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Technical Data

Gauge blocks according to DIN EN ISO 3650 in the tolerance classes K/ 0/ 1 and 2

Application:
As standard measures with highest precision, they serve for adjusting and checking indicating measuring devices and length-measuring systems.
Furthermore, they are used for monitoring gauges and measuring devices. They can be used individually or as combination of several individual measurements that are wrung together.

Material/ production:
As manufacturer of steel gauge blocks we use specially melted high-quality gauge steel. Due to careful hardening and a particular aging procedure we obtain high wear resistance and dimensional stability. Special lapping procedures guarantee excellent surface quality and very good adhesion of the measuring faces.

Comparison of materials Linear coefficient of thermal
expansion Kelvin -1
Density
g/cm3
Hardness
(Vickers)
Oxide-carbide
"Superdur"
7,5 x 10-6 4,3 2000
Steel 11,5 x 10-6 7,85 800
Cemented carbide 5,3 x 10-6 14,7 1600
Ceramics 9,7 x 10-6   1350

Admissible variations and tolerances (values in µm according to DIN EN ISO 3650)

Nominal dimensional
range in mm
Tolerance class
K
Tolerance class
0
Tolerance class
1
Tolerance class
2
over up to Limit deviation of the length of the nominal dimension at an arbitrary spot Tolerance for the deviation
range
     
    ± te in µm tv in µm ± te tv ± te tv ± te tv
-100,20,050,120,10,20,160,450,3
10250,30,050,140,10,30,160,60,3
25500,40,060,20,10,40,180,80,3
50750,50,060,250,120,50,1810,35
751000,60,070,30,120,60,21,20,35
1001500,80,080,40,140,80,21,60,4
15020010,090,50,1610,2520,4
2002501,20,10,60,161,20,252,40,45
2503001,40,10,70,181,40,252,80,5
3004001,80,120,90,21,80,33,60,5
4005002,20,141,10,252,20,354,40,6
5006002,60,161,30,252,60,450,7
60070030,181,50,330,4560,7
7008003,40,21,70,33,40,56,50,8
8009003,80,21,90,353,80,57,50,9
90010004,20,2520,44,20,681
Cross sections for the nominal dimensional ranges 0,3 - 10 mm = 30 x 9 mm
  über 10 mm = 35 x 9 mm

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