Alloy Aluminum AK8 (1380, AKD8)
Chemical composition
| Al | Aluminum | Rest |
| Fe | Iron | <0.7 |
| Si | Silicon | 0.5 — 1.2 |
| Mg | Magnesium | 0.2 — 0.8 |
| Mn | Manganese | 0.4 — 1.0 |
| Cu | Copper | 3.9 — 5.0 |
| Ti | Titanium | <0.15 |
| Cr | Chromium | <0.1 |
| Zn | Zinc | <0.25 |
| OE | Other items | <0.05 |
| ET | Total other items | <0.15 |
Ti + Zr <0.2
Analogs in Germany
AlCuSiMn DIN 1725 Part 1
3.1255 DIN 1725 Part 1
EN AW-2014A DIN EN 12392: 2016
EN AW-AlCu4SiMg (A) DIN EN 12392: 2016
EN AW-2014A DIN EN 12392: 2016 / A1: 2019
EN AW-AlCu4SiMg (A) DIN EN 12392: 2016 / A1: 2019
EN AW-2014A DIN EN 1301−2: 1997
AlCu4SiMg (A) DIN EN 1301−2: 1997
AL-P2014A-T6 DIN EN 2087: 2006
AL-P2014A-T62 DIN EN 2087: 2006
AL-P2014A-T4 DIN EN 2088: 2007
AL-P2014A-T42 DIN EN 2088: 2007
AL-P2014A-T6 DIN EN 2089: 2005
AL-P2014A-T62 DIN EN 2089: 2005
AL-P2014A-T4511 DIN EN 2100: 1992
AL-P2214-T651 DIN EN 2124: 2000
AL-P16-T6151 DIN EN 2125: 2019
AL-P2214-T6 DIN EN 2382: 1998
AL-P2214-T4 DIN EN 2383: 1998
AL-P2014A-T6511 DIN EN 2384: 1992
AL-P2014A-T4 DIN EN 2395: 2005
AL-P2014A-T42 DIN EN 2395: 2005
AL-P2124-T351 DIN EN 2422: 2005
AL-P2214- DIN EN 2485: 1998
AL-P2014A-T6511 DIN EN 2635: 1999
2024A-T6 DIN EN 2639: 1991
AL-P2014A-T3 DIN EN 3346: 1998
2014 DIN EN 4632−002: 2008
EN AW-2014 DIN EN 573−3: 2013
EN AW-AlCu4SiMg DIN EN 573−3: 2013
EN AW-2014A DIN EN 573−3: 2013
EN AW-AlCu4SiMg (A) DIN EN 573−3: 2013
EN AW-2214 DIN EN 573−3: 2013
EN AW-AlCu4SiMg (B) DIN EN 573−3: 2013
Analogs in the USA
AlCu4SiMg
SG 70A
SG 70B
B 955 (356.0)
2014A AA
4217 AMS
4260 AMS
4261 AMS
4284 AMS
4285 AMS
4286 AMS
4028 AMS
4029 AMS
4121 AMS
4133 AMS
4134 AMS
4153 AMS
4314 AMS
AMS-A-22771 AMS
AMS-QQ-A-200/2 AMS
AMS-QQ-A-200/4 AMS
AMS-QQ-A-225/4 AMS
AA2014 ANSI
AA2017 ANSI
AA2214 ANSI
356.0 ANSI
SB 108 (A03560) ASME SB108
SB 108 (356.0) ASME SB108
SB 209 (2014) ASME SB209
SB 211 ASME SB211
SB 221 (2014) ASME SB221
SB 241 (2014) ASME SB241
358.0 ASTM A113
B 108 (356.0) ASTM B108
B 108 (A03560) ASTM B108
B 209 (2014) ASTM B209
B 210 (2014) ASTM B210
B 211 (2014) ASTM B211
B 221 (2014) ASTM B221
B 241 (2014) ASTM B241
B 247 (2014) ASTM B247
B 26 (356.0) ASTM B26
B 26 (A03560) ASTM B26
B 275 (A 03560) ASTM B275
B 275 (A 92014) ASTM B275
B 618 (356.0) ASTM B618
B 744 (2014) ASTM B744
B 745 (2014) ASTM B745
B 969 (356.0) ASTM B969
356.0 ASTM B969
J452 (323) SAE J452
A03560 UNS
A92014 UNS
356.0 Included in 7 Standards
2014 Included in 7 standards
For the manufacture of highly loaded aircraft parts; for parts operating under cryogenic temperatures. Technical requirements GOST 4784−97 Aluminum and deformable aluminum alloys. GOST R 51834−01 grades. Extruded aluminum alloy bars of high strength and increased ductility. Technical conditions OST 1 92014−90 Wrought aluminum alloys. Stamps
Classification
| Country | Section | Category |
|---|---|---|
| CIS, Russia, Ukraine | Aluminum, aluminum alloys | Wrought Aluminum Alloys |
Chemical composition
| Standard | Fe, % | Si, % | Mg, % | Mn, % | Cr, % | Ti, % | Cu, % | Zn, % | Al, % |
|---|---|---|---|---|---|---|---|---|---|
| GOST 4784-97 | < 0.7 | 0.5–1.2 | 0.2–0.8 | 0.4–1 | < 0.1 | < 0.15 | 3.9–5 | < 0.25 | 90.8–95 |
Information on suppliers
Physical characteristics
| Temperature, °C | $$E\cdot 10^{9}$$, $$MPa$$ | $$\alpha\cdot 10^{6}$$, $$K^{-1}$$ | $$\varkappa$$, $$\frac{W}{m\cdot K}$$ | $$\rho$$, $$\frac{kg}{m^3}$$ | $$c\cdot 10^{-3}$$, $$\frac{J}{kg\cdot K}$$ | $$R\cdot 10^{-6}$$, $$\Omega\cdot m$$ |
|---|---|---|---|---|---|---|
| 20 | 74 | 2800 | 0.043 | |||
| 100 | 22.5 | 168 | 0.838 |
Mechanical properties at 20 °C
| Rolling | Standard | Size, mm | Tension | Classifiers | $$\sigma _{U}$$, $$MPa$$ | $$\sigma_{P}$$, $$MPa$$ | $$\epsilon_L$$, % | $$\psi$$, % | Treatment |
|---|---|---|---|---|---|---|---|---|---|
| Round | GOST 21488-97 | 430–450 | 8–10 | Hardening and artificial aging | |||||
| Round | GOST 51834-2001 | high strength | 460 | 335–365 | 8 | Hardening and artificial aging | |||
| Profile | 490 | 450 | 7 | 15 | Quenching and aging |
Brinell hardness number
Analogues
| Germany | USA |
|---|---|
| 3.1255 | AA2014 |
Standards
| Standard | Description |
|---|---|
| GOST 4784-97 |
Description of chemical elements
| Element | Units of measurement | Description |
|---|---|---|
| Fe | % | Iron |
| Si | % | Silicon |
| Mg | % | Magnesium |
| Mn | % | Manganese |
| Cr | % | Chrome |
| Ti | % | Titan |
| Cu | % | Copper |
| Zn | % | Zinc |
| Al | % | Aluminium |
Description of physical characteristics
| Parameter | Units of measurement | Description |
|---|---|---|
| $$E\cdot 10^{9}$$ | $$MPa$$ | Elastic modulus |
| $$\alpha\cdot 10^{6}$$ | $$K^{-1}$$ | Coefficient of thermal (linear) expansion (range 20°C–T) |
| $$\varkappa$$ | $$\frac{W}{m\cdot K}$$ | Coefficient of thermal conductivity (the heat capacity of the material) |
| $$\rho$$ | $$\frac{kg}{m^3}$$ | The density of the material |
| $$c\cdot 10^{-3}$$ | $$\frac{J}{kg\cdot K}$$ | The specific heat of the material (range 20°C–T) |
| $$R\cdot 10^{-6}$$ | $$\Omega\cdot m$$ | Electrical resistivity |
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) |
| $$\psi$$ | % | Reduction in cross section on fracture |