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Walnut, American Black
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Walnut, American Black
Botanical Name: Juglans nigra L
Common Name(s): Black Walnut
Origin: North America
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| General: |
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| Seasoning: |
Dries slowly with a tendency to honeycomb. |
| Working: |
The timber is moderately hard, tough and strong, however, it is easily worked. It finishes well and takes an excellent stain and polish. |
| Uses: |
Furniture, cabinets, gun stocks, musical instruments and decorative veneer. |
| Availability |
| Grade: |
Prime
A North American grade for a board to provide 83.3% (10/12ths) clear cuttings of either 3" x 7' or 4" x 5'. This means that defects such as knots, splits and wane are permitted, but in small quantities. Suitable for furniture and joinery. |
| Stocked: |
Yes |
| Price: |
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| Availability: |
Stocked in Random Width 25mm and 50mm thick boards.
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| Supply - Resource Certification |
| Primary Supplier(s): |
Cole Hardwoods, Baillie Lumber |
| Durability - Durability |
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Durability (In Ground)
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| Durability (Above Ground): |
Moderately Durable |
| Density |
| Density Air Dried | 660 kg/m² |
| Shrinkage |
| Shrinkage | % (Green to 12% MC) |
| Stability |
| Stability | |
| Mechanical Properties |
| Mechanical Links |
Janka Hardness:
(Average) |
4.5 kN |
| Modulus of Rupture / Bending Strength: |
101 MPa (N/mm² or MN/m²) |
| Modulus of Elasticity / Stiffness: |
12 GPa (GN/m²) |
| Maximum Crushing Strength: |
52 MPa (N/mm² or MN/m²) |
| Moisture Meter Reading Corrections |
| Moisture Meter Reading Corrections: | |
| Fire Indicies |
Ignitability Index:
(NZ/AS 1530.3) | |
Flame Spread Index:
(NZ/AS 1530.3) | |
Heat Evolved Index:
(NZ/AS 1530.3) | |
Smoke Developed Index:
(NZ/AS 1530.3) | |
Flame Spread Index:
(ASTM E84) |
130 - 140 |
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