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1422 Quality Sheet Specification
Zinc-iron alloy coated (galvennealed) structural steels
Reproducible Letter Symbols --> GFR --> GFRD --> GFR
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.
Zinc-iron alloy coated (galvennealed) structural steels
Chemical Composition (%)
| Standard Equivalent | Erdemir Grade No | Cmax. | Mnmax. | Pmax. | Smax. | Simax. | |
|---|---|---|---|---|---|---|---|
| Standard | Quality | ||||||
| EN 10346:2015 | S220GD+ZF | 1422 | 0.20 | 1.70 | 0.10 | 0.045 | 0.60 |
- There are no chemical footnotes.
Mechanical Properties
| Standard Equivalent | Erdemir Grade No | Re [N/mm2] | Rm [N/mm2] | A(%) min. t(thickness, mm) | |||
|---|---|---|---|---|---|---|---|
| Standard | Quality | ||||||
| A800.4≤t≤0.5 | A800.51≤t≤0.7 | A800.71≤t≤2 | |||||
| EN 10346:2015 | S220GD+ZF | 1422 | 220 min. | 300 min. | 16 | 18 | 20 |
- The values of tensile strength for all the steel grades may be expected to be within a value range of 140 N/mm² (14,3 kg/mm²)
- The mechanical properties are valid for a period of 1 months from the date on which the products are made available.
- Tensile test values apply to "longitudinal" test pieces