4130 Chromoly Tubing for Custom Requirements
Not every requirement matches a standard size. A custom 4130 chromoly tubing order covers tube made or prepared to your own dimensions, condition or tolerance when stock sizes will not do.
What Can Be Customised
- Dimensions. An OD or wall between standard sizes, within what tube mills can draw.
- Length. Exact cut lengths or specific mill lengths.
- Condition. A particular heat treatment or hardness range.
- Tolerance. Tighter limits on OD, ID or wall than the standard allows.
- Testing. Additional mechanical or non-destructive tests.
Custom dimensions are made by a mill to order, so they involve a minimum quantity and a production lead time. Custom cutting or testing of standard sizes is quicker.
How to Approach a Custom Requirement
First check whether a standard size could be used; a small design change is often cheaper than a special tube. If not, send the drawing or the exact dimensions and tolerances, the quantity, the condition and the application. You will be told whether the requirement is feasible, the minimum quantity and the likely lead time. More detail is on custom sizes and custom dimension tubing.
Examples of Custom Requirements
Typical custom requests include a tube with a bore sized to take a standard bearing, a wall chosen to telescope with another tube, material supplied to a hardness range for a machined part, lengths cut and deburred for an assembly line, and tube with additional ultrasonic testing for a critical component. Some of these need a special production run and others only extra processing of standard tube. Describing the purpose lets the simplest route be found.
Standard Supply Range
| Supply Parameter | Detail |
|---|---|
| Product Form | Seamless (CDS or HFS) |
| Standard | ASTM A519 Grade 4130 |
| OD Range | 0.250" – 5.000" |
| Wall Range | 0.035" – 0.500" |
| Documentation | EN 10204 3.1 MTC included standard |
| Services | Cut-to-length and mixed-size consolidation available |
Frequently Asked Questions
Can 4130 tubing be made in a non-standard OD?
Within the range mills can produce, yes, as a made-to-order item with a minimum quantity.
How long does a custom order take?
Longer than stock supply, because the tube has to be produced. The lead time is confirmed when the enquiry is reviewed.
Is a custom size certified in the same way?
Yes. Made-to-order tube is supplied with its mill test certificate like any other.
Does every custom requirement need a mill run?
No. Many are met by cutting, testing or selecting standard tube. Only non-standard dimensions need production.
What is the first step in a custom enquiry?
Send the drawing or exact dimensions, tolerances, quantity, condition and the application.
Can a standard size be used instead?
Often. A small design change to suit a standard size is usually quicker and cheaper.
Request a Quotation for Custom Requirements
Provide your complete material list (OD, wall, footage) for pricing and delivery options.
- OD & Wall sizes
- Total footage per size
- Delivery location
- MTC requirement