6.000" 4130 Chromoly Tubing
Six-inch OD is above the diameters normally carried in 4130 tubing. Requirements at this size are treated as a specific enquiry and are usually met with hot finished seamless tube or bored material for machined components.
Where 6.000" OD 4130 Tube Is Used
Tube this large is almost always a blank for machining: large sleeves, bearing housings, rings, heavy rollers and pressure-containing tool bodies. It is rarely used as a welded structural member.
Because the material will be machined, the important dimensions are the finished OD and bore, not the nominal tube size. A supplier can then offer a starting tube with enough stock on both surfaces. Heavy sections cool slowly, so properties through the wall depend on the heat treatment; say whether you need a particular hardness or strength.
Ordering 6.000" OD Tubing
Send the finished dimensions, quantity, length per piece, required condition and any testing such as ultrasonic inspection. Expect a longer lead time than for stock sizes. Related information is on the large diameter tubing and mill sourcing pages.
6.000" OD 4130 Tubing: Wall, Bore and Weight Table
The table lists the bore, metal cross-section and theoretical weight for 6.000" (152.40 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) |
|---|---|---|---|---|---|---|
| 0.083" | 2.11 | 5.834" | 148.18 | 1.543 | 5.25 | 7.81 |
| 0.120" | 3.05 | 5.760" | 146.30 | 2.217 | 7.54 | 11.22 |
| 0.188" | 4.78 | 5.624" | 142.85 | 3.433 | 11.68 | 17.38 |
| 0.250" | 6.35 | 5.500" | 139.70 | 4.516 | 15.37 | 22.87 |
| 0.375" | 9.52 | 5.250" | 133.35 | 6.627 | 22.55 | 33.56 |
| 0.500" | 12.70 | 5.000" | 127.00 | 8.639 | 29.40 | 43.75 |
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
Is 6.000" OD 4130 tubing a stock size?
It is outside the regular range and is handled as a special enquiry. Availability, minimum quantity and lead time are confirmed case by case.
What does 6.000" × 0.500" 4130 tubing weigh?
About 29.40 lb/ft, or 43.75 kg/m, from nominal dimensions.
Is 6.000" tube the same as 6-inch pipe?
No. Six-inch nominal pipe measures 6.625" OD. Tube is specified by actual outside diameter and wall.
What should I send for a 6.000" OD enquiry?
The finished OD, bore and length of the part, the quantity, the condition and any testing required.
Can a large 4130 ring be made from tube?
Yes, if a tube with enough stock is available. Otherwise a forged ring or bored bar may be offered.
Enquire for 6.000" OD 4130 Tubing
Provide your required wall thickness, condition, standard, and footage for a 6.000" OD 4130 quotation.
- OD: 6.000"
- Wall Thickness
- Standard (ASTM A519)
- Condition
- Footage / Quantity
- MTC 3.1 required
- Delivery