Material Comparison
Product Info
Product Name
Brand Name
Usages
Properties
Certificates
POM S731 TORAY JAPAN
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UL
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Plastic Datasheets
physical property
Test Condition
Test Method
Unit
POM/TORAY JAPAN/S731
Melt mass flow rate
ASTM D1238/ISO 1133
g/10min
2
Melt mass flow rate
190℃
ASTM D-1238
g/10min
2
Shrinkage rate
垂直
东丽法
%
1
Shrinkage rate
横向
东丽法
%
1
Water absorption rate
ASTM D-570
%
0
Water absorption rate 23 ℃/24h
ASTM D570/ISO 62
%
0
Mechanical performance
Test Condition
Test Method
Unit
POM/TORAY JAPAN/S731
IZOD cantilever impact strength
有切口
ASTM D-256
J/m
5
IZOD cantilever impact strength
无切口
ASTM D-256
J/m
6
elongation at break
ASTM D638/ISO 527
%
5
shear strength
ASTM D-732
Mpa
5
Insulation strength
3mmt
ASTM D-149
MV/m
1
Flexural modulus
ASTM D-790
GPa
2
Flexural strength
ASTM D-790
Mpa
9
Tensile impact strength
ASTM D-1822
KJ/m
1
tensile strength
ASTM D-638
Mpa
6
tensile strength
ASTM D638/ISO 527
kg/cm²(MPa)[Lb/in²]
6
elongation
断裂
ASTM D-638
%
5
Bending modulus
ASTM D790/ISO 178
kg/cm²(MPa)[Lb/in²]
2
bending strength
ASTM D790/ISO 178
kg/cm²(MPa)[Lb/in²]
9
Charpy impact strength
ASTM D256/ISO 179
kg·cm/cm(J/M)ft·lb/in
5
Thermal performance
Test Condition
Test Method
Unit
POM/TORAY JAPAN/S731
Hot deformation temperature
1.82MPa
ASTM D-648
°C
1
Hot deformation temperature
ASTM D648/ISO 75
℃（℉）
1
Hot deformation temperature
ASTM D648/ISO 75
℃（℉）
1
Hot deformation temperature
0.45MPa
ASTM D-648
°C
1
melting point
DSC
°C
1
Linear coefficient of thermal expansion
ASTM D696/ISO 11359
mm/mm.℃
1
Electrical performance
Test Condition
Test Method
Unit
POM/TORAY JAPAN/S731
Leakage current path formation index
IEC(CTI)
V
6
Arc resistance
ASTM D-495
sec
＞
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