Esche – Oliv
Botanical name Fraxinus excelsior
Other names Olivesche, Gemeine Esche, Hohe Esche
Occurrence Europa
Color & character
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Technical details
Gewicht frisch: 600–800–1 140 kg/m³
Rohdichte lufttrocken (12-15% u): 0,45–0,69–0,86 g/cm³
Druckfestigkeit u12-15: 20–44–68 N/mm²
Biegefestigkeit u12-15: 49–102–178 N/mm²
Elastizitätsmodul (Biegung) u12-15: 4 400–13 400–18 100 N/mm²
Bruchschlagbarkeit: ≈ 60 kJ/m²
Härte (JANKA) ⊥, umgerechnet: 6,7—10,5 kN
Härte (BRINELL) ⊥ zur Faser u12-15: 28—40 N/mm²
Differentielles Schwindmass (radial): 0,17–0,21 %
Differentielles Schwindmass (tangential): 0,27–0,38 %
Trocknungsschwindmaß (radial): ≈ 4,5 %
Trocknungsschwindmaß (tangential): ≈ 7,0 %
pH-Wert: ≈ 5,8
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