ADC10 die-cast aluminum alloy: a general-purpose alloy with high silicon and high copper that offers high strength, excellent castability and economy.
Date: 2026-04-15 Category:Blog Views: 1519
Article Catalog
- Standards and grades for ADC10
- ADC10 Physical and Mechanical Properties Parameter Table (Die-Cast State, Typical Values)
- ADC10 Performance Enhancement Path and Technical Features
- ADC10 international grade
- ADC10 in the die casting industry
- ADC10 Aluminum Alloy Frequently Asked Questions
- 📊 Extended column: ADC10 vs. ADC12, ADC1 comparative analysis
As part of the Japanese Industrial Standards (JIS)High-silicon, high-copper general-purpose die-cast aluminum alloyThe classic representation of theADC10 by means ofHigh mechanical strength, excellent casting fluidity, good dimensional stability, and outstanding economicsis known for. The alloy passesSilicon (Si) for casting performance, copper (Cu) as the main strengthening elementIn the casting state, it can obtain high strength and hardness, while maintaining good die-casting processability, is the production ofHigh-volume, complex shape, high strength requirements and cost-sensitive general-purpose die castingsIt is the preferred material in automobiles, motorcycles, electrical and electronics, general machinery and other fields with a wide range of applications.
Standards and grades for ADC10
- JIS Standard Grades: According to the Japanese Industrial Standard JIS H 5302, the grade is ADC10ADC“ stands for ”Aluminum Die Casting“. ”ADC“ stands for ”Aluminum Die Casting" and "10" is one of the most widely used general grades in the series.
- Core features:High silicon content (7.5-9.51 TP3T) Provides excellent casting fluidity and resistance to hot cracking;Medium copper content (2.0-4.01 TP3T) Provides significant solid solution strengthening;Not heat treatableThe performance is entirely dependent on the as-cast organization, with an emphasis on productivity and cost-effectiveness; it is an early version of ADC12, with a composition similar to ADC12 but with a slightly wider range of copper content.
ADC10 Aluminum Alloy Composition Table (based on JIS H 5302 typical requirements)
| elemental | Content range (wt%) | functional role |
|---|---|---|
| Silicon (Si) | 7.5-9.5 | Main alloying elements. Provides good casting fluidity, resistance to thermal cracking and airtightness. |
| Copper (Cu) | 2.0-4.0 | Core Strengthening Elements. Formation of Al₂Cu reinforced phase significantly enhances cast strength and hardness. |
| Iron (Fe) | ≤ 1.3 | Prevents mold sticking during die casting, but needs to be controlled to ensure mechanical properties. |
| Magnesium (Mg) | ≤ 0.3 | Strictly controlled to maintain non-heat treatable properties. |
| Zinc (Zn) | ≤ 1.0 | Impurity elements that improve strength in trace amounts. |
| Manganese (Mn) | ≤ 0.5 | Neutralizes the harmful effects of iron. |
| Nickel (Ni) | ≤ 0.5 | Available. |
| Aluminum (Al) | tolerance (i.e. allowed error) | Substrate material. |
ADC10 Physical and Mechanical Properties Parameter Table (Die-Cast State, Typical Values)
| Performance indicators | Numerical range | Comparative analysis (vs ADC12) | Core Advantages |
|---|---|---|---|
| intensity | 2.68-2.71 g/cm³ | Similar to ADC12 | - |
| Tensile strength (Rm) | 280-320 MPa | Comparable to ADC12 | Core Advantages: High strength in cast form to meet most structural component requirements. |
| Yield strength (Rp0.2) | 150-180 MPa | Comparable to ADC12 | Good carrying capacity. |
| Elongation (A) | 1.5-3.0% | Comparable to ADC12 | Average plasticity is the price to pay for strength. |
| Brinell hardness (HB) | 75-90 | Comparable to ADC12 | Higher hardness and good abrasion resistance. |
| corrosion resistance | mediocre | Comparable to ADC12 | Higher copper content and average corrosion resistance. |
| Casting mobility | talented | Comparable to ADC12 | Core Advantages: High silicon ensures excellent mold filling capacity. |
| machinability | general | Comparable to ADC12 | Higher silicon content and medium tool wear. |
| hot treatment (e.g. of metal) | Not heat treatable | Not heat treatable | Low cost and simple process. |
ADC10 Performance Enhancement Path and Technical Features
The ADC10 is designed with the concept of “High strength from high copper, high castability from high silicon”：
- Solid Solution Strengthening of Copper: The copper content of 2.0-4.01 TP3T is the core of ADC10 to obtain high strength. Copper forms the Al₂Cu phase in aluminum, which significantly increases cast strength and hardness through solid solution strengthening. The higher the copper content, the higher the strength, but with a corresponding decrease in elongation and corrosion resistance.
- Processability of Silicon Guaranteed: Silicon content of 7.5-9.5% makes its fluidity among the best in die-casting aluminum alloys, low shrinkage, low tendency to thermal cracking, suitable for molding complex thin-walled structures. The presence of silicon also partially improves wear resistance.
- Not heat treatable: Like ADC12, ADC10 does not contain sufficient age strengthening elements such as magnesium.Unable to improve strength by T5/T6 heat treatment. This makes it a simplified production process, cost-controlled and suitable for mass production.
- Cost Advantage: ADC10 is widely used, with relatively low raw material costs and high production stability, making it one of the most cost-effective materials in the die casting industry.
ADC10 international grade
ADC10 has a clear international correspondence as a general purpose die casting alloy:
| (an official) standard | grades | note |
|---|---|---|
| Japan JIS | ADC10 | - |
| ASTM, USA | A380.0 | Highly consistent composition (Si 7.5-9.5%, Cu 3-4%) |
| China GB | YL112 (YZAlSi9Cu4) | Composition close to ADC10 |
| EU EN | EN AC-46000 (AlSi9Cu3) | similar in composition |
| Korea KS | ADC10 | identical brand |
ADC10 in the die casting industry
based on itsHigh strength, excellent castability, good economycharacteristics of the ADC10, the ADC10 is mainly used in the following areas:
- Automotive parts (largest application)
- Shell type: Transmission housing, clutch housing, oil pan, engine mounts.
- structural member: Steering gear housing, water pump housing, generator bracket.
- interior components: Door lock housings, seat adjuster parts.
- Motorcycles and General Dynamics
- Engine components: Cylinder head covers, crankcase covers, carburetor housings.
- transmission part: Transmission housing, sprocket cover.
- electrical and electronics
- Shell type: Motor housings, power supply housings, junction boxes, circuit breaker housings.
- Thermal components: LED heat sinks, power module housings (strength prioritized over thermal conductivity).
- General Machinery and Hardware
- Pump and valve housings: Oil pumps, water pumps, pneumatic valve bodies.
- power tool: Electric drill housings, angle grinder gearboxes.
- Furniture Hardware: Door handles, hinges, locks.
ADC10 Aluminum Alloy Frequently Asked Questions
Q1: What is the main difference between ADC10 and ADC12? How to select the type?
- Here's the core comparison:
- ADC10: Silicon 7.5-9.5%, Copper 2.0-4.0%.Wider range of ingredientsThe grade is an early general-purpose grade with some properties slightly lower than ADC12.
- ADC12: Silicon 9.6-12.0%, Copper 1.5-3.5%.Higher silicon content and superior copper contentIt has better castability and more stable performance, and is currently the mainstream general grade in the JIS standard.
- In practice, ADC10 and ADC12 are often regarded as interchangeableThe ADC12 has a better overall performance and stability, but the ADC12 has a better overall performance and stability. When selecting the type, if there is no special requirement, give priority to ADC12.
Q2: Can ADC10 be used instead of ADC12?
- Yes, but be awareThe composition range of ADC10 overlaps with ADC12, and many suppliers consider ADC10 and ADC12 to be the same material. However, ADC10 has a slightly lower upper silicon content limit and is slightly less capable of filling complex thin-walled parts. Where very high castability is required, ADC12 is preferred.
Q3: Why is ADC10 not heat-treated?
- because ofVery low magnesium content (≤0.3%)In the case of Mg₂Si, it is not possible to form sufficient Mg₂Si strengthening phases. Carrying out T6 solid solution treatment not only fails to enhance the strength significantly, but may also lead to blistering due to the expansion of internal pores. Therefore, the performance of ADC10 is completely dependent on the as-cast organization, and the production process is simple and cost-controlled.
Q4: How is the corrosion resistance of ADC10? Does it need surface treatment?
- mediocre. The higher copper content makes it susceptible to galvanic corrosion in humid environments. For use outdoors or in wet environments, theSurface protection is mandatoryThe product can be used in a wide range of environments, such as painting, electrophoresis, anodic oxidation (with grayish film), etc. Indoor dry environment can not be treated.
Q5: What is the welding repair performance of ADC10?
- Lower middle. Higher copper content, welding thermal cracking tendency is more obvious. Argon arc welding filler welding, need to bePreheating (150-200°C)The choice of suitable aluminum-silicon-copper welding wire, post-welding forstress reliefThe following are some examples of the types of welds that should be used. For important load-bearing parts, filler welding should be avoided as much as possible.
Q6: What is the cutting and machinability of ADC10?
- general. Higher silicon content (7.5-9.51 TP3T) forms hard silicon particles that cause abrasive wear on the tool. Good results can be obtained using coated carbide tools with higher cutting speeds and moderate feeds.
📊 Extended column: ADC10 vs. ADC12, ADC1 comparative analysis
| comparison dimension | ADC10 (Al-Si-Cu) | ADC12 (Al-Si-Cu) | ADC1 (High Silicon) |
|---|---|---|---|
| Silicon (Si)% | 7.5-9.5 | 9.6-12.0 | 11.0-13.0 |
| Copper (Cu)% | 2.0-4.0 | 1.5-3.5 | 0.5-1.5 |
| tensile strength | 280-320 MPa | 280-310 MPa | 230-280 MPa |
| elongation | 1.5-3.0% | 1.5-3.0% | 1.5-3.0% |
| Casting mobility | talented | excellent | excellent |
| corrosion resistance | mediocre | mediocre | general |
| (manufacturing, production etc) costs | lower (one's head) | lower (one's head) | lower (one's head) |
| typical application | Automotive housings, general-purpose parts | Automotive housings, electronic parts | Complex thin-walled parts, decorative parts |
Selection Quick Guide:
- Select ADC10: General-purpose structural parts with high strength requirements and medium requirements for castability.
- Select ADC12: The QuestOptimal castability, performance stability, is the most versatile option currently available.
- Select ADC1: not demanding in terms of strength, but needingExtreme castabilityof complex thin-walled parts.
