condition assessment of ductile iron pipe

DUCTILE IRON PIPES

condition assessment of ductile iron pipe

1976

 

Ductile Iron Pipes Tubemakers Yennora

condition assessment of ductile iron pipe
condition assessment of ductile iron pipe
condition assessment of ductile iron pipe

Ductile Iron is a cast iron in which graphite is present as round “balls” or spheroids – hence, the alternative name of spheroidal graphite cast iron. It is more “steel-like” with its mechanical properties, exhibiting some degree of ductility and toughness.

The pipe is also manufactured by pouring cast iron into water-cooled steel mould, producing a white cast iron, which requires further annealing. Large diameter pipes can be produced using sand moulds.

The pipes are invariably thinner than grey cast iron pipes, spun factory-lined, and protected with a range of external coatings, depending upon which standard they were manufactured to.

Ductile Iron Microstructure

condition assessment of ductile iron pipe

Simulated spheroid of graphite under stress

condition assessment of ductile iron pipe
condition assessment of ductile iron pipe

1949

 

First Commercial Ductile Iron production