Granite slab - Granite platform - Rock slab

Granite slabs belong to the granite measuring tool series. The main mineral components of granite slabs are pyroxene, plagioclase, a small amount of olivine, biotite, and trace magnetite, with a black color and precise structure.

The main mineral components of granite slab material are pyroxene, plagioclase, a small amount of olivine, biotite, and trace magnetite.Inspection surface plateThe color is bright, the structure is precise, and after billions of years of aging, the texture is uniform, the stability is good, the strength is high, the hardness is high, and it can maintain high precision under heavy loadsInspection surface plateThe performance index is: specific gravity is 2970-3070kg/m3; The compressive strength is 245-254kg/mm2; The elastic wear amount is 1.27-1.47N/mm2; The coefficient of linear expansion is 4.6 × 10-6/℃; Water absorption rate is 0.13%. The Shore hardness is above HS70.
Inspection surface plateThe accuracy is divided into four levels: 000, 00, 0, and 1.

Inspection surface plateThe organizational structure is dense, the surface is smooth and wear-resistant, and the roughness value is small; After long-term natural aging, the internal stress completely disappears, the material is stable, and will not deform.Inspection surface plateAcid, alkali, corrosion, and magnetic resistance; Small coefficient of linear expansion, less affected by temperature; Will not get damp or rust, easy to use and maintain.Inspection surface plateAfter collision or scratch on the working surface, only pits will be formed, without any protrusions or burrs, which has no impact on the measurement accuracy.

Inspection surface plateThe disadvantage is that it cannot withstand excessive impact or knocking, and will deform when exposed to high humidity, with a moisture absorption rate of 1%.Inspection surface plateIt is an ideal tool for marking and inspection in precision machining enterprises, suitable for industrial production and laboratory measurement work.

Specifications long×wide×thick	weightkg	000Grade accuracy μm	00Grade accuracy μm	0Grade accuracy μm	1Grade accuracy μm
300×300×50	19	1.5	3	6	12
400×300×70	25	1.5	3	6	12
400×400×70	48	2	3.5	6.5	13
630×400×100	76	2	3.5	7	14
630×630×100	155	2	4	8	16
800×600×100	156	2	4	8	16
1000×630×130	284	2.5	4.5	9	18
1000×750×150	338	2.5	5	9	18
1000×1000×150	450	2.5	5	10	20
1600×1000×200	963	3	6	12	24
2000×1000×200	1200	3.5	6.5	13	26
1600×1600×300	2312	3.5	6.5	13	260×1600×300
	2890	3.5	7	14	28
2500×1600×300	3612	4	8	16	32
3000×2000×500	9030	4.5	9	18	36
4000×2000×500	12040	5.5	11	22	44
6000×2000×700	25284	7.5	15	30	60