Every Weld Tested in Line.
The Erie tube mill is registered to ISO 9001 for making structural and mechanical ERW tube, and to IATF 16949, the automotive quality standard. An eddy current tester checks the weld on every foot as it leaves the welder, before the tube is sized and cut.
Certificates.
Registration details as they appear on each certificate.
9001
ISO 9001:2015
Heidtman Tubular Products, LLC, 640 Lavoy Road, Erie, Michigan. Scope: manufacture of structural and mechanical ERW tubular products. Certificate 023874, registered since August 2021.
Download certificate (PDF) IATF16949
IATF 16949:2016
Heidtman Steel Products, Inc. and Heidtman Tubular Products, LLC, 640 Lavoy Road, Erie, Michigan. Certificate 0490657.
Download certificate (PDF)What We Check.
Unless an order says otherwise, tube is made to the ASTM tolerances for the specification ordered.
The Weld
In-line eddy current testing finds weld defects while the tube is still moving. Galvanized tube gets an in-line coating over the weld seam.
The Size
Outside size, wall, corner radius, squareness and twist against A500 or A513, checked on the run.
The Length
Saw-cut ends and lengths held to the length tolerance for the spec, from 20 to 48 foot mill lengths.
Tolerances at a Glance.
The figures below are the ones on our A500 and A513 data sheets. The full tables are on A500 vs. A513 and How to Measure Tube.
| Check | A500Structural | A513Mechanical |
|---|---|---|
| Outside size, square and rectangle | ±.020 to ±.030 in by largest side | ±.008 to ±.020 in by widest side |
| Outside diameter, round | Per A500 | ±.005 to ±.009 in by OD |
| Wall | ±10% of nominal, at the center of the flat | ±10% of nominal (square and rectangle) |
| Straightness | .025 in times the length in feet | 1/16 in in 3 ft (shapes), .030 in in 3 ft (round) |
| Twist in 3 ft | .062 to .087 in | .062 to .087 in |
| Corners | Outside radius no more than 3 times the wall | Per A513 |
| Squareness of sides | 90° ±2° | .006 in per inch across flats |
If Something Is Wrong.
Call us before you use, scrap, return or rework anything you plan to claim. Our claims policy sets out the time limits and what we need to look into it.
Time Limits
- Most claims
- 120 days from shipment
- Rust on hot rolled or pickled dry
- 7 days
- Rust on pickled and oiled
- 30 days
- White rust on galvanized
- 60 days
- Red rust on galvanized
- 180 days
- Wet or damaged on arrival
- Note it on the bill of lading and claim with the carrier
What to Send Us
- Your company name and the bill of lading
- The bundle tag number
- The weight and length you are rejecting, and why
- Where on the tube the defect is, and when you found it
- A sample at least 4 ft long, plus photos or test results