Hot-rolled steel tubes
Standards
EN 10210-1, EN 10216-1 up to -4, EN 10255, EN 10294, EN 10297, EN ISO 3183, ASTM A519, ASTM A106, ASTM A192, ASTM A210, ASTM A213. Other standards on request.
Dimensions
Hollows | ||
| Outside diameter | 17.2 - 133 mm | 0.677 - 5.236'' |
| Wall thickness | 2.0 - 17.5 mm | 0.079 - 0.689'' |
| Length | up to 16 m | up to 52.5 ft |
Finished tubes | ||
| Outside diameter | 17.2 - 88.9 mm | 0.677 - 3.5'' |
| Wall thickness | 2.0 - 8.8 mm | 0.079 - 0.346'' |
| Length | up to 22.5 m | up to 73.9 ft |
| Other dimensions on request | ||
Materials
| Steel grade | Examples |
| Carbon steels & fine-grain structural steels | S235 up to P460NL2 |
| Case-hardening steels | 16MnCr5, 20MnCr5, 20MoCr4, SAE8617H |
| Quench-and-temper steels |
Non-alloyed steels: C35, C45, C50, C60 Alloyed steels: 25CrMo4, 34CrMo4, 42CrMo4 Manganese-boron steels: 22MnB5, 26MnB5, 34MnB5 |
| Special steels |
Air-hardening steels: MW700L, MW1000L Ball bearing steels: 100Cr6 |
| Other materials on request | |
Delivery conditions
| Designation | Symbol | Description |
| As rolled | +AR | After heating to the austenitic range (above the Ac3-temperature), the tubes are formed without a subsequent heat treatment. |
| Soft annealed | +A | The tubes are subjected to annealing slightly below the Ac1-temperature. |
| Normalized rolled | +N | The tubes are rolled in a temperature range that generates the delivery condition +N and is equivalent to the normalized condition. |
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