Both of cast iron and cast steel are Fe-C alloys. As a result of the different content of carbon, silicon, manganese, phosphorus, sulfur as well as other chemical components, they use different metallographic structure and also show several mechanical residential properties and castabilities. It is generally considered that carbon web content above 2% is cast iron while consists of between 0.1-- 0.5% carbon is as cast steel. Allow's take a look at the distinction in between steel spreadings and also iron castings according to its category as well as applications.

Structure of fe

Cast Iron

Gray cast iron. High carbon content (2.7% ~ 4.0%). Gray cast iron is the most commonly made use of cast iron including flake graphite (accounting for more than 80% of the overall manufacturing of actors iron). Carbon is primarily in the form of flake graphite, grey tinted, provides reduced melting factor (1145 ~ 1250 ℃) as well as little contraction throughout solidification, near carbon steel in compressive toughness and hardness, great shock absorption, made use of for producing maker device bed, cyndrical tube, box as well as other structural components.

Vermicular cast iron. It obtained from grey actors iron after vermicular therapy. Its precipitated graphite is vermicular designed, between flake rock and also spheroid. Its chemical framework is similar to that of grey actors iron, its mechanical homes are similar to that of cast iron, and also its castabities are in between gray actors iron and nodular cast iron.

Can be used in making vehicles components.

Ductile iron. The nodular graphite acquired by spheroidization as well as shot type grey actors iron water is called ductile cast iron, which is a kind of high-strength cast iron with extensive residential properties close wldsteel.com to that of steel as well as has a vast application in commercial fields. It has greater toughness, far better durability and also plasticity than ordinary gray cast iron.

Made use of in the manufacture of inner combustion engines, car components and farming equipment.

Cast Steel

Cast steel is iron-carbon alloy with carbon content below 2.11%. Cast steel has good detailed efficiency, weld-ability and workability, but it has poor shake-suction and spreading performance contrasted to cast iron. Cast steel can be split right into cast carbon steel, cast low alloy steel and cast unique steel according to chemical component structure.

Cast carbon steel. Cast steel with carbon as the major alloying element and also a percentage of various other elements. It can be separated right into casting reduced carbon steel (having carbon less than 0.2%), casting moderate carbon steel (including carbon 0.2% ~ 0.5%), casting high carbon steel (having carbon more than 0.5%). Its strength as well as solidity boost with the boost of carbon web content. Cast carbon steel has a higher stamina, plasticity and durability, low cost, made use of in heavy equipment made use of to produce a huge tons of parts, such as rolling machine frame, hydraulic press base; manufacture of heavy influence bearing parts such as cushions, side frames, wheels and combinings on railway vehicles.

Cast low alloy steel. Cast steel consisting of manganese, chromium, copper as well as other alloying components (total amount less than 5%). It has higher impact durability as well as can acquire much better mechanical residential properties with warm therapy. Casting low alloy steel has far better efficiency than carbon steel, which can minimize the quality of components and also improve the life span.

Casting unique steel. Alloy cast steel improved for unique needs. It normally has a high amount of one or more alloying elements to acquire a specific building. As an example, high manganese steel containing manganese 11% ~ 14% can withstand effect wear, mainly made use of in mining equipment, building equipment wear components; All sort of stainless steels with chromium or chrome-nickel as the major alloying component are utilized for components that are rusted or work at heat over 650 ℃, such as valve body, pump, container or vapor generator shell of huge ability power plant for chemical market.

Generally, cast iron has lower elongation, contraction and also effect strength than cast steel ， its compressive toughness as well as seismic resistance are also far better than cast steel ； Cast iron is often cheaper while raw steel is a lot more expensive deo to more material expenses, power, and also labor required to create an end product. The main advantage of cast steel is the layout versatility, which permits it's ideal for intricate forms and also hollow cross-section parts. They have their own advantages as well as drawbacks, so which should be chosen that depends the application and their physical residential properties.