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Ck67 1.1231 Cold Rolled Spring Steel Strip

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Ck67 1.1231 Cold Rolled Spring Steel Strip

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Brand Name : Fushun

Model Number : Ck67 1.1231

Certification : ISO9001:2008

Place of Origin : China

MOQ : negotiable

Price : negotiable

Payment Terms : L/C, T/T, Western Union

Supply Ability : 40,000tons/year

Delivery Time : 15-30 days

Packaging Details : nylon/pallet/case

Grade : Ck67 1.1231

Feature : Cold Rolled

Shape : Steel Strip

Delivery condition 2 : Cold rolled + soft annealed : G

Steel Number : 1.1231

Steel Grade : Ck67

Surface Condition : bright, grey-blue, polished, polished and colour-tempered

Form : Steel Coils strips

Standard : DIN 17222

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DIN 17222 Ck67 1.1231 Cold Rolled Steel Strips for Springs

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.

Ck67 1.1231 Introduce

Ck67 1.1231 steel is an unalloyed medium carbon engineering steel which has 0.65%-0.72% Carbon. Ck67 steel with low hardening capacity designed for less loaded springs, periodically working for oil hardening

Ck67 1.1231 Dimensions and permissible deviations

Thickness: 0.1 to 4mm; Tolerances: +/- 0.008 to 0.11 mm

Width: 10 to 600mm; Tolerances: +/- 0.15 to 0.60mm

Ck67 1.1231 Equivalent Grade

Steel grade according to DIN 17 222 Comparable grade according to EURONORM 132
Code number Material number
Ck67 1.1231 1 CS67

Ck67 1.1231 Chemical composition

Steel number grade number C Si Mn P S
Ck67 1.1231 0,65 to 0,72 0,15 to 0,35 0,60 to 0,90 0.045 0,045

Ck67 1.1231 Treatment condition on delivery

Cold rolled + soft annealed : G

Cold rolled + hardened + tempered : H + A

Ck67 1.1231 Mechanical properties in the cold rolled + soft annealed condition G

Steel number grade number Tensile strength N/mm2 maximum Elongation at break (L = 80 mm) % minimum Vickers hardness maximum
Ck67 1.1231 640 12 190

Ck67 1.1231 Tensile strength in the cold rolled + hardened + tempered condition (H + A)

Steel number grade number Tensile strength N/mm2
Ck67 1.1231 1230 to 1770

Ck67 1.1231 Vickers hardness in the cold rolled + hardened + tempered condition (H + A)

Steel number grade number Vickers hardness
Ck67 1.1231 365 to 525

Ck67 1.1231 Surface condition

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.

Ck67 1.1231 Types of heat treatment

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
Ck67 1.1231 650 to 690 815 to 845 300 to 500 680

Ck67 1.1231 Acceptance testing and test certificates

EN 10204/3.1 with all relevant data reg. chem. composition, mech. properties and results of testing.


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1.1231 Cold Rolled Spring Steel Strips

      

Ck67 Cold Rolled Spring Steel Strips

      

Soft Annealed Spring Steel Strips

      
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