Juglans nigra
Amerikanischer Nussbaum
American Black Walnut is the chocolate-brown hardwood that built mid-century furniture. Imported into European yards as kiln-dried slabs, it works cleanly and finishes to a deep, warm tone that ages well.
- This species record does not establish where an individual piece was grown or harvested. Check the origin details of the piece you are considering.
- Botanische Gruppe. Nadelhölzer sind Koniferen, Laubhölzer stammen von Laubbäumen.
- Die botanische Familie, zu der die Holzart gehört.
Benachrichtigen, wenn verfügbarReferenzholzart. Derzeit keine Stücke auf Lager.
Passt es zu Ihrem Projekt?
Ideal für
- Live-edge dining and conference tables
- Mid-century-style casework and credenzas
- Dark-toned kitchen islands and breakfast bars
- Desks and writing tables with figured tops
- Gunstocks, knife scales and high-end tool handles
- Turned bowls and hollow forms
Kein Amerikanischer Nussbaum im aktuellen Drop
Ähnliche Holzarten auf Lager
Derzeit kein Amerikanischer Nussbaum. Diese Holzarten eignen sich für dieselben Projekte und sind verfügbar.
Benachrichtigung zu Amerikanischer Nussbaum
Wir benachrichtigen Sie per E-Mail, wenn neue Amerikanischer Nussbaum-Bohlen bei KORENA eintreffen. Jedes Stück ist ein Unikat, deshalb zählt eine frühe Nachricht.
Holzbild
So sieht es aus
Heartwood ranges from chocolate brown to a purplish or greyish brown, often with darker streaks. Sapwood is pale cream, usually steamed at the mill to even out the contrast, but you'll still see some on wide slabs. Grain is generally straight, though figured boards (curl, crotch, burl) turn up regularly and command a premium. Medium, even texture takes detail well.
- Chocolate to purplish-brown heartwood
- Pale cream sapwood, often steamed for uniformity
- Darker streaks and figure on wider boards
- Lightens slightly under UV over the first year
- Deepens and warms under oil finishes
Arbeiten mit dieser Holzart
Verarbeitung
Easy across the board. Sawing, planing, sanding, turning and carving all rate 4 out of 5. Glues and screws without complaint. Steam bending is the one weak spot (3/5), workable for gentle curves, not the species you'd choose for tight bentwood seating. Sharp tooling keeps the surface clean; dull blades will burnish rather than tear.
Finish
Finishes beautifully with very little fuss. Hard wax oil and Danish oil deepen the brown without muddying the grain; a thin shellac seal coat helps if you're spraying lacquer over oily patches. Sanded to 180–220 it feels silky in the hand. Black walnut lightens slightly with UV exposure over the first year, the opposite of cherry, so a UV-inhibiting topcoat helps on pieces near windows.
Trocknung
Slabs arrive kiln-dried to roughly 8–10% MC. Movement in service is moderate, radial 5.0–6.0%, tangential 7.5–8.5%, so wide tops still want a breathable build (breadboard ends, slot-screwed cleats, or fixed-and-floating fasteners). Acclimatise to your shop for two to three weeks before final flattening.
Wie stark arbeitet es?
Holz quillt und schwindet in der Breite, wenn die Luft feuchter und trockener wird. Schätzen Sie das saisonale Arbeiten einer Amerikanischer Nussbaum-Platte, bevor Sie die Befestigung planen.
Erwartetes saisonales Arbeiten
etwa 9,1 mm
Platte mit Tischplattenhaltern oder Langlochwinkeln befestigen, nicht verleimen oder fest verschrauben.
Lineares Schwindmodell: Breite × (Schwindmaß ÷ 28 % Fasersättigung) × saisonale Feuchteschwankung. Verwendet 8 % Schwindmaß in Tangentialrichtung für Amerikanischer Nussbaum. Eine Planungsschätzung, keine Garantie.
Was es kostet
Sicherheit und Herkunft
- This species record does not establish where an individual piece was grown or harvested. Check the origin details of the piece you are considering.
- Status auf der Roten Liste der IUCN: die weltweite Schutzbewertung dieser Art.
Walnut dust contains juglone and is a known respiratory and skin sensitiser. Run a dust extractor at the source and wear a P3/FFP3 mask when sanding. Juglone-laden offcuts and shavings are toxic to horses and to some plants (tomatoes, apples), so don't compost or use as bedding. Cured finished surfaces are food-contact safe.
Den vollständigen Leitfaden lesenAusführliche Hinweise zu Maserung, Farbveränderung, Verarbeitung und Formstabilität.
What Black Walnut actually is#
Juglans nigra is the darkest wood in this catalogue and the North American counterpart to European walnut. Where Juglans regia is a lighter grey brown full of streaking, black walnut is a deeper, more uniform chocolate.
The other significant difference is commercial rather than botanical. Black walnut is grown as a forestry species across eastern North America, so it comes in larger, straighter, more consistent sizes than European walnut, much of which is salvaged from orchards and gardens. If you need matched material across several wide boards, black walnut is the easier species to source.
The steaming question, which matters more than most people realise#
A large proportion of commercial black walnut is steamed during kiln drying.
Steaming drives colour out of the dark heartwood and into the pale sapwood. The result is a board that reads more uniformly brown, with the sapwood muddied to a dull tan rather than staying cream. For a factory producing matched furniture components, that uniformity is the point.
For a live edge slab it is usually the opposite of what you want. The sharp contrast between pale cream sapwood and near black heartwood is one of the most striking features this species offers, and steaming destroys it.
Käuferfragen
Häufige Fragen von Käufern
How is Black Walnut different from European Walnut?
Black walnut, Juglans nigra, is darker and more uniformly chocolate brown, where European walnut runs lighter grey brown with more streaking and marbling. Black walnut is slightly softer at 4,490 N against 5,410 N but slightly stiffer at 11.0 GPa. Black walnut also comes in larger, more consistent sizes because it is grown as a forestry species rather than an orchard tree.
Is Black Walnut steamed, and does it matter?
Much commercial American black walnut is steamed during drying, which drives colour from the dark heartwood into the pale sapwood and makes the board look more uniformly brown. Unsteamed walnut keeps a sharp contrast between cream sapwood and dark heartwood. For a live edge slab where the sapwood line is a feature, unsteamed is usually what you want, and it is worth asking.
Does Black Walnut fade?
Yes. Like European walnut it lightens with light exposure rather than darkening, mellowing from deep chocolate toward a warmer, lighter brown. This is the opposite of what oak and cherry do. A UV inhibiting finish slows it without stopping it.
Is walnut dust dangerous?
Mechanische Eigenschaften
Technische Daten
Veröffentlichte Referenzwerte. Wo Quellen abweichen, steht die Spanne; der typische Wert wird für die Stufen oben verwendet.
| Dichte (kg/m³)Masse pro Kubikmeter bei etwa 12 % Holzfeuchte. Schwereres Holz ist meist härter und fester. | 560–660 kg/m³typisch 610 kg/m³ |
|---|---|
| Janka-Härte (N)Kraft, um eine Stahlkugel zur Hälfte ins Holz zu drücken. Das Standardmaß für Eindruckfestigkeit. | 4,100–4,900 Ntypisch 4.490 N |
| MOR: Biegebruchmodul (MPa)Biegefestigkeit: die Last, bei der ein Balken bricht. | 100–110 MPa |
| MOE: Elastizitätsmodul (GPa)Biegesteifigkeit: wie stark ein Regalboden oder eine Platte unter Last durchhängt. | 11.0–12.0 GPa |
| Radiales SchwindenSchwindmaß quer zu den Jahrringen, von frisch bis darrtrocken. Riftbretter arbeiten in diesem Maß. | 5.0–6.0 % |
| Tangentiales SchwindenSchwindmaß entlang der Jahrringe. Fladerbretter und die meisten Bohlen arbeiten in diesem Maß. |
