4130 Chromoly Tubing Export to USA
The United States is the home market for 4130: the grade, the inch sizes and the ASTM standard all originate there. Tube exported to American buyers is therefore supplied in the dimensions and to the specification they already use.
What US Buyers Should Check
Imported tube suits commercial fabrication, motorsport and general engineering. Some contracts, however, require steel melted and manufactured domestically, for example certain defence and government-funded work. Confirm any country-of-origin clause in your contract before ordering imported material.
For aircraft structures, the specification is usually AMS-T-6736 or MIL-T-6736 instead of commercial ASTM A519. State the exact specification your project requires; do not assume one covers the other. Background is on 4130 aircraft tubing.
Shipping to the USA
Orders travel by sea freight to the port you nominate, with air freight available for small urgent lots. Give the delivery term you want quoted and the destination port or address. Documents include the invoice, packing list, bill of lading and mill test certificates. Import duties and any trade measures in force are the importer's responsibility, so check the current position with your customs broker. See also chromoly tubing for US buyers.
Typical US Uses for Imported 4130
American buyers of imported 4130 tubing include chassis and roll cage shops, off-road and rock-crawler builders, trailer and equipment fabricators, and machine shops that turn parts from heavy-wall tube. These are commercial applications where ASTM A519 with a mill test certificate is the normal requirement. Builders of experimental aircraft should follow the material list for their design, which usually calls for an aircraft specification. For certified chassis, check that the material and documentation satisfy the chassis specification you are building to.
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 exported tubing supplied in inch sizes?
Yes. 4130 to ASTM A519 is produced in inch ODs and walls, the same dimensions used by US fabricators.
Can imported 4130 be used on any US project?
Not where the contract requires domestic material. Check for country-of-origin requirements first.
Who handles import duty?
The importer. Ask your customs broker about the duty and any measures that currently apply to steel tube.
Are certificates written in English?
Yes. Mill test certificates and shipping documents are issued in English.
Can material meet a chassis certification specification?
State the specification. Tube is supplied to ASTM A519 Grade 4130; confirm this satisfies the specification you build to.
Should I use sea or air freight?
Sea freight suits most orders by weight. Air freight is practical only for small, urgent lots.
Request a Quotation Export to USA
Provide your complete material list (OD, wall, footage) for pricing and delivery options.
- OD & Wall sizes
- Total footage per size
- Delivery location
- MTC requirement