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109 Chemical-resistance Creep Property Basic Property Type Item Chemical Pipe General Pipe Tensile strength (MPa) 58.7 57.5 Extension Ratio (%) 182 186 Izod Impact Value (kJ/m2) 7.5 6.5 Vicat Softening Temperature (「ェC) 84.0 83.7 Type Size Chemical Pipe General Pipe VP50 10.0 9.2 VP100 8.4 6.8 VP200 6.8 5.4 Hydrochloric acid 35%, 50°C、12 days of impregnation Circumferential stress 12.5MPa, 60°C Weight change (Hydrochloric acid 35%, 50°C) Weight change (Nitric acid 65%, 50°C) Effusion of hydrochloric acid is seen with the general pipe but completely free from it with the chemical pipe. General Pipe Chemical Pipe Solution contact face Solution contact face 500 μm 500 μm Weight change ratio Weight change ratio 3.0 2.5 2.0 1.5 1.0 0.5 0.0 1.2 1.0 0.8 0.6 0.4 0.2 0.0 Breakage time (hr) 0 10 20 30 40 50 60 0 10 20 30 40 50 60 Impregnation days (days) Impregnation days (days) Chemical Pipe Chemical Pipe General Pipe General Pipe 0 Chemical Pipe ISO1167 standard value 200 400 600 800 1000 1200 1400 1600 Short-Term Burst Pressure Test Notes: Various fittings to connect to chemical pipes are conventional TS fittings, but they have the equivalent chemical-resistance to chemical pipes. (Unit: MPa) Hydrochloric acid 35%, 50°C、12 days of impregnation Circumferential stress 12.5MPa, 60°C Weight change (Hydrochloric acid 35%, 50°C) Weight change (Nitric acid 65%, 50°C) Effusion of hydrochloric acid is seen with the general pipe but completely free from it with the chemical pipe. General Pipe Chemical Pipe Solution contact face Solution contact face 500 μm 500 μm Weight change ratio Weight change ratio 3.0 2.5 2.0 1.5 1.0 0.5 0.0 1.2 1.0 0.8 0.6 0.4 0.2 0.0 Breakage time (hr) 0 10 20 30 40 50 60 0 10 20 30 40 50 60 Impregnation days (days) Impregnation days (days) Chemical Pipe Chemical Pipe General Pipe General Pipe 0 Chemical Pipe ISO1167 standard value 200 400 600 800 1000 1200 1400 1600 Technical Document