Variants
Ovako 250R is a quench and tempering steel that is used for large chains.
· Weldable using normal chain welding methods
· Available as bar in as rolled condition
* Designation followed by "*" is not an official EN standard grade but named according to the rules in EN 10027.
| Micro inclusions - steel grade 250R | Macro inclusions - 250R | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Applied standard | ASTM E45 | Applied standard |
ISO 3763 (Blue fracture) |
||||||||
| Sampling | ASTM A295 | Sampling | Statistical testing on billets | ||||||||
|
Maximum average limits |
A | B | C | D | Limits | < 5 mm/dm2 | |||||
| Th | He | Th | He | Th | He | Th | He | ||||
| 2.5 | 1.5 | 1.0 | 0.5 | 0 | 0 | 0.5 | 0.5 | ||||
| Youngs module (GPa) | Poisson´s ratio (-) | Shear module (GPa) | Density (kg/m3) |
|---|---|---|---|
| 210 | 0.3 | 80 | 7800 |
| Average CTE 20-300°C (µm/m°K) | Specific heat capacity 50/100°C (J/kg°K) | Thermal conductivity Ambient temperature (W/m°K) | Electrical resistivityAmbient temperature (µΩm) |
| 12 | 460 - 480 | 40 - 45 | 0.20 - 0.25 |
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Via telephone: +46 8 622 1300
For more detailed information please visit http://www.ovako.com/en/Contact-Ovako/
Disclaimer
The information in this document is for illustrative purposes only. The data and examples are only general recommendations and not a warranty or a guarantee. The suitability of a product for a specific application can be confirmed only by Ovako once given the actual conditions.The purchaser of an Ovako product has the responsibility to ascertain and control the applicability of the products before using them. Continuous development may necessitate changes in technical data without notice. This document is only valid for Ovako material. Other material, covering the same international specifications, does not necessarily comply with the properties presented in this document.
