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Home / Metals & Plastics / Steel / 4130 Sheet /4130 Steel Sheets
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4130 Steel Sheets

111 Reviews 7 Answered Questions
From $2.00 to $729.00
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Thickness Size
(in.)		 Part No. Price Buy
.0256 x 12
03-21800
$3.35
Quantity
.0259 x 9
03-21850
$5.45
Quantity
.0259 x 18
03-21900
$8.50
Quantity
.02518 x 18
03-22000
$21.50
Quantity
.02518 x 36
03-22100
$43.50
Quantity
.02518 x 72
03-22150
$86.85
Quantity
.0326 x 12
03-22510
$6.65
Quantity
.0329 x 9
03-22515
$9.50
Quantity
.0329 x 18
03-22520
$18.50
Quantity
.03218 x 18
03-22525
$36.85
Quantity
.03218 x 36
03-22530
$73.75
Quantity
.03218 x 72
03-22535
$146.80
Quantity
.0406 x 12
03-22600
$6.75
Quantity
.0409 x 9
03-22650
$7.55
Quantity
.0409 x 18
03-22700
$11.90
Quantity
.04018 x 18
03-22800
$29.65
Quantity
.04018 x 36
03-22900
$47.60
Quantity
.040 18 x 72
03-22950
$118.75
Quantity
.0408 x 8
03-56302
$4.99
Quantity
.04012 x 12
03-56304
$10.50
Quantity
.04020 x 12
03-56316
$17.50
Quantity
.04026 x 10
03-56312
$18.85
Quantity
.04012 x 24
03-56306
$20.85
Quantity
.04014 x 30
03-56308
$30.55
Quantity
.04018 x 30
03-56310
$39.50
Quantity
.0506 x 12
03-23000
$7.50
Quantity
.0509 x 9
03-23050
$16.90
Quantity
.0509 x 18
03-23100
$26.85
Quantity
.05018 x 18
03-23200
$67.75
Quantity
.05018 x 36
03-23300
$107.75
Quantity
.05018 x 72
03-23350
$267.95
Quantity
.0504 x 24
03-56320
$19.60
Quantity
.05012 x 12
03-56318
$23.80
Quantity
.0508 x 24
03-56322
$31.50
Quantity
.05012 x 24
03-56324
$47.60
Quantity
.0636 x 12
03-23400
$12.60
Quantity
.0639 x 9
03-23450
$16.80
Quantity
.0639 x 18
03-23500
$23.50
Quantity
.06318 x 18
03-23600
$54.75
Quantity
.06318 x 36
03-23700
$105.75
Quantity
.06318 x 72
03-23750
$209.95
Quantity
.06310 x 10
03-56326
$16.60
Quantity
.06310 x 14
03-56332
$17.50
Quantity
.06312 x 12
03-56328
$20.50
Quantity
.06312 x 24
03-56330
$46.50
Quantity
.0716 x 12
03-23800
$12.50
Quantity
.0719 x 9
03-23850
$13.50
Quantity
.0719 x 18
03-23900
$20.80
Quantity
.07118 x 18
03-24000
$41.55
Quantity
.07118 x 36
03-24100
$82.90
Quantity
.07118 x 72
03-24150
$207.95
Quantity
.0714 x 4
03-56334
$2.00
Quantity
.07112 x 12
03-56336
$18.65
Quantity
.07112 x 24
03-56338
$34.50
Quantity
.0806 x 12
03-24200
$12.50
Quantity
.0809 x 9
03-24250
$12.85
Quantity
.0809 x 18
03-24300
$28.50
Quantity
.08018 x 18
03-24400
$41.65
Quantity
.08018 x 36
03-24500
$99.95
Quantity
.08018 x 72
03-24550
$199.90
Quantity
.0802 x 10
03-56354
$4.35
Quantity
.08012 x 24
03-56340
$35.50
Quantity
.0906 x 12
03-24600
$23.60
Quantity
.0909 x 9
03-55500
$19.60
Quantity
.0909 x 18
03-24700
$48.90
Quantity
.09018 x 18
03-24800
$97.75
Quantity
.0908 x 36
03-24900
$154.75
Quantity
.09018 x 72
03-24950
$391.00
Quantity
.0902 x 10
03-56344
$4.99
Quantity
.0906 x 8
03-56342
$23.50
Quantity
.09012 x 24
03-56346
$69.75
Quantity
.1006 x 12
03-25000
$16.50
Quantity
.1009 x 18
03-25100
$36.85
Quantity
.10018 x 18
03-25200
$72.75
Quantity
.10018 x 36
03-25300
$142.95
Quantity
.10018 x 72
03-25350
$288.95
Quantity
.1256 x 12
03-55300
$33.50
Quantity
.1259 x 9
03-25370
$35.50
Quantity
.1259 x 18
03-25400
$76.75
Quantity
.12518 x 18
03-25500
$141.75
Quantity
.12518 x 36
03-25600
$271.95
Quantity
.12518 x 72
03-25650
$544.00
Quantity
.12510 x 24
03-56348
$96.75
Quantity
.12512 x 24
03-56350
$96.75
Quantity
.1909 x 9
03-25660
$48.50
Quantity
.1909 x 18
03-25700
$97.75
Quantity
.19018 x 18
03-25750
$203.95
Quantity
.19018 x 36
03-26025
$393.00
Quantity
.2509 x 9
03-25850
$46.50
Quantity
.2509 x 18
03-25900
$91.75
Quantity
.25018 x 18
03-25950
$182.75
Quantity
.25018 x 36
03-26050
$291.95
Quantity
.25018 x 72
03-00106
$729.00
Quantity
Subtotal $0.00
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Overview

4130 STEEL SHEETS
MIL-S-6345A NORMALIZED
Formerly MIL-S-18729C
This chromium-molybdenum alloy is one of the most widely used aircraft steels because of its combination of weldability, ease of fabrication and mild hardenability. It will respond to heat treatment to high strength levels and yet, in the annealed condition, it has adequate strength for many applications. Used for the manufacture of parts and components.

Tensile strength 75,000-85,000 PSI. Sheared to sheet and strip sizes listed below. Subject to availability of normalized sheet, annealed 4130 sheet may be substituted. Less 10% discount on 6 sheets 18" x 36" or 3 sheets of 18" x 72" per part number.

If Mfg. Test Reports are required, there's a minimum $15.00 charge per order. Please indicate P/N 01-01133 in the Special Instructions Box during the checkout process.
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Reviews

Submit a Review

Well done

Thunder B Verified Purchase

4130 Sheet 12 X 24 X .080
November 14, 2024

ok

Daniel J Verified Purchase

4130 Steel Sheet 6 X 12 X .063
September 26, 2024

Perfect like always

Thorsten S Verified Purchase

4130 Steel Sheet 9 X 9 X .050
September 10, 2024

Excellent

Mike B Verified Purchase

4130 Sheet 6 X 12 X .125
August 23, 2024

Excellent

Mike B Verified Purchase

4130 Steel Sheet 9 X 9 X .125
August 23, 2024

Lj C Verified Purchase

4130 Sheet 6 X 12 X .125
May 30, 2024

Helicopters I Verified Purchase

4130 Steel Sheet 6 X 12 X .050
May 23, 2024

We used this material for formed and welded special Cowl Brackets that worked well.

Cds C Verified Purchase

4130 Steel Sheet 9 X 18 X .063
May 21, 2024

Perfect .040

Gregory B Verified Purchase

4130 Sheet 12 X 12 X .040
May 17, 2024

Good quality steel. Will be used for fuselage repairs for a 1929 biplane.

Mike S Verified Purchase

4130 Sheet 10 X 24 X .125
May 13, 2024

Q&A

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Please note, Aircraft Spruce Canada's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce Canada assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: Does the 0.050 4130 sheet certification include AN-QQ-S-685

It is not listed on the Cert. Test report reads: AMS6345B Normalized or otherwise Heat Treated(Successor to MIL-S-18729) Chemestry to ASTM A505 & A506

Q: Are these 4130 steel sheets domestic material?

Yes, this is domestic material.

Q: Which dimension quoted does the grain direction run on the 4130 steel sheets?

The grain runs the long dimension.

Q: Is this 4130 sheet annealed or normalized?

Annealed.

Q: The description says that Annealed sheet may be substituted for Normalized. Is there any way for me to know up front if Im going to get annealed, or normalized sheet?

Yes, you can use special instructions in the shopping cart to notate that you need annealed.

Q: Does the grain run length wise on P/N 03-19500-6?

Yes, it does.

Q: Is this 4130 sheet made in USA?

Yes it is.

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