Material:Cast Iron
HT200-300
HT200-300
Product: Cast Iron Straightedge
Specification: 200mm-8000mm. We have standard size in stock. (special specifications can be made as your requirement).
Manudacturing according to Standard JB/T7974-99,Material is HT200-250,Working surface made by scraping or grinding.Used for testing the workpiece straightness and flatness,and equipment installation. Working environment temperature is (20 ± 5) °C .
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Specification(mm)
|
Straightness and flatness
of working surface |
Parallelism between working surfaces
|
|||||
|
Precision Grade(μm)
|
|||||||
|
Grade 0
|
Grade 1
|
Grade 2
|
Grade 0
|
Grade 1
|
Grade 2
|
||
|
200
|
2
|
4
|
8
|
3
|
6
|
12
|
|
|
500
|
3
|
6
|
12
|
4
|
8
|
15
|
|
|
750
|
4
|
8
|
15
|
6
|
12
|
25
|
|
|
1000
|
5
|
10
|
20
|
8
|
15
|
30
|
|
|
1500
|
-
|
15
|
30
|
-
|
20
|
40
|
|
|
2000
|
-
|
20
|
40
|
-
|
25
|
50
|
|
|
2500
|
-
|
25
|
50
|
-
|
32
|
65
|
|
|
3000
|
-
|
30
|
60
|
-
|
40
|
80
|
|
|
4000
|
-
|
40
|
80
|
-
|
50
|
100
|
|
|
5000
|
-
|
50
|
100
|
-
|
-
|
120
|
|
|
6000
|
-
|
-
|
120
|
-
|
-
|
140
|
|
Usage:
It’s widely used for setting up and leveling machinery and for checking and spotting bearing surfaces during hand scraping operations. Jessie Deng service_a(at)pingban(dot)com