Plastsics Injection Materials-Category

Category: Physical Property Table (4)

 
                               

 Property

Test Mathod ASTM 

學Scientific Name

ACETAL

NYLON 6

PP

PE

Chemical Name

Properties

Chinese Name

塑膠鋼

尼龍

聚丙烯

聚乙烯

 

Chinese Name

POM

6

PP

PE

       Physical Properties

D792

  Density   g / cm 3 

1.41

1.14

0.91

0.93-0.96

D570

 Water absorption % 

0.22

1.80

<0.01

<0.01

 Mechanical Properties

D638

Tensile strength  

620

720-840

330

250

kg / cm2

D790

910

950-1200

420-560

70.0

Flexural strength

kg / cm2

D785

 Rockwell hardness 

D80-85

D75-80

D70-75

D65-70

D256

19.1

18.0-25.0

3.8

20.0

Izod impact strength  

kg cm / cm with notch

D1044

Wear rate

14.0

3.0-4.0

40.0

 

Taper wears mg / 1000

Times

 

  Friction coefficients 

0.18

0.37

0.30

0.17-0.08

Plastic Injection Materials—Categorized Physical Property Table (5)

 Property 

Test Method  ASTM 

Scientific Name

PVC

ABS

PC

PMMA

Chemical Name

Properties

Chinese Name

氯乙烯

 

 

壓克力

 

PVC

ABS

PC

PMMA

      物性 Physical Properties

D792

propertion    g / cm 3 

1.40-1.45

1.03

1.20

1.20

D570

 Water absorption % 

0.04-0.75

0.30

0.24

0.10-0.40

 

 Mechanical Properties

D638

  

420-530

440

645

350-640

Tensile strength

kg / cm2

D790

 

700-1130

700

960

900-1200

Flexural strength

kg / cm2

D785

 Rockwell hardness 

D80-85

D75-80

D75-80

D85-90

D256

1.0-3.0

21

12-14

1.0

Izod impact strength  

kg cm / cm with notch

D1044

Wear rate

 

19.0

13.0

 

Taper wears mg / 1000

times

 

Friction coefficients 

0.45

0.38

0.36

0.38

Plastic Injection Materials—Categorized Physical Property Table (6)

propertyitem 

POM 
plastic steel 

        PA 
nylon

PE 
polyethylene

PP 
polypropylene

proportion

1.42 

1.2 

0.94 

0.91 

hardness 

D85 

D80 

D68 

D75 

 Impact strength

2.0 

2.5 

16 

 acid /alkali degree

strong alkali 

 strong alkali

 weak acid alkali

 strong alkali weak acid

 friction coefficient

0.18 

0.15 

0.18 

0.37 

main features 

 high hardness, easy forming, wear resistant

 torque resistant, tough, wear resistant, oily for lubrication

not adhehive 
 impact resistant
wear resistant, non toxic 

strong hardness,
 easy to process,
 easy adhevive
smallest proportion

industry usage 

gear 
 guide wheel
 watch part

 silent gear
wear plate 
guides 
slideway 

food m/c parts 
wear parts 

chemical tank 
plating equipment 
water treatment 
equipment parts 

Plastic Injection Materials—Categorized Physical Property Table (7)

property

test method

unit

 

HDPE

PP

POM

NYLON 6

 

ABS

PVC

 

Physical Property

proportion

ISO 1183

g/cm3

 

0.95

0.92

1.39

1.13

 

1.04

1.36

water absorption

 

 

-

-

-

0.20

3.00

 

0.40

0.20

Mechanical property

yield strength

ISO 527

MPa

 

22

33

63

70

 

41

55

elastic strength

ISO 178

MPa

 

30

-

-

-

 

70

90

Xue’s degree

DIN 53505

 

 

62

70

85

77

 

70

82

gap impact strength

ISO 179

kJ/m2

 

20.00

13.00

6.00

> 3

 

37.00

3.00

elongation at break

ISO 527

 

 

≧ 600

≧ 50

31.00

≧ 50

 

45.00

33.00

coefficient of friction

DIN 53375

 

 

0.30

0.30

0.35

0.38

 

0.50

0.60

Heat property

linear thermal expansion coefficient

DIN 53752

K-1 x 10-4

 

1.55

1.50

1.10

0.85

 

1.00

0.80

thermal conductivity

DIN 52612

w / (m x k)

 

0.43

0.22

0.31

0.28

 

0.25

0.14

thermal deformation temperature

ISO 75

 

70

95

155

160

 

97

72

maximum temperature tolerance

-

 

90

100

110

100

 

70

60

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