A40
For rolled products intended for the manufacture of shells and other welded structures of ships and floating structures
Classification
| Country | Section | Category |
|---|---|---|
| CIS, Russia, Ukraine | Steels for special purposes | Steels for shipbuilding |
Chemical composition
| Standard | Fe, % | Si, % | Mn, % | Cr, % | Cu, % | Ni, % | V, % | Al, % | As, % | P, % | C, % | S, % | Nb, % | Mo, % | N, % |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| GOST 5521-93 | 96.322–98.865 | 0.15–0.5 | 0.9–1.6 | < 0.2 | < 0.35 | < 0.4 | 0.05–0.1 | 0.015–0.06 | < 0.08 | < 0.035 | < 0.18 | < 0.035 | 0.02–0.05 | < 0.08 | < 0.008 |
Information on suppliers
Mechanical properties at 20 °C
| Rolling | Standard | Size, mm | Tension | Classifiers | $$\sigma _{U}$$, $$MPa$$ | $$\sigma_{P}$$, $$MPa$$ | $$\epsilon_L$$, % | Treatment |
|---|---|---|---|---|---|---|---|---|
| Hire | GOST 5521-93 | 510–650 | 390 | 20 | ||||
| Hire | GOST 52927-2008 | 510–660 | 390 | 20 |
Standards
| Standard | Description |
|---|---|
| GOST 5521-93 |
Description of chemical elements
| Element | Units of measurement | Description |
|---|---|---|
| Fe | % | Iron |
| Si | % | Silicon |
| Mn | % | Manganese |
| Cr | % | Chrome |
| Cu | % | Copper |
| Ni | % | Nickel |
| V | % | Vanadium |
| Al | % | Aluminium |
| As | % | Arsenic |
| P | % | Phosphorus |
| C | % | Carbon |
| S | % | Sulfur |
| Nb | % | Niobium |
| Mo | % | Molybdenum |
| N | % | Nitrogen |
Description of mechanical properties
| Parameter | Units of measurement | Description |
|---|---|---|
| $$\sigma _{U}$$ | $$MPa$$ | Ultimate tensile strength |
| $$\sigma_{P}$$ | $$MPa$$ | Proportionality limit |
| $$\epsilon_L$$ | % | Elongation at break (longitudinal) |