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Quick Details

  • Standard:AISI, ASTM, DIN, GB, JIS

  • Steel Grade:Q235B

  • Thickness:0.15-10mm, 0.15-4.00mm

  • Place of Origin:Hebei, China (Mainland)

  • Technique:Cold Rolled

  • Surface Treatment:Polished

  • Application:roller shutter door

  • Model Number:Spring Steel Strip

  • Brand Name:Dinghe

  • Width:8.0-300mm

  • Length:in coil

  • steel grade:CK45,CK50,CK55,CK67, CK75

  • surface treatment:Polished,Polish,tempered blue, yellow, green

  • edge:rounded,slit,sloped

  • heat treated:Hardened tempered,Annealed

  • hardness:H&T:40-55HRC

  • property:wear resistant

Packaging & Delivery

Packaging Details:Each bundle with anti-rust paper and light oil then wrapped in plastic film and put in 20ft container for standard sea worthy
Delivery Detail:30 days after the order confirmed


CK67 Mn high carbon steel strip rolling shutter spring

Hardened and Tempered   spring steel strip

Grade: ck60,ck67,ck75(SAE 1065, SAE 1070, SAE 1075) , 60Si2Mn, 50CrV4, stainless 420, 430


Hardness: 32-55hrc

Surface: gray blue, polished blue, bright, bright polished...

Edge: rounded, slit, both rounded

Coil weight:  as your requirement

Standard of surface: No flaw, burr, rust.

Yield Strees(Strength): 370-1175 N/mm2

Tensile Strength: 540-1275 N/mm2


1 Each coil is closely covered by plastic film.

2 Outer is compound paper packing.

3 Delivered in iron pallets.

Applications: spring for roller shutter,hand tools,construction tools, metal parts, auto parts....etc

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