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398 جودة مواصفات الورقة
Galvanized,dual-phase steel with high yield strength for cold forming
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Flat / Galvanised
Galvanized flat steel is manufactured by zinc-coating both sides of cold rolled metal by hot-dipping process. After having coated the steel surface with zinc, the coating of the interface is transformed into an alloy of iron-zinc layer through heating by induction and the galvannealed steel is produced.
Galvanized,dual-phase steel with high yield strength for cold forming
التركيب الكيميائي (%)
| المعيار المكافئ | رقم جودة إرديمير | Cmax. | Mnmax. | Pmax. | Smax. | Simax. | Almin. | Almax. | Cumax. | Bmax. | Cr+Momax. | Nb+Timax. | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| المعيار | جودة | ||||||||||||
| MS.50002 | DPC420Y780T | 398 | 0.18 | 2.50 | 0.08 | 0.015 | 1.00 | 0.01 | 2.00 | 0.20 | 50.00 | 1.40 | 0.15 |
- If the carbon value %C < 0.015 , contains a minimum of 0.0003% (3 ppm) boron.
- %Ni+%Cr+%Mo ≤ 1.5
- The limits which are specified in the table are the limits of the customer's specifications.
الخواص الميكانيكية
| المعيار المكافئ | رقم جودة إرديمير | Re [N/mm2] | Rm [N/mm2] | A(%) min. t(thickness, mm) | n4-6% | n10-UE | BH2 [N/mm2] min. | ||
|---|---|---|---|---|---|---|---|---|---|
| المعيار | جودة | ||||||||
| A800.4≤t≤0.7 | A800.71≤t≤2 | min. | min. | ||||||
| MS.50002 | DPC420Y780T | 398 | 420-550 | 780 min. | 12 | 14 | 0.15 | 0.15 | 30 |
- If the maximum value of uniform elongation is lower than 20 %, the value of n is determined between 10 % and Ag % (the maximum value of uniform elongation)
- The mechanical properties are valid for a period of 3 months from the date on which the products are made available.