porducts list
- Motor [1]
- Other Garden Ornaments & Water Features [1]
- Refractory [6]
- Salt [1]
- Skate Board [1]
contact datails
Zhengzhou Jianxin Refractory CO.,LTD.
0371-63162100, 0371-63151076
0371-63162100, 0371-63151076
| Serial number | RN-42 | RN-40 | RN-36 |
| Al2O3% | ≥42 | ≥40 | ≥36 |
| Apparent porosity rate% | ≤24 | ≤24 | ≤26 |
| Cold crushing strengthMPa | ≥29.4 | ≥24.5 | ≥19.6 |
| Refractability℃ | ≥1750 | ≥1730 | ≥1690 |
| Refractoriness under load℃ | ≥1400 | ≥1350 | ≥1300 |
| Permanent Change in dimension on heating%（1450℃×2h） | 0 -0.4 | 0 -0.3 | 0 -0.5 |
| (1350℃×2h) | |||
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