Material Characteristics
| spec. weight [γR] |
23 kN/m3 |
| Young´s modulus [ERK] |
28.000 N/mm2 |
| bending tensile strength [σRBZ] |
mind. 16 N/mm2 |
| compressive strength [σD] |
mind. 90 N/mm2 |
| abrasion resistance [αm] |
mind. = 0,5 mm |
| wall roughness [k] |
mind. = 0,1 mm |
| lateral contraction [ν] |
0,37 [1] |
long-term strength under pulsating stress [2xσA]
 evidence: [Lastwechsel]
frequency: [Hz] |
6 N/mm2 2x 107 12 |
Quality requirements acc. to DIN 54815 Part 1 and Part 2:
- material
- dimensions and tolerances
- appearance, form of delivery
- bending tensile strength
- compressive strength
- marking
- water tightness