A40 High-Strength Shipbuilding Steel
Request A40 Steel Pricing
Auremo LLC, 505 Ellicott St, Buffalo, NY 14203, handles A40 steel inquiries for U.S. shipbuilding and fabrication projects. Call +1 716 910 04 21 or send the classification standard, dimensions and quantity.
Available product forms
- plate and wide flat
- strip and flat products
- structural shapes subject to specification
- cut blanks and custom dimensions
Information to include in your request
Please provide the governing standard or grade, product form, dimensions and tolerances, quantity, delivery ZIP code and required documentation. Pricing and availability are confirmed individually for each inquiry.
Frequently asked questions
How is the price for A40 shipbuilding steel confirmed?
Prices are provided on request and depend on the exact grade or standard, dimensions, tolerances, quantity, documentation and freight requirements.
Can non-standard dimensions be requested?
Yes. Include a drawing or dimensional requirements. Availability and manufacturing or sourcing feasibility are confirmed with the quotation.
What is the typical delivery time in the United States?
Typical U.S. delivery is 2–3 weeks after order confirmation. The final lead time and delivery terms are stated in the quotation for the selected material, quantity and destination.
Related materials and references
A32 shipbuilding steel · S390 structural steel · 1571 / E47 steel
Designation
| Name | The value |
|---|---|
| Designation GOST Cyrillic | A40 |
| Designation GOST Latin | A40 |
| Transliteration | A40 |
| The chemical elements | A40 |
Description
A40 steel grade and purchasing requirements
Search variants such as A40 steel, A-40 and A40 material are not sufficient to establish interchangeability. State the issuing standard or classification society, required product form, thickness or section, delivery condition, impact-test requirements, certificates and quantity so the requested A40 material can be verified before quotation.
A40 steel is used: for the production of plate, universal broadband, bandpass and shaped rolled, intended for the manufacture of shells and other welded structures of ships and floating structures.
Note
High-strength steel.
Standards
| Name | Code | Standards |
|---|---|---|
| Sheets and stripes | В23 | GOST 5521-93 |
| Sheets and stripes | В33 | TU 14-1-4779-90 |
Chemical composition
| Standard | C | S | P | Mn | Cr | Si | Ni | Fe | Cu | N | Al | V | Mo | Nb |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| GOST 5521-93 | ≤0.18 | ≤0.035 | ≤0.035 | 0.9-1.6 | ≤0.2 | 0.15-0.5 | ≤0.4 | The rest | ≤0.35 | ≤0.008 | 0.015-0.06 | 0.05-0.1 | ≤0.08 | 0.02-0.05 |
According to GOST 5521-93, the mass fraction of nitrogen is allowed up to 0.012%, provided that KCU ≥ 294 kJ / m 2 is provided in the rolled product after mechanical aging at 20 ° C. It is allowed in place of aluminum soluble in acids, to determine its total mass fraction, while the rate increases by 0.005%. Partial replacement of aluminum with titanium is allowed: the total mass fraction of aluminum and titanium should be at least 0.015%, the mass fraction of titanium - not more than 0.020%, the mass fraction of aluminum soluble in acids - not less than 0.005%. Microalloying of steel niobium and vanadium is produced jointly or by one of them.
Mechanical characteristics
| Section, mm | sT|s0,2, MPa | σB, MPa | d5, % |
|---|---|---|---|
| Castings according to GOST 2685-75 | |||
| ≥390 | 510-650 | ≥20 | |
Description mechanical marks
| Name | Description |
|---|---|
| Section | Section |
| sT|s0,2 | Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2% |
| σB | Limit short-term strength |
| d5 | Elongation after rupture |
