Manhole cover material (Cast Iron Vs Ductile )
Manhole cover material (Cast Iron Vs Ductile )
(OP)
Hello Every one,
I want to give provide ductile iron cover for manholes in one project but the local specification refer to cast iron.. I think ductile iron cover is better, but I have to convince them..please let me know if you have any better reference material/specifications to help me in this case.
Regards,
I want to give provide ductile iron cover for manholes in one project but the local specification refer to cast iron.. I think ductile iron cover is better, but I have to convince them..please let me know if you have any better reference material/specifications to help me in this case.
Regards,





RE: Manhole cover material (Cast Iron Vs Ductile )
RE: Manhole cover material (Cast Iron Vs Ductile )
RE: Manhole cover material (Cast Iron Vs Ductile )
In Scandinavia (Norway) the official standard for (street) manhole covers describes ductile iron. I have never heard of problems with this material. The covers have to withstand frost, ice, snow and temperatures down to minus 30 deg C (and more), as well as summer temperatures up to 40 deg C and more on sumwarmed streets. Normal cast iron would be too brittle.
RE: Manhole cover material (Cast Iron Vs Ductile )
RE: Manhole cover material (Cast Iron Vs Ductile )
RE: Manhole cover material (Cast Iron Vs Ductile )
RE: Manhole cover material (Cast Iron Vs Ductile )
RE: Manhole cover material (Cast Iron Vs Ductile )
RE: Manhole cover material (Cast Iron Vs Ductile )
New York Manhole Covers, Forged Barefoot in India
http://www.nytimes.com/2007/11/26/nyregion/26manho...
RE: Manhole cover material (Cast Iron Vs Ductile )