   173
6.25mm     165
6.5mm     157
7mm     140
8mm 5/16"   132
10mm     116

​ ​If you are used to SWG (Standard Wire Gauge) and need help choosing an
AWG (American Wire Gauge) ring size, please visit our FAQ

Niobium Jump Rings - Color
Niobium is a reactive metal. It receives its color due to anodizing with electricity. Batches of Niobium can be slightly different colors, just like dye lots, so be sure to purchase enough rings at one time to complete your project. 

Since both electricity and light angle effect the color of Niobium, different sizes may not match exactly. Also, different gauges will look slightly different as the thickness of the different gauges reflect the light at different angles.

There can be a variation of color occurring in varying amounts from ring to ring and from batch to batch with Niobium. This color variation is a feature property that adds to the beauty of Niobium.

We anodize the rings after they are cut, so the color completely covers the ring, even the cut end.

Niobium Jump Rings - Cleaning 
Oils from the skin can make your Niobium seem dull.  To clean Niobium, use a window cleaner (such as Windex) to polish.  Rinse and dry your piece completely to bring back the shine. 

Niobium Jump Rings - Specifications

Our jump rings follow the American Wire Gauge (AWG), also known as Brown and Sharpe (B&S). All sizes listed are inside diameter (I.D.), measured in millimeters which corresponds to the size of the mandrel onto which the wire is wound. Use these I.D.'s as a guide not an absolute. The wire used to make our jump rings is of extremely high quality and made using an IOS-Certified production process. However, like all wire, there may be slight tolerances in size. Wire diameter may vary up to 0.03mm (0.0012”) larger or smaller than the listed size.

Occasionally you might get a misshapen ring or an end cut half ring. To account for this, we put extra rings in every bag.

Niobium is not available for returns or exchanges

 **Important Notice: Orders with more than 2 packs of an item may be bulk packaged at WGM's discretion. However, colors and sizes will not be mixed in a bag.

16 Reviews Write a review

  • Rachel

    Nice color, easy to work with.

    Nov 18th 2016

    I've used the unanodized rings and they have a really nice appearance - darker than silver but with a nice shine. They are easy to open and close but don't break or warp.

  • Happy Customer

    Beautiful Color

    Aug 12th 2016

    The Sapphire Niobium is absolutely beautiful! Color is consistent and quality of the cut is perfect.

  • Kate

    Beautiful, hypoallergenic quality

    May 12th 2016

    The beautiful colors make up for the limited selection of any metal because of allergies. I asked customer service to advise me in selecting a cool (purple leaning instead of warm) blue and I ended up with Dusty Blue, which looks gorgeous next to silver and has a nice depth. Definitely hypoallergenic and I'll be using much more of this.

  • Jacki Flade

    Sapphire Nobium Jump Rings

    Apr 6th 2016

    Color of the jump rings is exactly what I was looking for. Rings appear to be consistent in size and shape. I haven't had a chance to use them yet. Arrived quickly, would order again.

  • Laurel

    Niobium jump rings

    Apr 1st 2016

    As always.....THE BEST place to buy jump rings. Wish they came in multi colored ounces!

  • Laurel

    Niobium jump rings

    Apr 1st 2016

    As always.....THE BEST place to buy jump rings. Wish they came in multi colored ounces!

  • Unknown


    Feb 16th 2016

    Love the colour choices.