# A356 Aluminum Casting Manufacturer in China: What OEM Buyers Should Check Before Sending an RFQ
If you are sourcing a structural or pressure-conscious aluminum casting, A356 is usually on the shortlist. It offers a strong balance of castability, corrosion resistance, and response to T6 heat treatment.
The harder part is choosing the #0f1e3d]">right A356 aluminum casting manufacturer in China. Start with the basics: review Bohua's [A356 material page, #0f1e3d]">[gravity casting process, and #0f1e3d]">[Auto Parts catalog.
What Buyers Should Check
1. Process fit
Confirm the supplier supports gravity casting, T5/T6 heat treatment, and CNC machining.
2. RFQ inputs
A serious manufacturer asks for drawing files, annual volume, machining scope, and leak or pressure requirements.
3. Machining allowance
For intake manifolds and pump housings, machining stock should be discussed during tool design.
4. Relevant part history
Look for products such as #0f1e3d]">[Automotive intake manifolds, #0f1e3d]">[Truck intake manifolds, or #0f1e3d]">[Pressure-tight pump housings.
5. Commercial execution
A good Ningbo supplier quotes tooling, sample timing, and export support clearly.
FAQ
Is A356 better than ADC12 for structural parts?
Often yes when the program values T6 heat treatment. See #0f1e3d]">[A356 vs ADC12.
Bottom Line
When buyers search for an #0f1e3d]">A356 aluminum casting manufacturer in China, they want a supplier that can review drawings, quote tooling, support T6, manage machining, and deliver repeat production. [Send your RFQ.