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Brass Protobox

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Brass Protobox

Whether you are looking for DIY metal project materials or brass for metal working training, the Brass Protobox is an excellent and affordable package of quality materials to get you started. Each protobox contains an assortment of brass alloys and material shapes, from round rods to flat bars and tubes, with each piece typically measuring smaller than 6" x 12".

 

Protoboxes are available in 5 lbs., 10 lbs., and 20 lbs. package options, in aluminum, copper, carbon steel, and stainless steel.

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New Sizes for 303 Sheet/Plate

Onlinemetals is constantly expanding our selection of size, and now feature 303 in sizes 0.4375", 0.5625", 1.125" & 1.75".


Brass Protobox 5lbs Part # 21883

Brass Protobox 5lbs -
Part #: 21883

Pack of 1

Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$17.17
$17.17 ea.

Dimensions

  • Current: Limit Two Per Customer
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Brass Protobox 10lbs Part # 21884

Brass Protobox 10lbs -
Part #: 21884

Pack of 1

Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$34.32
$34.32 ea.

Dimensions

  • Current: Limit Two Per Customer
Click for more details
brass-protobox-1superZoom-mob{product.code}

Key Features

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brass-protobox-1superZoom-desk21884

Brass Protobox 20lbs Part # 21885

Brass Protobox 20lbs -
Part #: 21885

Pack of 1

Best shipping value:
Single Heat Lot Required
Why are heat lots important?
Heat lots ensure consistent metal properties, full traceability, and quality control, which are critical for precision and reliability in your projects.

By selecting "Single Heat Lot Required" option, we ensure all cut pieces are sourced from a single heat lot for consistency in material characteristics.

QTY

Update
$62.91
$62.91 ea.

Dimensions

  • Current: Limit Two Per Customer
Click for more details
brass-protobox-1superZoom-mob{product.code}

Key Features

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