it is old denomination for spheroid cast iron, see below for actual denominations:
FGS 400-15 is Franch ductile iron grade. It is equal to Germany grade EN-GJS-400-15. As for the detail properties and requirements to this material, please refer to the following link "EN-GJS-400 Ductile Iron". Dandong Foundry has elaberated the chemical and physical properties, advantages and problems for this material in this article.
If the pipe is No Hub cast Iron you can use a mission cap If the cast Iron is bell then you caulk in a cast iron plug If the cast iron is a spigot end you get a transition coupling either standard weight CI or extra heavy and then use a cast iron cap in the transition coupling
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Cast iron is, as the name implies, "iron" which has been "cast", or melted and poured into a mold. The material is usually not really pure iron but rather an alloy including carbon and (often) silicon.
A cast iron tub is about 325lbs. steel is about 75lbs. Tap on tub if it sounds solid it is cast iron.
Cast Iron does not rust or corrode as steel can
Forgot
No. Fgs.
Well, darling, "fgs vior Italy 925" is most likely referring to a piece of jewelry. "925" indicates that the piece is made of sterling silver, and "fgs vior" could be the brand or designer. So, in a nutshell, it means you've got yourself a fancy Italian silver accessory on your hands.
fgs
Hazardous waste
Cast iron is fabricated in blast furnaces where iron ore is reduced by coke to cast iron, according to Wikipedia.
no cast iron is more superior than foregn iron
When Pig Iron is melted and recooled it is called Cast Iron
Grey cast ironWhite cast ironMalleable cast ironDuctile cast iron
During the manufacture of Cast Iron, an intermediate product is Pig Iron. Further processing results in Cast Iron.
Almost everything that is called 'cast' such as; cast iron pots, cast iron centrplate (some boats use them). Until relatively recently, all engine blocks were cast iron. Most diesel engines are still cast iron.
Sam Swank - Wake Forest