Aluminum alloy AK7ch (AL9)
Chemical composition
| Al | Aluminum | Rest |
| Be | Beryllium | <0.1 |
| Fe | Iron | <0.5 |
| Si | Silicon | 6.0 — 8.0 |
| Mg | Magnesium | 0.25 — 0.45 |
| Mn | Manganese | <0.5 |
| Cu | Copper | <0.2 |
| Sn | Tin | <0.01 |
| Pb | Lead | <0.05 |
| Zn | Zinc | <0.3 |
| Ot | Total impurities | <1.0 |
Ti + Zr <0.15
Allowed Sr <0.08
Analogs in Germany
AlSi7Mg
3.2371
G-AlSi7Mg wa DIN 1725 Part 2
3.2371.61 DIN 1725 Part 2
GK-AlSi7Mg wa DIN 1725 Part 2
3.2371.62 DIN 1725 Part 2
GF-AlSi7Mg wa DIN 1725 Part 2
3.2371.63 DIN 1725 Part 2
GB-AlSi7Mg DIN 1725 Part 5
3.2335 DIN 1725 Part 5
EN AC-42100 DIN EN 12392: 2016
EN AC-AlSi7Mg 0.3 DIN EN 12392: 2016
EN AC-42100 DIN EN 12392: 2016 / A1: 2019
EN AC-AlSi7Mg 0.3 DIN EN 12392: 2016 / A1: 2019
EN AB-42000 DIN EN 1676: 2010
EN AB-AlSi7Mg DIN EN 1676: 2010
EN AB-42000 DIN EN 1676: 2019
EN AB-AlSi7Mg DIN EN 1676: 2019
EN AC-42000 DIN EN 1706: 2013
EN AC-42100 DIN EN 1706: 2013
EN AC-AlSi7Mg DIN EN 1706: 2013
EN AC-AlSi7Mg0.3 DIN EN 1706: 2013
EN AC-42000 DIN EN 1706: 2019
EN AC-AlSi7Mg DIN EN 1706: 2019
EN AC-42100 DIN EN 1706: 2019
EN AC-AlSi7Mg 0.3 DIN EN 1706: 2019
Al Si 7 Mg 0.3 DIN EN 4632−002: 2008
Aluminum alloys DIN EN 601: 2004
Aluminum alloys DIN EN 602: 2004
AlSi7Mg TGL 6556/02
Analogs in the USA
SG 70A
SG 70B
357
A 344
SG 70B
AA 357.0
R-A356.0
RA-357.0
B 955 (356.0)
A444.0 AA
A356.0 AA
A444.0 AA
4217 AMS
4260 AMS
4261 AMS
4284 AMS
4285 AMS
4286 AMS
4246 AMS
4218 AMS
AMS-A-21180 (A356.0) AMS
356.0 ANSI
A356.0 ANSI
357.0 ANSI
A444.0 ANSI
EN AC-42000 ASME SB / EN 1706
EN AC-42100 ASME SB / EN 1706
EN AC-AlSi7Mg ASME SB / EN 1706
EN AC-AlSi7Mg0.3 ASME SB / EN 1706
SB 108 (A03560) ASME SB108
SB 108 (356.0) ASME SB108
SB 108 (A13560) ASME SB108
SB 108 (A356.0) ASME SB108
SB 108 (357.0) ASME SB108
SB 108 (A14440) ASME SB108
SB 108 (A444.0) ASME SB108
B 108 (356.0) ASTM B108
B 108 (A03560) ASTM B108
B 108 (A356.0) ASTM B108
B 108 (A13560) ASTM B108
B 108 (357.0) ASTM B108
B 108 (A444.0) ASTM B108
B 108 (A14440) ASTM B108
B 26 (356.0) ASTM B26
B 26 (A03560) ASTM B26
B 26 (A356.0) ASTM B26
B 26 (A13560) ASTM B26
B 275 (A 03560) ASTM B275
B 275 (A 03570) ASTM B275
B 275 (A 13560) ASTM B275
B 275 (A 14440) ASTM B275
B 618 (356.0) ASTM B618
B 618 (A356.0) ASTM B618
B 686 (A356.0) ASTM B686
B 969 (356.0) ASTM B969
356.0 ASTM B969
B 969 (A356.0) ASTM B969
A356.0 ASTM B969
B 969 (357.0) ASTM B969
357.0 ASTM B969
356 QQ A-596d
J452 (323) SAE J452
J452 (336) SAE J452
J452 SAE J452
J452 SAE J452
A03560 UNS
A03570 UNS
A13560 UNS
A14440 UNS
357.0 Included in 3 standards
A356.0 Included in 5 standards
356.0 Included in 7 Standards
For the manufacture of shaped castings; the alloy is highly tight. Technical requirements — according to GOST 1583−93 Cast aluminum alloys. Technical conditions GOST R 55375−12 Primary aluminum and alloys based on it. Stamps
Classification
| Country | Section | Category |
|---|---|---|
| CIS, Russia, Ukraine | Aluminum, aluminum alloys | Foundry aluminum alloys |
Chemical composition
| Standard | Fe, % | Si, % | Be, % | Sn, % | Mg, % | Mn, % | Ti, % | Cu, % | Zn, % | Zr, % | Al, % | Pb, % |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| GOST 1583-93 | < 1.5 | 6–8 | < 0.1 | < 0.01 | 0.2–0.4 | < 0.5 | < 0.1 | < 0.2 | < 0.3 | < 0.05 | 89.6–93.8 | < 0.05 |
Information on suppliers
Physical characteristics
| Temperature, °C | $$\alpha\cdot 10^{6}$$, $$K^{-1}$$ | $$\rho$$, $$\frac{kg}{m^3}$$ | $$R\cdot 10^{-6}$$, $$\Omega\cdot m$$ |
|---|---|---|---|
| 20 | 2660 | 45.7 | |
| 100 | 21.8 |
Mechanical properties at 20 °C
| Rolling | Standard | Size, mm | Tension | Classifiers | $$\sigma_{0.5}$$, $$MPa$$ | δ, % | Treatment |
|---|---|---|---|---|---|---|---|
| Casting | GOST 1583-93 | 137–225 | 1–4 |
Analogues
| USA | Germany | Japan | France | United Kingdom | China |
|---|---|---|---|---|---|
| 323 | G-AlSi7Mg | AC4C | AS7G03 | LM25 | HZL101 |
Standards
| Standard | Description |
|---|---|
| GOST 1583-93 |
Description of chemical elements
| Element | Units of measurement | Description |
|---|---|---|
| Fe | % | Iron |
| Si | % | Silicon |
| Be | % | Beryllium |
| Sn | % | Tin |
| Mg | % | Magnesium |
| Mn | % | Manganese |
| Ti | % | Titan |
| Cu | % | Copper |
| Zn | % | Zinc |
| Zr | % | Zirconium |
| Al | % | Aluminium |
| Pb | % | Lead |
Description of physical characteristics
| Parameter | Units of measurement | Description |
|---|---|---|
| $$\alpha\cdot 10^{6}$$ | $$K^{-1}$$ | Coefficient of thermal (linear) expansion (range 20°C–T) |
| $$\rho$$ | $$\frac{kg}{m^3}$$ | The density of the material |
| $$R\cdot 10^{-6}$$ | $$\Omega\cdot m$$ | Electrical resistivity |
Description of mechanical properties
| Parameter | Units of measurement | Description |
|---|---|---|
| δ | % | Elongation after rupture |
| $$\sigma_{0.5}$$ | $$MPa$$ | Tensile stress required to produce a total elongation of 0.5% |