The high carbon rolling shutter spring steel strip is manufactured by continuous heat treatment furnace and oil quenching, can reach required hardness through annealing, tempering and hardened. Those strips are supplied with different options, such as cutting edge, round edge or dressed. Surface includes matt finish (untreated), polished, bright, blue finish. With great mechanical properties, it can be easily formed and processed as blades, rolling shutter springs for window or door, trowels.
Siffar
●Product name: CK67 C67 C75 CK75 C80 Rolling Shutter Spring Steel Strip hardened and tempered
●Thickness:1.0 mm to 1.6 mm
●Width: 35 mm to 80 mm
●Hardness: 44 – 46 HRC; 46 – 48 HRC
●Surface: blue, polish blue
●Conditions: Taurare & Tempered, Anne
Production condition:
Cold rolled
Spheroidized Annealed
Hardened and tempered
Normally grade of the material based on BS, AISI ,IN, DIN, and JIS standard
CS50, CS55, CS60,CS67,CS75,CS85,CS95, C75CR1,SK4,SK5,SK85, 51CRV4, 60SI2Mn, and 420j2 so on
Material Apprication:
Agriculture tool
Hand tools
Building plaster tools( trowels, spatulas, scrapers and putty knives)
Stamping parts
Automotive components
Textile tools
Band saw blades
And garage rolling shutter doors spring so on
