2.500" 4130 Chromoly Tubing
2.500" OD 4130 tubing is mainly an engineering size. It is used for torque tubes and driveline components, axle and housing tubes, rollers and parts machined from heavy-wall tube.
Where 2.500" OD 4130 Tube Is Used
A tube of this diameter resists twisting very efficiently, which is why thin-wall 2.500" sections are used for torque-carrying members. Heavier walls supply blanks for hydraulic cylinder components, collars and sleeves where 4130 is chosen for its strength after heat treatment.
For rotating parts, straightness and wall uniformity matter as much as the nominal size. Say how the tube will be used so that the tolerance class and condition can be matched to it.
Ordering 2.500" OD Tubing
Specify OD, wall, condition, standard and length. If the part will be quenched and tempered after machining, order annealed or normalized stock and leave the final heat treatment to your own process; see quenched and tempered 4130 tubing. Heavy walls are covered on the heavy wall tubing page.
2.500" OD 4130 Tubing: Wall, Bore and Weight Table
The table lists the bore, metal cross-section and theoretical weight for 2.500" (63.50 mm) outside diameter across the walls normally requested in cold drawn seamless 4130.
| Wall (in) | Wall (mm) | ID (in) | ID (mm) | Section area (in²) | Weight (lb/ft) | Weight (kg/m) |
|---|---|---|---|---|---|---|
| 0.049" | 1.24 | 2.402" | 61.01 | 0.377 | 1.28 | 1.91 |
| 0.065" | 1.65 | 2.370" | 60.20 | 0.497 | 1.69 | 2.52 |
| 0.083" | 2.11 | 2.334" | 59.28 | 0.630 | 2.14 | 3.19 |
| 0.095" | 2.41 | 2.310" | 58.67 | 0.718 | 2.44 | 3.63 |
| 0.120" | 3.05 | 2.260" | 57.40 | 0.897 | 3.05 | 4.54 |
| 0.156" | 3.96 | 2.188" | 55.58 | 1.149 | 3.91 | 5.82 |
| 0.188" | 4.78 | 2.124" | 53.95 | 1.366 | 4.65 | 6.91 |
| 0.250" | 6.35 | 2.000" | 50.80 | 1.767 | 6.01 | 8.95 |
| 0.375" | 9.52 | 1.750" | 44.45 | 2.503 | 8.52 | 12.68 |
Values are calculated from nominal dimensions (weight = (OD − wall) × wall × 10.69). A row in this table is a dimensional reference, not a statement that the size is held in stock; confirm availability when you enquire.
Frequently Asked Questions
What does 2.500" × 0.120" 4130 tubing weigh?
About 3.05 lb/ft, or 4.54 kg/m, from nominal dimensions.
Is 2.500" OD available in heavy walls?
Walls up to 0.375" are listed in the table above as a dimensional reference. Heavier walls are usually hot finished. Confirm the exact combination when you enquire.
What is the bore of 2.500" × 0.250" tubing?
The nominal inside diameter is 2.000".
Is 2.500" tube the same as 2-1/2" pipe?
No. 2-1/2" nominal pipe measures 2.875" OD. Tube is ordered by actual outside diameter.
Can 2.500" OD 4130 tube be bent?
Yes, with a machine of suitable capacity and a generous radius. Thin walls at this diameter need internal support.
Enquire for 2.500" OD 4130 Tubing
Provide your required wall thickness, condition, standard, and footage for a 2.500" OD 4130 quotation.
- OD: 2.500"
- Wall Thickness
- Standard (ASTM A519)
- Condition
- Footage / Quantity
- MTC 3.1 required
- Delivery