Variants
20Cr2* is a carburizing steel with good toughness and high fatigue strength. Equivalent to the US Standard grade 4118.
126H is a Bearing Steel Quality (BQ) variant.
* Designation followed by "*" is not an official EN standard grade but named according to the rules in EN 10027.
BQ-Steel®
BQ-Steel® is a bearing quality clean steel optimized for fatigue strength and is also ideal for new design solutions outside the bearing industry.
4118H
| Micro inclusions | Macro inclusions | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | < 2,5 mm/dm2 | |||||
| Th | He | Th | He | Th | He | Th | He | ||||
| 2,0 | 1,5 | 0,8 | 0,1 | 0 | 0 | 0,5 | 0,4 | ||||
| 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 |
Would you like to know more about our offers? Don´t hesitate to contact us:
Via e-mail: info@ovako.com
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.
