Supply granite slab granite platform granite inspection plate

Granite slab granite slab can be maintained at a high load precision for industrial production and laboratory measurements supplier: Ding Machinery Factory Botou excellent origin: City of Hebei Province cross the River Zone QQ: 1690892257 Tel: 0317-8031203 Mobile: 15233275726 (Changzhou) 15852708925 (Wuxi) flat granite stone main mineral components of pyroxene, plagioclase, minor olivine, biotite and traces of magnetite, black gloss, structural precision, After millions of years of aging, even texture, good stability, high strength, high hardness, high accuracy can be maintained under heavy load; suitable for industrial production and laboratory measurements. Granite slab physical properties: flatness tolerance according to GB4987-85 standard: 000 = 1 × (1 + d / 1000) um 00 级 = 2 × (1 + d / 1000) um 0 级 = 4 × (1+ d / 1000) um 级 1 = 8 × (1 + d / 1000) um (d diagonal mm) (measured temperature is generally 20 ± 2 ℃) granite slab proportion: 2970 -3070kg / m2 compressive strength : 245-254N / m linear expansion coefficient: 4.61 × 10-6 / ℃ Water absorption: <0.13% Shore hardness: Hs70 granite slab above characteristics and advantages: 1, the long-term natural aging rock, uniform organizational structure, small linear expansion coefficient, internal stress completely disappeared, no deformation, so high accuracy. 2, rigid, high hardness, wear resistance. 3, not afraid of acid, alkaline liquid material erosion, will not rust, do not oiled, easy to stick dust, maintenance, convenient and simple maintenance, long service life. 4, will not scratch, without a constant temperature to prevent, at room temperature can be maintained temperature measurement accuracy. 5, no magnetization measurements can move smoothly, without Zhise sense, not damp the impact plane that set good. Specifications :( granite slab to be customized special specifications) Size (mm) granite slab flatness Accuracy class 000 00 0 flatness flatness a plane flatness tolerance (um) 300 × 300 × 70 1.5 3 5.5 11 300 × 400 × 70 1.5 3 6 12 400 × 400 × 70 2 3.5 6.5 13 400 × 500 × 100 2 3.5 7 14 400 × 600 × 100 2 3.5 7 14 400 × 630 × 100 2 3.5 7 14 450 × 600 × 100 2 3.5 7 14 500 × 600 × 100 2 3.5 7 14 500 × 800 × 100 2 4 8 16 600 × 900 × 100 2.5 4.5 9 18 600 × 900 × 130 2.5 4.5 9 18 1000 × 630 × 150 2.5 4.5 9 18 1000 × 750 × 150 2.5 4.5 9 18 1000 × 1000 × 150 2.5 5 10 20 1000 × 1500 × 200 2.9 5.7 11.3 22.6 1000 × 1600 × 200 3 6 12 24 1000 × 2000 × 200 3.5 6.5 13 26 1500 × 2000 × 200 3.5 7 14 28 1500 × 2000 × 300 3.5 7 14 28 1500 × 3000 × 300 3.5 7 14 28 2000 × 3000 × 300 4.5 8 18 36 2000 × 4000 × 400 Read more about granite slab | Granite platform | granite inspection plate | Related content http://www.btydjxc.com