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Alloy Steel Sheet Plate

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Alloy Steel Sheet Plate

Alloy Steel Sheet/Plate is used for a variety of applications including automotive, aerospace, construction, industrial, and more. 4130 Steel Sheet/Plate and 4340 steel sheet/plate stock is available in full size and custom cut lengths.

Alloy Steel Sheet/Plate is available in 4130 Annealed, 4130 Normalized and 4340 Annealed.

We also carry Steel Plate in: Carbon Steel and Stainless Steel

Relevant Knowledge Hub Resources: Understanding Steel | 5 Reasons to Cut-to-Size | Weight Calculator

Marketplace Icon

Defense Grade Store

Material Properties

Alloy Steel Product Guide |

Alloy Steel Sheet/Plate Tolerances

sheet-sheet-large-new-min-4superZoom-main

Alloy Steel Sheet Plate

Alloy Steel Sheet/Plate is used for a variety of applications including automotive, aerospace, construction, industrial, and more. 4130 Steel Sheet/Plate and 4340 steel sheet/plate stock is available in full size and custom cut lengths.

Alloy Steel Sheet/Plate is available in 4130 Annealed, 4130 Normalized and 4340 Annealed.

We also carry Steel Plate in: Carbon Steel and Stainless Steel

Relevant Knowledge Hub Resources: Understanding Steel | 5 Reasons to Cut-to-Size | Weight Calculator

Marketplace Icon

Defense Grade Store

Material Properties

Alloy Steel Product Guide |

Alloy Steel Sheet/Plate Tolerances

Precision Ground 4130 Alloy Steel Blanks

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81 results

81 results

3/16" Alloy Steel Plate AR400 Part # mp-00064679

Sold & Shipped by Metal Mart Studio LLC

Select a Size

QTY

Update

$100.00 for 1

$100.00 ea.

Dimensions

Thickness: 0.188"

Click for more details

3/16" Alloy Steel Plate AR400-mob{product.code}

Key Features

CUSTOM CUT

U.S.A. Made DFARS Compliant

MTR AVAILABLE product return

product return

Non-returnable

View more product details

Click for more details

3/16" Alloy Steel Plate AR400-deskmp-00064679

3/16" Alloy Steel Plate AR400 Part # mp-00064679

Dimensions

Thickness: 0.188"

Select a Size

12″ X 12″ (1 X 1 ft.) - $100.00 ea.
24″ X 24″ (2 X 2 ft.) - $180.00 ea.
36″ X 36″ (3 X 3 ft.) - $460.00 ea.
48″ X 48″ (4 X 4 ft.) - $600.00 ea.

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

0.19" Alloy Steel Sheet 4130-Annealed Part # 12692

Select a Size or Custom Cut

QTY

Update

$83.52 for 1

$83.52 ea.

Dimensions

Thickness: 0.19"

Click for more details

alloy-steel-sheet-4130-annealed-1superZoom-mob{product.code}

Material Meets These Standard(s): AMS-6350 , AMS-6351 (Call for Availability) , ASTM-A505

Key Features

CUSTOM CUT

FREE MTR Available

View more product details

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alloy-steel-sheet-4130-annealed-1superZoom-desk12692

0.19" Alloy Steel Sheet 4130-Normalized Part # 13897

Select a Size or Custom Cut

QTY

Update

$74.03 for 1

$74.03 ea.

Dimensions

Thickness: 0.19"

Click for more details

alloy-steel-sheet-4130-normalized-1superZoom-mob{product.code}

Material Meets These Standard(s): ASTM-A505 , AMS-6345

Key Features

CUSTOM CUT

FREE MTR Available

View more product details

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alloy-steel-sheet-4130-normalized-1superZoom-desk13897

1/4" Alloy Steel Plate 4130-Annealed Part # 19816

Select a Cut Size

QTY

Update

$79.72 for 1

$79.72 ea.

Dimensions

Thickness: 0.25"

Click for more details

alloy-steel-sheet-4130-annealed-1superZoom-mob{product.code}

Key Features

FREE MTR Available

View more product details

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alloy-steel-sheet-4130-annealed-1superZoom-desk19816

1/4" Alloy Steel Plate AR500 Part # mp-00005199

Sold & Shipped by SendCutSend

Select a Size or Custom Cut

QTY

Update

$200.00 for 1

$200.00 ea.

Dimensions

Thickness: 0.25"

Click for more details

1/4" Alloy Steel Plate AR500-mob{product.code}

Key Features

CUSTOM CUT

U.S.A. Made DFARS Compliant

MTR NOT AVAILABLE product return

product return

Non-returnable

View more product details

Click for more details

1/4" Alloy Steel Plate AR500-deskmp-00005199

1/4" Alloy Steel Plate AR500 Part # mp-00005199

Dimensions

Thickness: 0.25"

Select a Size or Custom Cut

+ Create Custom Cut
12″ X 12″ (1 X 1 ft.) - $200.00 ea.
24″ X 24″ (2 X 2 ft.) - $600.00 ea.

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

1/4" Alloy Steel Plate 4130-Normalized Part # 14971

Select a Cut Size

QTY

Update

$78.85 for 1

$78.85 ea.

Dimensions

Thickness: 0.25"

Click for more details

alloy-steel-sheet-4130-annealed-1superZoom-mob{product.code}

Material Meets These Standard(s): AMS-6345 , ASTM-A505

Key Features

FREE MTR Available

View more product details

Click for more details

alloy-steel-sheet-4130-annealed-1superZoom-desk14971

1/4" Alloy Steel 4140 Precision Ground/Milled Blanks Part # mp-00000243

Sold & Shipped by TCI Precision Metals

Select a Size or Custom Cut

QTY

Update

$100.30 for 1

$100.30 ea.

Buy More & Save up to 10% !

Qty

Price ea.

Savings

2-4

$97.29

3%

5-9

$95.29

4%

10+

$90.27

10%

More

Less

Dimensions

Thickness: 0.25"
Tolerance: All Dimensions +/- .002˝

Click for more details

Placeholder for future product image

Key Features

CUSTOM CUT

U.S.A. Made DFARS Compliant

MTR AVAILABLE product return

product return

Returns Acceptable.

View more product details

Click for more details

Placeholder for future product image

1/4" Alloy Steel 4140 Precision Ground/Milled Blanks Part # mp-00000243

Dimensions

Thickness: 0.25"
Tolerance: All Dimensions +/- .002˝

Select a Size or Custom Cut

+ Create Custom Cut
2.0″ X 11.75″ (2.0 X 11.75 in.) - $100.30 ea.
4.0″ X 11.75″ (4.0 X 11.75 in.) - $139.06 ea.
6.0″ X 5.75″ (6.0 X 5.75 in.) - $115.17 ea.
6.0″ X 11.75″ (6.0 X 11.75 in.) - $176.71 ea.
12.0″ X 11.75″ (12.0 X 11.75 in.) - $293.71 ea.

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

1/4" Alloy Steel Sheet AR400 Part # mp-00064393

Sold & Shipped by SendCutSend

Select a Size or Custom Cut

QTY

Update

$200.00 for 1

$200.00 ea.

Dimensions

Thickness: 0.25"

Click for more details

1/4" Alloy Steel Sheet AR400-mob{product.code}

Key Features

CUSTOM CUT

U.S.A. Made DFARS Compliant

MTR NOT AVAILABLE product return

product return

Non-returnable

View more product details

Click for more details

1/4" Alloy Steel Sheet AR400-deskmp-00064393

1/4" Alloy Steel Sheet AR400 Part # mp-00064393

Dimensions

Thickness: 0.25"

Select a Size or Custom Cut

+ Create Custom Cut
12″ X 12″ (1 X 1 ft.) - $200.00 ea.
24″ X 24″ (2 X 2 ft.) - $600.00 ea.

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

5/16" Alloy Steel Plate 4130-Annealed Part # 27784

Select a Cut Size

QTY

Update

$224.37 for 1

$224.37 ea.

Dimensions

Thickness: 0.3125"

Click for more details

alloy-steel-sheet-4130-annealed-1superZoom-mob{product.code}

Key Features

View more product details

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alloy-steel-sheet-4130-annealed-1superZoom-desk27784

3/8" Alloy Steel 4140 Precision Ground/Milled Blanks Part # mp-00000328

Sold & Shipped by TCI Precision Metals

Select a Size or Custom Cut

QTY

Update

$106.67 for 1

$106.67 ea.

Buy More & Save up to 10% !

Qty

Price ea.

Savings

2-4

$103.47

2%

5-9

$101.34

4%

10+

$96.00

10%

More

Less

Dimensions

Thickness: 0.375"
Tolerance: All Dimensions +/- .002˝

Click for more details

3/8" Alloy Steel 4140 Precision Ground/Milled Blanks-mob{product.code}

Key Features

CUSTOM CUT

U.S.A. Made DFARS Compliant

MTR AVAILABLE product return

product return

Returns Acceptable.

View more product details

Click for more details

3/8" Alloy Steel 4140 Precision Ground/Milled Blanks-deskmp-00000328

3/8" Alloy Steel 4140 Precision Ground/Milled Blanks Part # mp-00000328

Dimensions

Thickness: 0.375"
Tolerance: All Dimensions +/- .002˝

Select a Size or Custom Cut

+ Create Custom Cut
2.0″ X 11.75″ (2.0 X 11.75 in.) - $106.67 ea.
4.0″ X 11.75″ (4.0 X 11.75 in.) - $148.63 ea.
6.0″ X 5.75″ (6.0 X 5.75 in.) - $122.64 ea.
6.0″ X 11.75″ (6.0 X 11.75 in.) - $193.85 ea.
12.0″ X 11.75″ (12.0 X 11.75 in.) - $333.59 ea.

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

3/8" Alloy Steel Plate AR500 Part # mp-00005200

Sold & Shipped by SendCutSend

Select a Size or Custom Cut

QTY

Update

$750.00 for 1

$750.00 ea.

Dimensions

Thickness: 0.375"

Click for more details

3/8" Alloy Steel Plate AR500-mob{product.code}

Key Features

CUSTOM CUT

U.S.A. Made DFARS Compliant

MTR NOT AVAILABLE product return

product return

Non-returnable

View more product details

Click for more details

3/8" Alloy Steel Plate AR500-deskmp-00005200

3/8" Alloy Steel Plate AR500 Part # mp-00005200

Dimensions

Thickness: 0.375"

Select a Size or Custom Cut

+ Create Custom Cut
24″ X 24″ (2 X 2 ft.) - $750.00 ea.

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

3/8" Alloy Steel Plate 4130-Annealed Part # 14471

Select a Cut Size

QTY

Update

$196.33 for 1

$196.33 ea.

Dimensions

Thickness: 0.375"

Click for more details

alloy-steel-sheet-4130-annealed-1superZoom-mob{product.code}

Key Features

View more product details

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alloy-steel-sheet-4130-annealed-1superZoom-desk14471

3/8" Alloy Steel Plate 4130 Normalized Part # 26894

Select a Cut Size

QTY

Update

$115.36 for 1

$115.36 ea.

Dimensions

Thickness: 0.375"

Click for more details

alloy-steel-sheet-4130-annealed-1superZoom-mob{product.code}

Key Features

FREE MTR Available

View more product details

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alloy-steel-sheet-4130-annealed-1superZoom-desk26894

3/8" Alloy Steel Plate AR400 Part # mp-00064678

Sold & Shipped by Metal Mart Studio LLC

Select a Size

QTY

Update

$170.00 for 1

$170.00 ea.

Dimensions

Thickness: 0.375"

Click for more details

3/8" Alloy Steel Plate AR400-mob{product.code}

Key Features

CUSTOM CUT

U.S.A. Made DFARS Compliant

MTR AVAILABLE product return

product return

Non-returnable

View more product details

Click for more details

3/8" Alloy Steel Plate AR400-deskmp-00064678

3/8" Alloy Steel Plate AR400 Part # mp-00064678

Dimensions

Thickness: 0.375"

Select a Size

12″ X 12″ (1 X 1 ft.) - $170.00 ea.
24″ X 24″ (2 X 2 ft.) - $270.00 ea.
36″ X 36″ (3 X 3 ft.) - $500.00 ea.
48″ X 48″ (4 X 4 ft.) - $800.00 ea.

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

0.396" Alloy Steel Plate 4140-Annealed Precision Ground - Part # 29170

Pricing and availability for this item changes frequently. Contact us now for a fast quote.

1/2" Alloy Steel 4140 Precision Ground/Milled Blanks Part # mp-00000335

Sold & Shipped by TCI Precision Metals

Select a Size or Custom Cut

QTY

Update

$116.02 for 1

$116.02 ea.

Buy More & Save up to 9% !

Qty

Price ea.

Savings

2-4

$112.54

2%

5-9

$110.22

4%

10+

$104.42

9%

More

Less

Dimensions

Thickness: 0.5"
Tolerance: All Dimensions +/- .002˝

Click for more details

Placeholder for future product image

Key Features

CUSTOM CUT

U.S.A. Made DFARS Compliant

MTR AVAILABLE product return

product return

Returns Acceptable.

View more product details

Click for more details

Placeholder for future product image

1/2" Alloy Steel 4140 Precision Ground/Milled Blanks Part # mp-00000335

Dimensions

Thickness: 0.5"
Tolerance: All Dimensions +/- .002˝

Select a Size or Custom Cut

+ Create Custom Cut
2.0″ X 11.75″ (2.0 X 11.75 in.) - $116.02 ea.
4.0″ X 11.75″ (4.0 X 11.75 in.) - $161.43 ea.
6.0″ X 5.75″ (6.0 X 5.75 in.) - $132.17 ea.
6.0″ X 11.75″ (6.0 X 11.75 in.) - $210.57 ea.
12.0″ X 11.75″ (12.0 X 11.75 in.) - $362.06 ea.

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

1/2" Alloy Steel Plate AR500 Part # mp-00005201

Sold & Shipped by Metal Mart Studio LLC

Select a Size or Custom Cut

QTY

Update

$250.00 for 1

$250.00 ea.

Dimensions

Thickness: 0.5"

Click for more details

1/2" Alloy Steel Plate AR500-mob{product.code}

Key Features

CUSTOM CUT

U.S.A. Made DFARS Compliant

MTR AVAILABLE product return

product return

Non-returnable

View more product details

Click for more details

1/2" Alloy Steel Plate AR500-deskmp-00005201

1/2" Alloy Steel Plate AR500 Part # mp-00005201

Dimensions

Thickness: 0.5"

Select a Size or Custom Cut

+ Create Custom Cut
12″ X 12″ (1 X 1 ft.) - $250.00 ea.
24″ X 24″ (2 X 2 ft.) - $400.00 ea.
36″ X 36″ (3 X 3 ft.) - $768.95 ea.
48″ X 48″ (4 X 4 ft.) - $1,154.36 ea.

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

1/2" Alloy Steel Plate 4130-Annealed Part # 25659

Select a Cut Size

QTY

Update

$297.30 for 1

$297.30 ea.

Dimensions

Thickness: 0.5"

Click for more details

alloy-steel-sheet-4130-annealed-1superZoom-mob{product.code}

Key Features

FREE MTR Available

View more product details

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alloy-steel-sheet-4130-annealed-1superZoom-desk25659

1/2" Alloy Steel Plate AR400 Part # mp-00064682

Sold & Shipped by Metal Mart Studio LLC

Select a Size

QTY

Update

$160.00 for 1

$160.00 ea.

Dimensions

Thickness: 0.5"

Click for more details

1/2" Alloy Steel Plate AR400-mob{product.code}

Key Features

CUSTOM CUT

U.S.A. Made DFARS Compliant

MTR AVAILABLE product return

product return

Non-returnable

View more product details

Click for more details

1/2" Alloy Steel Plate AR400-deskmp-00064682

1/2" Alloy Steel Plate AR400 Part # mp-00064682

Dimensions

Thickness: 0.5"

Select a Size

12″ X 12″ (1 X 1 ft.) - $160.00 ea.
24″ X 24″ (2 X 2 ft.) - $375.00 ea.
36″ X 36″ (3 X 3 ft.) - $900.00 ea.
36″ X 48″ (3 X 4 ft.) - $1,200.00 ea.
48″ X 48″ (4 X 4 ft.) - $1,000.00 ea.

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

5/8" Alloy Steel 4140 Precision Ground/Milled Blanks Part # mp-00000305

Sold & Shipped by TCI Precision Metals

Select a Size or Custom Cut

QTY

Update

$124.61 for 1

$124.61 ea.

Buy More & Save up to 9% !

Qty

Price ea.

Savings

2-4

$120.87

3%

5-9

$118.38

4%

10+

$112.15

9%

More

Less

Dimensions

Thickness: 0.625"
Tolerance: All Dimensions +/- .002˝

Click for more details

5/8" Alloy Steel 4140 Precision Ground/Milled Blanks-mob{product.code}

Key Features

CUSTOM CUT

U.S.A. Made DFARS Compliant

MTR AVAILABLE product return

product return

Returns Acceptable.

View more product details

Click for more details

5/8" Alloy Steel 4140 Precision Ground/Milled Blanks-deskmp-00000305

5/8" Alloy Steel 4140 Precision Ground/Milled Blanks Part # mp-00000305

Dimensions

Thickness: 0.625"
Tolerance: All Dimensions +/- .002˝

Select a Size or Custom Cut

+ Create Custom Cut
2.0″ X 11.75″ (2.0 X 11.75 in.) - $124.61 ea.
4.0″ X 11.75″ (4.0 X 11.75 in.) - $177.58 ea.
6.0″ X 5.75″ (6.0 X 5.75 in.) - $141.15 ea.
6.0″ X 11.75″ (6.0 X 11.75 in.) - $226.48 ea.
12.0″ X 11.75″ (12.0 X 11.75 in.) - $389.44 ea.

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

5/8" Alloy Steel Plate 4130-Normalized Part # 25699

Select a Cut Size

QTY

Update

$812.03 for 1

$812.03 ea.

Dimensions

Thickness: 0.625"
Ships In: 5-7 Business Days

Click for more details

alloy-steel-sheet-4130-annealed-1superZoom-mob{product.code}

Key Features

FREE MTR Available

View more product details

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alloy-steel-sheet-4130-annealed-1superZoom-desk25699

5/8" Alloy Steel Plate AR400 Part # mp-00064676

Sold & Shipped by Metal Mart Studio LLC

Select a Size

QTY

Update

$130.00 for 1

$130.00 ea.

Dimensions

Thickness: 0.625"

Click for more details

5/8" Alloy Steel Plate AR400-mob{product.code}

Key Features

CUSTOM CUT

U.S.A. Made DFARS Compliant

MTR AVAILABLE product return

product return

Non-returnable

View more product details

Click for more details

5/8" Alloy Steel Plate AR400-deskmp-00064676

5/8" Alloy Steel Plate AR400 Part # mp-00064676

Dimensions

Thickness: 0.625"

Select a Size

12″ X 12″ (1 X 1 ft.) - $130.00 ea.
24″ X 24″ (2 X 2 ft.) - $400.00 ea.
36″ X 36″ (3 X 3 ft.) - $1,524.48 ea.
48″ X 48″ (4 X 4 ft.) - $1,450.00 ea.

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

3/4" Alloy Steel 4140 Precision Ground/Milled Blanks Part # mp-00000312

Select a Size or Custom Cut

QTY

Update

$135.83 for 1

$135.83 ea.

Buy More & Save up to 9% !

Qty

Price ea.

Savings

2-4

$131.76

2%

5-9

$129.04

4%

10+

$122.25

9%

More

Less

Dimensions

Thickness: 0.75"
Tolerance: All Dimensions +/- .002˝

Click for more details

Placeholder for future product image

Key Features

CUSTOM CUT

U.S.A. Made DFARS Compliant

MTR AVAILABLE product return

product return

Returns Acceptable.

View more product details

Click for more details

Placeholder for future product image

3/4" Alloy Steel 4140 Precision Ground/Milled Blanks Part # mp-00000312

Dimensions

Thickness: 0.75"
Tolerance: All Dimensions +/- .002˝

Select a Size or Custom Cut

+ Create Custom Cut
2.0″ X 11.75″ (2.0 X 11.75 in.) - $135.83 ea.
4.0″ X 11.75″ (4.0 X 11.75 in.) - $193.04 ea.
6.0″ X 5.75″ (6.0 X 5.75 in.) - $152.69 ea.
6.0″ X 11.75″ (6.0 X 11.75 in.) - $246.19 ea.

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

3/4" Alloy Steel Plate 4130-Annealed Part # 12980

Select a Cut Size

QTY

Update

$605.36 for 1

$605.36 ea.

Dimensions

Thickness: 0.75"
Ships In: 5-7 Business Days

Click for more details

alloy-steel-sheet-4130-annealed-1superZoom-mob{product.code}

Key Features

FREE MTR Available

View more product details

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alloy-steel-sheet-4130-annealed-1superZoom-desk12980

3/4" Alloy Steel Plate 4130-Normalized Part # 25349

Select a Cut Size

QTY

Update

$392.60 for 1

$392.60 ea.

Dimensions

Thickness: 0.75"
Ships In: 5-7 Business Days

Click for more details

alloy-steel-sheet-4130-annealed-1superZoom-mob{product.code}

Key Features

U.S.A. Made

FREE MTR Available

View more product details

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alloy-steel-sheet-4130-annealed-1superZoom-desk25349

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