Metrology – Cast Iron Angle Plate

Metrology Cast Iron Angle PlateGMT CAST IRON ANGLE PLATE

Firstly, GMT have been the pioneer Cast Iron Angle plate manufacturer and exporter in India. Besides, GMT Cast Iron Angle Plates are made of high duty close grained cast iron to IS: 210 Grade 20. Because they are well ribbed, the plates minimize distortion and are artificially seasoned as recommended in IS 2554: 1971.

Secondly, GMT Cast Iron Angle plates conform to IS 2554:1971 and are offered in two grades, Grade-I and Grade-II. Hence, they are manufactured in different sizes to meet a wide range of requirements. Similarly, Grade-I plates are very carefully hand scraped on to Grade-I limits as per IS: 2554: 1971. Also, Grade-II Plates are finish machined on all the working surfaces to accuracies conforming to Grade-II limits as per IS: 2554:1971.

Thirdly, plates sizes 1 to 5 provided with suitable number of T-Slots on one work face. Besides, divided clamping holes are provided on the other working surface. Furthermore, T-Slots dimensions conform to IS: 2013:1962. Also, sizes 6 and 7 are provided with elongated slots on both the working faces to facilitate clamping.

Also, to meet special requirements, we offer precision matched angle blocks suitable to provide a convenient means for mounting and clamping work for boring and milling operations.


  • Firstly, they are made from heavy section castings
  • Secondly, the working surfaces are hand scraped
  • Thirdly, the LBH dimensions are maintained to close tolerances
  • Also, T-Slots are provided on the working surfaces to facilitate clamping


Deviation expressed in μm (0.001mm)

DIMENSIONS GRADE Flatness Squareness Parallelism Squareness
(LxBxH in mm) working faces exterior faces over dimension H of opposite faces & edges over their total length of end faces with respect to exterior faces as measured over dimension L
1000x900x1200 I 30 60 65 65
II 150 300 325 325
900x600x700 I 20 36 40 40
II 100 200 225 225
750x450x600 I 10 230 23 23
II 50 100 115 115
450x300x350 I 10 18 20 20
II 50 100 113 113
350x200x250 I 8 18 20 20
II 38 75 88 88
250x150x175 I 8 15 18 18
175x100x125 I 5 13 15 15

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