Zinc and Its Alloys

Zinc and its alloys are commonly used in precision casting, characterized by good fluidity, a low melting point, and excellent corrosion resistance. Zinc alloys enable precise filling of complex molds during the casting process, making them suitable for parts requiring high precision and excellent surface quality. Zinc alloys are widely used in the electronics, automotive, and consumer goods industries, often in the manufacture of housings, connectors, and auto parts.

In precision casting, zinc alloys are primarily used in die casting and investment casting processes, offering high precision and high production efficiency. Their low melting point helps reduce production costs, and their excellent surface finish properties give them significant advantages in high-volume production.

Get a Free Quote

Common Material Grades of Zinc And Its Alloys

Alloy Grade	Alloy Name	Material Properties	Main Application Industries	Sample Widget
ZL2	Zl2 Alloy	Excellent castability, good strength and hardness, good corrosion resistance	Automobile, electronics, electrical, precision casting	Electronic component housings, auto parts
ZL3	Zl3 Alloy	Excellent castability and good mechanical properties with medium strength	Precision casting, electronic device manufacturing	Precision gears and mechanical parts
ZL5	Zl5 Alloy	High strength, strong wear resistance and good corrosion resistance	Aerospace, automotive parts	High-strength frames, automobile engine casings
ZL8	Zl8 Alloy	Low casting temperature, good fluidity and surface finish	Precision casting, automobiles, electronics	Precision casting of power tool housings and transmission system components
ZA8	ZA8 Alloy	High strength, good corrosion resistance, suitable for high pressure casting	Automotive, electrical, aerospace	Electronic connectors, high-pressure casting parts
ZL27	Zl27 Alloy	Excellent strength, corrosion resistance and wear resistance	Aerospace, automotive	High-strength automobile engine parts
ZD9	ZD9 Alloy	Excellent corrosion resistance and strength, good heat treatment	Marine engineering, precision casting	Ship parts, marine equipment housings
ZD8	ZD8 Alloy	Good casting properties, high tensile strength and ductility	Precision casting, electronics, instruments	Electronic product housings, medical equipment components
ZL13	Zl13 Alloy	Good castability and corrosion resistance, high strength and hardness	Aerospace, automotive, precision casting	Aviation parts, automotive precision casting parts

Get a Free Quote

Zinc and Its Alloy Casting Process

Investment Casting

Applicability: Suitable for casting zinc and its alloys, but is generally used for precision castings, especially when high precision and complex geometry are required. Investment casting can achieve very detailed designs, including complex internal cavities and precise surface finishes.

Advantages:
· High-precision, low-volume products: Small precision parts in the aviation, automotive, and medical device industries.
· Excellent surface finish: Suitable for zinc alloy parts with complex shapes, thin walls, and high wear resistance.
· Rapid development and customization: Customized products requiring fast delivery.

Sand Casting

Applicability: Sand casting is a traditional and widely used casting process suitable for zinc alloy casting, especially in the production of larger castings. Sand casting molds are relatively low cost, suitable for small or medium batch production, and can produce larger castings.

Advantages:
· Medium-sized, non-precision castings: Suitable for larger, simple-shaped parts such as automotive components and electrical enclosures.
· Lower costs: Suitable for high-volume production where cost-effective products are required, especially in high-volume production.

Die Casting

Applicability: Die casting is very suitable for the efficient large-scale production of zinc and its alloys, especially for the mass production of high-precision and thin-walled castings. Zinc alloys have excellent fluidity and low melting points during the die casting process, making them very suitable for the rapid production of high-quality castings.

Advantages:
· Large-Scale Production and Precision Castings: Suitable for mass production of high-precision, complex-shaped castings, such as electronic device housings, home appliance components, and automotive parts.
· High Production Efficiency: Suitable for industries with demanding lead times, such as consumer electronics, automotive, and industrial equipment.

3D Printing

Applicability: 3D printing technology is suitable for small-batch, high-complexity, and rapidly developed castings, and is particularly suitable for customization and prototyping. Although 3D printing casting is still in its development stage, in some cases, it can be used to produce complex zinc alloy parts.

Advantages:
· Small-batch customization and rapid prototyping: Zinc alloy parts that require rapid production, such as prototype testing and design verification.
· Complex shapes and innovative designs: These applications require complex castings, especially those requiring rapid modification and verification during the design phase.

Start Your Project with Leierwo

1. Submit Your Inquiry

Send your CAD drawings and 3D files via email, specifying material grade, order quantity, surface finish, or any other relevant details.

2. Cost Calculation

Once we receive your design, our engineering team will carefully evaluate the drawings and calculate the price based on actual production costs as soon as possible.

3. Start Production

Upon pricing approval, our production team will prepare the materials and schedule production promptly.Leierwo always ensures on-time delivery.

4. Arrange Delivery

After production is completed, we will provide packaging details and arrange shipment via sea or air. We support global shipping for every order.

FAQ

Q1. Are you a trading company or a manufacturer?

We are a factory with over 20 years of experience in casting and machining. We have rich expertise in this industry. If you come across suppliers claiming to produce castings in a wide range of materials (such as steel, iron, stainless steel, copper, etc.), they are likely trading companies. If you see workshops actively producing parts, you can be assured that we are a genuine manufacturer.

Q2. Can you quote based on 3D drawings?

Yes, as long as we receive CAD files or compatible 3D models that can be viewed with software like First Quote or Firstcut browser, we can provide a quotation. Please note that 2D drawings alone are insufficient for manufacturing precision components.

We support 3D CAD models from SolidWorks (.sldprt), ProE (.prt), and other CAD systems, commonly in IGES (.igs), STEP (.stp), ACIS (.sat), or Parasolid (.sat) formats.

Q3. How do you handle RFQs (Request for Quotation)?

We have an internal service system that responds to emails within 4 hours. If your request is urgent, please specify it in your email so we can prioritize your inquiry.

Q4. What is your typical lead time?

For rapid prototyping:
Silica sol casting: 20–30 days
Sand casting: 7–10 days
For mass production with machining included, the typical lead time is 45–60 days.
More complex parts may require a different delivery schedule.

Q5. Do you provide samples? Are they free?

Yes, we provide samples based on your drawings for you to confirm structure and quality. If the sample does not meet your requirements, we will replace it free of charge until it is qualified.

Q6. What payment methods do you accept?

We accept T/T (bank transfer), Alipay, credit card, etc. Typically, we require a 30% down payment upon order confirmation and the remaining 70% before shipment. For custom parts with complex requirements, additional pricing terms may apply.

Q7. How do you ensure quality control?

We have a comprehensive quality control system that covers every step, from raw material procurement to machining processes and final inspection. For critical components, we strictly follow drawing standards and customer specifications.

All customer data is kept confidential. Only trained engineers are authorized to handle production orders. Third-party inspection or factory audits are welcome, or you may use our in-house quality team for final inspection.

Q8. Do your products come with a warranty?

Yes, we guarantee that all materials used are 100% genuine and as specified.

Q9. How do you view your relationship with customers?

We value long-term cooperation and support our customers’ production needs.

We believe every honest customer is a friend, and we treat our partnerships sincerely—building friendships and strong teams regardless of where our customers come from.