Janka hardness test - Wikipedia
The Janka hardness test (English: / ˈ dʒ æ ŋ k ə /; [1] German:), created by Austrian-born American researcher Gabriel Janka (1864–1932), measures the resistance of a sample of wood to denting and wear.
Janka Hardness - Bell Forest Products
The Janka scale is used to determine the relative hardness of particular domestic or exotic wood species. The Janka test measures the amount of force required to embed a 0.444" steel ball into the wood to half of its diameter.
Janka Hardness Scale Explained (Complete Wood Ratings)
2022年7月1日 · The Janka hardness test is a variation or adaptation of the Brinell hardness test. The Janka scale ranges from 0 to over 4000lbf, with softer woods scoring lower on the scale and harder wood scoring higher.
Janka Hardness - The Wood Database
Janka hardness testing. The actual number listed in the wood profile is the amount of pounds-force (lb f) or newtons (N) required to imbed a .444″ (11.28 mm) diameter steel ball into the wood to half the ball’s diameter. This number is given for wood that has been dried to a 12% moisture content, unless otherwise noted.
Janka Hardness Scale: A Guide to Evaluating Wood Durability
The Janka hardness test is a standard test used to determine the hardness of wood. It measures the force required to embed a small steel ball into the wood to half its diameter. This measurement indicates the wood’s resistance to denting and wear, which is essential in determining its suitability for various applications.
What Is the Janka Wood Hardness Scale? - The Family Handyman
2023年7月12日 · The Janka scale, simply put, records the density of wood by testing its resistance to denting. The test measures the force required to embed a .444-inch (11.28mm) diameter steel ball halfway into a piece of wood.
Janka Hardness Scale for Wood: Superb Guide to Wood Hardness
2023年9月25日 · The Janka hardness test measures the force needed to push a steel ball with a diameter of 0.444 inches into a piece of wood. The test measures the force required to embed the ball into the wood to half its diameter and produces a …