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5246 Quality Sheet Specification
Köprü Yapımında Kullanılan Yapı Çelikleri
AlternativesThere is no alternative to this sheet.
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.
Köprü Yapımında Kullanılan Yapı Çelikleri
Chemical Composition (%)
| Standard Equivalent | Erdemir Grade No | Thickness (mm) | Cmax. | Mnmin. | Mnmax. | Pmax. | Smax. | Simax. | Vmin. | Vmax. | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Standard | Quality | ||||||||||
| ASTM A709-2026 | 345F Type2 | 5246 | 1≤t≤10 | 0.23 | 0.50 | 1.35 | 0.04 | 0.05 | 0.40 | 0.01 | 0.15 |
| ASTM A709-2026 | 345F Type2 | 5246 | 10.01≤t≤25 | 0.23 | 0.80 | 1.35 | 0.04 | 0.05 | 0.40 | 0.01 | 0.15 |
- 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 carbon maximum, an increase of 0.06 percentage point manganese above the specified maximum is permitted, up to a maximum of 1.60 %.
- 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] | Rm [N/mm2] | A(%) min. t(thickness, mm) | Impact | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Standard | Quality | |||||||||||
| A502.1≤t≤19 | A20019.01≤t≤26 | Temperature ( ° C)6≤t≤7.49 | KVC J min.6≤t≤7.49 | Temperature ( ° C)7.5≤t≤9.99 | KVC J min.7.5≤t≤9.99 | Temperature ( ° C)10≤t≤26 | KVC J min.10≤t≤26 | |||||
| ASTM A709-2026 | 345F Type2 | 5246 | 345 min. | 450 min. | 19 | 16 | -30 | 14 | -30 | 21 | -30 | 27 |
- Tensile test values apply to "transverse" test pieces
- Impact test is not carried out for thickness thinner than 6 mm.
Flat / Plate
Heavy plate products are obtained by rolling semi-finished products with a rectangular cross-section (slab) produced by the continuous casting method to a specific temperature, with thicknesses ranging from 6.00 to 200.00 mm and widths ranging from 1000 to 3600 mm.
Köprü Yapımında Kullanılan Yapı Çelikleri
Chemical Composition (%)
| Standard Equivalent | Erdemir Grade No | Thickness (mm) | Cmax. | Mnmin. | Mnmax. | Pmax. | Smax. | Simin. | Simax. | Vmin. | Vmax. | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Standard | Quality | |||||||||||
| ASTM A709-2026 | 345F Type2 | 5246 | 6≤t≤10 | 0.23 | 0.50 | 1.35 | 0.04 | 0.05 | - | 0.40 | 0.01 | 0.15 |
| ASTM A709-2026 | 345F Type2 | 5246 | 10.01≤t≤40 | 0.23 | 0.80 | 1.35 | 0.04 | 0.05 | - | 0.40 | 0.01 | 0.15 |
| ASTM A709-2026 | 345F Type2 | 5246 | 40.01≤t≤60 | 0.23 | 0.80 | 1.35 | 0.04 | 0.05 | 0.15 | 0.40 | 0.01 | 0.15 |
- 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 carbon maximum, an increase of 0.06 percentage point manganese above the specified maximum is permitted, up to a maximum of 1.60 %.
- Deoxidation method of this products is fully-killed. Minimum aluminium to nitrogen ratio is 2:1.
- There is no limit for minimum % value of silicon less than or equal to 40mm in thickness.
Mechanical Properties
| Standard Equivalent | Erdemir Grade No | Re [N/mm2] | Rm [N/mm2] | A(%) min. t(thickness, mm) | Impact | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Standard | Quality | |||||||||||||
| A506≤t≤19 | A20019.01≤t≤60 | Temperature ( ° C)6≤t≤7.49 | KVC J min.6≤t≤7.49 | Temperature ( ° C)7.5≤t≤9.99 | KVC J min.7.5≤t≤9.99 | Temperature ( ° C)10≤t≤50 | KVC J min.10≤t≤50 | Temperature ( ° C)50.01≤t≤60 | KVC J min.50.01≤t≤60 | |||||
| ASTM A709-2026 | 345F Type2 | 5246 | 345 min. | 450 min. | 19 | 16 | -30 | 14 | -30 | 21 | -30 | 27 | -30 | 33 |
- Tensile test values apply to "transverse" test pieces
- Impact test is not carried out for thickness thinner than 6 mm.