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7022 Quality Sheet Specification
Cold rolled high yield strength steels for cold forming
AlternativesThere is no alternative to this sheet.
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.
Cold rolled high yield strength steels for cold forming
Chemical Composition (%)
| Standard Equivalent | Erdemir Grade No | Cmax. | Mnmax. | Pmax. | Smax. | Simax. | Almin. | Nbmax. | Timax. | |
|---|---|---|---|---|---|---|---|---|---|---|
| Standard | Quality | |||||||||
| EN 10268:2006+A1:2013 | HC220Y | 7022 | 0.01 | 0.90 | 0.08 | 0.025 | 0.30 | 0.01 | 0.09 | 0.12 |
- Nb, V, Ti ve B may also be added.
- Nb + Ti + V + B ≤ % 0.22.
Mechanical Properties
| Standard Equivalent | Erdemir Grade No | Re [N/mm2] | Rm [N/mm2] | A(%) min. t(thickness, mm) | n90 | r90 | |||
|---|---|---|---|---|---|---|---|---|---|
| Standard | Quality | ||||||||
| A800.5≤t≤0.5 | A800.51≤t≤0.7 | A800.71≤t≤2 | min. | ||||||
| EN 10268:2006+A1:2013 | HC220Y | 7022 | 220-270 | 340-420 | 29 | 31 | 33 | 0.18 | 1.6 min. |
- Tensile test values apply to "transverse" test pieces
- The value of r90 only apply to products of thickness d ≥ 0.5 mm.
- The value of n90 only apply to products of thickness d ≥ 0.5 mm.
- Guarantee period is 6 months.