UNIT II FERROUS AND NON FERROUS METALS

1. HSLA STEEL
High Strength Low Alloy Steel

2. What are HSLA steels
• It is nothing but High Strength Low Alloy
Steels
• Also known as micro alloyed steels
PURPOSE: Weight reduction through increased
strength.
• About 0.20% Cu is added for Improve
Corrosion resistance

3. • High-strength low-alloy (HSLA) steel is a type of
alloy steel that provides better mechanical properties
and greater resistance to corrosion than carbon steel.
• HSLA steels vary from other steels in that they not
meet a specific chemical composition, but rather to
specific mechanical properties.

4. CHARACTERISTICS OF HSLA STEELS
• High yield strength
• Can be welded without becoming brittle
(Ductile also)
• Light weight
• High corrosion resistance
• They are ductile and machinable.

5. USES
• They are used in cars, trucks, cranes, bridges,
roller coasters and other structures that are
designed to handle large amounts of stress
areas
• HSLA steels are usually 20 to 30% lighter than
a carbon steel with the same strength.

6. HSLA STEEL----
- In Long Pipe Lines

7. ALLOYING ELEMENTS
• They have a carbon content between 0.05–0.25%
to retain formability and weldability.
• Other alloying elements include up to 2.0%
manganese and small quantities of copper, nickel,
niobium, nitrogen, vanadium, chromium, are added
for strengthening purposes.