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6353 Quality Sheet Specification
Hot rolled normalized fine grained steels suitable for pressure purposes
Reproducible Letter Symbols --> HRUKK --> KRKK --> L --> LKK --> 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.
Hot rolled normalized fine grained steels suitable for pressure purposes
Chemical Composition (%)
| Standard Equivalent | Erdemir Grade No | Cmax. | Mnmin. | Mnmax. | Pmax. | Smax. | Simax. | Almin. | Nmax. | Crmax. | Momax. | Nimax. | Vmax. | Nbmax. | Timax. | Cumax. | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Standard | Quality | ||||||||||||||||
| EN 10028-3:2017 | P355NH | 6353 | 0.18 | 1.10 | 1.70 | 0.025 | 0.01 | 0.50 | 0.02 | 120.00 | 0.30 | 0.08 | 0.50 | 0.10 | 0.05 | 0.03 | 0.30 |
- Cu + Cr + Mo ≤ 0.45 %
- (Nb + V + Ti) ≤ 0.12%
- Al/N ≥ 2
- Minimum value for aluminium does not apply if the chemical composition includes additionally Nb, Ti or V.
- Depending on agreement, Cu + 6Sn ≤ 0,33 %
Mechanical Properties
| Standard Equivalent | Erdemir Grade No | Re [N/mm2] t(thickness, mm) | Rm [N/mm2] | A(%) min. t(thickness, mm) | Impact | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Standard | Quality | ||||||||||||
| 1.8≤t≤16 | 16.01≤t≤26 | A801.8≤t≤2.99 | A53≤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 | ||||
| EN 10028-3:2017 | P355NH | 6353 | 355 min. | 345 min. | 490-630 | 22 | 22 | -20 | 15 | -20 | 20 | -20 | 30 |
- Tensile test values apply to "transverse" test pieces
- The tensile test for proof strength at elevated temperature is carried out on request.
- 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.
Hot rolled normalized fine grained steels suitable for pressure purposes
Chemical Composition (%)
| Standard Equivalent | Erdemir Grade No | Cmax. | Mnmin. | Mnmax. | Pmax. | Smax. | Simax. | Almin. | Nmax. | Crmax. | Momax. | Nimax. | Vmax. | Nbmax. | Timax. | Cumax. | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Standard | Quality | ||||||||||||||||
| EN 10028-3:2017 | P355NH | 6353 | 0.18 | 1.10 | 1.70 | 0.025 | 0.01 | 0.50 | 0.02 | 120.00 | 0.30 | 0.08 | 0.50 | 0.10 | 0.05 | 0.03 | 0.30 |
- Cu + Cr + Mo ≤ 0.45 %
- (Nb + V + Ti) ≤ 0.12%
- Al/N ≥ 2
- Minimum value for aluminium does not apply if the chemical composition includes additionally Nb, Ti or V.
- Depending on agreement, Cu + 6Sn ≤ 0,33 %
Mechanical Properties
| Standard Equivalent | Erdemir Grade No | Re [N/mm2] t(thickness, mm) | Rm [N/mm2] | A(%) min. | Impact | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Standard | Quality | ||||||||||||
| 6≤t≤16 | 16.01≤t≤40 | 40.01≤t≤50 | A5 | 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≤60 | KVC J min.10≤t≤60 | ||||
| EN 10028-3:2017 | P355NH | 6353 | 355 min. | 345 min. | 335 min. | 490-630 | 22 | -20 | 15 | -20 | 20 | -20 | 30 |
- Tensile test values apply to "transverse" test pieces
- The tensile test for proof strength at elevated temperature is carried out on request.
- Impact test is not carried out for thickness thinner than 6 mm.