Pink Granite Surface Plate
Pink granite this type of granite.
Pink granite surface plate. 4 ledge type 18 x 24 x 4. Tag is gone but believe it was a starrett inspection grade plate we closed our gauge shop in 09 and. Most of the granite is gray to light gray and is dyed black in some cases. More now have a lot of precision shop tooling to sell.
Even distribution of large quartz crystals provides a smooth finish. Surface plates can be made from a variety of materials including cast iron glass steel and granite. Standard sizes and grades are available below. The longer a surface plate holds its accuracy the less often it will require resurfacing ultimately providing better value.
Crystal pink starrett crystal pink granite has the highest percentage of quartz of any granite. There are two types of granite commonly favored in surface plate construction. The pink color is due to very high crystalline quartz content. Pink vs granite surface plate it is important to note that color alone is not an indication of the physical qualities of the stone.
Crystal pink granite surface plates are accurate for use in metrology labs and durable enough for the shopfloor. Starrett crystal pink granite has the highest percentage of quartz of any granite. Quarried in one of starrett s granite quarries these surface plates are among the best in the world. Whether for general inspection work or for working throughout the shop our stock of crystal pink granite surface plates have a great surface hardness and wear resistance with the highest percent of quartz crystals of any granite plate.
Please check back often. Surface plates get the ultimate reference measuring surface with travers wide selection of surface plates. Custom sizes and grades can be quoted. The name is derived from the fact that it has the highest crystalline quartz content of.
Starrett pink granite surface plates have been a standard in american factories for several generations. During world war ii when metal was necessary for military production using granite for surface plates came into common use. Starrett crystal pink granite surface plates are accurate for use in metrology laboratories and wear resistant for use in abrasive shop environments. Lab grade aa plates are considerably thicker than lesser grade surface plates in order to have less deflection which is per the standards for surface plates.
Naperville il usa used pink granite surface plate in good condition. If your application requires frequent movement across the surface pink granite your best bet. Keep in mind that the thicker the pink granite surface plate is the heavier of loads it can bear. In general the color of granite is determined by the presence or absence of minerals which may have no bearing on the qualities that make good surface plate material.
Higher quartz content means greater wear resistance.