As listed
| Field | Value |
|---|---|
| Seller | Aircraft Spruce |
| Material | 4130 chrome-moly, seamless |
| Sizes | 126, from 3/16" to 2-3/4" OD |
| Lengths | 1 to 24 ft |
| Tolerances (per the listing) | Dimensional ±10%; cut length ±1/8" |
| Tensile strength (listed) | 90,000 psi, as stated by Spruce |
| Listing checked | 2026-09-30 |
Taken from Aircraft Spruce's product page on 2026-09-30. Where the listing does not state a figure, this table does not either.
What it is for
Note the stated dimensional tolerance of ±10%. That is Spruce's wording and it is wide; if a wall thickness is critical, ask for test reports, which Spruce supplies for a charge.
For airframe square and rectangular tube see 4130 square tubing.
Sizes listed
| OD (in.) | Wall (in.) | ID (in.) | Weight per ft (lb) | Part No. |
|---|---|---|---|---|
| 3/16 | .035 | 0.118 | 0.039 | 03-00183 |
| 1/4 | .028 | 0.194 | 0.067 | 03-00250 |
| 1/4 | .035 | 0.180 | 0.080 | 03-00300 |
| 1/4 | .049 | 0.152 | 0.105 | 03-00400 |
| 1/4 | .058 | 0.134 | 0.119 | 03-00500 |
| 1/4 | .065 | 0.120 | 0.128 | 03-00510 |
| 5/16 | .035 | 0.243 | 0.104 | 03-00700 |
| 5/16 | .049 | 0.215 | 0.138 | 03-00800 |
| 5/16 | .058 | 0.197 | 0.158 | 03-00810 |
| 5/16 | .065 | 0.183 | 0.172 | 03-00900 |
| 5/16 | .095 | 0.123 | 0.221 | 03-01000 |
| 3/8 | .028 | 0.319 | 0.104 | 03-01100 |
| 3/8 | .035 | 0.305 | 0.127 | 03-01200 |
| 3/8 | .049 | 0.277 | 0.171 | 03-01300 |
| 3/8 | .058 | 0.259 | 0.196 | 03-01400 |
| 3/8 | .065 | 0.245 | 0.215 | 03-01500 |
| 3/8 | .083 | 0.209 | 0.259 | 03-01600 |
| 3/8 | .095 | 0.185 | 0.284 | 03-01610 |
| 7/16 | .028 | 0.382 | 0.123 | 03-00122 |
| 7/16 | .035 | 0.368 | 0.151 | 03-01700 |
| 7/16 | .049 | 0.340 | 0.204 | 03-01800 |
| 7/16 | .058 | 0.322 | 0.236 | 03-00067 |
| 7/16 | .065 | 0.308 | 0.259 | 03-02000 |
| 7/16 | .095 | 0.248 | 0.348 | 03-02100 |
| 7/16 | .120 | 0.198 | 0.408 | 03-02200 |
| 1/2 | .028 | 0.444 | 0.141 | 03-02300 |
| 1/2 | .035 | 0.430 | 0.174 | 03-02400 |
| 1/2 | .049 | 0.402 | 0.236 | 03-02500 |
| 1/2 | .058 | 0.384 | 0.274 | 03-02600 |
| 1/2 | .065 | 0.370 | 0.302 | 03-02700 |
| 1/2 | .083 | 0.334 | 0.370 | 03-02710 |
| 1/2 | .095 | 0.310 | 0..411 | 03-02800 |
| 1/2 | .120 | 0.260 | 0.487 | 03-02900 |
| 9/16 | .035 | 0.493 | 0.197 | 03-03000 |
| 9/16 | .065 | 0.433 | 0.346 | 03-03200 |
| 9/16 | .120 | 0.323 | 0.568 | 03-03400 |
| 5/8 | .028 | 0.569 | 0.179 | 03-03500 |
| 5/8 | .035 | 0.555 | 0.221 | 03-03600 |
| 5/8 | .049 | 0.527 | 0.301 | 03-03700 |
| 5/8 | .058 | 0.509 | .351 | 03-03800 |
| 5/8 | .065 | 0.495 | 0.389 | 03-03900 |
| 5/8 | .095 | 0.435 | 0.538 | 03-04000 |
| 5/8 | .120 | 0.385 | 0.647 | 03-04100 |
| 5/8 | .156 | 0.313 | 0.781 | 03-04110 |
| 3/4 | .028 | 0.694 | 0.216 | 03-04250 |
| 3/4 | .035 | 0.680 | 0.267 | 03-04300 |
| 3/4 | .049 | 0.652 | 0.367 | 03-04400 |
| 3/4 | .058 | 0.634 | 0.429 | 03-04500 |
| 3/4 | .065 | 0.620 | 0.476 | 03-04600 |
| 3/4 | .095 | 0.560 | 0.665 | 03-04700 |
| 3/4 | .120 | 0.510 | 0.807 | 03-04800 |
| 3/4 | .156 | 0.438 | 0.990 | 03-04900 |
| 3/4 | .188 | 0.374 | 1.128 | 03-05000 |
| 7/8 | .035 | 0.805 | 0.314 | 03-05300 |
| 7/8 | .049 | 0.777 | 0.432 | 03-05400 |
| 7/8 | .058 | 0.759 | 0.506 | 03-05500 |
| 7/8 | .065 | 0.745 | 0.562 | 03-05600 |
| 7/8 | .083 | 0.709 | 0.702 | 03-05700 |
| 7/8 | .095 | 0.685 | 0.791 | 03-05800 |
| 7/8 | .120 | 0.635 | 0.968 | 03-05900 |
| 7/8 | .188 | 0.499 | 1.379 | 03-06000 |
| 1 | .028 | 0.944 | 0.291 | 03-06110 |
| 1 | .035 | 0.930 | 0.361 | 03-06100 |
| 1 | .049 | 0.902 | 0.498 | 03-06200 |
| 1 | .058 | 0.884 | 0.584 | 03-06300 |
| 1 | .065 | 0.870 | 0.649 | 03-06400 |
| 1 | .083 | .834 | 1.000 | 03-06450 |
| 1 | .095 | 0.810 | 0.918 | 03-06500 |
| 1 | .120 | 0.760 | 1.128 | 03-06600 |
| 1 | .156 | 0.688 | 1.406 | 03-06700 |
| 1 | .188 | 0.624 | 1.630 | 03-06800 |
| 1-1/8 | .035 | 1.055 | 0.407 | 03-06900 |
| 1-1/8 | .049 | 1.027 | 0.563 | 03-07000 |
| 1-1/8 | .058 | 1.009 | 0.661 | 03-07100 |
| 1-1/8 | .065 | 0.995 | 0.736 | 03-07200 |
| 1-1/8 | .095 | .0935 | 1.045 | 03-07300 |
| 1-1/8 | .120 | 0.885 | 1.288 | 03-07400 |
| 1-1/8 | .188 | -- | -- | 03-00263 |
| 1-1/4 | .035 | 1.180 | 0.454 | 03-07500 |
| 1-1/4 | .049 | 1.152 | 0.638 | 03-07600 |
| 1-1/4 | .058 | 1.134 | 0.738 | 03-07700 |
| 1-1/4 | .065 | 1.120 | 0.823 | 03-07800 |
| 1-1/4 | .083 | 1.084 | 1.132 | 03-07810 |
| 1-1/4 | .095 | 1.060 | 1.172 | 03-07900 |
| 1-1/4 | .120 | 1.010 | 1.448 | 03-08000 |
| 1-1/4 | .156 | 0.938 | 1.823 | 03-08100 |
| 1-3/8 | .035 | 1.305 | 0.501 | 03-08210 |
| 1-3/8 | .049 | 1.277 | 0.694 | 03-08200 |
| 1-3/8 | .058 | 1.259 | 0.816 | 03-08300 |
| 1-3/8 | .065 | 1.245 | 0.909 | 03-08400 |
| 1-3/8 | .095 | 1.185 | 1.299 | 03-08500 |
| 1-3/8 | .120 | 1.135 | 1.609 | 03-08600 |
| 1-3/8 | .188 | 0.999 | 2.383 | 03-08700 |
| 1-1/2 | .035 | 1.430 | 0.548 | 03-08800 |
| 1-1/2 | .049 | 1.402 | 0.759 | 03-08900 |
| 1-1/2 | .058 | 1.384 | 0.893 | 03-09000 |
| 1-1/2 | .065 | 1.370 | 0.996 | 03-09100 |
| 1-1/2 | .083 | 1.334 | 1.256 | 03-09110 |
| 1-1/2 | .095 | 1.310 | 1.426 | 03-09200 |
| 1-1/2 | .120 | 1.260 | 1.769 | 03-09300 |
| 1-1/2 | .188 | 1.124 | 2.634 | 03-09400 |
| 1-5/8 | .049 | 1.527 | 0.825 | 03-09500 |
| 1-5/8 | .058 | 1.509 | 0.971 | 03-09600 |
| 1-5/8 | .065 | 1.495 | 1.083 | 03-09700 |
| 1-5/8 | .083 | 1.459 | 1.10 | 03-00042 |
| 1-5/8 | .095 | 1.435 | 1.552 | 03-09800 |
| 1-5/8 | .120 | 1.385 | 1.929 | 03-09900 |
| 1-5/8 | .156 | 1.313 | 2.447 | 03-10000 |
| 1-5/8 | .188 | 1.249 | 2.885 | 03-10100 |
| 1-3/4 | .049 | 1.652 | 0.890 | 03-10200 |
| 1-3/4 | .058 | 1.634 | 1.048 | 03-10210 |
| 1-3/4 | .065 | 1.620 | 1.170 | 03-10300 |
| 1-3/4 | .095 | 1.560 | 1.679 | 03-10400 |
| 1-3/4 | .120 | 1.510 | 2.089 | 03-10500 |
| 1-3/4 | .188 | 1.374 | 3.136 | 03-10510 |
| 1-7/8 | .250 | 1.375 | 2.249 | 03-10600 |
| 2 | .049 | 1.902 | 1.021 | 03-10710 |
| 2 | .065 | 1.870 | 1.343 | 03-10800 |
| 2 | .095 | 1.810 | 1.933 | 03-10900 |
| 2 | .120 | 1.760 | 2.409 | 03-11000 |
| 2 | .188 | 1.625 | 3.638 | 03-00193 |
| 2-1/4 | .120 | 2.010 | 2.730 | 03-11100 |
| 2-1/2 | .095 | 2.31 | 2.44 | 03-11150 |
| 2-1/2 | .120 | 2.260 | 3.05 | 03-11200 |
| 2-1/2 | .250 | 2.000 | 6.008 | 03-11206 |
| 2-3/4 | .125 | 2.500 | 3.370 | 03-11210 |
As listed by Aircraft Spruce on 2026-09-30. Check the live listing before ordering: stock and part numbers change.
Where to buy
The link opens Aircraft Spruce's own page for this item, so the price and stock you see are theirs and current. We do not copy prices.
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Sources
- Aircraft Spruce — 4130 Alloy Steel Round Seamless — product listing, checked 2026-09-30.
Educational reference only. not approved data. Always consult the applicable SRM, AMM, or AC 43.13-1B and your certifying authority.