Cast iron pipe DN80-800.
Standard: ISO 2531:1998, EN 545:2002, K9.
Zinc coating: at least 130gsm as per ISO 8179.
Standard of pipe: ISO 2531-1998, EN 545-2002, K9.
Effective length: 6m when using bulk shipment way or about 5.5m or 5.7m when in 20ft container shipment way.
Inner cement line: Portland cement line as per ISO 4179.
Zinc coating: at least 130gsm as per ISO 8179.
Bitumen painting: at least 70um as per ISO 8179.
Gaskets are NBR rubber, natural rubber, SBR rubber or EPDM rubber tightness ring as per ISO 4633.
High strength, lighter than gray iron, good corrosion resistance, no furring, small flow resistance, easy fixing, long life time.
Checked by automatic inspection equipment.
Composition:
C: 3.4-3.7%.
Si: 2.0-2.4%.
P: <0.08%.
S: <0.015.
Pull strength: >420MPa.
Yield: >10%.
Hardness: <230 HB.
Process and testing:
Blast furnace (analysis of raw materials test).
Mg treatment (micro and chemical composition test).
Pipe spinning (temperature test).
Heat treatment (micro structure, flattening test).
Zinc coating (thickness testing).
Dimensional checks (thickness and diameter testing).
Hydraulic test (pressure test).
Internal lining (thickness testing).
External coating (thickness test).
Mechanical joint pipe and fittings are also available.