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145 Quality Sheet Specification
Non-aging extra deep-drawing quality steels (Ultra low carbon IF steels)
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.
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 | DC04 | 145 | 0.07 | 0.35 | 0.03 | 0.025 | 0.085 | 0.095 |
- Limits given in this table are based on Erdemir practice for reference.
- 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 | 145 | 230 max. | 210 max. | 190 max. | 270-330 | 36 | 38 | 40 | 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)
- This grade is produced according to reference mechanical values above in line with agreements with customers.
- 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.