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Product Details:
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| Thickness: | 0.1 To 6 Mm | Width: | 10 To 400 Mm |
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| Delivery Condition 1: | Cold Rolled + Hardened + Tempered | Delivery Condition 2: | Cold Rolled + Soft Annealed : G |
| Steel Number: | 1.1274 | Steel Grade: | Ck101 |
| Surface Condition: | Bright, Grey-blue, Polished, Polished And Colour-tempered | Form: | Steel Coils Strips |
| Standard: | DIN 17222 | ||
| High Light: | 1.1274 Cold Rolled Steel Strips,Ck101 Cold Rolled Steel Strips,DIN 17222 Spring Steel Coils |
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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.
Ck101 1.1274 steel is one of the higher carbon steels used for high hardness in the fully hardened condition. Low-alloy carbon steel for thermal improvement by oil hardening available in strips and thin cold-rolled sheets used for springs and leaf springs with small cross-sections. It is characterized by low hardenability, abrasion resistance and decarburization and oxidation tendency during heat treatment.
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 | |
| Ck101 | 1.1274 | CS 100 |
| Steel number | grade number | C | Si | Mn | P | S |
| Ck101 | 1.1274 | 0,95 to 1,05 | 0,15 to 0,35 | 0,40 to 0,60 | 0,035 | 0.035 |
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 |
| Ck101 | 1.1274 | 690 | 11 | 205 |
| Steel number | grade number | Tensile strength N/mm2 |
| Ck101 | 1.1274 | 1500 to 2100 |
| Steel number | grade number | Vickers hardness |
| Ck101 | 1.1274 | 445 to 620 |
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 |
| Ck101 | 1.1274 | 650 to 690 | 790 to 820 | 300 to 500 | 750 |
EN 10204/3.1 with all relevant data reg. chem. composition, mech. properties and results of testing.
Contact Person: Ms. Florence Tang
Fax: 86-731-89853933
