Exact Straight Lengths (ESL)- Tubes which have been mechanically straightened and then cut to specific lengths as specified by the customer. They are produced within the following dimensional ranges:
- Min. Diameter: 1/4″
- Max. Diameter: 1-1/8′
- Min. Length: 11 3/32″
- Max. Length: 28′
| Temper | Weight | Specifications |
| H58 ( Drawn ) | In bundles of 1000 lbs | ASTM B68, B75, B743 |
| 050 ( LA ) Light Anneal | 500 to 1000 lb. boxes | |
| 060 ( Soft Anneal ) | ||
| Light anneal rotary straightened |
Mechanical Properties
| Temper | Tensile Strength | Yield Strength | Elongation | Grain Size | Rockwell Hardness |
| 050 ( LA ) Light Anneal | 30 ksi Min. | 9 ksi Min. | 40% Min. | .010-.040 mm | 65 Max (15T) |
| 060 ( Soft Anneal ) | 30 ksi Min. | 9 ksi Min. | 40% Min. | .040-.080 mm | 60 Max (15T) |
| H58 ( Drawn ) | 36 ksi Min. | 30 ksi Min. | N/A | N/A | 80 Max (15T) |
Range of Sizes
| Outside Diameter | Wall Thickness | ||
| Inches | Inches | ||
| Min. | Max. | ||
| 0.250 | 0.020 | 0.045 | |
| 0.3125 | 0.011 | 0.055 | |
| 0.3750 | 0.011 | 0.065 | |
| 0.5000 | 0.015 | 0.065 | |
| 0.6250 | 0.016 | 0.065 | |
| 0.7500 | 0.017 | 0.065 | |
| 0.8750 | 0.018 | 0.065 | |
| 1.0000 | 0.025 | 0.065 | |
| 1.1250 | 0.028 | 0.050 | |
Exact Straight Lengths – Light Anneal Rotary (LAR)
Light Anneal Rotary (LAR)- This is the exact straight lengths that are ran through the rotary straightener.
| Examples of Current Sizes we produce | |
| Outside Diameter | Wall Thickness |
| 0.250 | 0.035 |
| 0.375 | 0.022 |
| 0.610 | 0.020 |
| 0.750 | 0.019 |
| 0.850 | .020 – .032 |
| 1.095 | 0.024 |
The above sizes are examples. Only we can produce OD sizes that vary from .250 – 1.095 with various wall sizes. Please contact Cerro to inquire about different size options.
Cleanliness- Lengths are capped with plastic caps when specified by the customer.
Tolerances- Exact straight lengths are produced to the dimensional tolerances specified in ASTM B251. Closer tolerances may be available provided a prior agreement between Cerro and the customer.
Box weights and packaging– Exact straight lengths are provided in 500 or 1,000 lb. bare bundles or with a protective wrapping or wooden boxes lined with plastic.
Testing- All exact straight lengths are eddy current tested in accordance with ASTM E243. Exact straight lengths are provided with no detectable defects.