High-precision granite

Granite Straightedge (4 sides)

Features
1. Indian Black Granite
2. Bulk Density: 3.1 g/cm³
3. Water Absorption: 0.15%
4. Dry Compressive Strength: 288 MPa
5. Dry Flexural Strength: 30 MPa
6. Water-Saturated Flexural Strength: 30 MPa

Description

Granite Straightedge (Precision on Both Sides Performance)

Features:
1. Straightedge: Used for straightness and flatness measurement, manually ground with high precision.
2. Parallelism of both sides: Equals single side precision * 2.

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Specifications

    00 grade  
(L*W*T)  mm (KG) Accuracy
(um)
Model No.  
400*50*40   2 TSB   400*50-00
500*70*60   2 TSB   500*70-00
600*80*60   2 TSB   600*80-00
800*100*60   2.5 TSB  800*100-00
1000*125*60   3 TSB 1000*125-00
1200*150*60   4.5 TSB 1200*150-00
1500*190*70   5 TSB 1500*190-00
2000*250*80   6 TSB 2000*250-00
2500*310*100   7 TSB 2500*310-00
3000*375*120   8 TSB 3000*375-00
4000*500*160   10 TSB 4000*500-00
**Calculation Formula:**  
- Parallel Precision: Flatness Precision * 2  
Made from high-quality granite, the precision of the granite plates is referenced according to German national standards:  
- The perpendicularity of the side surfaces follows the DIN 875 standard  
- Flatness precision follows the DIN 876 standard  
Essential for precision inspection and laboratory fixtures. Made from granite with low moisture content, non-weathered rock, and excellent material quality. Customizable according to customer requirements.
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