Plastic Engineering POM Bar 70mm x 1000mm

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Product Overview

Description



Product Description


Polyoxymethylene, commonly known as POM, it is a thermoplastic engineering plastics  with high melting point and high crystallinity, a yellowish or white crystalline polymer with smooth and dense surface. According to the chemical structure of molecular chain, it can be divided into polyformaldehyde copolymer and polyformaldehyde homopolymer. 

Comapring the properties of copolymer and homopolymer, some properties of copolymer are superior to homopolymer such as low melting point, thermal stability, chemical resistance, liquidity, hydrolysis resisitance, alkali resistrance, thermal oxidization demotion and superior process ability. However, some properties of homopolymer are better than copolymer including high crystallinity, high creep, lower thermal expansion, abrasion resisitance, good mechanical strength, high rigidity and distortion temperature.

Our company can pruduce high quality POM-C rods and POM-H rods.

Our POM rods and sheets have Good roundness and straightness are very suitable for automatic lathe processing, and have good dimensional stability.























JG-POM PHYSICAL PROPERTY TABLE
Content/Feature/Property
Test method
Unit
Value





Mechanical property
Tensile strength
ISO 527-1, 2
Mpa
57
Bending strength
ISO 178
Mpa
76
Bending tensile stress
ISO 527
Mpa
68/-
Stretching strain at break
ISO 527
%
35
Tensile modules of elasticity
ISO 527
Mpa
3100
Compressive stress under 1% and 2% normal strain
ISO 604
Mpa
19/35
Pendulum impact test
ISO 179/1eA
kj/m2
8.6
Rockwell hardness
HR
L97


Physical property
Density
ISO 1183
g/cm3
1.41
Water absorption (23℃ water soak for 24 hours)
ISO 62
%
0.22
Coefficients of linear thermal expansion (23-100℃ average value)
m/(m.k)
110×10-5
Flammability (UL)
UL94
HB

Heat resistance
Melting point
165
Temperature resistance (continuous)
105
Temperature resistance (short time)
140


Insulating property
Dielectric strength
ISO 60243
kv/mm
20
Volume resistance
ISO 60093
Ω·cm
1O14
Surface resistance
ISO 60093
Ω
1O16
Relative permittivity -100HZ/1MHZ
ISO 60250
3.8/3.8



Chemical property
Acid resistance
-
Alkali resistance
+
Carbonation resistance
+
Aromatic compounds resistance
+
Ketone resistance
+

Other
Adhesion
+
Friction coefficient
0.32
Food contact
+


Remark:

1.Above data is only for reference.It may vary according to different processing method and sample.

2.These data can't be simply transferred to the finished parts.The applicability of materials for specific applications should be testes by the processor and user.

3.These technical parameters are used as a help.They do not represent a promise of performance.

4.Above specification "+" represents positive, "-" represents negative, "0" represents it depends.      





Widely used for sliding and rotating machinery, precision components, gears and bearings in automotive, electronics, garment, medical care, machinery and sports apparatus.





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Processing Guide






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Packing & Delivery




Packing

Rods: Wooden pallet, wooden case or custom
Sheets: Wooden pallet or custom

Delivery

Shpping method: Sea or as per customer's requirement



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0.0294 s.