Wrought iron

n. malleable form of iron that contains 0.2 % carbon and strong metal, metal used for creating chains and wires

Wrought iron is commercially pure iron, having a very small carbon content (not more than 0.15 percent), but usually containing some slag. It is tough, malleable and ductile and is easily welded. However, it is too soft for blades.
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Noun
1. iron having a low carbon content that is tough and malleable and so can be forged and welded
(hypernym) iron, Fe, atomic number 26
(hyponym) Swedish iron
(substance-meronym) pig iron

Iron relatively free from carbon and other impurities. Produced through the reduction of iron ore, or through the refining of cast iron.

n. เหล็กบริสุทธิ์ที่ดัดเป็นรูปร่างต่างๆ ได้ง่ายและทนทาน, (มักใช้ทำรั้วหรือประตูและอื่นๆ)