hardened steel strip:rolling shutter spring
1.standard:AISI,DIN,GB,JIS
2.steel grade:CK45/CK50/CK60/CK67/CK70,50crv4,3Cr13,6Cr13 etc.
3.width:8mm-180mm
4.thickness:0.2.-3.0mm
5.Length:1245m
6.surface:polished, blak, bright,grey,etc.
7.Hardness :30-52 HRC for hardened&tempered treatment,21-28 HRC for cold rolled, below 20HRC for anneal-up to customer's requirements
8.edge:slit,rounf,squre edge.
9.packing:each bundle with anti-rust paper and light oil then wrapped in plastic film and put in 20ft container for standard sea worthy.
10.application:for rolling shutter springs, tools, trowels, saws, washers for automoblies etc.
11.flat surface and uniform hardness.
1.standard:AISI,DIN,GB,JIS
2.steel grade:CK45/CK50/CK60/CK67/CK70,50crv4,3Cr13,6Cr13 etc.
3.width:8mm-180mm
4.thickness:0.2.-3.0mm
5.Length:1245m
6.surface:polished, blak, bright,grey,etc.
7.Hardness :30-52 HRC for hardened&tempered treatment,21-28 HRC for cold rolled, below 20HRC for anneal-up to customer's requirements
8.edge:slit,rounf,squre edge.
9.packing:each bundle with anti-rust paper and light oil then wrapped in plastic film and put in 20ft container for standard sea worthy.
10.application:for rolling shutter springs, tools, trowels, saws, washers for automoblies etc.
11.flat surface and uniform hardness.