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Factory price wholesale manufacture high quality POM pulley wheel delrin for sale
POM pulley wheel :
POM(Polyformaldehyde), is a engineering plastics of non-side-chain, high density, high crystalline and linear polymer, which is praised “Plastic Steel”, and has comprehensive excellent performances, such as: wear-resistance, high hardness, anti-impregnant, good rigidity (Tensile modulus of elasticity), chemical stability, isolation resistance and dimensional stability. POM has widely applied in Automobile industries, electronic and electric products, commodity, pipeline & fittings, exact apparatus and so on, which can be instead of the bronze, Zinc, tin and other metals.
Advantages:
1. professional free design
2. OEM&ODM suport
3. low MOQ
4. fast delivery
5. free sample
6. own factary
Main Properties of POM:
Property |
Item No. |
Unit |
POM-C |
POM-H |
POM-H+PTFE |
|
Mechanical Properties |
1 |
Density |
g/cm3 |
1.41 |
1.43 |
1.50 |
2 |
Water absorption(23℃ in air) |
% |
0.20 |
0.20 |
0.17 |
|
3 |
Tensile strength |
MPa |
68 |
78 |
55 |
|
4 |
Tensile strain at break |
% |
35 |
35 |
10 |
|
5 |
Compressive stress(at 2%nominal strain) |
MPa |
35 |
40 |
37 |
|
6 |
Charpy impact strength (unnotched) |
KJ/m2 |
≥150 |
≥200 |
≥30 |
|
7 |
Charpy impact strength (notched) |
KJ/m2 |
7 |
10 |
3 |
|
8 |
Tensile modulus of elasticity |
MPa |
3100 |
3600 |
3200 |
|
9 |
Ball indentation hardness |
N/mm2 |
140 |
160 |
140 |
|
|
10 |
Rockwell hardness |
- |
M84 |
M88 |
M84 |
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