Skip to Main Content

Filter By

Material

Shape This is the shape of the material

Alloy

Thickness

Width

Production Method

Specs

Unit of Measure

Seller

Category Name

Carbon Steel Cold Finished 1018 Rectangle Bar

Our 1018 cold-finished carbon steel rectangle bar offers excellent dimensional accuracy and a smooth, bright surface finish. These flat bars are frequently used for manufacturing mounting plates, machinery bases, and general-purpose brackets. The cold-finishing process increases the material's yield and tensile strength compared to hot-rolled alternatives. 1018 steel is highly valued for its exceptional weldability and ease of machining in both manual and CNC operations. Onlinemetals.com provides 1018 cold-finished bars in a wide range of dimensions to support your versatile fabrication needs.

SALE! Select Cut Sizes

1/8" x 3/8" Carbon Steel Rectangle Bar 1018 Cold Finish Part # 4801

1/8" x 3/8" Carbon Steel Rectangle Bar 1018 Cold Finish -
Part #: 4801

QTY

Update
$3.66 for 1
$3.66 ea.
Camera Expand Details
quantity discount
Qty
Price ea.
Savings

Dimensions

  • Thickness: 0.125"
  • Width: 0.375"
View more product details Click for more details
mild-steel-rectangle-bar-1018-cold-finish-1superZoom
Material Meets These Standard(s): ASTM-A108

Key Features

CUSTOM CUT MTR FREEMTRAvailable
View more product details View more product details

1/8" x 3" Carbon Steel Rectangle Bar 1018 Cold Finish Part # 7169

1/8" x 3" Carbon Steel Rectangle Bar 1018 Cold Finish -
Part #: 7169
Camera Expand Details
quantity discount
Qty
Price ea.
Savings

Dimensions

  • Thickness: 0.125"
  • Width: 3"
View more product details Click for more details
mild-steel-rectangle-bar-1018-cold-finish-1superZoom
Material Meets These Standard(s): ASTM-A108

Key Features

CUSTOM CUT MTR FREEMTRAvailable
View more product details View more product details

1/8" x 2 1/2" Carbon Steel Rectangle Bar 1018 Cold Finish Part # 7168

1/8" x 2 1/2" Carbon Steel Rectangle Bar 1018 Cold Finish -
Part #: 7168
Camera Expand Details
quantity discount
Qty
Price ea.
Savings

Dimensions

  • Thickness: 0.125"
  • Width: 2.5"
View more product details Click for more details
mild-steel-key-stock-rectangle-1superZoom
Material Meets These Standard(s): ASTM-A108

Key Features

CUSTOM CUT MTR FREEMTRAvailable
View more product details View more product details

1/8" x 5/16" Carbon Steel Rectangle Bar 1018 Cold Finish Part # 7167

1/8" x 5/16" Carbon Steel Rectangle Bar 1018 Cold Finish -
Part #: 7167
Camera Expand Details
quantity discount
Qty
Price ea.
Savings

Dimensions

  • Thickness: 0.125"
  • Width: 0.3125"
View more product details Click for more details
mild-steel-key-stock-rectangle-1superZoom
Material Meets These Standard(s): ASTM-A108

Key Features

CUSTOM CUT MTR FREEMTRAvailable
View more product details View more product details

1/8" x 5" Carbon Steel Rectangle Bar 1018 Cold Finish Part # 6810

1/8" x 5" Carbon Steel Rectangle Bar 1018 Cold Finish -
Part #: 6810
Camera Expand Details
quantity discount
Qty
Price ea.
Savings

Dimensions

  • Thickness: 0.125"
  • Width: 5"
View more product details Click for more details
mild-steel-rectangle-bar-1018-cold-finish-1superZoom
Material Meets These Standard(s): ASTM-A108

Key Features

CUSTOM CUT MTR FREEMTRAvailable
View more product details View more product details

1/8" x 4" Carbon Steel Rectangle Bar 1018 Cold Finish Part # 6809

1/8" x 4" Carbon Steel Rectangle Bar 1018 Cold Finish -
Part #: 6809
Camera Expand Details
quantity discount
Qty
Price ea.
Savings

Dimensions

  • Thickness: 0.125"
  • Width: 4"
View more product details Click for more details
mild-steel-rectangle-bar-1018-cold-finish-1superZoom
Material Meets These Standard(s): ASTM-A108

Key Features

CUSTOM CUT MTR FREEMTRAvailable
View more product details View more product details

1/8" x 2" Carbon Steel Rectangle Bar 1018 Cold Finish Part # 4808

1/8" x 2" Carbon Steel Rectangle Bar 1018 Cold Finish -
Part #: 4808
Camera Expand Details
quantity discount
Qty
Price ea.
Savings

Dimensions

  • Thickness: 0.125"
  • Width: 2"
View more product details Click for more details
mild-steel-rectangle-bar-1018-cold-finish-1superZoom
Material Meets These Standard(s): ASTM-A108

Key Features

CUSTOM CUT MTR FREEMTRAvailable
View more product details View more product details

1/8" x 1 1/2" Carbon Steel Rectangle Bar 1018 Cold Finish Part # 4807

1/8" x 1 1/2" Carbon Steel Rectangle Bar 1018 Cold Finish -
Part #: 4807
Camera Expand Details
quantity discount
Qty
Price ea.
Savings

Dimensions

  • Thickness: 0.125"
  • Width: 1.5"
View more product details Click for more details
mild-steel-rectangle-bar-1018-cold-finish-1superZoom
Material Meets These Standard(s): ASTM-A108

Key Features

CUSTOM CUT MTR FREEMTRAvailable
View more product details View more product details

1/8" x 1 1/4" Carbon Steel Rectangle Bar 1018 Cold Finish Part # 4806

1/8" x 1 1/4" Carbon Steel Rectangle Bar 1018 Cold Finish -
Part #: 4806
Camera Expand Details
quantity discount
Qty
Price ea.
Savings

Dimensions

  • Thickness: 0.125"
  • Width: 1.25"
View more product details Click for more details
mild-steel-key-stock-rectangle-1superZoom
Material Meets These Standard(s): ASTM-A108

Key Features

CUSTOM CUT MTR FREEMTRAvailable
View more product details View more product details

1/8" x 1" Carbon Steel Rectangle Bar 1018 Cold Finish Part # 4805

1/8" x 1" Carbon Steel Rectangle Bar 1018 Cold Finish -
Part #: 4805
Camera Expand Details
quantity discount
Qty
Price ea.
Savings

Dimensions

  • Thickness: 0.125"
  • Width: 1"
View more product details Click for more details
mild-steel-key-stock-rectangle-1superZoom
Material Meets These Standard(s): ASTM-A108

Key Features

CUSTOM CUT MTR FREEMTRAvailable
View more product details View more product details

1/8" x 3/4" Carbon Steel Rectangle Bar 1018 Cold Finish Part # 4804

1/8" x 3/4" Carbon Steel Rectangle Bar 1018 Cold Finish -
Part #: 4804
Camera Expand Details
quantity discount
Qty
Price ea.
Savings

Dimensions

  • Thickness: 0.125"
  • Width: 0.75"
View more product details Click for more details
mild-steel-rectangle-bar-1018-cold-finish-1superZoom
Material Meets These Standard(s): ASTM-A108

Key Features

CUSTOM CUT MTR FREEMTRAvailable
View more product details View more product details

1/8" x 5/8" Carbon Steel Rectangle Bar 1018 Cold Finish Part # 4803

1/8" x 5/8" Carbon Steel Rectangle Bar 1018 Cold Finish -
Part #: 4803
Camera Expand Details
quantity discount
Qty
Price ea.
Savings

Dimensions

  • Thickness: 0.125"
  • Width: 0.625"
View more product details Click for more details
mild-steel-key-stock-rectangle-1superZoom
Material Meets These Standard(s): ASTM-A108

Key Features

CUSTOM CUT MTR FREEMTRAvailable
View more product details View more product details

1/8" x 1/2" Carbon Steel Rectangle Bar 1018 Cold Finish Part # 4802

1/8" x 1/2" Carbon Steel Rectangle Bar 1018 Cold Finish -
Part #: 4802
Camera Expand Details
quantity discount
Qty
Price ea.
Savings

Dimensions

  • Thickness: 0.125"
  • Width: 0.5"
View more product details Click for more details
mild-steel-rectangle-bar-1018-cold-finish-1superZoom
Material Meets These Standard(s): ASTM-A108

Key Features

CUSTOM CUT MTR FREEMTRAvailable
View more product details View more product details

1/8" x 1/4" Carbon Steel Rectangle Bar 1018 Cold Finish Part # 4800

1/8" x 1/4" Carbon Steel Rectangle Bar 1018 Cold Finish -
Part #: 4800
Camera Expand Details
quantity discount
Qty
Price ea.
Savings

Dimensions

  • Thickness: 0.125"
  • Width: 0.25"
View more product details Click for more details
mild-steel-key-stock-rectangle-1superZoom
Material Meets These Standard(s): ASTM-A108

Key Features

CUSTOM CUT MTR FREEMTRAvailable
View more product details View more product details

1/8" x 6" Carbon Steel Rectangle Bar 1018 Cold Finish Part # 19619

1/8" x 6" Carbon Steel Rectangle Bar 1018 Cold Finish -
Part #: 19619
Camera Expand Details
quantity discount
Qty
Price ea.
Savings

Dimensions

  • Thickness: 0.125"
  • Width: 6"
View more product details Click for more details
mild-steel-rectangle-bar-1018-cold-finish-1superZoom
Material Meets These Standard(s): ASTM-A108

Key Features

CUSTOM CUT MTR FREEMTRAvailable
View more product details View more product details

3/16" x 6" Carbon Steel Rectangle Bar 1018 Cold Finish Part # 7174

3/16" x 6" Carbon Steel Rectangle Bar 1018 Cold Finish -
Part #: 7174
Camera Expand Details
quantity discount
Qty
Price ea.
Savings

Dimensions

  • Thickness: 0.1875"
  • Width: 6"
View more product details Click for more details
mild-steel-rectangle-bar-1018-cold-finish-1superZoom
Material Meets These Standard(s): ASTM-A108

Key Features

CUSTOM CUT MTR FREEMTRAvailable
View more product details View more product details

3/16" x 4" Carbon Steel Rectangle Bar 1018 Cold Finish Part # 7173

3/16" x 4" Carbon Steel Rectangle Bar 1018 Cold Finish -
Part #: 7173
Camera Expand Details
quantity discount
Qty
Price ea.
Savings

Dimensions

  • Thickness: 0.1875"
  • Width: 4"
View more product details Click for more details
mild-steel-rectangle-bar-1018-cold-finish-1superZoom
Material Meets These Standard(s): ASTM-A108

Key Features

CUSTOM CUT MTR FREEMTRAvailable
View more product details View more product details

3/16" x 3" Carbon Steel Rectangle Bar 1018 Cold Finish Part # 7172

3/16" x 3" Carbon Steel Rectangle Bar 1018 Cold Finish -
Part #: 7172
Camera Expand Details
quantity discount
Qty
Price ea.
Savings

Dimensions

  • Thickness: 0.1875"
  • Width: 3"
View more product details Click for more details
mild-steel-rectangle-bar-1018-cold-finish-1superZoom
Material Meets These Standard(s): ASTM-A108

Key Features

CUSTOM CUT MTR FREEMTRAvailable
View more product details View more product details

3/16" x 2 1/2" Carbon Steel Rectangle Bar 1018 Cold Finish Part # 7171

3/16" x 2 1/2" Carbon Steel Rectangle Bar 1018 Cold Finish -
Part #: 7171
Camera Expand Details
quantity discount
Qty
Price ea.
Savings

Dimensions

  • Thickness: 0.1875"
  • Width: 2.5"
View more product details Click for more details
mild-steel-rectangle-bar-1018-cold-finish-1superZoom
Material Meets These Standard(s): ASTM-A108

Key Features

CUSTOM CUT MTR FREEMTRAvailable
View more product details View more product details

3/16" x 1/2" Carbon Steel Rectangle Bar 1018 Cold Finish Part # 7170

3/16" x 1/2" Carbon Steel Rectangle Bar 1018 Cold Finish -
Part #: 7170
Camera Expand Details
quantity discount
Qty
Price ea.
Savings

Dimensions

  • Thickness: 0.1875"
  • Width: 0.5"
View more product details Click for more details
mild-steel-rectangle-bar-1018-cold-finish-1superZoom
Material Meets These Standard(s): ASTM-A108

Key Features

CUSTOM CUT MTR FREEMTRAvailable
View more product details View more product details

3/16" x 2" Carbon Steel Rectangle Bar 1018 Cold Finish Part # 6821

3/16" x 2" Carbon Steel Rectangle Bar 1018 Cold Finish -
Part #: 6821
Camera Expand Details
quantity discount
Qty
Price ea.
Savings

Dimensions

  • Thickness: 0.1875"
  • Width: 2"
View more product details Click for more details
mild-steel-rectangle-bar-1018-cold-finish-1superZoom
Material Meets These Standard(s): ASTM-A108

Key Features

CUSTOM CUT MTR FREEMTRAvailable
View more product details View more product details

3/16" x 1 3/4" Carbon Steel Rectangle Bar 1018 Cold Finish Part # 6818

3/16" x 1 3/4" Carbon Steel Rectangle Bar 1018 Cold Finish -
Part #: 6818
Camera Expand Details
quantity discount
Qty
Price ea.
Savings

Dimensions

  • Thickness: 0.1875"
  • Width: 1.75"
View more product details Click for more details
mild-steel-key-stock-rectangle-1superZoom
Material Meets These Standard(s): ASTM-A108

Key Features

CUSTOM CUT MTR FREEMTRAvailable
View more product details View more product details

3/16" x 1 1/2" Carbon Steel Rectangle Bar 1018 Cold Finish Part # 6817

3/16" x 1 1/2" Carbon Steel Rectangle Bar 1018 Cold Finish -
Part #: 6817
Camera Expand Details
quantity discount
Qty
Price ea.
Savings

Dimensions

  • Thickness: 0.1875"
  • Width: 1.5"
View more product details Click for more details
mild-steel-rectangle-bar-1018-cold-finish-1superZoom
Material Meets These Standard(s): ASTM-A108

Key Features

CUSTOM CUT MTR FREEMTRAvailable
View more product details View more product details

3/16" x 1 1/4" Carbon Steel Rectangle Bar 1018 Cold Finish Part # 6816

3/16" x 1 1/4" Carbon Steel Rectangle Bar 1018 Cold Finish -
Part #: 6816
Camera Expand Details
quantity discount
Qty
Price ea.
Savings

Dimensions

  • Thickness: 0.1875"
  • Width: 1.25"
View more product details Click for more details
mild-steel-rectangle-bar-1018-cold-finish-1superZoom
Material Meets These Standard(s): ASTM-A108

Key Features

CUSTOM CUT MTR FREEMTRAvailable
View more product details View more product details

3/16" x 1" Carbon Steel Rectangle Bar 1018 Cold Finish Part # 6815

3/16" x 1" Carbon Steel Rectangle Bar 1018 Cold Finish -
Part #: 6815
Camera Expand Details
quantity discount
Qty
Price ea.
Savings

Dimensions

  • Thickness: 0.1875"
  • Width: 1"
View more product details Click for more details
mild-steel-rectangle-bar-1018-cold-finish-1superZoom
Material Meets These Standard(s): ASTM-A108

Key Features

CUSTOM CUT MTR FREEMTRAvailable
View more product details View more product details

Displaying 1 - 25 of 101 results

Results per page

Can’t find what you’re looking for? Our team is here to help!