POM HC750旭化成---POM is a kind of engineering plastics with excellent comprehensive properties.
It can be widely used to replace steel, copper, zinc, aluminum and other metal materials to do many parts. It is one of the world's five major engineering polyamide, polycarbonate, paraformaldehyde, polyester and polyphenylene ether.
POM is the only one of the five major engineering plastics that can be manufactured in large quantities based on a variety of raw material routes and starting from the most source. It is a deep processing product of methanol and an extremely important downstream product of carbon chemistry in the coal chemical product chain. POM is an important general-purpose thermoplastic engineering plastics. Due to its high tensile strength, low density, self-lubricating, corrosion resistance, weather resistance and other characteristics, POM is a high-tech, high investment, high added value "three high" products, its production and processing has high technical content and economic added value.
HC750
POM | 聚甲醛#赛钢
日本旭化成
Hc750 physical property table
Basic performance rating unit test method
Melt flow rate
30 g/10min ASTM D1238
(190℃/2.16kg) 30 g/10min ISO 1133
Water absorption (24 hr) 0.2% ASTM D570
Test method of physical performance rating unit
Specific gr***ity 1.41 g / cm ASTM D792, ISO 1183
Molding shrinkage
(Flow) 1.6-2 % ASTM D955,ISO 294-4
(Across Flow) 1.6-2 % ISO 294-4
Mechanical properties - rating units - Test methods
Tensile modulus 3200 MPa ISO 527-2
Yield tensile stress 71 MPa ISO 527-2
Tensile stress 65 MPa ASTM D638
elongation at break
50 % ASTM D638
45 % ISO 527-2
Bending modulus 2990 MPa ASTM D790
Bending strength: 98 MPa ASTM D790
Charpy notched impact strength (23 ℃) 5 kJ / M ISO 179 / 1ea
Izod notched impact strength: 59 J / M ASTM D256
Thermal performance rating unit test method
Hot deformation temperature
(0.45MPa,unannealed) 163 ℃ ASTM D648
(0.45MPa,unannealed) 161 ℃ ISO 75-2/B
(1.8MPa,unannealed) 124 ℃ ASTM D648
(1.8MPa,unannealed) 107 ℃ ISO 75-2/A
Flame retardant grade HB UL 94