Steel Strips for Rolling Shutter Springs: Strength and Flexibility Explained
Rolling shutter springs are one of the most important components in shutter doors, ensuring smooth opening and closing cycles. At the heart of these springs lies the spring steel strip — specifically engineered for strength, elasticity, and durability. At Jiaxiao MTC, we supply C67S, C75S, and C80 spring steel strips widely used in shutter spring […]
C75S Spring Steel: Comprehensive Analysis of Properties, Processing & Application Guide
I. Material Overview & Standardization C75S is a high-carbon, non-alloy spring steel standardized under the German DIN EN 10132-4 specification. It corresponds to Chinese GB/T 75, American AISI 1075, and Japanese JIS S75CM standards. Its core characteristics are a high elastic limit and excellent fatigue resistance. Under comparable surface conditions and full hardenability, its fatigue […]