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Alloy Steel
Alloy Steel Sheet Plate
4140
Alloy Steel Sheet/Plate 4140

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Alloy Steel Sheet/Plate 4140

-19 Products

Alloy Steel 4140 Product Guide

Alloy steel 4140 sheet/plate is a high-strength, low alloy steel containing chromium, molybdenum, and manganese. It offers excellent strength, fatigue resistance, toughness, and abrasion resistance, making it suitable for demanding applications like gears, shafts, fixtures, and components in industries such as aerospace, automotive, oil/gas, agriculture, and defense. The sheet/plate form allows for fabrication into various shapes and parts, while heat treatments like quenching and tempering enable tailoring its hardness and strength over an extensive range.

Precision Ground 4130 Alloy Steel Blanks

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Material

Alloy Steel

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Sheet/Plate

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4140

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Annealed

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Precision Ground

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6-Side Precision Blank

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inch

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TCI Precision Metals

%7B%22item_id%22%3A%22mp-00000243%22%2C%22item_name%22%3A%22.250%5C%22+Alloy+Steel+4140+Precision+Ground%2FMilled+Blanks%22%2C%22item_brand%22%3A%22%22%2C%22item_category%22%3A%22Alloy+Steel%22%2C%22item_category2%22%3A%22Sheet%2FPlate%22%2C%22item_category3%22%3A%224140%22%2C%22item_category4%22%3A%22%22%2C%22item_category5%22%3A%22%22%2C%22item_category6%22%3A%22true%2Ftrue%22%2C%22item_category7%22%3A%22%22%2C%22item_category8%22%3A%22true%22%2C%22item_category9%22%3A%22false%22%2C%22item_list_id%22%3A%22%22%2C%22item_list_name%22%3A%22%22%2C%22item_variant%22%3A%22%22%2C%22price%22%3A%22%22%2C%22quantity%22%3A%22%22%7D

.250" Alloy Steel 4140 Precision Ground/Milled Blanks -
Part #: mp-00000243

.250" Alloy Steel 4140 Precision Ground/Milled Blanks -

Part #: mp-00000243

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Dimensions

Thickness: 0.25"
Tolerance: All Dimensions +/- .002˝
Ships In: 2 Business Days

See all available dimensions for this product

Select a Cut Size for Price Select a Cut Size

2.0″ X 11.75″ (2.0 X 11.75 in.) - $92.72 ea.
4.0″ X 11.75″ (4.0 X 11.75 in.) - $141.13 ea.
6.0″ X 5.75″ (6.0 X 5.75 in.) - $122.01 ea.
6.0″ X 11.75″ (6.0 X 11.75 in.) - $210.38 ea.
12.0″ X 11.75″ (12.0 X 11.75 in.) - $340.39 ea.

Save on shipping!

You can select smaller lengths and switch from freight to standard shipping and save!

How does selecting smaller lengths reduce shipping costs?

Reducing your order from an oversize item that requires expensive freight services to a smaller bundle makes it eligible for less expensive (and faster!) standard shipping services.

*Material tolerances will remain +/- 0.125".

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

$92.72 ea.

$92.72 for 1

Buy More & Save up to 9% !

Qty

Price ea.

Savings

[{"min":"2","max":"4","price":"89.94","dqty":"2-4","dprice":"$89.94","dsaving":"2%","isSelected":null},{"min":"5","max":"9","price":"88.08","dqty":"5-9","dprice":"$88.08","dsaving":"5%","isSelected":null},{"min":"10","max":"9999","price":"83.45","dqty":"10+","dprice":"$83.45","dsaving":"9%","isSelected":null}]

2-4

$89.94

5-9

$88.08

10+

$83.45

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1/2" Alloy Steel Plate 4140-Annealed -
Part #: 27513

1/2" Alloy Steel Plate 4140-Annealed-

Part #: 27513

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Dimensions

Thickness: 0.5"
Ships In: 6-8 Buisness Days

See all available dimensions for this product

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

%7B%22item_id%22%3A%22mp-00000305%22%2C%22item_name%22%3A%22.625%5C%22+Alloy+Steel+4140+Precision+Ground%2FMilled+Blanks%22%2C%22item_brand%22%3A%22%22%2C%22item_category%22%3A%22Alloy+Steel%22%2C%22item_category2%22%3A%22Sheet%2FPlate%22%2C%22item_category3%22%3A%224140%22%2C%22item_category4%22%3A%22%22%2C%22item_category5%22%3A%22%22%2C%22item_category6%22%3A%22true%2Ftrue%22%2C%22item_category7%22%3A%22%22%2C%22item_category8%22%3A%22true%22%2C%22item_category9%22%3A%22false%22%2C%22item_list_id%22%3A%22%22%2C%22item_list_name%22%3A%22%22%2C%22item_variant%22%3A%22%22%2C%22price%22%3A%22%22%2C%22quantity%22%3A%22%22%7D

.625" Alloy Steel 4140 Precision Ground/Milled Blanks -
Part #: mp-00000305

.625" Alloy Steel 4140 Precision Ground/Milled Blanks -

Part #: mp-00000305

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Dimensions

Thickness: 0.625"
Tolerance: All Dimensions +/- .002˝
Ships In: 2 Business Days

See all available dimensions for this product

Select a Cut Size for Price Select a Cut Size

2.0″ X 11.75″ (2.0 X 11.75 in.) - $119.81 ea.
4.0″ X 11.75″ (4.0 X 11.75 in.) - $152.74 ea.
6.0″ X 5.75″ (6.0 X 5.75 in.) - $120.09 ea.
6.0″ X 11.75″ (6.0 X 11.75 in.) - $209.18 ea.
12.0″ X 11.75″ (12.0 X 11.75 in.) - $385.27 ea.

Save on shipping!

You can select smaller lengths and switch from freight to standard shipping and save!

How does selecting smaller lengths reduce shipping costs?

Best shipping value:

Single Heat Lot Required

Why are heat lots important?

QTY

$119.81 ea.

$119.81 for 1

Buy More & Save up to 9% !

Qty

Price ea.

Savings

[{"min":"2","max":"4","price":"116.22","dqty":"2-4","dprice":"$116.22","dsaving":"2%","isSelected":null},{"min":"5","max":"9","price":"113.82","dqty":"5-9","dprice":"$113.82","dsaving":"4%","isSelected":null},{"min":"10","max":"9999","price":"107.83","dqty":"10+","dprice":"$107.83","dsaving":"9%","isSelected":null}]

2-4

$116.22

5-9

$113.82

10+

$107.83

Less

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5/8" Alloy Steel Plate 4140-Annealed -
Part #: 9558

5/8" Alloy Steel Plate 4140-Annealed-

Part #: 9558

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Dimensions

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

See all available dimensions for this product

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

3/4" Alloy Steel Plate 4140-Annealed -
Part #: 26921

3/4" Alloy Steel Plate 4140-Annealed-

Part #: 26921

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Dimensions

Thickness: 0.75"
Ships In: 6-8 Buisness Days

See all available dimensions for this product

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

7/8" Alloy Steel Plate 4140-Annealed -
Part #: 23736

7/8" Alloy Steel Plate 4140-Annealed-

Part #: 23736

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Dimensions

Thickness: 0.875"
Ships In: 6-8 Buisness Days

See all available dimensions for this product

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

1" Alloy Steel Plate 4140-Annealed -
Part #: 27510

1" Alloy Steel Plate 4140-Annealed-

Part #: 27510

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Dimensions

Thickness: 1"
Ships In: 6-8 Buisness Days

See all available dimensions for this product

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

%7B%22item_id%22%3A%22mp-00000219%22%2C%22item_name%22%3A%221.000%5C%22+Alloy+Steel+4140+Precision+Ground%2FMilled+Blanks%22%2C%22item_brand%22%3A%22%22%2C%22item_category%22%3A%22Alloy+Steel%22%2C%22item_category2%22%3A%22Sheet%2FPlate%22%2C%22item_category3%22%3A%224140%22%2C%22item_category4%22%3A%22%22%2C%22item_category5%22%3A%22%22%2C%22item_category6%22%3A%22true%2Ftrue%22%2C%22item_category7%22%3A%22%22%2C%22item_category8%22%3A%22true%22%2C%22item_category9%22%3A%22false%22%2C%22item_list_id%22%3A%22%22%2C%22item_list_name%22%3A%22%22%2C%22item_variant%22%3A%22%22%2C%22price%22%3A%22%22%2C%22quantity%22%3A%22%22%7D

1.000" Alloy Steel 4140 Precision Ground/Milled Blanks -
Part #: mp-00000219

1.000" Alloy Steel 4140 Precision Ground/Milled Blanks -

Part #: mp-00000219

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Dimensions

Thickness: 1"
Tolerance: All Dimensions +/- .002˝
Ships In: 2 Business Days

See all available dimensions for this product

Select a Cut Size for Price Select a Cut Size

2.0″ X 11.75″ (2.0 X 11.75 in.) - $70.39 ea.
4.0″ X 11.75″ (4.0 X 11.75 in.) - $113.02 ea.
6.0″ X 5.75″ (6.0 X 5.75 in.) - $181.22 ea.
6.0″ X 11.75″ (6.0 X 11.75 in.) - $337.13 ea.
12.0″ X 11.75″ (12.0 X 11.75 in.) - $628.69 ea.

Save on shipping!

You can select smaller lengths and switch from freight to standard shipping and save!

How does selecting smaller lengths reduce shipping costs?

Best shipping value:

Single Heat Lot Required

Why are heat lots important?

QTY

$70.39 ea.

$70.39 for 1

Buy More & Save up to 10% !

Qty

Price ea.

Savings

[{"min":"2","max":"4","price":"68.28","dqty":"2-4","dprice":"$68.28","dsaving":"2%","isSelected":null},{"min":"5","max":"9","price":"66.87","dqty":"5-9","dprice":"$66.87","dsaving":"5%","isSelected":null},{"min":"10","max":"9999","price":"63.35","dqty":"10+","dprice":"$63.35","dsaving":"10%","isSelected":null}]

2-4

$68.28

5-9

$66.87

10+

$63.35

10%

Less

Sold and shipped by TCI Precision Metals

%7B%22item_id%22%3A%22mp-00000312%22%2C%22item_name%22%3A%22.750%5C%22+Alloy+Steel+4140+Precision+Ground%2FMilled+Blanks%22%2C%22item_brand%22%3A%22%22%2C%22item_category%22%3A%22Alloy+Steel%22%2C%22item_category2%22%3A%22Sheet%2FPlate%22%2C%22item_category3%22%3A%224140%22%2C%22item_category4%22%3A%22%22%2C%22item_category5%22%3A%22%22%2C%22item_category6%22%3A%22true%2Ftrue%22%2C%22item_category7%22%3A%22%22%2C%22item_category8%22%3A%22true%22%2C%22item_category9%22%3A%22false%22%2C%22item_list_id%22%3A%22%22%2C%22item_list_name%22%3A%22%22%2C%22item_variant%22%3A%22%22%2C%22price%22%3A%22%22%2C%22quantity%22%3A%22%22%7D

.750" Alloy Steel 4140 Precision Ground/Milled Blanks -
Part #: mp-00000312

.750" Alloy Steel 4140 Precision Ground/Milled Blanks -

Part #: mp-00000312

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Dimensions

Ships In: 1-3 Days
Thickness: 0.75"
Tolerance: All Dimensions +/- .002˝

See all available dimensions for this product

Select a Cut Size for Price Select a Cut Size

2.0″ X 11.75″ (2.0 X 11.75 in.) - $107.54 ea.
4.0″ X 11.75″ (4.0 X 11.75 in.) - $163.52 ea.
6.0″ X 5.75″ (6.0 X 5.75 in.) - $126.31 ea.
6.0″ X 11.75″ (6.0 X 11.75 in.) - $221.61 ea.
12.0″ X 11.75″ (12.0 X 11.75 in.) - $412.09 ea.

Save on shipping!

You can select smaller lengths and switch from freight to standard shipping and save!

How does selecting smaller lengths reduce shipping costs?

Best shipping value:

Single Heat Lot Required

Why are heat lots important?

QTY

$107.54 ea.

$107.54 for 1

Buy More & Save up to 9% !

Qty

Price ea.

Savings

[{"min":"2","max":"4","price":"104.31","dqty":"2-4","dprice":"$104.31","dsaving":"3%","isSelected":null},{"min":"5","max":"9","price":"102.16","dqty":"5-9","dprice":"$102.16","dsaving":"5%","isSelected":null},{"min":"10","max":"9999","price":"96.79","dqty":"10+","dprice":"$96.79","dsaving":"9%","isSelected":null}]

2-4

$104.31

5-9

$102.16

10+

$96.79

Less

Sold and shipped by TCI Precision Metals

%7B%22item_id%22%3A%22mp-00000328%22%2C%22item_name%22%3A%22.375%5C%22+Alloy+Steel+4140+Precision+Ground%2FMilled+Blanks%22%2C%22item_brand%22%3A%22%22%2C%22item_category%22%3A%22Alloy+Steel%22%2C%22item_category2%22%3A%22Sheet%2FPlate%22%2C%22item_category3%22%3A%224140%22%2C%22item_category4%22%3A%22%22%2C%22item_category5%22%3A%22%22%2C%22item_category6%22%3A%22true%2Ftrue%22%2C%22item_category7%22%3A%22%22%2C%22item_category8%22%3A%22true%22%2C%22item_category9%22%3A%22false%22%2C%22item_list_id%22%3A%22%22%2C%22item_list_name%22%3A%22%22%2C%22item_variant%22%3A%22%22%2C%22price%22%3A%22%22%2C%22quantity%22%3A%22%22%7D

.375" Alloy Steel 4140 Precision Ground/Milled Blanks -
Part #: mp-00000328

.375" Alloy Steel 4140 Precision Ground/Milled Blanks -

Part #: mp-00000328

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Dimensions

Ships In: 1-3 Days
Thickness: 0.375"
Tolerance: All Dimensions +/- .002˝

See all available dimensions for this product

Select a Cut Size for Price Select a Cut Size

2.0″ X 11.75″ (2.0 X 11.75 in.) - $96.76 ea.
4.0″ X 11.75″ (4.0 X 11.75 in.) - $144.19 ea.
6.0″ X 5.75″ (6.0 X 5.75 in.) - $114.68 ea.
6.0″ X 11.75″ (6.0 X 11.75 in.) - $198.35 ea.
12.0″ X 11.75″ (12.0 X 11.75 in.) - $365.88 ea.

Save on shipping!

You can select smaller lengths and switch from freight to standard shipping and save!

How does selecting smaller lengths reduce shipping costs?

Best shipping value:

Single Heat Lot Required

Why are heat lots important?

QTY

$96.76 ea.

$96.76 for 1

Buy More & Save up to 10% !

Qty

Price ea.

Savings

[{"min":"2","max":"4","price":"93.86","dqty":"2-4","dprice":"$93.86","dsaving":"2%","isSelected":null},{"min":"5","max":"9","price":"91.92","dqty":"5-9","dprice":"$91.92","dsaving":"5%","isSelected":null},{"min":"10","max":"9999","price":"87.08","dqty":"10+","dprice":"$87.08","dsaving":"10%","isSelected":null}]

2-4

$93.86

5-9

$91.92

10+

$87.08

10%

Less

Sold and shipped by TCI Precision Metals

%7B%22item_id%22%3A%22mp-00000335%22%2C%22item_name%22%3A%22.500%5C%22+Alloy+Steel+4140+Precision+Ground%2FMilled+Blanks%22%2C%22item_brand%22%3A%22%22%2C%22item_category%22%3A%22Alloy+Steel%22%2C%22item_category2%22%3A%22Sheet%2FPlate%22%2C%22item_category3%22%3A%224140%22%2C%22item_category4%22%3A%22%22%2C%22item_category5%22%3A%22%22%2C%22item_category6%22%3A%22true%2Ftrue%22%2C%22item_category7%22%3A%22%22%2C%22item_category8%22%3A%22true%22%2C%22item_category9%22%3A%22false%22%2C%22item_list_id%22%3A%22%22%2C%22item_list_name%22%3A%22%22%2C%22item_variant%22%3A%22%22%2C%22price%22%3A%22%22%2C%22quantity%22%3A%22%22%7D

.500" Alloy Steel 4140 Precision Ground/Milled Blanks -
Part #: mp-00000335

.500" Alloy Steel 4140 Precision Ground/Milled Blanks -

Part #: mp-00000335

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Dimensions

Ships In: 1-3 Days
Thickness: 0.5"
Tolerance: All Dimensions +/- .002˝

See all available dimensions for this product

Select a Cut Size for Price Select a Cut Size

2.0″ X 11.75″ (2.0 X 11.75 in.) - $90.30 ea.
4.0″ X 11.75″ (4.0 X 11.75 in.) - $141.69 ea.
6.0″ X 5.75″ (6.0 X 5.75 in.) - $113.56 ea.
6.0″ X 11.75″ (6.0 X 11.75 in.) - $196.11 ea.
12.0″ X 11.75″ (12.0 X 11.75 in.) - $358.76 ea.

Save on shipping!

You can select smaller lengths and switch from freight to standard shipping and save!

How does selecting smaller lengths reduce shipping costs?

Best shipping value:

Single Heat Lot Required

Why are heat lots important?

QTY

$90.30 ea.

$90.30 for 1

Buy More & Save up to 10% !

Qty

Price ea.

Savings

[{"min":"2","max":"4","price":"87.59","dqty":"2-4","dprice":"$87.59","dsaving":"3%","isSelected":null},{"min":"5","max":"9","price":"85.79","dqty":"5-9","dprice":"$85.79","dsaving":"4%","isSelected":null},{"min":"10","max":"9999","price":"81.27","dqty":"10+","dprice":"$81.27","dsaving":"10%","isSelected":null}]

2-4

$87.59

5-9

$85.79

10+

$81.27

10%

Less

Sold and shipped by TCI Precision Metals

1 1/8" Alloy Steel Plate 4140-Annealed -
Part #: 27605

1 1/8" Alloy Steel Plate 4140-Annealed-

Part #: 27605

Click for more details

Dimensions

Thickness: 1.125"
Ships In: 6-8 Buisness Days

See all available dimensions for this product

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

1 1/4" Alloy Steel Plate 4140-Annealed -
Part #: 27511

1 1/4" Alloy Steel Plate 4140-Annealed-

Part #: 27511

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Dimensions

Thickness: 1.25"
Ships In: 6-8 Buisness Days

See all available dimensions for this product

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

1 1/2" Alloy Steel Plate 4140-Annealed -
Part #: 27512

1 1/2" Alloy Steel Plate 4140-Annealed-

Part #: 27512

Click for more details

Dimensions

Thickness: 1.5"
Ships In: 6-8 Buisness Days

See all available dimensions for this product

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

2 1/4" Alloy Steel Plate 4140-Annealed -
Part #: 28052

2 1/4" Alloy Steel Plate 4140-Annealed-

Part #: 28052

Click for more details

Dimensions

Thickness: 2.25"
Ships In: 6-8 Buisness Days

See all available dimensions for this product

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

2 1/2" Alloy Steel Plate 4140-Annealed -
Part #: 28859

2 1/2" Alloy Steel Plate 4140-Annealed-

Part #: 28859

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Dimensions

Thickness: 2.5"
Ships In: 6-8 Buisness Days

See all available dimensions for this product

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

4" Alloy Steel Plate 4140-Annealed -
Part #: 26345

4" Alloy Steel Plate 4140-Annealed-

Part #: 26345

Click for more details

Dimensions

Thickness: 4"
Ships In: 6-8 Buisness Days

See all available dimensions for this product

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

2" Alloy Steel Plate 4140-Annealed -
Part #: 27845

2" Alloy Steel Plate 4140-Annealed-

Part #: 27845

Click for more details

Dimensions

Ships In: 6-8 Buisness Days

See all available dimensions for this product

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

%7B%22item_id%22%3A%2227850%22%2C%22item_name%22%3A%221+3%2F4%5C%22+Alloy+Steel+Plate+4140-Annealed+Precision+Ground%22%2C%22item_brand%22%3A%22%22%2C%22item_category%22%3A%22Alloy+Steel%22%2C%22item_category2%22%3A%22Sheet%2FPlate%22%2C%22item_category3%22%3A%224140%22%2C%22item_category4%22%3A%22Annealed%22%2C%22item_category5%22%3A%22Precision+Ground%22%2C%22item_category6%22%3A%22%2F%22%2C%22item_category7%22%3A%22%22%2C%22item_category8%22%3A%22false%22%2C%22item_category9%22%3A%22false%22%2C%22item_list_id%22%3A%22%22%2C%22item_list_name%22%3A%22%22%2C%22item_variant%22%3A%22%22%2C%22price%22%3A%22%22%2C%22quantity%22%3A%22%22%7D