ท่อเหล็กหล่อ Ductile ISO2531 K9 DN300 DN350

All specifications products can be customized according to customer requirements

Product Name

Ductile Iron Pipe

Size

Outside Diameter: 98mm-1255mm
Inside Diameter: 80mm-1200mm
Wall Thickness: 6mm-153mm
Length: 6m, cut to 5.7m, or as required.

Grade

K8, K9, K10, K11, K12, C25, C30, C40, etc.

Standard

ISO2531, EN545, EN598, etc.

Surface

External bitumen coating, or as required.

Internal coating

a). Portland cement mortar lining
b). Sulphate Resistant cement mortar lining
c). High-Aluminum cement mortar lining
d). Fusion bonded epoxy coating
e). Liquid epoxy painting
f). Black bitumen painting

External coating

a). zinc+bitumen(70microns) painting
b). Fusion bonded epoxy coating
c). Zinc-aluminum alloy +liquid epoxy painting

Quality Control

100% inspection + professional Lab test

Certification

ISO, CE, BSI, WRAS, SGS, etc.

Package

Standard export package, or as required.

Payment

T/T, L/C, Western Union, etc.

Application

Water supply project, drainage, sewage, irrigation, water pipeline, etc.

Nominal

Size

DN

Minimum Tensile

Strength, Rm

Mpa

Minimum 0.2%

Proof Stress, Rp0.2

Mpa

Minimum Elongation

After Fracture,A

%

Hardness

HB

80-1000

≥420

≥300

≥10

≤230

1100-2600

≥7

Note:

1. By Agreement Between Manufacture And Purchaser, The 0.2% Proof Stress (Rp0.2) May Be Measured.

It Shall Be Not Less Than:

· 270 MPa When A≥12% For DN 40 To DN 1000 Or A≥10% For DN ＞1000;

· 300 MPa In Other Cases.

2. DN 40 To DN 1000, The Minimum Elongation After Fracture Shall Be 7% For Thickness Classes Over K12.

Nominal Size(DN)

Hydrostatic Works Test Pressure (Bar)

80-300

50

350-600

40

700-1000

32

1200-2000

25

2200-2600

18

DN

Nominal Value

Tolerance  1)

Maximum Crack Width And Radial Displacement

80-300

4

-1.5

0.4

350-600

5

-2

0.5

700-1200

6

-2.5

0.6

1400-2000

9

-3

0.8

1）A Negative Tolerance Only Is Given.

Note: Pipe End May Have A Chamfer Of Maximum Length 50 Mm.

External Coatings

Internal Coating(Linings)

Coating Of The Joint Area

- Metallic Zinc With Finishing Layer, In Accordance With ISO 8179-1;

- Zinc Rich Paint With Finishing Layer, In Accordance With ISO 8179-2;

- Epoxy Coating, In Accordance With EN 14901;

- Polyethylene Sleeve, In Accordance With ISO 8180;

- Alloy Of Zinc And Aluminum With Or Without Other Metals, Having A Minimum Mass  Of 400 G/M2, With Finishing Layer;

- Extruded Polyethylene Coating In Accordance With EN 14628;

- Polyurethane Coating In Accordance With EN 15189;

- Cement Mortar Coating In Accordance With EN 15542;

- Adhesive Tape;

- Portland/Blast Furnace Slag/Sulphate/ High Aluminum Cement Mortar, In Accordance With ISO 4179;

- Cement Mortar Lining With Seal Coat, In Accordance With ISO 16132;

- Epoxy Coating, In Accordance With EN 14901;

- Polyurethane Lining In Accordance With EN 15655;

- Epoxy Coating;

- Polyurethane Coating.