Specification MaterialSteelGrade0Hardness800HVThe coefficient of thermal expansion 10 6 ℃ 11 5±1Density g cm3 7 8Flexural strength MPa 2000Modulus of elasticity 104Kgf mm2 2 1Poisson ratio0 3Thermal conductivity cal cm sec C 0 13Features Heat treated and hardened steel blocks are ultra strong High Precision stable sturdy not easy to rust 32Pcs set meet your different choices Package Included 1 x Block 1 005mm9 x Blocks 1 01 1 09mm 0 01 steps 9 x Blocks 1 1 1 9mm 0 1 steps 9 x Blocks 1 9mm 1 steps 3 x Blocks 10 20 30 mm 10 steps 1 x Blocks 50mm
