Sales Conditions

* Production Sizes and Tolerances in accordance with DIN 8077 / December 1997:

External Diameter dmm

 

Tolerance limit mm

Wall thickness S mm

Thickness  tolerance mm

 

Approximate unit weight kg/m

16

+ 0.3

2.7

+ 0.5

0.110

20

+ 0.3

3.4

+ 0.6

0.172

25

+ 0.3

4.2

+ 0.7

0.266

32

+ 0.3

5.4

+ 0.8

0.434

40

+ 0.4

6.7

+ 0.9

0.671

50

+ 0.5

8.3

+ 1.1

1.040

63

+ 0.6

10.5

+ 1.3

1.650

75

+ 0.7

12.5

+ 1.5

2.340

90

+ 0.9

15.0

+ 1.7

3.360

110

+ 0.9

18.3

+ 2.1

5.010

125

+ 1.2

20.8

+ 2.3

6.470

* Physical Properties:

Property

 

Test Method

 

Unit

 

Value

 

Density at 23C

ISOR 1183

g/cm3

0.90

Melt flow index

 

 

 

MFI 190C/5 kg

ASTM D 1238

g/10dak.

0.70

MFI230C/2.16kg

ISOR 1133

g/I0dak.

0,2-0,45

MFI 230C/5 kg

DIN 53 735

g/10dak.

0,6+1,2

Fusion point

 

C

146

* Thermal  Properties:

Property

 

Test Method

 

Unit

 

Value

 

Thermal Conductivity at 23C

DIN 52612

W/m.K

0.23

Specific heat at 23C

C

Kj/kg.K

1.73

Coefficient of linear

thermal expansion

 

DIN 53 752

 

K-1

 

1. 5-1. 8x1 0-4

Under weight

deformation temperature 1.8N/mm2

0.45 N/mm2

 

ASTM D 648

ISO 75

DIN 53 461

 

 

C

C

 

 

44

 72

Breaking temperature

ASTM D 746

C

-13

VICAT softening point

(1 kg.)

(5 kg.)

ASTMD 1525

ISO 306

DIN 53 460

 

C

C

 

130

 60

* Mechanical Properties:

Properties

Test Method

Unit

Value

Strength at flow limit at 23C

Speed of pulling: 50 mm/minute

                         100 mm/minute

 

 

 

N/mm2

N/mm2

 

22

23

Extension at flow limit at 23 C

Speed of pulling: 50 mm/minute

                         100 mm/minute

 

 

ISO R 527

(Sample No 1)

 

%

 %

 

 

17

 18

 

Break strength at 23C

Speed of pulling: 50 mm/minute

                         100 mm/minute

 

DIN 53455 (Sample No 1)

 

N/mm2

N/mm2

 

35

 34

Extension of break out at 23C

Speed of pulling: 50 mm/minute

                         100 mm/minute

 

 

%

%

 

>500

>500

Elasticity module at 23C

ASTM D 790

N/mm2

670

Bend module at 23C

DIN 53 447

N/mm2

185

 

Shore D hardness

 

ASTM D 740 ISO R 868,

 DIN 53 505

 

 

 

65

 

IZO D impact strength

(notched)at 23C

               at 0C

 

ISO R 180

ASTM D 256

 

j/m2

 j/m2

 

105

30

CHARPY impact strength

(notched)at 23C

               at 0C

 

DIN 53 453 ISOR 179

 

kj/m2

kj/m2

 

15

 35

CHARPY impact strength

(unnotched)at 23C

                   at 0C

 

DIN 53 453

ISO R 179

 

kj/m2

kj/m2

 

 

No break

Impact strength, at 0C

DIN 8078

Part 2

 

 

 

No break

* Operating life time in accordance with DIN 8078 / April 1996:

Temperature

 (C)

Life

(y)

Design stress

 (MPa)

20

50

9.5

40

50

6.8

60

50

4.7

70

50

3.2

80

25

2.5

95

5

1.85

* Break Strength for PP-R Pipes according to DIN 8078:

* The Comparison of the Failure Time (h) and the Design Stress (MPa) for the PP presure pipes at 20C and 60C:

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