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4130 Steel Sheets

From $2.45 to $715.00
Thickness Size
(in.)
Part No. Price Buy
.0256 x 12
03-21800
$2.98
Quantity
.0259 x 9
03-21850
$5.40
Quantity
.0259 x 18
03-21900
$9.90
Quantity
.02518 x 18
03-22000
$21.50
Quantity
.02518 x 36
03-22100
$42.55
Quantity
.02518 x 72
03-22150
$85.75
Quantity
.0326 x 12
03-22510
$8.50
Quantity
.0329 x 9
03-22515
$9.50
Quantity
.0329 x 18
03-22520
$18.50
Quantity
.03218 x 18
03-22525
$36.50
Quantity
.03218 x 36
03-22530
$71.99
Quantity
.03218 x 72
03-22535
$143.85
Quantity
.0406 x 12
03-22600
$6.60
Quantity
.0409 x 9
03-22650
$7.50
Quantity
.0409 x 18
03-22700
$14.55
Quantity
.04018 x 18
03-22800
$29.50
Quantity
.04018 x 36
03-22900
$58.75
Quantity
.040 18 x 72
03-22950
$116.75
Quantity
.0408 x 8
03-56302
$6.50
Quantity
.04012 x 12
03-56304
$12.95
Quantity
.04020 x 12
03-56316
$21.65
Quantity
.04026 x 10
03-56312
$23.50
Quantity
.04012 x 24
03-56306
$25.90
Quantity
.04014 x 30
03-56308
$37.95
Quantity
.04018 x 30
03-56310
$49.50
Quantity
.0506 x 12
03-23000
$7.50
Quantity
.0509 x 9
03-23050
$16.60
Quantity
.0509 x 18
03-23100
$32.85
Quantity
.05018 x 18
03-23200
$65.75
Quantity
.05018 x 36
03-23300
$131.75
Quantity
.05018 x 72
03-23350
$262.95
Quantity
.0504 x 24
03-56320
$19.50
Quantity
.05012 x 12
03-56318
$29.50
Quantity
.0508 x 24
03-56322
$38.85
Quantity
.05012 x 24
03-56324
$58.75
Quantity
.0636 x 12
03-23400
$12.50
Quantity
.0639 x 9
03-23450
$16.50
Quantity
.0639 x 18
03-23500
$28.80
Quantity
.06318 x 18
03-23600
$53.75
Quantity
.06318 x 36
03-23700
$103.75
Quantity
.06318 x 72
03-23750
$204.95
Quantity
.06310 x 10
03-56326
$16.50
Quantity
.06310 x 14
03-56332
$21.50
Quantity
.06312 x 12
03-56328
$24.99
Quantity
.06312 x 24
03-56330
$45.50
Quantity
.0716 x 12
03-23800
$12.50
Quantity
.0719 x 9
03-23850
$12.90
Quantity
.0719 x 18
03-23900
$25.50
Quantity
.07118 x 18
03-24000
$50.90
Quantity
.07118 x 36
03-24100
$101.75
Quantity
.07118 x 72
03-24150
$203.95
Quantity
.0714 x 4
03-56334
$2.45
Quantity
.07112 x 12
03-56336
$23.50
Quantity
.07112 x 24
03-56338
$34.50
Quantity
.0806 x 12
03-24200
$12.50
Quantity
.0809 x 9
03-24250
$15.75
Quantity
.0809 x 18
03-24300
$27.50
Quantity
.08018 x 18
03-24400
$50.99
Quantity
.08018 x 36
03-24500
$97.99
Quantity
.08018 x 72
03-24550
$195.95
Quantity
.0802 x 10
03-56354
$3.95
Quantity
.08012 x 24
03-56340
$43.50
Quantity
.0906 x 12
03-24600
$23.50
Quantity
.0909 x 9
03-55500
$23.99
Quantity
.0909 x 18
03-24700
$47.95
Quantity
.09018 x 18
03-24800
$95.75
Quantity
.0908 x 36
03-24900
$191.95
Quantity
.09018 x 72
03-24950
$383.00
Quantity
.0902 x 10
03-56344
$6.50
Quantity
.0906 x 8
03-56342
$28.70
Quantity
.09012 x 24
03-56346
$85.75
Quantity
.1006 x 12
03-25000
$15.95
Quantity
.1009 x 18
03-25100
$36.50
Quantity
.10018 x 18
03-25200
$71.75
Quantity
.10018 x 36
03-25300
$141.99
Quantity
.10018 x 72
03-25350
$282.95
Quantity
.1256 x 12
03-55300
$32.50
Quantity
.1259 x 9
03-25370
$43.50
Quantity
.1259 x 18
03-25400
$74.95
Quantity
.12518 x 18
03-25500
$138.75
Quantity
.12518 x 36
03-25600
$266.95
Quantity
.12518 x 72
03-25650
$533.00
Quantity
.12510 x 24
03-56348
$95.95
Quantity
.12512 x 24
03-56350
$117.95
Quantity
.1909 x 9
03-25660
$47.85
Quantity
.1909 x 18
03-25700
$95.75
Quantity
.19018 x 18
03-25750
$199.75
Quantity
.19018 x 36
03-26025
$385.00
Quantity
.2509 x 9
03-25850
$45.50
Quantity
.2509 x 18
03-25900
$89.75
Quantity
.25018 x 18
03-25950
$178.99
Quantity
.25018 x 36
03-26050
$357.00
Quantity
.25018 x 72
03-00106
$715.00
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.

  • Frequently Purchased With
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Reviews

Great people to work with- Thanks

Joe W Verified Purchase

4130 STEEL SHEET 6 X 12 X .080

March 6, 2024

Received the product in good condition in a timely fashion.

Michael G Verified Purchase

4130 STEEL SHEET 9 X 18 X .100

February 20, 2024

Pretty much a commodity, what differentiates one seller from another is service and price. I was going to buy from McMaster-Carr, which also offers outstanding service. Their price for this item was a little over $14. Aircraft Spruce sold it for less than $2. Both businesses give excellent customer service. Check with Aircraft Spruce first.

Mike C Verified Purchase

4130 STEEL SHEET 6 X 12 X .025

February 17, 2024

Small steel sheet for brackets worked fine. Shipping not so bad.

Daniel J Verified Purchase

4130 STEEL SHEET 9 X 18 X .063

February 10, 2024

Good product had to wait on order several weeks as other items were back ordered. The other item was aircraft fabric, medium white.

Kasey E Verified Purchase

4130 STEEL SHEET 18X18X.071

January 25, 2024

Jeremy D Verified Purchase

4130 SHEET 6" X 12" X .125"

January 11, 2024

Very Good

Bob H Verified Purchase

4130 STEEL SHEET 6 X 12 X .040

December 27, 2023

Very Good

Bob H Verified Purchase

4130 STEEL SHEET 6 X 12 X .063

December 27, 2023

Very Good

Bob H Verified Purchase

4130 SHEET 6" X 12" X .125"

December 27, 2023

GOOD MATERIAL & SEVICE.

Dave W Verified Purchase

4130 SHEET 18"X 36" X .071

December 23, 2023

Q&A

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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