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255 جودة مواصفات الورقة
High strength steels for cold forming
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Flat / Cold Rolled
Cold rolled coils or flat steel products are produced by rolling hot rolled flat steels without a heat treatment operation in a thickness range of 0.20 to 2.00mm. While the product’s physical properties are all homogeneous along the strip, surface flatness, width and thickness values have fulfilled expectations at the top level.
High strength steels for cold forming
التركيب الكيميائي (%)
| المعيار المكافئ | رقم جودة إرديمير | Cmax. | Mnmax. | Pmax. | Smax. | Simax. | Almax. | Nbmax. | Timax. | |
|---|---|---|---|---|---|---|---|---|---|---|
| المعيار | جودة | |||||||||
| EN 10268:2006+A1:2013 | HC340LA (MOD) | 255 | 0.12 | 1.50 | 0.03 | 0.025 | 0.50 | 0.015 | 0.09 | 0.15 |
- Chemical composition is not specified in customer specification. Limits given in this table are based on Erdemir practice for reference.
الخواص الميكانيكية
| المعيار المكافئ | رقم جودة إرديمير | Re [N/mm2] | Rm [N/mm2] | A(%) min. | |
|---|---|---|---|---|---|
| المعيار | جودة | ||||
| A80 | |||||
| EN 10268:2006+A1:2013 | HC340LA (MOD) | 255 | 350-450 | 430 min. | 25 |
- This grade is produced according to reference mechanical values above in line with agreements with customers.
- Tensile test values apply to "transverse" test pieces