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7314 Quality Sheet Specification
Ultra deep-drawing and non-aging steels for automotive industry
Reproducible Letter Symbols --> CCR --> CCRD --> CCRF --> CCRFS --> CCR
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.
Ultra deep-drawing and non-aging steels for automotive industry
Chemical Composition (%)
| Standard Equivalent | Erdemir Grade No | Cmax. | Mnmax. | Pmax. | Smax. | |
|---|---|---|---|---|---|---|
| Standard | Quality | |||||
| EN 10130:2006 | DC04 | 7314 | 0.08 | 0.40 | 0.03 | 0.03 |
- Suitable for spot welding.
- Deoxidation method of this products is fully-killed. Minimum aluminium to nitrogen ratio is 2:1.
Mechanical Properties
| Standard Equivalent | Erdemir Grade No | Re [N/mm2] t(thickness, mm) | Rm [N/mm2] | A(%) min. t(thickness, mm) | n90 | r90 | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Standard | Quality | ||||||||||
| 0.5≤t≤0.5 | 0.51≤t≤0.7 | 0.71≤t≤2 | A800.5≤t≤0.5 | A800.51≤t≤0.7 | A800.71≤t≤2 | min. | |||||
| EN 10130:2006 | DC04 | 7314 | 250 max. | 230 max. | 210 max. | 270-350 | 34 | 36 | 38 | 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.
- For design purposes, the lower limit of Re may be assumed to be 140 N/mm² (14.3 kg/mm²)
- Guarantee periods of absence of stretcher strains marks and mechanical properties are 6 months. The period begin on the date on which products are made available.