Д19ч aluminum alloy / D19ch aluminum alloy is a Russian wrought Al-Cu-Mg aluminum alloy suitable for aircraft load-bearing parts, automotive bodies, and large-section plates for aviation and special machinery working at 200–250°C.
Chalco can supply Д19ч aluminum plates, coils, strips, and other products. Products can be confirmed according to GOST, OST, customer drawings, samples, and project technical specifications, with support for material confirmation, size customization, cutting, inspection documents, and export packaging.
Д19ч aluminum alloy standards and specifications
Chalco can supply Д19ч aluminum alloy materials according to customer drawings, project technical documents, and Russian standard requirements, meeting GOST 4784-97, OST 1 90048-90, and related semi-finished product standards.
| Product Category | Applicable Standards |
| Coils and formed semi-finished products | GOST 13616-97, GOST 13617-97, GOST 13618-97, GOST 13619-97, GOST 13620-90, GOST 13621-90, GOST 13622-91, GOST 13623-90, GOST 13624-90, GOST 13737-90, GOST 13738-91, GOST 17575-90, GOST 17576-97, GOST 29296-92, GOST 29303-92, GOST R 50066-92, GOST R 50067-92, GOST R 50077-92, OST 1 92041-90, OST 1 90113-86, OST 1 90177-75 |
| Non-ferrous metals and alloys | GOST 4784-97, OST 1 90048-90 |
| Sheets and strips | OST 1 90246-77, OST 1 90166-75, OST 1 90070-92, TU 1-2-298-80, TU 1-92-161-90 |
Д19ч aluminum alloy chemical composition
Chalco can control the chemical composition of Д19ч aluminum alloy according to GOST 4784, OST 1 90048-90, or customer project technical documents.
| Element | Composition, % |
| Cu | 3.8–4.3 |
| Mg | 1.7–2.3 |
| Mn | 0.4–0.9 |
| Si | ≤0.20 |
| Fe | ≤0.30 |
| Ti | ≤0.10 |
| Zn | ≤0.10 |
| Be | 0.0002–0.005 |
| Other each | ≤0.05 |
| Other total | ≤0.10 |
| Al | Balance |
Role of main elements in Д19ч aluminum alloy
- Cu (copper): The main strengthening element in Д19ч aluminum alloy, helping the material achieve higher strength after quenching and aging.
- Mg (magnesium): Works with copper to improve heat-treatment strengthening and structural load-bearing capacity.
- Mn (manganese): Helps improve microstructural stability during hot working and supports the overall performance of profiles, panels, and structural parts.
- Be (beryllium): A trace controlled element. Formal purchasing and acceptance should follow the MTC or chemical composition report.
- Fe / Si (iron / silicon): Controlled impurity elements. Excessive content may affect plasticity, formability, and processing stability.
- Ti (titanium): Usually related to grain refinement and processing stability, helping improve ingot and material uniformity.
- Zn (zinc): A restricted element in Д19ч aluminum alloy, usually controlled at ≤0.10%.
Д19ч aluminum alloy available product forms
Д19ч aluminum sheet / plate
Д19ч aluminum sheet and plate are suitable for aviation-related panels, structural panels, cover parts, repair replacement parts, and machined components.
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Thickness, width, length, temper, cut size, and GOST 21631 requirements can be confirmed according to customer requirements.
| Item | Reference Range |
| Thickness | 0.5–10.5 mm |
| Width | 1000 / 1200 / 1500 / 1800 / 2000 / 2500 mm |
| Length | 2000–6000 mm; longer sizes can be reviewed by order |
| Supply condition | M / T / T1 / АМВ / АТВ |
| Standard | GOST 21631 or project technical specification |
Д19ч aluminum strip / flat bar
Д19ч aluminum strip and flat bar are suitable for structural strips, machined parts, supports, spacers, and profile-related applications.
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Д19ч aluminum strip and flat bar can be supplied according to GOST 13616-97. Common reference sizes include 2 × 12 mm, 3 × 25 mm, 3 × 30 mm, 4 × 30 mm, 4 × 35 mm, 6 × 50 mm, 8 × 10 mm, 10 × 110 mm, 12 × 200 mm, 25 × 140 mm, and 30 × 200 mm.
Non-standard thicknesses and widths can be reviewed based on customer drawings, order quantity, and production feasibility.
Д19ч aluminum alloy supply tempers
M condition: annealed condition
M condition is suitable for products requiring good plasticity, bending, forming, cutting, and further machining. It is preferred for complex parts, formed parts, and materials before machining.
T condition: quenched and naturally aged condition
T condition is suitable for profiles, panels, bars, and load-bearing parts requiring higher strength and structural stability.
T1 condition
T1 condition is commonly seen in some plates and project technical documents. It should be confirmed according to product form, thickness, heat treatment requirements, and final mechanical properties.
Д19ч aluminum alloy mechanical properties
The mechanical properties of Д19ч aluminum alloy depend on product form, section thickness, heat treatment condition, sampling direction, and applicable standard.
| Product Form | Standard | Condition / Thickness Range | Yield Strength MPa | Tensile Strength MPa | Elongation δ5 |
| Panel | OST 1 90177-75 | Sampling direction 1 | ≥313 | ≥421 | ≥10% |
| Panel | OST 1 90177-75 | Sampling direction 2 | ≥294 | ≥392 | ≥7% |
| Ribbed extruded panel | OST 1 92041-90 | As supplied | ≥255 | ≥390 | ≥10% |
| Ribbed extruded panel | OST 1 92041-90 | As supplied | ≥295 | ≥410 | ≥10% |
For aviation-related structural parts, load-bearing components, repair replacement parts, and special mechanical parts, it is recommended to confirm the material temper, product form, section thickness, sampling direction, and acceptance standard before purchasing.
Д19ч aluminum alloy physical properties
| Temperature | Density | Elastic Modulus | Electrical Resistivity |
| 20°C | 2760 kg/m³ | 70 GPa | 61 nΩ·m |
Note: The above physical property values are measured or referenced at 20°C.
Д19ч aluminum alloy applications
Aircraft structural plates
Д19ч aluminum plates can be used for aviation structural panels, cover plates, reinforcement plates, and repair replacement parts requiring strength, weight control, and material consistency.
Aviation repair and replacement plates
For repair projects using Russian standard materials, Д19ч rolled plates can be used for machined replacement parts, connection plates, reinforcement sheets, and structural repair plates.
Automotive body and lightweight structural plates
Д19ч aluminum plates are suitable for automotive body structures, cover parts, reinforcements, and lightweight sheet components requiring strength, weight reduction, and processability.
Machined plate parts
Д19ч thick plates and cut-to-size plates can be used for milled parts, structural connectors, support plates, mounting plates, and other machined components.
Special machinery structural plates
Д19ч rolled plates can be used for load-bearing plates, connection plates, protective plates, and structural parts in special machinery.
Other aluminum products available from Chalco
1980 aluminum
1985 aluminum
1105 aluminum
1420 aluminum
1163 aluminum
1920 aluminum
Documents and Export Support
Chalco can provide the following document support according to order requirements:
- Material Test Certificate / MTC
- Chemical composition report
- Dimensional inspection report
- Heat treatment or supply condition confirmation
- Batch identification
- Packing list
- Packing photos
- Export shipping documents
- Certificate of conformity according to order requirement
For GOST / OST aluminum alloy projects, it is recommended to confirm the standard version, material temper, document language, and acceptance method before quotation to avoid acceptance issues caused by inconsistent grade, temper, or document format after delivery.
What information should be provided when purchasing Д19ч aluminum alloy?
To quickly confirm production feasibility, dimensions, standards, and quotation, customers are advised to provide the following information:
- Alloy grade
- Applicable standard
- Product form
- Dimensions and specifications
- Supply temper
- Purchase quantity
- Application
- Drawings or samples
- Document requirements
- Delivery requirement
FAQ
What is Д19ч aluminum alloy?
Д19ч is a wrought Al-Cu-Mg aluminum alloy used for aircraft structural parts, automotive body ribbed panels, and related structural applications.
Are Д19ч and D19ch the same material?
Yes. Д19ч is the Russian grade name, while D19ch is the Latin spelling. Purchasing should follow the full marking in drawings and standard documents.
What are the main components of Д19ч aluminum alloy?
Д19ч mainly contains Cu 3.8–4.3%, Mg 1.7–2.3%, Mn 0.4–0.9%, Be 0.0002–0.005%, with Al as the balance.
What are common Д19ч aluminum plate sizes?
Reference thickness is 0.5–10.5 mm, with widths of 1000, 1200, 1500, 1800, 2000, and 2500 mm, and lengths of 2000–8000 mm.
Can Д19ч replace Д19 or Д16?
Direct replacement is not recommended. Substitution should be confirmed by chemical composition, temper, mechanical properties, product form, and project standard.
Does Д19ч have an international equivalent grade?
No international equivalent should be specified without checking composition, properties, and application conditions. Alternative materials should be confirmed by the customer's technical team or project standard.
Can Chalco provide material certificates for Д19ч?
Yes. Chalco can provide material certificates, chemical composition reports, dimensional inspection reports, heat treatment confirmation, and batch traceability documents as required.
Can samples of Д19ч aluminum alloy be provided?
Samples can be confirmed according to product form, specification, stock, and testing purpose. Custom products usually require drawing and production feasibility review first.
Is there an MOQ for Д19ч aluminum alloy?
Yes. MOQ depends on product form, size, temper, stock, tooling requirements, and inspection documents. Standard plates can be reviewed for small-batch supply, while non-standard products usually require production scheduling confirmation.
