Sweet gum janka hardness

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August undefined, 2024

WebJanka Hardness: 850 lb f (3,780 N) Modulus of Rupture: 12,500 lb f /in 2 (86.2 MPa) Elastic Modulus: 1,640,000 lb f /in 2 (11.31 GPa) Crushing Strength: 6,320 lb f /in 2 (43.6 MPa) Shrinkage: Radial: 5.3%, … http://www.countyfloors.com/about_janka.html

Uses for a Sweet Gum Tree Home Guides SF Gate

WebOverall, the wood shrinks about 15% in drying, which is much higher than most other hardwoods. It also has interlocked grain that causes this warping and splitting. Gum also moves considerably after drying when the RH changes; that is, it is not known to be especially stable. WebJul 24, 2024 · Timber hardness is rated by something called the Janka hardness test, named after Austrian Gabriel Janka. Hardness is measured based on the wood’s resistance to denting and wear, and is carried out by embedding a small steel ball into the wood. The amount of force required to embed the ball provides the hardness rating, and is … taudtmann berlin

What Is the Janka Wood Hardness Scale? - Family Handyman

WebDescription : Sweet gum is a large tree with a long, cylindrical trunk, pyramidal crown, and corky wings on branches and twigs. Leaves are alternate, simple, star-shaped, with 5 … WebRed gum lumber is considered a specialty product and not quoted in the market reports. Some red gum lumber is still produced and even sold on the export market. There are a … WebJanka Hardness Scale for Wood Flooring Species The Janka hardness test is a measurement of the force necessary to embed a .444-inch steel ball to half its diameter in wood, expressed in pounds-force (lbf). taud training login

Sweet gum janka hardness

WebNov 25, 2010 · Appreciate the numbers and the range and wonder how all of this is affected by the fact that most of our drums that have plys, are less than 5mm, as DMG suggests with the hardness test, and the fact that between the layers or plys is glue. Just a thought. That is a very good point. WebIt is a very hard, strong and sturdy timber, with a broad range of applications, because of its resistance to lyctid borers and termites. Janka hardness score of Grey Ironbark: 3,680 lbf (pound force) 10. Black Ironwood (Krugiodendron ferreum) The tenth hardest wood on our list is Black Ironwood.

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WebJANKA HARDNESS While there are many factors to consider when choosing your hardwood flooring, the durability of a particular hardwood is definitely one factor to consider. The harder a wood is the more durable it tends to be. WebHardness, or “JANKA VALUE” is measured with a test of resistance of a sample of wood to denting and wear. It measures the force required to embed an 11.28mm (.444 in) steel …

WebJanka Hardness: 1,125 pounds Strength (MOR): 16,200 psi Stiffness (MOE): 1,880 1000 psi Density (KG/m3): 646 Color: Pale red to pink heartwood with whitish-yellow sapwood. Photosensitivity: Moderate Tangential Shrinkage: 6.6 % Radial Shrinkage: 4.6 % Family: Myrtaceae Tree Characteristics: WebAug 29, 2024 · The side hardness of teak, for example, is in the range 3730 to 4800 newtons, while the end hardness is in the range 4150 to 4500 newtons. The most common use of Janka hardness ratings is to determine whether a species is suitable for use as flooring. Notes on the table The pale blue background indicates species growing in North …

WebAug 24, 2024 · What Is the Janka Hardness Scale? The Janka scale, simply put, records the density of wood by testing its resistance to denting. The test measures the force … Websweet-gum, American sweet-gum, sweet gum, sweetgum All pictures (5) Share; All pictures. Content Detail. Sidebar Navigation. Overview More Information Care Knowledge Cultivars Sweet-gum is known for its unique star-shaped leaves with outstanding yellow, red, and purple fall color. It can be an excellent shade tree in the right location, away ...

WebFrom Gene Wengert, forum technical advisor: The heartwood of sweet gum is reddish, and is therefore called red gum. The sapwood is white and is called sapgum. Both are …

WebThese ratings were determined using the Janka Hardness Test which measures the side hardness of the force required to embed a .444 inch steel ball to half its diameter into the wood. Janka Hardness Table. ... sweet: Betula lenta: 1460: madrone, Pacific: Arbutus menziesii: 1460: oak, willow: Quercus phellos: 1450: maple, sugar: Acer saccharum ... taudulWebJanka Hardness (pounds-force) Patagonian Rosewood / Curupay: 3840: Brazilian Ebony: 3692: Ipê / “Brazilian Walnut” / Lapacho: 3684: African Pearwood / Moabi: 3680: Bolivian … 90小橙武任务流程WebThe Janka Hardness Scale determines the hardness of a particular type of wood over another. The scale was invented in 1906 by Gabriel Janka, an Austrian wood researcher, and standardized in 1927 by the American … taudunWebEucalyptus Lumber Scientific Properties and Technical Specifications. Janka Hardness: 1,125 pounds. Strength (MOR): 16,200 psi. Stiffness (MOE): 1,880 1000 psi. Density … 90工作日是多长时间http://www.exoticfloorsdirect.com/janka-ratings/ 90小花旦WebIt is hard and stiff, with excellent shock-resistance. Janka Hardness: Various Birch species range from the upper-lower to the upper-middle end of the Janka hardness scale. Paper birch is 910 (nine percent softer than teak). Yellow birch is 1260, comparable to white oak (seven percent softer). tau duneWeb21 rows · For more information on non-native species, refer to the “Don’t be fooled” article. Janka Rating System. When in doubt about the type of wood to select for your cabinetry, … tau du lich sapa