galvanized steel pipe

galvanized steel pipe,qualitified

Ductile iron pipes used for drinkable water supply and sewage system available , products standards conform to ISO2531 ,EN545

pipes , ductile iron pipe

Specifications:

1) The standard of pipe: ISO 2531 - 1998, EN545-2002 , K9

2) Effective length: 6M when using bulk shipment way, or about 5.5M or 5.7M whenin 20' container shipment way

3) Zinc coating: at least 130gsm as per ISO 8179

4) Gaskets are NBR rubber, natural rubber, SBR rubber or EPDM rubber tightness ring as per ISO4633

5) DN 80 - 1,600 mm

6) High strength, lighter than gray iron, good corrosion resistance, no furring,small flow resistance, easy fixing, long life time

7) Checked by automatic inspection equipment

8) Composition: a) C: 3.4 - 3.7% b) Si: 2.0 - 2.4% c) P: <0.08% d) S: <0.015

9) Pull strength: >420MPa

10) Yield: >10%

11) Hardness: <230HB

12) K type mechanical joint with flange and bolts available

13) Process and testing: a) Blast furnace (Analysis of raw materials test ) b) Mg treatment (Micro & chemical composition test) c) Pipe spinning (Temperature test) d) Heat treatment (Micro structure; Flattening test) e) Zinc coating (Thickness testing) f) Dimensional checks (Thickness & Dia. testing) g) Hydraulic test (Pressure test)

galvanized steel pipe