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6040 Quality Sheet Specification
Unalloyed carbon steel with intermediate- strength for tube production
Reproducible Letter Symbols --> HRP --> HRPKK --> HRU --> HRUKK --> KRKK --> L --> LKK --> LP --> LPKK --> LR --> LRKK --> R --> RD --> RKK --> RP --> RPD --> RPKK --> TR --> TRK
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.
Unalloyed carbon steel with intermediate- strength for tube production
Chemical Composition (%)
| Standard Equivalent | Erdemir Grade No | Cmax. | Mnmax. | Pmax. | Smax. | |
|---|---|---|---|---|---|---|
| Standard | Quality | |||||
| ASTM A500-2018 | B | 6040 | 0.26 | 1.35 | 0.035 | 0.035 |
- Copper content shall be minimum 0.20 %, if copper-containing steel is specified in the purchase order.
- For each reduction of 0.01 percentage point below the specified max C an increase of 0.06 percentage point above the specified max for Mn is permitted up to a max of 1.50% by heat analysis
Mechanical Properties
| Standard Equivalent | Erdemir Grade No | Re [N/mm2] | Rm [N/mm2] | A(%) min. | |
|---|---|---|---|---|---|
| Standard | Quality | ||||
| A50 | |||||
| ASTM A500-2018 | B | 6040 | 315 min. | 400 min. | 23 |
- Specified elongation value applies to thickness ≥ 4.57 mm. For thickness < 4.57 mm, the minimum elongation value is calculated by the formula : Elongation% = 2.40 d+12"
- Tensile test values apply to "longitudinal" test pieces