black granite surface plate Granite Surface Plate from China manufacturer

black granite surface plate Granite Surface Plate

Price:	100.0~6000.0 USD
Payment Terms:	T/T,L/C
Place of Origin:	Hebei, China (Mainland)


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Product Detail

Model No.: CHGP-001

Production Capacity: 500 Ton/Tons / Month

Delivery Date: 30-100days according to qua...

Material: Jinan Black Granite

Standard: JB/T 7975-1999

Means of Transport: Ocean,Air

Packing: WOODEN CASE

Product name: Granite Surface Plate

Precision Grade: 000.00.0.1

Function: Precision Measurement

1.The largest size for production
is 3000mm width and 6000mm length
2.We also accept to make
any relative process

Granite Surface Plates

Granite mainly composition is augite,Plagioclase,few olivine ,biotite and micro- magnetite,black bright color,structure of precision,through millions of years ageing,uniform texture,good stability,high strength ,high hardness and so on.It keep high precision in heavy load,being used in industry producing and lab measuring commonly.

1.The largest size for production is 3000mm width and 6000mm length
2.We also accept to make any relative process

Physical properties:

Specific gravity:	2970-3070Kg/ m3	Compressive strength:	245-254N/m m2
Water absorption	0.13%	Elastic grinding amount:	1.27-1.47 N/m m2
Coefficient of linear expansion	4.61×10-6 /°C	Shore hardness:	above Hs70

Bran granite surface plate accuracy

refer advanced leading countries

standard.flatness tolerance as follows:

grade 000 1X(1+d/1000)um

grade 00 2x(1+d/1000)um

grade 14x(1+d/1000)um

grade 1 8x(1+d/1000)um

(d is the length of the plate's diagonal)

Type Length ×width ×height	weight Kg	Grade000 µm	Grade00µm	Grade0µm	Grade1µm
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
800×500×130	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	26
2000×1600×300	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

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