oil pipe

タイトルまたは説明

1) The standard of pipe: ISO ***1 - ***8, EN*******2 , K9

2) Effective length: 6M when using bulk shipment way, or about 5.5M or 5.7M when in *0' container shipment way

3) Inner cement line: Portland cement lining as per ISO***9

4) Zinc coating: at least **0gsm as per ISO ***9

5) Bitumen painting: at least *0um as per ISO ***9

6) Gaskets are NBR rubber, natural rubber, SBR rubber or EPDM rubber tightness ring as per ISO***3

7) DN *0 - 1,**0 mm

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

9) Checked by automatic inspection equipment

*0) Composition: a) C: 3.4 - 3.7% b) Si: 2.0 - 2.4% c) P:

*4) 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)

 h) Internal lining (Thickness testing)

 i) External coating (Thickness test)
Packing: in bulk or container