Subject:Technical Parameter-HDPE Pipes & Fittings

Technical Parameter-HDPE Pipes & Fittings

Postdate:2007-01-04 01:26:10   Hits:1262

Physical and chemical characteristics of HDPE pipes

CHARACTERISTIC

REQUIREMENT

TEST PARAMETERS

TEST METHOD

Parameter

Value

Elongation at break

≥350%

TEST SPEED

100/50/25mm/min

ISO6259

Melt flow rate

Change of MFR by processing ±20%

Load

Test temp.

Time

5.0kg

190℃

10min

ISO1133:2005

Longitudinal reversion

≤3%

Test temp.

Time

100±2℃

See ISO2505

ISO2505

Oxidation induction time

≥20min

Test temp.

200℃

ISO11357

 

Mechanical characteristics of HDPE pipes

CHARACTERISTIC

REQUIREMENT

Material

TEST PARAMETERS FOR INDIVIDUAL TESTS

TEST METHOD

Hydrostatic stress (Mpa)

Test temp. (℃)

Test period (h)

No.of test pieces

Hydrostatic strength at 20℃

No failure during the test period

PE100

PE80

12.4 Mpa

10.0 Mpa

20

100

3

ISO1167-1

ISO1167-2

 

Hydrostatic strength at 80℃

PE100

PE80

5.4 Mpa

4.5 Mpa

80

165

3

ISO1167-1

ISO1167-2

 

Hydrostatic strength at 80℃

PE100

PE80

5.0 Mpa

4.0 Mpa

80

1000

3

ISO1167-1

ISO1167-2

Specification of HDPE pipes

NORMAL SIZE 

(DN/OD)

STANDARD DIAMETER RATE, SDR

SDR26

SDR21

SDR17

SDR13.6

SDR11

NORMAL WORKING PRESSURE, PN (Bar)

PE100

PN6

PN8

PN10

PN12.5

PN16

PE80

PN5

PN6

PN8

PN10

PN12.5

20

 

 

 

 

2.3

25

 

 

 

 

2.3

32

 

 

 

 

3.0

40

 

 

 

 

3.7

50

 

 

 

 

4.6

63

 

 

 

4.7

5.8

75

 

 

4.5

5.6

6.8

90

 

4.3

5.4

6.7

8.2

110

4.2

5.3

6.6

8.1

10.0

125

4.8

6.0

7.4

9.2

11.4

140

5.4

6.7

8.3

10.3

12.4

160

6.2

7.7

9.5

11.8

14.6

180

6.9

8.6

10.7

13.3

16.4

200

7.7

9.6

11.9

14.7

18.2

225

8.6

10.8

13.4

16.6

20.5

250

9.6

11.9

14.8

18.4

22.7

280

10.7

13.4

16.6

20.6

25.4

315

12.1

15.0

18.7

23.2

28.6

355

13.6

16.9

21.1

26.1

32.2

400

15.3

19.1

23.7

29.4

36.3

450

17.2

21.5

26.7

33.1

40.9

500

19.1

23.9

29.7

36.8

45.4

560

21.4

26.7

33.2

41.2

50.8

630

24.1

30.0

37.4

46.3

57.2

710

27.2

33.9

42.1

52.2

 

800

30.6

38.1

47.4

58.8

 

900

34.4

42.9

53.3

 

 

1000

38.2

47.7

59.3

 

 

1200

45.9

57.2

67.9

 

 

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