Drying up your damp crawlspace with crawlspace encapsulation is the first step towards a clean and healthy environment ready for living, storage, and play. Waters Basement Services can turn your musty, humid, wet crawspace into a bright order-free space.
The Rockwell hardness test is the most used and versatile of the hardness tests. For soft materials such as copper alloys, soft steel, and aluminum alloys a 1/16 diameter steel ball is used with a 100-kilogram load and the hardness is read on the B scale.
Current practice in the United States divides hardness testing into two cat-. egories: macrohardness and microhardness. Macrohardness refers to testing. with applied loads on the indenter of more than 1 kg and covers, for exam-. ple, the testing of tools, dies, and sheet material in the heavier gages. In. microhardness testing, applied loads are 1 kg and below, and material being. tested is very thin (down to 0.0125 mm, or 0.0005 in.).