Granite measuring plate 1200x1000x150mm, accuracy DIN876/00, Accurata

Average granite slab

Size: 1200x1000 mm
Accuracy: 00

Standard: DIN876, resp. DIN876/00

Accuracy classes of granite slabs according to DIN876, where L is the length in mm:
00: 2 L / 500 um
0: 4 L / 250 um
1: 10 L / 100 um
2 : 20 L / 50 um

The plate thus meets the specified accuracy according to DIN876, and it is also produced according to more demanding production tolerances - see below. In practice, it therefore has an even more precise flatness than the DIN876 standard.

Manufacturing tolerance of granite slabs, where L is the length in mm:
000 : (0.003 x L 2.5)/4 um
00 : (0.003 x L 2.5)/2 um
0 : (0.003 x L 2.5) um
1 : (0.003 x L 5) um

Material : best quality black granite from a granite mine - natural granite
Specific density: 2970-3070kg/m3
Strength: 245-254 MPa
Elasticity: 120-127 GPa
Coefficient of expansion: 4.61 x 10-6 /°C
Water absorption: < 0.07%
Shore hardness: over 70Hs

Advantages of granite slabs:
1. High accuracy, shape and dimensional stability under standard temperature conditions
2. No rust
3. Highly abrasion-resistant black granite guarantees a long service life
4. Any snags, scratches or similar accidents during the use of black granite products do not cause "material roll-out" and do not affect the accuracy
5. Non-magnetic
6. The mirror-smooth surface enables smooth movement of the measured part or gauge during the measurement.