Instron 2716-010 - Page 23

23
Jaw Faces
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Caution
Do not use serrated jaw faces to test specimens with a hardness greater than 50
Rockwell C. The serrations may not penetrate extremely hard specimens; also, hard
specimens will cause excessive serration wear.
The following are common jaw face specifications:
2703-156 Flat 6.4 to 12.6
(0.25 to 0.50)
11.4 to 17.6
(0.45 to 0.70)
1mm pitch (25 teeth per
in.)
2703-157 Flat 0 to 6.4
(0 to 0.25)
5 to 11.4
(0.20 to 0.45)
Surfalloy coated (emery
grit of 100)
2703-158 Flat 6.4 to 12.6
(0.25 to 0.50)
11.4 to 17.6
(0.45 to 0.70)
Surfalloy coated (emery
grit of 100)
2703-160 Flat 0 to 6.4
(0 to 0.25)
5 to 11.4
(0.20 to 0.45)
Rubber coated (emery
grit of 100)
2703-153 Round 3.2 to 7.8
(0.12 to 0.31)
Diameter
8.2 to 12.8
(0.32 to 0.50)
Diameter
1mm pitch (25 teeth per
in.)
2703-154 Round 7.1 to 12.6
(0.28 to 0.50)
Diameter
12.1 to 17.6
(0.48 to 0.70)
Diameter
1mm pitch (25 teeth per
in.)
Table 4. 2716-020 (50 kN) Ranges for Specimen Thickness (Continued)
Catalog
Number
Specimen
Type Specimen Thickness Surface
With Spacers
mm (in)
Without Spacers
mm (in)
Parameter Specification
Construction Tool steel
Height 57 mm (2.2 in.)
Width 25 mm (1 in.)