Metals
Plastics
Other Raw Materials
Machine Ready Stock
Sample Packs & Protoboxes
Bearings, Shafts and Gears
Cable and Wire
Fastening and Bonding
Fittings
Finishing Products
Framing Systems
Tools and Fabricating
Facilities and Maintenance
Architectural & Decorative Components

Prototype without pressure, shop Online Metals protoboxes

Open for Orders 24/7!

Get a Quick Quote

Deals

Get a Quick Quote

Alloy Steel Rectangle Bar

Show full description

alloy-steel-rectangle-bar-4142-prehardened-1superZoom-main

Alloy Steel Rectangle Bar

We carry Alloy Steel Rectangle/Flat Bar in 4142 Prehardened (Chromoly) and 4340. Alloy steel rectangle/flat bar stock is available in full size and custom cut lengths.

Material Properties

Alloy Steel Product Guide |

Alloy Steel Rectangle Bar Tolerances

alloy-steel-rectangle-bar-4142-prehardened-1superZoom-main

Alloy Steel Rectangle Bar

We carry Alloy Steel Rectangle/Flat Bar in 4142 Prehardened (Chromoly) and 4340. Alloy steel rectangle/flat bar stock is available in full size and custom cut lengths.

Material Properties

Alloy Steel Product Guide |

Alloy Steel Rectangle Bar Tolerances

Sort by

246 results

246 results

.248" x 2.0" Carbon Steel Rectangle Bar 52100 Part # mp-00001186

Sold & Shipped by Alpha Knife Supply

Select a Size

QTY

Update

$54.00 for 1

$54.00 ea.

Dimensions

Thickness: 0.248"
Width: 2"

Click for more details

.248" x 2.0" Carbon Steel Rectangle Bar 52100-mob{product.code}

Key Features

CUSTOM CUT DFARS Compliant

MTR NOT AVAILABLE product return

product return

Returns Acceptable.

View more product details

Click for more details

.248" x 2.0" Carbon Steel Rectangle Bar 52100-deskmp-00001186

.248" x 2.0" Carbon Steel Rectangle Bar 52100 Part # mp-00001186

Dimensions

Thickness: 0.248"
Width: 2"

Select a Size

11.6″ (11.6 in.) - $54.00 ea.

Seller's Info	Custom Cut	MTR	USA Made	Returns	DFARS	Price	Qty

.248" x 3.0" Carbon Steel Rectangle Bar 52100 Part # mp-00001183

Sold & Shipped by Alpha Knife Supply

Select a Size

QTY

Update

$81.00 for 1

$81.00 ea.

Dimensions

Thickness: 0.248"
Width: 3"

Click for more details

.248" x 3.0" Carbon Steel Rectangle Bar 52100-mob{product.code}

Key Features

CUSTOM CUT DFARS Compliant

MTR NOT AVAILABLE product return

product return

Returns Acceptable.

View more product details

Click for more details

.248" x 3.0" Carbon Steel Rectangle Bar 52100-deskmp-00001183

.248" x 3.0" Carbon Steel Rectangle Bar 52100 Part # mp-00001183

Dimensions

Thickness: 0.248"
Width: 3"

Select a Size

11.6″ (11.6 in.) - $81.00 ea.

Seller's Info	Custom Cut	MTR	USA Made	Returns	DFARS	Price	Qty

1/4" x 6" Alloy Steel Rectangle Bar 4142-Prehardened Part # 19245

Select a Cut Size

QTY

Update

$274.88 for 1

$274.88 ea.

Dimensions

Thickness: 0.25"
Width: 6"

Click for more details

alloy-steel-rectangle-bar-4142-prehardened-1superZoom-mob{product.code}

Material Meets These Standard(s): ASTM-A322

Key Features

FREE MTR Available

View more product details

Click for more details

alloy-steel-rectangle-bar-4142-prehardened-1superZoom-desk19245

1/4" x 8" Alloy Steel Rectangle Bar 4142-Prehardened Part # 19252

Select a Cut Size

QTY

Update

$415.25 for 1

$415.25 ea.

Dimensions

Thickness: 0.25"
Width: 8"

Click for more details

alloy-steel-rectangle-bar-4142-prehardened-1superZoom-mob{product.code}

Material Meets These Standard(s): ASTM-A322

Key Features

FREE MTR Available

View more product details

Click for more details

alloy-steel-rectangle-bar-4142-prehardened-1superZoom-desk19252

1/4" x 3/8" Alloy Steel Rectangle Bar 4142-Prehardened Part # 19123

Select a Cut Size

QTY

Update

$63.83 for 1

$63.83 ea.

Dimensions

Thickness: 0.25"
Width: 0.375"

Click for more details

alloy-steel-rectangle-bar-4142-prehardened-1superZoom-mob{product.code}

Material Meets These Standard(s): ASTM-A322

Key Features

FREE MTR Available

View more product details

Click for more details

alloy-steel-rectangle-bar-4142-prehardened-1superZoom-desk19123

1/4" x 1/2" Alloy Steel Rectangle Bar 4142-Prehardened Part # 19129

Select a Cut Size

QTY

Update

$58.90 for 1

$58.90 ea.

Dimensions

Thickness: 0.25"
Width: 0.5"

Click for more details

alloy-steel-rectangle-bar-4142-prehardened-1superZoom-mob{product.code}

Material Meets These Standard(s): ASTM-A322

Key Features

FREE MTR Available

View more product details

Click for more details

alloy-steel-rectangle-bar-4142-prehardened-1superZoom-desk19129

1/4" x 4" Alloy Steel Rectangle Bar 4142-Prehardened Part # 19228

Select a Cut Size

QTY

Update

$189.18 for 1

$189.18 ea.

Dimensions

Thickness: 0.25"
Width: 4"

Click for more details

alloy-steel-rectangle-bar-4142-prehardened-1superZoom-mob{product.code}

Material Meets These Standard(s): ASTM-A322

Key Features

FREE MTR Available

View more product details

Click for more details

alloy-steel-rectangle-bar-4142-prehardened-1superZoom-desk19228

1/4" x 5" Alloy Steel Rectangle Bar 4142-Prehardened Part # 19237

Select a Cut Size

QTY

Update

$229.63 for 1

$229.63 ea.

Dimensions

Thickness: 0.25"
Width: 5"

Click for more details

alloy-steel-rectangle-bar-4142-prehardened-1superZoom-mob{product.code}

Material Meets These Standard(s): ASTM-A322

Key Features

FREE MTR Available

View more product details

Click for more details

alloy-steel-rectangle-bar-4142-prehardened-1superZoom-desk19237

1/4" x 5/8" Alloy Steel Rectangle Bar 4142-Prehardened Part # 19134

Select a Cut Size

QTY

Update

$60.90 for 1

$60.90 ea.

Dimensions

Thickness: 0.25"
Width: 0.625"

Click for more details

alloy-steel-rectangle-bar-4142-prehardened-1superZoom-mob{product.code}

Material Meets These Standard(s): ASTM-A322

Key Features

FREE MTR Available

View more product details

Click for more details

alloy-steel-rectangle-bar-4142-prehardened-1superZoom-desk19134

1/4" x 3/4" Alloy Steel Rectangle Bar 4142-Prehardened Part # 19142

Select a Cut Size

QTY

Update

$59.73 for 1

$59.73 ea.

Dimensions

Thickness: 0.25"
Width: 0.75"

Click for more details

alloy-steel-rectangle-bar-4142-prehardened-1superZoom-mob{product.code}

Material Meets These Standard(s): ASTM-A322

Key Features

FREE MTR Available

View more product details

Click for more details

alloy-steel-rectangle-bar-4142-prehardened-1superZoom-desk19142

1/4" x 1" Alloy Steel Rectangle Bar 4142-Prehardened Part # 19151

Select a Cut Size

QTY

Update

$71.83 for 1

$71.83 ea.

Dimensions

Thickness: 0.25"
Width: 1"

Click for more details

alloy-steel-rectangle-bar-4142-prehardened-1superZoom-mob{product.code}

Material Meets These Standard(s): ASTM-A322

Key Features

FREE MTR Available

View more product details

Click for more details

alloy-steel-rectangle-bar-4142-prehardened-1superZoom-desk19151

1/4" x 1 1/4" Alloy Steel Rectangle Bar 4142-Prehardened Part # 19159

Select a Cut Size

QTY

Update

$80.85 for 1

$80.85 ea.

Dimensions

Thickness: 0.25"
Width: 1.25"

Click for more details

alloy-steel-rectangle-bar-4142-prehardened-1superZoom-mob{product.code}

Material Meets These Standard(s): ASTM-A322

Key Features

FREE MTR Available

View more product details

Click for more details

alloy-steel-rectangle-bar-4142-prehardened-1superZoom-desk19159

1/4" x 1 1/2" Alloy Steel Rectangle Bar 4142-Prehardened Part # 19170

Select a Cut Size

QTY

Update

$91.08 for 1

$91.08 ea.

Dimensions

Thickness: 0.25"
Width: 1.5"

Click for more details

alloy-steel-rectangle-bar-4142-prehardened-1superZoom-mob{product.code}

Material Meets These Standard(s): ASTM-A322

Key Features

FREE MTR Available

View more product details

Click for more details

alloy-steel-rectangle-bar-4142-prehardened-1superZoom-desk19170

1/4" x 1 3/4" Alloy Steel Rectangle Bar 4142-Prehardened Part # 19179

Select a Cut Size

QTY

Update

$106.85 for 1

$106.85 ea.

Dimensions

Thickness: 0.25"
Width: 1.75"

Click for more details

alloy-steel-rectangle-bar-4142-prehardened-1superZoom-mob{product.code}

Material Meets These Standard(s): ASTM-A322

Key Features

FREE MTR Available

View more product details

Click for more details

alloy-steel-rectangle-bar-4142-prehardened-1superZoom-desk19179

1/4" x 2" Alloy Steel Rectangle Bar 4142-Prehardened Part # 19189

Select a Cut Size

QTY

Update

$110.25 for 1

$110.25 ea.

Dimensions

Thickness: 0.25"
Width: 2"

Click for more details

alloy-steel-rectangle-bar-4142-prehardened-1superZoom-mob{product.code}

Material Meets These Standard(s): ASTM-A322

Key Features

FREE MTR Available

View more product details

Click for more details

alloy-steel-rectangle-bar-4142-prehardened-1superZoom-desk19189

1/4" x 2 1/2" Alloy Steel Rectangle Bar 4142-Prehardened Part # 19198

Select a Cut Size

QTY

Update

$130.50 for 1

$130.50 ea.

Dimensions

Thickness: 0.25"
Width: 2.5"

Click for more details

alloy-steel-rectangle-bar-4142-prehardened-1superZoom-mob{product.code}

Material Meets These Standard(s): ASTM-A322

Key Features

FREE MTR Available

View more product details

Click for more details

alloy-steel-rectangle-bar-4142-prehardened-1superZoom-desk19198

1/4" x 3" Alloy Steel Rectangle Bar 4142-Prehardened Part # 19209

Select a Cut Size

QTY

Update

$149.75 for 1

$149.75 ea.

Dimensions

Thickness: 0.25"
Width: 3"

Click for more details

alloy-steel-rectangle-bar-4142-prehardened-1superZoom-mob{product.code}

Material Meets These Standard(s): ASTM-A322

Key Features

FREE MTR Available

View more product details

Click for more details

alloy-steel-rectangle-bar-4142-prehardened-1superZoom-desk19209

1/4" x 3 1/2" Alloy Steel Rectangle Bar 4142-Prehardened Part # 19218

Select a Cut Size

QTY

Update

$182.30 for 1

$182.30 ea.

Dimensions

Thickness: 0.25"
Width: 3.5"

Click for more details

alloy-steel-rectangle-bar-4142-prehardened-1superZoom-mob{product.code}

Material Meets These Standard(s): ASTM-A322

Key Features

FREE MTR Available

View more product details

Click for more details

alloy-steel-rectangle-bar-4142-prehardened-1superZoom-desk19218

1/4" x 10" Alloy Steel Rectangle Bar 4142-Prehardened Part # 19259

Select a Cut Size

QTY

Update

$510.75 for 1

$510.75 ea.

Dimensions

Thickness: 0.25"
Width: 10"

Click for more details

alloy-steel-rectangle-bar-4142-prehardened-1superZoom-mob{product.code}

Material Meets These Standard(s): ASTM-A322

Key Features

FREE MTR Available

View more product details

Click for more details

alloy-steel-rectangle-bar-4142-prehardened-1superZoom-desk19259

0.25" X 12" Alloy Steel Rectangle Bar 4140 Heat Treated [Cut from Plate] Part # mp-00002532

Sold & Shipped by MSP Metals

Select a Size or Custom Cut

QTY

Update

$149.95 for 1

$149.95 ea.

Dimensions

Thickness: 0.25"
Width: 12"

Click for more details

0.25" X 12" Alloy Steel Rectangle Bar 4140 Heat Treated [Cut from Plate]-mob{product.code}

Material Meets These Standard(s): ASTM-A 829

Key Features

CUSTOM CUT DFARS Compliant

MTR AVAILABLE product return

product return

Non-returnable

View more product details

Click for more details

0.25" X 12" Alloy Steel Rectangle Bar 4140 Heat Treated [Cut from Plate]-deskmp-00002532

0.25" X 12" Alloy Steel Rectangle Bar 4140 Heat Treated [Cut from Plate] Part # mp-00002532

Dimensions

Thickness: 0.25"
Width: 12"

Material Meets These Standard(s): ASTM-A 829

Select a Size or Custom Cut

+ Create Custom Cut
12″ (1 ft.) - $149.95 ea.
24″ (2 ft.) - $299.89 ea.
36″ (3 ft.) - $449.85 ea.
48″ (4 ft.) - $599.79 ea.
60″ (5 ft.) - $749.74 ea.
72″ (6 ft.) - $899.68 ea.

Seller's Info	Custom Cut	MTR	USA Made	Returns	DFARS	Price	Qty

0.25" X 8" Alloy Steel Rectangle Bar 4140 Heat Treated [Cut from Plate] Part # mp-00002555

Sold & Shipped by MSP Metals

Select a Size or Custom Cut

QTY

Update

$100.44 for 1

$100.44 ea.

Dimensions

Thickness: 0.25"
Width: 8"

Click for more details

0.25" X 8" Alloy Steel Rectangle Bar 4140 Heat Treated [Cut from Plate]-mob{product.code}

Material Meets These Standard(s): ASTM-A 829

Key Features

CUSTOM CUT DFARS Compliant

MTR AVAILABLE product return

product return

Non-returnable

View more product details

Click for more details

0.25" X 8" Alloy Steel Rectangle Bar 4140 Heat Treated [Cut from Plate]-deskmp-00002555

0.25" X 8" Alloy Steel Rectangle Bar 4140 Heat Treated [Cut from Plate] Part # mp-00002555

Dimensions

Thickness: 0.25"
Width: 8"

Material Meets These Standard(s): ASTM-A 829

Select a Size or Custom Cut

+ Create Custom Cut
12″ (1 ft.) - $100.44 ea.
24″ (2 ft.) - $200.87 ea.
36″ (3 ft.) - $301.31 ea.
48″ (4 ft.) - $401.74 ea.
60″ (5 ft.) - $502.20 ea.
72″ (6 ft.) - $602.62 ea.

Seller's Info	Custom Cut	MTR	USA Made	Returns	DFARS	Price	Qty

0.25" X 1.5" Alloy Steel Rectangle Bar 4140 Heat Treated [Cut from Plate] Part # mp-00002591

Sold & Shipped by MSP Metals

Select a Size or Custom Cut

QTY

Update

$18.39 for 1

$18.39 ea.

Dimensions

Thickness: 0.25"
Width: 1.5"

Click for more details

0.25" X 1.5" Alloy Steel Rectangle Bar 4140 Heat Treated [Cut from Plate]-mob{product.code}

Material Meets These Standard(s): ASTM-A 829

Key Features

CUSTOM CUT DFARS Compliant

MTR AVAILABLE product return

product return

Non-returnable

View more product details

Click for more details

0.25" X 1.5" Alloy Steel Rectangle Bar 4140 Heat Treated [Cut from Plate]-deskmp-00002591

0.25" X 1.5" Alloy Steel Rectangle Bar 4140 Heat Treated [Cut from Plate] Part # mp-00002591

Dimensions

Thickness: 0.25"
Width: 1.5"

Material Meets These Standard(s): ASTM-A 829

Select a Size or Custom Cut

+ Create Custom Cut
12″ (1 ft.) - $18.39 ea.
24″ (2 ft.) - $36.78 ea.
36″ (3 ft.) - $55.17 ea.
48″ (4 ft.) - $73.56 ea.
60″ (5 ft.) - $91.95 ea.
72″ (6 ft.) - $110.34 ea.

Seller's Info	Custom Cut	MTR	USA Made	Returns	DFARS	Price	Qty

0.25" X 4" Alloy Steel Rectangle Bar 4140 Heat Treated [Cut from Plate] Part # mp-00002626

Sold & Shipped by MSP Metals

Select a Size or Custom Cut

QTY

Update

$49.52 for 1

$49.52 ea.

Dimensions

Thickness: 0.25"
Width: 4"

Click for more details

0.25" X 4" Alloy Steel Rectangle Bar 4140 Heat Treated [Cut from Plate]-mob{product.code}

Material Meets These Standard(s): ASTM-A 829

Key Features

CUSTOM CUT DFARS Compliant

MTR AVAILABLE product return

product return

Non-returnable

View more product details

Click for more details

0.25" X 4" Alloy Steel Rectangle Bar 4140 Heat Treated [Cut from Plate]-deskmp-00002626

0.25" X 4" Alloy Steel Rectangle Bar 4140 Heat Treated [Cut from Plate] Part # mp-00002626

Dimensions

Thickness: 0.25"
Width: 4"

Material Meets These Standard(s): ASTM-A 829

Select a Size or Custom Cut

+ Create Custom Cut
12″ (1 ft.) - $49.52 ea.
24″ (2 ft.) - $99.02 ea.
36″ (3 ft.) - $148.53 ea.
48″ (4 ft.) - $198.04 ea.
60″ (5 ft.) - $247.55 ea.
72″ (6 ft.) - $297.06 ea.

Seller's Info	Custom Cut	MTR	USA Made	Returns	DFARS	Price	Qty

0.25" X 2" Alloy Steel Rectangle Bar 4140 Heat Treated [Cut from Plate] Part # mp-00002633

Sold & Shipped by MSP Metals

Select a Size or Custom Cut

QTY

Update

$25.46 for 1

$25.46 ea.

Dimensions

Thickness: 0.25"
Width: 2"

Click for more details

0.25" X 2" Alloy Steel Rectangle Bar 4140 Heat Treated [Cut from Plate]-mob{product.code}

Material Meets These Standard(s): ASTM-A 829

Key Features

CUSTOM CUT DFARS Compliant

MTR AVAILABLE product return

product return

Non-returnable

View more product details

Click for more details

0.25" X 2" Alloy Steel Rectangle Bar 4140 Heat Treated [Cut from Plate]-deskmp-00002633

0.25" X 2" Alloy Steel Rectangle Bar 4140 Heat Treated [Cut from Plate] Part # mp-00002633

Dimensions

Thickness: 0.25"
Width: 2"

Material Meets These Standard(s): ASTM-A 829

Select a Size or Custom Cut

+ Create Custom Cut
12″ (1 ft.) - $25.46 ea.
24″ (2 ft.) - $50.93 ea.
36″ (3 ft.) - $76.38 ea.
48″ (4 ft.) - $101.85 ea.
60″ (5 ft.) - $127.31 ea.
72″ (6 ft.) - $152.78 ea.

Seller's Info	Custom Cut	MTR	USA Made	Returns	DFARS	Price	Qty

0.25" X 6" Alloy Steel Rectangle Bar 4140 Heat Treated [Cut from Plate] Part # mp-00002636

Sold & Shipped by MSP Metals

Select a Size or Custom Cut

QTY

Update

$74.97 for 1

$74.97 ea.

Dimensions

Thickness: 0.25"
Width: 6"

Click for more details

0.25" X 6" Alloy Steel Rectangle Bar 4140 Heat Treated [Cut from Plate]-mob{product.code}

Material Meets These Standard(s): ASTM-A 829

Key Features

CUSTOM CUT DFARS Compliant

MTR AVAILABLE product return

product return

Non-returnable

View more product details

Click for more details

0.25" X 6" Alloy Steel Rectangle Bar 4140 Heat Treated [Cut from Plate]-deskmp-00002636

0.25" X 6" Alloy Steel Rectangle Bar 4140 Heat Treated [Cut from Plate] Part # mp-00002636

Dimensions

Thickness: 0.25"
Width: 6"

Material Meets These Standard(s): ASTM-A 829

Select a Size or Custom Cut

+ Create Custom Cut
12″ (1 ft.) - $74.97 ea.
24″ (2 ft.) - $149.95 ea.
36″ (3 ft.) - $224.92 ea.
48″ (4 ft.) - $299.89 ea.
60″ (5 ft.) - $374.86 ea.
72″ (6 ft.) - $449.85 ea.

Seller's Info	Custom Cut	MTR	USA Made	Returns	DFARS	Price	Qty

Displaying 51 - 75 of 246 results

Results per page

PREVIOUS
3
4
5
6
...
NEXT

Can't find what you're looking for?

Contact us for a custom quote