precision black granite straight edge

Brand:aa

Product detail:

u  granite straight edge

u  Place of Origin: Shen Zhen, China (Mainland)

u  Brand Name: Hua An Brand

u  Material: Natural Black Granite

u  Accuracy: Grade "00" "0","1"

u  Flatness test by: Electronic Level Meter

u  Test Standard: According to DIN/JIS/GB

Packaging & Delivery

Packed with Delicate Aluminum Case for small size; Wooden case form large size

Delivery time: from one week to one month

 Product Specialty:

u  Made of high quality Natural Black Granite

u  High precision and high stability.

u No rust and anticorrosion.

u Non magnetization.

u Good abrasion resistance.

Physical Property of Natural Black Granite:

u  Specific Gravity:         3.03 g/cm3

u  Shore Hardness:          > 70Hs-80Hs

u  Tensile strength:          211Kg/cm2

u  Compressive Strength:         245-254Mpa

u  Linear Expansion Coefficient: 4.61´10--6/°C

u  Elastic Modulus:                 30-50Gpa

u  Water Absorptive:           ≤0.13%

 

Specifications:

 

specification    model	straightness&flatness of working surface		parallelism between working surfaces		squareness between working surface and side surface		overall dimension(mm)	weight/unit(kg)
	precision grade(µm)
	00	0	00	0	00	0
SP400	1.6	2.6	2.4	3.9	8	13	400×60×35	3.14
SP630	2.1	3.5	3.2	5.3	10.5	18	630×100×50	10.74
SP1000	3	5	4.5	7.5	15	25	1000×160×50	46
SP1600	4.4	7.4	6.6	11.1	22	37	1600×200×80	82.2
SP2000	5.4	9	8.1	13.5	27	45	2000×250×100	159.6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Note : non standard products could be made to meet customer's special requirements