|Thickness:||0.1 To 6 Mm||Width:||10 To 400 Mm|
|Delivery Condition 1:||Cold Rolled + Hardened + Tempered||Delivery Condition 2:||Cold Rolled + Soft Annealed : G|
|Steel Number:||1.1221||Steel Grade:||Ck60|
|Surface Condition:||Bright, Grey-blue, Polished, Polished And Colour-tempered||Form:||Steel Coils Strips|
1.1221 Cold Rolled Steel Strips,
Ck60 Cold Rolled Spring Steel Strips,
Ck60 1.1221 Cold Rolled Steel Strips
Cold rolled steel strip for springs is distinguished by high dimensional accuracy and good surface quality and, in the cold rolled + hardened + tempered condition (H + A) offers the possibility of achieving high values of hardness, tensile strength and elastic limit.
Ck60 1.1221 Carbon Steel is a high-carbon steel of low hardenability; it may be used in the as-rolled, annealed, normalized or liquid-quenched-and-tempered condition, depending on the desired properties. It is normally hardened by austenitizing and quenching in oil; however, it may be quenched in water if precautions are taken to prevent cracking. Its many uses include springs.
Thickness: 0.1 to 4mm; Tolerances: +/- 0.008 to 0.11 mm
Width: 10 to 600mm; Tolerances: +/- 0.15 to 0.60mm
|Steel grade according to DIN 17 222||Comparable grade according to EURONORM 132|
|Code number||Material number|
|Steel number||grade number||C||Si||Mn||P||S|
|Ck60||1.1221||0.57 to 0,65||0,15 to 0,35||0,60 to 0,90||0,045||0,045|
Cold rolled + soft annealed : G
Cold rolled + hardened + tempered : H + A
|Steel number||grade number||Tensile strength N/mm2 maximum||Elongation at break (L = 80 mm) % minimum||Vickers hardness maximum|
|Steel number||grade number||Tensile strength N/mm2|
|Ck60||1.1221||1180 to 1680|
|Steel number||grade number||Vickers hardness|
|Ck60||1.1221||350 to 500|
Strip to be supplied in the
1 cold rolled + soft annealed G or
2 cold rolled + soft annealed + cold rolled (G + K) condition
must have a bright, metallically clean surface.
Cold rolled + hardened + tempered (H + A) strip is supplied, as agreed at the time of ordering, with
1 grey-blue (GR),
2 bright (8K),
3 polished (P) or
4 polished and colour-tempered (P & AF) surface.
Approximate values for heat treatment and minimum hardness values in the hardened condition of cold rolled steel strips for springs
|Steel number||grade number||Annealed °C||Hardened in oil at °C||Tempered to °C||Vickers hardness in hardened condition minimum|
|Ck60||1.1221||650 to 690||825 to 855||300 to 500||670|
EN 10204/3.1 with all relevant data reg. chem. composition, mech. properties and results of testing.
Contact Person: Ms. Florence Tang