Para-angelim
Hymenolobium excelsum
Para-angelim measures 1,720 lbf on the Janka scale, 33% harder than northern red oak.
- Drying leaves its hardness unchanged: the handbook gives the same figure green and at 12% moisture.
- Piquia has exactly the same Janka figure.
- Across all 155 woods it falls in the top fifth for hardness and bending strength and in the bottom fifth for volumetric shrinkage.
U.S. hardwoodsU.S. softwoodsImported woodsNorthern red oak
Six measures
Para-angelimImported woods medianOther woods
Janka hardness
1,720 lbf7,651 N28th hardest of 15524th of 65 imported woods; 32% above the imported woods median240 lbf3,680 lbfBending strength
17,600 psi121.3 MPa31st strongest of 1554,300 psi29,900 psiDensity
0.6334th heaviest of 1550.250.96Stiffness
2.05 M psi14.1 GPa34th stiffest of 1550.54 M psi4.06 M psiCupping tendency
1.6145th lowest of 1551.092.90Shrinkage across the face
7.1%radial 4.4%48th lowest of 1553.5%12.7%
How much it moves
Both its face shrinkage (7.1%) and its T/R ratio (1.61) sit in the middle half of the list.
0.43 in.
off a 6-inch flatsawn board, green to oven-dry; quartersawn 0.26 in.
- Tangential
- 7.1%
- Radial
- 4.4%
- Volume
- 10.2%
- T/R ratio
- 1.61 (45th most stable of 155)
End view, shrinkage drawn 3× life size.
Closest substitutes
- Black locust
1% softer · 5% heavier · shrinks 0.1 points more across the face
- Opepe
5% softer · same density · shrinks 1.3 points more across the face
- Sepetir
18% softer · 11% lighter · shrinks 0.1 points less across the face
Woods of similar hardness
The eight nearest on the Janka scale, lbf.
Laboratory values
| Property | Green | Dry, 12% MC | Change when dried | Metric, 12% MC |
|---|---|---|---|---|
| Side hardness | 1,720lbf | 1,720lbf | ±0% | 7,651N |
| Modulus of rupture | 14,600psi | 17,600psi | +21% | 121.3MPa |
| Compression parallel to grain | 7,460psi | 8,990psi | +21% | 62MPa |
| Modulus of elasticity | 1.95M psi | 2.05M psi | +5% | 14.1GPa |
| Work to maximum load | 12.8in-lbf/in³ | 15.9in-lbf/in³ | +24% | 109.6kJ/m³ |
| Shear parallel to grain | 1,600psi | 2,010psi | +26% | 13.9MPa |
Wood Handbook Table 5-5b, Table 4-4. Data & method · Guides