A357 Aluminum Casting Alloy

Linsy A357 is a premium aluminum-silicon casting alloy known for its outstanding combination of high strength, excellent weldability, and superior pressure tightness. Its fine microstructure and low iron content ensure minimal porosity and high integrity. Commonly heat-treated to the T6 temper, it provides reliable performance in highly stressed, thin-walled castings.

Description

Linsy A357 is a premium aluminum-silicon casting alloy known for its outstanding combination of high strength, excellent weldability, and superior pressure tightness. Its fine microstructure and low iron content ensure minimal porosity and high integrity. Commonly heat-treated to the T6 temper, it provides reliable performance in highly stressed, thin-walled castings.

Application of A357 Aluminum Casting Alloy

  • Aerospace Components (Impellers, Housings)
  • Aircraft Pump Parts
  • High-Performance Automotive Parts
  • Compressor Wheels
  • Electrical Components

Chemical Composition

Element Percentage %
Si 6.5-7.5
Fe 0.15 Max
Cu 0.1 Max
Mn 0.15 Max
Be 0.04-0.35
Zn 0.003-0.007
Ti 0.1-0.2
Others/Each 0.03 Max
Others/Total 0.10 Max
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Mechanical Properties and Tempers

Aluminum A357 T6
Density 2.65–2.71 g/cm³
Melting Range 549–626 °C
Thermal Conductivity 150–160 W/m·°C
Tensile Strength, Ultimate 306-332  MPa
Tensile Strength, Yield 244–263 MPa
Elongation at Break % 3.8-4.6%
Fatigue Strength (at 10⁷ cycles): 76.5–93.5 MPa

Feature

  • High strength: When heat-treated to the T6 temper, A357 is one of the strongest sand-cast aluminum alloys available.
  • Excellent castability: The silicon content in A357 improves its fluidity during the casting process, allowing it to be formed into complex and intricate parts.
  • Corrosion resistance: It exhibits good corrosion resistance, even in harsh environments like marine applications.
  • Weldability: A357 has good welding characteristics, but it typically requires a post-weld heat treatment

 

Why Choose Linsy A357 Aluminum?

Linsy Aluminum is a leading supplier of aluminum products. We provide goods for several industries. These include aerospace, general engineering, automotive, shipbuilding, and special industrial uses.

We really care about quality and the environment. We prove this with our certifications. We hold ISO 9001:2008 for quality management. We also hold ISO 14001:2004 certification for environmental management. Finally, we have OHSAS 18001:2007 for health and safety at work.

Linsy Aluminum ships its products to Europe and many other locations. This includes South Africa, Brazil, Singapore, Turkey, Japan, South Korea, and several countries in South Asia.

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FAQ

We are both a manufacturer and a distributor.
With over 20 years of experience in the aluminum industry, we have established ourselves as a reputable Chinese aluminum factory and distributor.
Whether you require standard aluminum products or customized solutions, we have the capabilities to fulfill your requirements efficiently and effectively.

Our aluminum products meet international quality standards such as ISO9001, SGS, and ASTM etc…
We prioritize quality in every step of production to ensure the highest product quality.
Our aluminum products meet and serve various industries’ standard, including construction, automotive, shipbuilding, marine engineering, packing, aerospace, electronics, and among others.

Yes, we offer customized aluminum products tailored to your specific requirements.

We accepted small batch order, and thus we don’t necessarily require MOQ to most of our standard aluminum products.

We accept various payment methods, including T/T, and L/C. Payment terms can be discussed based on your order.

Yes, we can provide samples of our aluminum products. Please request samples, and we will be happy to assist you.
We also very welcome customers from all over the world to visit our factories and warehouses in China.

We offer a thorough warranty policy. If there are any issues regarding the quantity or quality, the buyer need to report them within 60 days of receiving the goods at the discharging port.
If the complaint is valid, we will resolve it within 30 days by providing the agreed compensation amount.
For packaging problems resulting from rough handling during loading and unloading, please contact the insurance company directly.

Lead times vary by product and order quantity.
Please contact us for estimated lead times for your specific order. 

All our products are strictly tested for quality before packaging, and unqualified products will be destroyed. 

We have exported to America, India, Vietnam, United Arab Emirates, Singapore, Malaysia, Indonesia, United Kingdom, Australia, Dubai, Canada, Brazil, Chile, Colombia, Kenya, and other African countries.
We have extensive experience in international logistics and can arrange shipping to your desired destination efficiently and cost-effectively.

Linsy Advantages

Linsy Aluminum is a leading supplier of aluminum processing products, serving diverse industries including aerospace, general engineering, automotive, marine, shipbuilding and other specialized industrial applications.

We are committed to maintaining the highest standards of quality and environmental responsibility, as demonstrated by our certifications: ISO 9001:2008, ISO 14001:2004 and SGS.

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