EN/DIN 55Cr3 SPRING STEEL FLAT BAR is a kind of pre-hardened material well suited for fabrication requiring shaping by blanking, bending, drawing, extrusion and swaging. Spring steel DIN 17221 55Cr3 allows for closer dimensional tolerances and improved finish and available in several grades. Grade selection is important when considering higher levels of wear resistance.
|Standard||Grade||Chemical composition (%)|
Quenching temperature: 830℃-860℃, oil cooling
Tempering temperature: 460℃-510℃
Large spring under heavy load and high stress condition, like large-section leaf spring and large- diameter sprial spring of automobile and tractors.
Third Party :ABS ,DBV ,BV,GL,CCS,LR,RINA,KR,NK,CE,SGS,IKE,IEI or other quality department
Delivery time:5-30 days
Trade Term: FOB ,FCA,CFR,CIF
Payment Term: T/T or L/C.
Sample Service, Third party inspection
Packing Type: Loose in Bulk, in bundles, seaworthy packing
Country of Origin: China
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