4130 Chromoly Tubing Pricing Dynamics
There is no single price for 4130 chromoly tubing. The price of a given order depends on the size, the quantity, the condition and the state of the alloy steel market on the day, which is why suppliers quote against a specific requirement.
Factors That Move the Price
- Size and wall. Tube is priced by weight, but small diameters and thin walls cost more per kilogram because they take more drawing passes to produce.
- Quantity. Larger lots of one size cost less per unit than a few lengths.
- Condition. Extra heat treatment such as normalizing or annealing adds processing cost.
- Tolerance and testing. Tighter tolerances and additional tests add cost.
- Raw materials. Chromium, molybdenum and steel billet prices change, and tube prices follow.
- Cutting and packing. Cut-to-length work and export packing are priced into the order.
Getting a Price You Can Rely On
Ask for a quotation against your actual size list instead of a generic price per kilogram. Published per-unit prices go out of date quickly and rarely match your size and quantity. If you are budgeting, the pages on price per foot and price per kg explain how to convert between the two units using the weight of the tube.
Reading a Price Offer
Look at the unit the price is based on: per kilogram, per metre, per foot or per piece. Check whether weight is theoretical or actual, since tube supplied by weight can vary slightly from the calculated figure. Note whether the quantity is exact or subject to a tolerance, which is common for mill production. See what is included, such as cutting, certification, packing and freight to a named point, and what is charged separately. Two offers can only be compared once they are reduced to the same unit and the same delivery point.
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
Is 4130 tubing priced per foot or per kg?
Either. Mills work by weight; fabricators often think in length. The two are linked by the weight per foot of the size.
Why is thin-wall small tube more expensive per kg?
It needs more cold drawing and intermediate annealing to reach size, so processing cost per kilogram is higher.
How long is a quoted price valid?
The validity period is stated on each quotation. Alloy steel prices move, so offers are time-limited.
Does cutting to length change the price?
Yes. Cutting is priced into the order along with any deburring or special packing.
Request a Quotation Pricing Dynamics
Provide your complete material list (OD, wall, footage) for pricing and delivery options.
- OD & Wall sizes
- Total footage per size
- Delivery location
- MTC requirement