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4732 Quality Sheet Specification
High-strength steels for shipbuilding
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.
High-strength steels for shipbuilding
Chemical Composition (%)
| Standard Equivalent | Erdemir Grade No | Cmax. | Mnmin. | Mnmax. | Pmax. | Smax. | Simax. | Almin. | Crmax. | Momax. | Nimax. | Vmin. | Vmax. | Nbmin. | Nbmax. | Timax. | Cumax. | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Standard | Quality | |||||||||||||||||
| ABS-P2-2022 | DH32 | 4732 | 0.18 | 0.90 | 1.60 | 0.035 | 0.035 | 0.50 | 0.02 | 0.20 | 0.08 | 0.40 | 0.05 | 0.10 | 0.02 | 0.05 | 0.02 | 0.35 |
- The indicated amount of aluminum, niobium and vanadium applies when any such element is used singly.
Mechanical Properties
| Standard Equivalent | Erdemir Grade No | Re [N/mm2] | Rm [N/mm2] | A(%) min. t(thickness, mm) | Impact | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Standard | Quality | |||||||||||||||
| A2002.1≤t≤5 | A2005.01≤t≤10 | A20010.01≤t≤15 | A20015.01≤t≤20 | A20020.01≤t≤25 | A20025.01≤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 | |||||
| ABS-P2-2022 | DH32 | 4732 | 315 min. | 440-590 | 14 | 16 | 17 | 18 | 19 | 20 | -20 | 21 | -20 | 26 | -20 | 31 |
- Tensile test values apply to "transverse" test pieces
- Impact energy values for "full size" (10 X 10 mm) test specimens for thinner products, impact energy values decreases depending on the thickness.
- 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.
High-strength steels for shipbuilding
Chemical Composition (%)
| Standard Equivalent | Erdemir Grade No | Cmax. | Mnmin. | Mnmax. | Pmax. | Smax. | Simax. | Almin. | Crmax. | Momax. | Nimax. | Vmin. | Vmax. | Nbmin. | Nbmax. | Timax. | Cumax. | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Standard | Quality | |||||||||||||||||
| ABS-P2-2022 | DH32 | 4732 | 0.18 | 0.90 | 1.60 | 0.035 | 0.035 | 0.50 | 0.02 | 0.20 | 0.08 | 0.40 | 0.05 | 0.10 | 0.02 | 0.05 | 0.02 | 0.35 |
- The indicated amount of aluminum, niobium and vanadium applies when any such element is used singly.
Mechanical Properties
| Standard Equivalent | Erdemir Grade No | Re [N/mm2] | Rm [N/mm2] | A(%) min. t(thickness, mm) | Impact | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Standard | Quality | ||||||||||||||||||
| A2006≤t≤10 | A20010.01≤t≤15 | A20015.01≤t≤20 | A20020.01≤t≤25 | A20025.01≤t≤30 | A20030.01≤t≤40 | A20040.01≤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 | |||||
| ABS-P2-2022 | DH32 | 4732 | 315 min. | 440-590 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | -20 | 21 | -20 | 26 | -20 | 31 | -20 | 38 |
- Tensile test values apply to "transverse" test pieces
- Impact energy values for "full size" (10 X 10 mm) test specimens for thinner products, impact energy values decreases depending on the thickness.
- Impact test is not carried out for thickness thinner than 6 mm.