Stress Stain Relationship
Yield Point of Modern Steels
- In the past, a structural carbon steel designated as A36 and having yield stress of Fy = 36 ksi was the commonly used structural steel.
- Today, a steel having Fy = 50 ksi can be produced and sold at almost the same price as 36 ksi steel.
- Structural steels are generally grouped into several major ASTM classifications:
ASTM = American Society for Testing and Materials