POM 900P DuPont property data ① described some of the specifications of raw materials level: injection grade Color: --- Application: more and more difficult to fill the cavity thin meat moldings. Remarks: processing characteristics: low viscosity liquid resin surface lubrication, DELRIN 900P has excellent molding characteristics. Product: DELRIN 500 with similar, but slightly lower tensile elongation and impact strength. ② raw technical data Performance of projects to test conditions [state] method of test data data test unit Physical properties of gravity --- ASTM D-792 1.42 --- water absorption of 24 hours immersion ASTM D-570 0.25% water absorption of 50% relative humidity ASTM D -570 dipping 0.22% water absorption equilibrium point ASTM D-570 0.90% mold shrinkage of 2.2-2.4% ------ Mechanical properties Hardness M --- ASTM D-785 94 --- Rockwell hardness R - - ASTM D-785 120 --- tensile strength -55 ℃ ASTM D-638 101 MPa tensile strength 23 ℃ ASTM D-638 69 MPa tensile strength 70 ℃ ASTM D-638 48 MPa tensile strength of 100 ℃ ASTM D -638 36 MPa tensile strength of 122 ℃ ASTM D-638 26 MPa tensile deformation of the rupture point -55 ℃ ASTM D-638 10% tensile deformation of the rupture point 23 ℃ ASTM D-638 25% tensile deformation of rupture point 70 ℃ ASTM D-638 180% tensile deformation of the rupture point 100 ℃ ASTM D-638> 260% tensile deformation of the rupture point 122 ℃ ASTM D-638> 260% modulus of elasticity 23 ℃ ASTM D-638 3640 MPa flexural coefficient of -55 ℃ ASTM D-790 4730 MPa flexural coefficient 23 ℃ ASTM D-790 3220 MPa flexural coefficient 70 ℃ ASTM D-790 1720 MPa flexural coefficient 100 ℃ ASTM D-790 1030 MPa flexural coefficient 122 ℃ ASTM D -790 755 MPa flexural deformation strength 23 ℃ ASTM D-790 97 MPa compressive stress of 23 ℃, 1% deformation ASTM D-695 35 MPa compressive stress of 23 ℃, 10% deformation ASTM D-695 121 MPa shear strength 23 ℃ ASTM D-732 66 MPa, flexural fatigue endurance limit of 50% RH, 23 ℃, 106 cycles ASTM D-671 32 MPa load deformation of 140kg/cm2, 50 ℃ ASTM D-621 0.5% tensile impact strength test piece 23 ℃ length ASTM D-1822 250 kj/m2 IZOD notched impact strength 23 ℃ ASTM D-256 1620 j / m IZOD notched impact strength -40 ℃ ASTM D-256 55 j / m IZOD impact strength 23 ℃ ASTM D-256 71 j / m electric arc resistance properties 3.1mm ASTM D-495 220 sec dielectric strength instantly Short time (2.3mm) ASTM D-149 19.7 kv / mm volume resistivity of 23 ℃, 0.2% moisture ASTM D-257 1 × 1015 Ω. cm dielectric constant 50% RH, 23 ℃, 102 ~ 106Hz ASTM D-150 3.7 Ω.cm dielectric factor of 50% RH, 23 ℃, 106Hz ASTM D-150 0.005 --- thermal properties of linear thermal expansion coefficient 60 ~ 104 ℃ ASTM D-696 13.7 10-5m / m ℃ linear thermal expansion coefficient of 104 ~ 160 ℃ ASTM D-696 14.9 10-5m / m ℃ pyrophoric --- UL 94 HB --- heat distortion temperature 1.8MPa ASTM D-648 136 ℃ heat distortion temperature 0.5MPa ASTM D-648 172 ℃ Melting point ℃ ASTM D-2133 175 --- thermal conductivity ------ 0.37 W / mk linear thermal expansion coefficient of -40 ~ 29 ℃ ASTM D-696 10.4 10-5m / m ℃ linear thermal expansion coefficient of 29 ~ 60 ℃ ASTM D-696 12.2 10-5m / m ℃