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4130 Round Tube

4130, also known as “Chrome Moly” (short for chromium molybdenum) is a general purpose steel that has been widely used by the motorsports industries for many years.

Weldability, fabrication and mild hardenability make it a popular choice in all forms – tube, bar, sheet and plate.

Condition N Tensile Strength Yield Strength Elongation in 2″ %
(psi) (psi) tube strip
Up to .035 incl. 95,000 75,000 10 5
Over .035 to .188 incl. 95,000 75,000 12 7
Over .188 90,000 70,000 15 10

Note: “Typical Mechanical Properties” listed in this catalog have been compiled from a variety of sources. Information is deemed reliable, but not guaranteed. Data is provided for information only, NOT FOR DESIGN PURPOSES.

We stock a very large inventory of 4130 certified round tubing in a variety of sizes and wall thicknesses. Our large in-stock inventory is affordably priced with quantity discounts available.

Note: .058″ wall tubing will slide over tubing .125″ smaller in diameter. “To slip fit.”

Check out these new tube templates!C

Click Here for Quotes!

Meets AMS-T-6736. Stocked in 17 to 24 foot random lengths; cut pieces available.

Inventory changes from time to time. Occasionally certain sizes become unavailable and other sizes are sometimes added as new stock items.

OD (IN) WALL THICKNESS THEORETICAL ID (IN) WEIGHT/FOOT (LBS)
.250 .035 .180 .0804
.250 .049 .152 .1052
.312 .035 .243 .1039
.312 .049 .215 .1382
.312 .065 .182 .1722
.375 .035 .305 .1271
.375 .049 .277 .1706
.375 .058 .259 .1964
.375 .065 .245 .2152
.437 .035 .367 .1506
.437 .065 .307 .2589
.500 .035 .430 .1738
.500 .049 .402 .2360
.500 .058 .384 .2738
.500 .065 .370 .3020
.500 .095 .310 .4109
.500 .120 .260 .4870
.625 .035 .555 .2205
.625 .049 .527 .3104
.625 .058 .509 .3512
.625 .065 .495 .3888
.625 .083 .459 .4805
.625 .095 .435 .5377
.625 .120 .385 .6472
.625 .156 .312 .7814
.750 .035 .680 .2673
.750 .049 .652 .3668
.750 .058 .643 .4287
.750 .065 .620 .4755
.750 .083 .584 .4109
.750 .095 .560 .6646
.750 .120 .510 .8074
.750 .156 .437 .9897
.750 .188 .375 1.128
.875 .035 .805 .3140
.875 .049 .777 .4323
.875 .058 .759 .5601
.875 .065 .745 .5623
.875 .083 .709 .7021
.875 .120 .635 .9676
.875 .156 .562 1.198
.875 .188 .500 1.379
1.000 .035 .930 .3607
1.000 .049 .902 .4977
1.000 .058 .884 .5835
1.000 .065 .870 .6491
1.000 .083 .834 .8129
1.000 .095 .810 .9182
1.000 .120 .760 1.128
1.000 .156 .687 1.406
1.000 .188 .625 1.630
1.000 .250 .500 2.003
1.125 .049 1.027 .5631
1.125 .058 1.009 .6609
1.125 .065 .995 .7359
1.125 .083 .959 .9237
1.125 .095 .935 1.045
1.125 .120 .885 1.288
1.250 .035 1.180 .4542
1.250 .049 1.152 .6285
1.250 .058 1.134 .7384
1.250 .065 1.120 .8226
1.250 .083 1.084 1.034
1.250 .095 1.060 1.172
1.250 .120 1.010 1.448
1.250 .250 .750 2.670
1.375 .058 1.259 .8158
1.375 .065 1.245 .9094
1.375 .083 1.209 1.145
1.375 .095 1.185 1.299
1.375 .120 1.135 1.608
1.500 .035 1.430 .5476
1.500 .049 1.402 .7593
1.500 .058 1.384 .8932
1.500 .065 1.370 .9962
1.500 .083 1.334 1.256
1.500 .095 1.310 1.426
1.500 .120 1.260 1.769
1.500 .188 1.125 2.634
1.500 .250 1.000 3.338
1.625 .049 1.527 .8248
1.625 .058 1.509 .9707
1.625 .065 1.495 1.083
1.625 .083 1.459 1.367
1.750 .035 1.680 .6411
1.750 .049 1.652 .8902
1.750 .065 1.620 1.170
1.750 .083 1.584 1.478
1.750 .095 1.560 1.679
1.750 .120 1.510 2.089
1.750 .188 1.375 3.136
1.750 .250 1.250 4.005
2.000 .065 1.870 1.343
2.000 .083 1.834 1.699
2.000 .095 1.810 1.933
2.000 .120 1.760 2.409
2.000 .250 1.500 4.673
2.250 .120 2.010 2.730