Types of Steel and Alloys 🛢️
1. Plain Carbon Steel 🔩
| Type |
Carbon Content (%) |
| Dead Mild Steel |
0 - 0.05 |
| LCS/Mild Steel |
0.05 - 0.25 |
| MCS |
0.25 - 0.8 |
| HCS |
0.8 - 2.1 |
2. Alloy Steel 🏗️
Stainless Steel 🍽️
- Also known as Corrosion-Resistant Steel.
- The principle alloying element is chromium; 4-6% offers good corrosion resistance.
- When containing up to 12% chromium, it's called 'True Stainless Steel'.
Types of Stainless Steel:
A. Ferritic SS
B. Austenitic SS
C. Martensitic SS
D. Duplex SS
High-Speed Steel (HSS) 🏎️
- Possesses 'Red Hardness,' the ability to retain hardness at elevated temperatures.
- Composition: Tungsten : Chromium : Vanadium = 18 : 4 : 1
- Carbon content = 0.7%
3. Copper Alloys 🛠️
A. Brass = (Cu + Zn)
B. Bronze = (Cu + Sn)
4. Nickel Alloy ⚙️
- Composition: Iron + Chromium
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