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820 Quality Sheet Specification
Medium and high strength low alloyed steels suitable for cold forming for manufacture of chassis, cranes, trailers and railings in particular
Reproducible Letter Symbols --> HRUKK --> KRKK --> LRKK --> RKK
Flat / Hot Rolled
Flat steel products are obtained by heating semi-finished products with a rectangular cross-section (slab), which are produced by the continuous casting method, to a specific temperature and then rolling them, with thicknesses ranging from 1.40 to 25.40 mm and widths ranging from 700 to 2025 mm, produceed as coil or by cutting/slit-coiling flat steel products from coils.
Medium and high strength low alloyed steels suitable for cold forming for manufacture of chassis, cranes, trailers and railings in particular
Chemical Composition (%)
| Standard Equivalent | Erdemir Grade No | Cmax. | Mnmax. | Pmax. | Smax. | Simax. | Almin. | Almax. | Vmax. | Nbmax. | Timax. | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Standard | Quality | |||||||||||
| WSB-M1A215-E1 | GRADE 400 | 820 | 0.12 | 1.60 | 0.02 | 0.015 | 0.12 | 0.02 | 0.07 | 0.07 | 0.07 | 0.05 |
- Grade specified on the table, is produced within the framework of agreements with customers.
Mechanical Properties
| Standard Equivalent | Erdemir Grade No | Re [N/mm2] | Rm [N/mm2] | A(%) min. | |
|---|---|---|---|---|---|
| Standard | Quality | ||||
| A50 | |||||
| WSB-M1A215-E1 | GRADE 400 | 820 | 400-500 | 460 min. | 22 |
- Tensile test values apply to "longitudinal" test pieces