Optical Properties | Transmittance |
Refractive Index | 1.5168 |
Abbe Number | 63.96 |
Mechanical Properties | Standard Value |
Density | 2.51g/cm³ |
Knoop Hardness HK100 | 610kg/mm² |
Young's Modulus E | 82 x 10³kN/mm² |
Poisson’s Ratio μ | 0.21 |
Thermal Properties | Standard Value |
Softening Point | 719°C |
Annealing Point | 657°C |
Strain Point | 624°C |
Thermal Conductivity | 1.1W/m·°C |
Specific Heat | 879J/kg·°C |
Coefficient of Thermal Expansion | 7.1x10â»â¶/K |
Chemical Properties | Standard Value |
Hydrolysis Resistance | Grade II |
Acid Resistance | Grade I |
Alkali Resistance | Grade II |
Asphalt Roller 1.5 TonCompactor Vibratory
Small walk-behind rollers first appeared in the United Kingdom in the 1980s. A machine manufacturer named Piffert developed and produced the first small walk-behind rollers. The rollers produced at that time had a very simple structure and were inconvenient to operate..We are a real manufacturer, looking for agents all over the world
Vibrating Road Roller,Vibrating Wheel Compactor,Small Roller Compactor,Vibration Asphalt Compactor Roller
Shandong Davoo Machinery Co., Ltd. , https://www.sddigger.com