Cast Iron Straight Edge
Cast Iron Straight Edge Cast Iron HT 250 JB/T7977-9 Test the straightness flatness of workpiece and equipment installing.
Cast Iron Straight Edge
Feature:
According to Standard JB/T7974-99Material: HT250Working Surface made by scraping or grindingUsed to testing the workpiece straightness and equipment installation.Working environment temperature is (20±5)°CUsage:
a.It is used to test the straightness and flatness of workpiece and equipment installing.
b. Straight edges are also used for blue matching during hand scrapping operations&have wide and parallel working surface for application of spirit level.
Specification:
Specification:500mm-8000mm
Special specificaton can be made as your special need.
| Specification | Straightness&flatness of working surface | Parallelism between working surface | ||||
| Precision Grade(μm) | ||||||
| Grade 0 | Grade 1 | Grade 2 | Grade 0 | Grade 1 | Grade 2 | |
| 500×35 | 3 | 6 | 12 | 4.54 | 9 | 18 |
| 750×40 | 4 | 8 | 15 | 6 | 12 | 25 |
| 1000×50 | 5 | 10 | 20 | 7.5 | 15 | 30 |
| 1250×50 | 12 | 24 | 18 | 36 | ||
| 1600×70 | 15 | 30 | 20 | 40 | ||
| 2000×80 | 18 | 36 | 27 | 54 | ||
| 2500×80 | 44 | 65 | ||||
| 3000×100 | 52 | 78 | ||||
| 3500×100 | 50 | 90 | ||||
| 4000×100 | 68 | 100 | ||||
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Cast Iron Straight Edge
