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Guidelines on Hull Structure of Thermoplastic Vessels 2021 Table 2.2.1 (c) : Properties of HDPE Property Density Melt Mass Flow Rate Tensile Yield Stress Ultimate Tensile Stress Tensile Elongation at Yield Tensile Elongation at Break Tensile Creep Modulus Compressive Stress Shear Strength Flexural Strength Flexural Modulus Hardness Impact strength (drop test without notch) Notch impact strength (pendulum test with notch) Pore contents Impact tensile strength of aged material Viscosity Number (Reduced Viscosity) Water Absorption Properties of HDPE 0.946 to 0.972 0.030 to 10 (190°C/2.16 kg) min 17 min 24 1.0 to 27 10 to 1500 292 (After 1000 hrs) 20 18 40 750 as LDPE (1) as LDPE (1) as LDPE (1) as LDPE (1) as LDPE (1) 157.8 to 398.3 0.010 to 0.017 % (24 hrs) Unit g/cm3 g/10 min N/mm2 N/mm2 % % N/mm2 N/mm2 N/mm2 N/mm2 N/mm2 Shore D J/mm thickness Visual % of thickness Visual ml/g Test Method ASTM D792-20 ISO 1133-1:2011 ASTM D638-14 ASTM D638-14 ASTM D638-14 ASTM D638-14 ISO 899-1:2017 ASTM D695-15/ ISO 604:2002 ASTM D792-20 ASTM D790-17/ ISO 178:2019 ASTM D790-17/ ISO 178:2019 ISO 1628-3:2010 ASTM D570-98/ ISO 62:2008 (1) Test method, results and comments of referred material are to be applied as indicated in Tables 2.2.1 (a) and 2.2.1(b). Note: The information contained at the table above stated at 23 °C are typical values intended for reference and comparison purposes only. Above mentioned values to be used for design calculations are also to be agreed by IRS. Indian Register of Shipping IRS-G-DES-12 Page | 7PDF Image | Hull Structure of Thermoplastic Vessels 2021
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