This grade offers good bending and forming properties and is less sensitive to surface de-carburisation and resists distortion during heat treating. This grade of steel strips are not commonly used in India. Though we do not have this as a part of our inventory, but we do supply against specific requirements from customers. Minimum order quantity and lead time for delivery depends on size.
This grade of strip is used where toughness is required but elasticity is not important. Because of lower Carbon contents, it offers better forming and bending quality.
This grade offers reasonably good fatigue value and elastic limity after hardening and tempering and compares with C65, CK67 grades.
C75 Grade is known as known as Spring Steel Strip Annealed, Spring Steel Strip Unhardened, High Carbon Steel Strip or Cold Rolled Steel Strip.
GRADE | CARBON | MANGANESE | SILICON | SULPHUR | PHOSPHORUS | CR | Vanadium |
---|---|---|---|---|---|---|---|
c-45 | 0.40-0.50% | 0.00-0.90% | 0.10-0.35% | 0.05%MAX | 0.05%MAX | ||
C-55 | 0.50-0.6% | 0.00-0.90% | 0.35% MAX | 0.05%MAX | 0.05%MAX | ||
C-75 | 0.70-0.80% | 0.00-0.90% | 0.35% MAX | 0.05%MAX | 0.05%MAX | ||
C-80 | 0.75-0.85% | 0.00-0.90% | 0.10-0.35% | 0.05%MAX | 0.05%MAX | ||
50CrV4 | 0.45-0.55% | 0.50-0.80% | 0.10-0.35% | 0.05%MAX | 0.05%MAX | 0.9-1.2% | 0.1-1.2% |