Gravity casting, as a crucial metal forming process, is widely used in industries such as automotive, aerospace, and mechanical manufacturing. Aluminum alloys, owing to their excellent strength-to-weight ratio, good castability, and corrosion resistance, are among the most commonly used materials in gravity casting. Based on the provided table of chemical composition control limits for aluminum alloys, this paper offers a professional analysis of the commonly used aluminum alloy grades in gravity casting.
Main Aluminum Alloy Grades and Their Characteristics
- ZL101/356.0 Series Aluminum Alloy
ZL101 (corresponding to the international grade 356.0) is a typical representative of the Al-Si-Mg series cast aluminum alloys, featuring the following characteristics:
Chemical composition: Si content 6.5–7.5%, Mg content 0.25–0.45%
Performance characteristics: Good castability, moderate strength, and excellent corrosion resistance
Heat treatment: Strength can be further improved through T5 or T6 heat treatment
Applications: Widely used in automotive wheel hubs, engine components, etc.
As shown in the table, different standards (GB/T 1173, ASTM B108, DIN EN 1706) have largely consistent requirements for the chemical composition of the same alloy, though corporate standards impose stricter controls on certain elements (e.g., Fe).
- ZL101A/A356.0 Series Aluminum Alloy
ZL101A (A356.0) is an improved version of ZL101, with the following key differences:
Stricter impurity control: Fe content limited to below 0.2% (compared to 0.9% in standard ZL101)
Reduced Mn content: ≤0.10% (compared to ≤0.35% in standard ZL101)
Addition of Ti: 0.08–0.20%, serving to refine grain structure
This high-purity aluminum alloy is particularly suitable for castings requiring high mechanical performance and surface quality, such as aerospace structural components.
| 重力铸造常用铝合金牌号化学成分控制限 | ||||||||||||||||
| JS20160720 | ||||||||||||||||
| 序 号 |
合金牌号 | 合金代号 Materail Code | 标准号 International standard | 企业 标准 standard |
元素含量%（Al余量） | |||||||||||
| Si | Mg | Cu | Mn | Ti | Fe ≤ |
Cr ≤ |
Ni ≤ |
Zn ≤ |
Sn ≤ |
其他≤ | ||||||
| 单个 | 总和 | |||||||||||||||
| 1 | AlSi7Mg | ZL101 | GB/T 1173 | 6.5～7.5 | 0.25～0.45 | ≤0.2 | ≤0.35 | / | 0.9 | / | / | 0.3 | 0.05 | / | 1.5 | |
| 356.0-T5 | ASTM B108 | 50057 | 6.5～7.5 | 0.20～0.45 | ≤0.25 | ≤0.35 | ≤0.25 | 0.6 | / | / | 0.35 | / | 0.05 | 0.15 | ||
| 356.0-T6 | ASTM B26 | 50002 | 6.5～7.5 | 0.20～0.45 | ≤0.25 | ≤0.35 | ≤0.25 | 0.6 | / | / | 0.35 | / | 0.05 | 0.15 | ||
| 356.0 | ASTM B108 | 6.5～7.5 | 0.20～0.45 | ≤0.25 | ≤0.35 | ≤0.25 | 0.6 | / | / | 0.35 | / | 0.05 | 0.15 | |||
| EN AC-AlSi7Mg | DIN EN 1706 | 6.5～7.5 | 0.20～0.65 | ≤0.20 | ≤0.35 | 0.05～0.25 | 0.55 | / | 0.15 | 0.15 | 0.05 | 0.05 | 0.15 | |||
| LM25 | BS1490 | 6.5～7.5 | 0.20～0.6 | ≤0.20 | ≤0.30 | ≤0.20 | 0.5 | / | 0.1 | 0.1 | 0.05 | 0.05 | 0.15 | |||
| 2 | AlSi7Mg0.3 | ZL101A | GB/T 1173 | 6.5～7.5 | 0.25～0.45 | ≤0.1 | ≤0.10 | 0.08～0.20 | 0.2 | / | / | 0.1 | 0.05 | / | 0.7 | |
| A356.0-T6 | ASTM B26 | 50106 | 6.5～7.5 | 0.25～0.45 | ≤0.20 | ≤0.10 | ≤0.20 | 0.20 | / | / | 0.10 | / | 0.05 | 0.15 | ||
| A356.0 | ASTM B108 | 6.5～7.5 | 0.25～0.45 | ≤0.20 | ≤0.10 | ≤0.20 | 0.20 | / | / | 0.10 | / | 0.05 | 0.15 | |||
| EN AC-AlSi7Mg0.3 | DIN EN 1706 | 6.5～7.5 | 0.25～0.45 | ≤0.05 | ≤0.10 | 0.08～0.25 | 0.19 | / | / | 0.07 | / | 0.03 | 0.10 | |||
| AC4CH | JIS H5202 | 6.5～7.5 | 0.25～0.45 | ≤0.10 | ≤0.10 | ≤0.20 | 0.20 | 0.05 | 0.05 | 0.10 | 0.05 | 0.05 | 0.15 | |||
| 3 | AlSi7Mg0.6 | EN AC-AlSi7Mg0.6 | DIN EN 1706 | 6.5～7.5 | 0.45～0.70 | ≤0.05 | ≤0.10 | 0.08～0.25 | 0.19 | / | / | 0.07 | / | 0.03 | 0.10 | |
| A357.0 | ASTM B108 | 6.5～7.5 | 0.40～0.70 | ≤0.20 | ≤0.10 | 0.04～0.20 | 0.20 | / | / | 0.10 | / | 0.05 | 0.15 | |||
| ZL114A | GB/T 1173 | 6.5～7.5 | 0.45～0.75 | ≤0.20 | ≤0.10 | 0.10～0.20 | 0.20 | / | / | 0.10 | / | / | 0.75 | |||
| 4 | AlSi10Mg | ZL104 | GB/T 1173 | 8.0～10.5 | 0.17～0.35 | ≤0.10 | 0.2～0.5 | / | 0.9 | / | / | 0.25 | 0.05 | / | 1.4 | |
| EN AC-AlSi10Mg(a) | DIN EN 1706 | 9.0～11.0 | 0.20～0.45 | ≤0.05 | ≤0.45 | ≤0.15 | 0.55 | / | 0.05 | 0.10 | 0.05 | 0.05 | 0.15 | |||
| EN AC-AlSi10Mg(b) | DIN EN 1706 | 9.0～11.0 | 0.20～0.45 | ≤0.10 | ≤0.45 | ≤0.15 | 0.55 | / | 0.05 | 0.10 | 0.05 | 0.05 | 0.15 | |||
| EN AC-AlSi10Mg(Cu) | DIN EN 1706 | 9.0～11.0 | 0.20～0.45 | ≤0.35 | ≤0.55 | ≤0.20 | 0.65 | / | 0.15 | 0.35 | / | 0.05 | 0.15 | |||
| EN AC-AlSi10Mg(Fe) | DIN EN 1706 | 9.0～11.0 | 0.20～0.50 | ≤0.10 | ≤0.55 | ≤0.20 | 1.0 | / | 0.15 | 0.15 | 0.05 | 0.05 | 0.15 | |||
| Al-Si10Mg | JIS H5202 | 9.0～11.0 | 0.15～0.40 | ≤0.10 | ≤0.6 | ≤0.20 | 0.60 | / | 0.05 | 0.10 | 0.05 | / | / | |||
| 5 | AlSi7Cu4 | ZL107 | GB/T 1173 | 6.5～7.5 | ≤0.10 | 3.5～4.5 | ≤0.5 | / | 0.6 | / | / | 0.3 | 0.05 | / | 1.2 | |
| 319.0 | ASTM B108 | 50010 | 4.0～8.0 | ≤0.50 | 1.5～4.0 | ≤0.60 | ≤0.25 | 1.00 | / | 0.35 | 1.0 | / | / | 0.50 | ||
| 6 | AlSi9Cu1Mg | EN AC-AlSi9Cu1Mg | DIN EN 1706 | 8.3～9.7 | 0.25～0.65 | 0.8～1.3 | 0.15～0.55 | 0.10～0.20 | 0.8 | / | 0.20 | 0.8 | 0.10 | 0.05 | 0.25 | |
| 7 | AlSi9Cu2Mg | ZL111 | GB/T 1173 | 8.0～10.0 | 0.40～0.60 | 1.3～1.8 | 0.10～0.35 | 0.10～0.35 | 0.4 | / | / | 0.1 | 0.05 | / | 1.2 | |
| 8 | AlSi9Cu3 | 333.0-F | ASTM B108 | 50016 | 8.0～10.0 | 0.05～0.50 | 3.0～4.0 | ≤0.50 | ≤0.25 | 1.0 | / | 0.50 | 1.0 | / | / | 0.50 |
| 333.0-T5 | ASTM B108 | 50041 | 8.0～10.0 | 0.05～0.50 | 3.0～4.0 | ≤0.50 | ≤0.25 | 1.0 | / | 0.50 | 1.0 | / | / | 0.50 | ||
| 333.0 | ASTM B108 | 8.0～10.0 | 0.05～0.50 | 3.0～4.0 | ≤0.50 | ≤0.25 | 1.0 | / | 0.50 | 1.0 | / | / | 0.50 | |||
| DIN AlSi9Cu3 | 50119 | 8.0～11.0 | 0.16～0.50 | 2.0～3.5 | 0.10～0.50 | ≤0.15 | 0.7 | / | 0.30 | 1.2 | / | / | 0.15 | |||
| EN AC-AlSi8Cu3 | DIN EN 1706 | 7.5～9.5 | 0.05～0.55 | 2.0～3.5 | 0.15～0.65 | ≤0.25 | 0.8 | / | 0.35 | 1.2 | 0.15 | 0.05 | 0.25 | |||
| EN AC-AlSi9Cu3(Fe) | DIN EN 1706 | 8.0～11.0 | 0.05～0.55 | 2.0～4.0 | ≤0.55 | ≤0.25 | 1.3 | 0.15 | 0.55 | 1.2 | 0.25 | 0.05 | 0.25 | |||
| AC4B | JIS H5202 | 7.0～10.0 | ≤0.50 | 2.0～4.0 | ≤0.50 | ≤0.20 | 1.0 | 0.20 | 0.35 | 1.0 | 0.10 | / | / | |||
| 9 | AlSi11CuMg | AC3AM | MS141-20 | 9.0～12.0 | 0.3～0.6 | 0.3～0.7 | ≤0.8 | ≤0.2 | 0.8 | 0.15 | 0.1 | 0.3 | 0.1 | 0.05 | 0.15 | |
| 10 | AlSi11Cu2 | YL113 | GB/T 15115 | 9.5～11.5 | ≤0.10 | 2.0～3.0 | ≤0.50 | / | 1.0 | / | 0.30 | 2.9 | / | / | / | |
| ADC12 | JIS H5302 | 50017 | 9.5～12.0 | ≤0.3 | 1.5～3.5 | ≤0.5 | ≤0.25 | 1.3 | / | 0.5 | 1.0 | 0.3 | / | / | ||
| ADC12 | JIS H5302 | 9.6～12.0 | ≤0.3 | 1.5～3.5 | ≤0.5 | / | 1.3 | / | 0.5 | 1.0 | 0.2 | / | / | |||
| 105002 | 105002 | 7.5～12.5 | ≤0.15 | 2.0～4.0 | 0.2～0.6 | ≤0.20 | 0.8 | / | 0.30 | 0.50 | 0.10 | / | 0.50 | |||
| EN AC-AlSi11Cu2(Fe) | DIN EN 1706 | 10.0～12.0 | ≤0.30 | 1.5～2.5 | ≤0.55 | ≤0.25 | 1.1 | 0.15 | 0.45 | 1.7 | 0.25 | 0.05 | 0.25 | |||
Post time: Apr-17-2025