1.3*45mm Rolling Shutter Spring Blue Steel Strips

• After-sales Service: Yes
• Warranty: Yes
• Standard: ASTM, GB
• Certification: ISO
• Surface Treatment: Polished
• Technique: Cold Rolled
• Model NO.: Cgood2233
• Application: Rolling Shutter Springs
• Edge: Slit edge
• Stock: Not Stock
• Product Name: Sk75 High Carbon Steel Strips for Rolling Shutters
• Thickness: 1.0-1.4mm
• Coil Weight: 150-250kgs
• Surface: Blue Waxed
• MOQ: 300kgs
• Delivery Times: 15-28days
• Package Size: 800mm*800mm Pallet
• Transport Package: Sea Worthy Package
• Specification: Thickness: 1.0mm-1.4mm *Width: 30mm-80mm
• Trademark: Cgood
• Origin: Jiangxi
• HS Code: 72269200
• Production Capacity: 800ton

Product Description

Product name	rolling shutter spring steel strips
Material	51Crv4,SK75,SAE1050,SAE1055,SAE1075,G80,High carbon steel strip,Cold rolled tempered steel
Hardness	45-63HRC for hardened and tempered conditions.
Size	thickness 0.08mm-3.00mm, Width:2mm-300mm
Color	blue, bright, white, nature, polished
Edge	round, slit both sides, one side slit, the other side slit
Tolerance	thickness+/-0.01mm max; Width:+/-0.05mm max.
Application	rolling shutter springs

Our factory manufacture and supply high carbon steel for rolling shutter steel strips.
Our outstanding production line

Hardening and Tempering is the normal process that strengthens steel strips through a controlled heating
and cooling process. The hardening process involves heating the steel strip to above the critical transformation
temperature for the given grade and then rapidly cooling. The steel strip in this condition is extremely brittle and
requires further treatment in the tempering. Then strips are reheated to a lower temperature and holding it at the
given temperature for a given period of time. This process is done in an inert atmosphere to avoid oxidation.
This type of steel strip has a high degree of toughness and has excellent spring properties.




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