Engineering English
Steel
Materials Engineering · Last updated: July 30, 2026 · How this entry was written
Definition: An iron-based alloy containing up to roughly two percent carbon together with other deliberate additions. Its combination of strength, ductility, and low cost makes it the dominant structural metal in engineering.
Example in context
“The bridge girders were fabricated from structural steel, which offered the yield strength and weldability the erection schedule demanded on site.”
“Köprü kirişleri, montaj programının sahada gerektirdiği akma dayanımını ve kaynaklanabilirliği sunan yapısal çelikten imal edildi.”
Where engineers use it
Steel appears in structural design, machine components, pressure vessels, and tooling. Engineers must know its grades and heat-treatment response to specify strength, toughness, and weld procedures correctly, because substituting the wrong grade can cause brittle failure in service.
Practice: can you use “Steel” at work?
During a design review a junior engineer must justify choosing steel over aluminium for a heavily loaded crane boom, comparing stiffness, fatigue behaviour, cost, and fabrication constraints for the client.
Show a model answer
“This member is rolled steel, so we use its published yield strength.”
“Steel” in 21 languages
| English | Steel |
|---|---|
| Turkish | Çelik |
| French | Acier |
| German | Stahl |
| Spanish | Acero |
| Chinese | 钢 |
| Arabic | الفولاذ |
| Portuguese | Aço |
| Russian | Сталь |
| Japanese | 鋼 |
| Italian | Acciaio |
| Vietnamese | Thép |
| Hindi | इस्पात |
| Thai | เหล็กกล้า |
| Indonesian | Baja |
| Korean | 강 |
| Bengali | ইস্পাত |
| Dutch | Staal |
| Swedish | Stål |
| Finnish | Teräs |
| Ukrainian | Сталь |
Frequently asked questions
What does Steel mean in engineering?
An iron-based alloy containing up to roughly two percent carbon together with other deliberate additions. Its combination of strength, ductility, and low cost makes it the dominant structural metal in engineering. In Materials Engineering, the term carries a usage-frequency rating of 10/10 in the Engineering English library.
How do you pronounce Steel?
Steel is pronounced /stiːl/ (IPA). The Engineering English app plays audio for the term and checks your pronunciation with speech recognition.
How is Steel used in a sentence?
Example from an engineering context: “The bridge girders were fabricated from structural steel, which offered the yield strength and weldability the erection schedule demanded on site.”
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