Certificates: ISO 2531 and EN 545.
Class: K9.
Size: DN80 to 1200.
Inner cement line: Portland cement lining.
Standard of pipe: ISO 2531:1998, EN 545:2002 and K9
Effective length: 6m when using bulk shipment way or about 5.5or 5.7m when in 20ft container shipment way.
Inner cement line: Portland cement lining as per ISO 4179
Zinc coating: at least 130gsm as per ISO 8179.
Bitumen painting: at least 70μm 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, nice corrosion-resistant, no furring, small flow-resistant, easy fixing and long lifespan.
Checked by automatic inspection equipment.
Composition
C: 3.4 to 3.7%.
Si: 2.0 to 2.4%.
P: <0.08%.
S: <0.015%.
Pull strength: >420 MPa.
Yield: >10%.
Hardness: <230 HB.