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7115 Quality Sheet Specification
Non-aging extra deep-drawing quality steels (Ultra low carbon IF steels)
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.
Non-aging extra deep-drawing quality steels (Ultra low carbon IF steels)
Chemical Composition (%)
| Standard Equivalent | Erdemir Grade No | Cmax. | Mnmax. | Pmax. | Smax. | Timin. | Timax. | |
|---|---|---|---|---|---|---|---|---|
| Standard | Quality | |||||||
| EN 10130:2006 | DC05 | 7115 | 0.06 | 0.35 | 0.025 | 0.025 | 0.085 | 0.095 |
- Deoxidation method of this products is fully-killed. Minimum aluminium to nitrogen ratio is 2:1.
- The Ti limit is specified as reference value according to Erdemir manufacturing practice. Other limits are customer specification limits.
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 | DC05 | 7115 | 220 max. | 200 max. | 180 max. | 270-330 | 36 | 38 | 40 | 0.2 | 1.9 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.