
At Align MFG, we specialize in providing grey and ductile iron sand casting services,
Our expertise in these materials ensures that each project we undertake meets the highest standards of precision and durability. Whether you're handling large-scale industrial projects or specialized machining projects, our sand casting process is tailored to deliver results that align with your specific needs.

Why Choose OEM Precise Grey and Ductile Iron Sand Castings?
Grey Iron Applications: Known for its excellent machinability and wear resistance, grey iron is ideal for the oil and gas industry.
Ductile Iron Applications: Ductile iron, with its superior strength and toughness, is especially suitable for parts that are subjected to high stress.
Align Manufacturing has a proven track record of successfully completing past projects using ductile or grey iron in our India factory.
Material | Key Properties | Typical Standards |
---|---|---|
Grey Iron | Excellent machinability, vibration damping, high compressive strength | ASTM A48, Class 30/35/40 |
Ductile (S.G.) Iron | High tensile strength, ductility, fatigue and impact resistance | ASTM A536, Grade 65-45-12 / 80-55-06 |
Grey iron, named for its graphite flake microstructure, offers outstanding vibration damping, compressive strength, and thermal conductivity. It’s ideal for components where structural stiffness and machinability are critical.
Common Applications:
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Pump housings
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Valve bodies
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Gearbox housings
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Compressor components
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Engine blocks and machine bases
Benefits:
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Cost-effective
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Excellent machinability
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Thermal and acoustic damping
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Stable under compressive loads
Ductile iron, also called Spheroidal Graphite Iron, is engineered for parts needing higher tensile strength, elongation, and fatigue resistance. Its spheroid-shaped graphite structures offer superior mechanical properties compared to grey iron.
Common Applications:
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Pipe fittings and pressure vessels
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Hydraulic components
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Gear housings
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Heavy-duty automotive and truck parts
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Structural machine frames
Benefits:
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High strength-to-weight ratio
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Excellent impact resistance
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Good fatigue durability
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Suitable for heat-treated applications
We specialize in producing industrial-grade grey and ductile iron components through precision sand casting:
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Typical Part Weights: 500 kg to 2 tons
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Standard Materials: ASTM A48 (grey iron), ASTM A536 (ductile iron)
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Surface Finish: As-cast or machining-ready
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Post-Processing: Heat treatment, shot blasting, machining, and painting (upon request)
For extremely large parts exceeding this range, click here to learn about our Large Scale Sand Casting capabilities.
Align MFG's Commitment to OEMs
At Align MFG, we understand the critical role that cast grey and ductile iron parts play in OEM manufacturing. Our sandcasting process is meticulously designed to meet the stringent requirements of various industries, ensuring that each component we produce is not just a part, but a pivotal piece in the larger machinery of our clients' projects.
Air Pedestal
- Trucking and Trailers
- Sand Cast
- 65-45-12 DUCTILE IRON
- Powder Coated
- 35,000 per year
- India
Manhole Cover (Lid and Rim)
- Oil and Gas
- Sand Casting
- Grey Iron
- CED with Powder Coat. 1000 hours Salt Spray Resistant
- 15,000 per year
- India
Spill Base Top
- Oil and Gas
- Sand Cast
- Ductile Iron
- CED with Powder Coat. 1000 hours Salt Spray Resistant
- 8,000 per year
- India
Our Sandcasting Process: Precision and Quality at Every Step
Material Selection: We start by selecting the highest quality grey and ductile iron, ensuring a strong foundation for your project.
Mold Making: Utilizing engineering techniques, we create precise molds that capture every detail of your design.
Casting: Our skilled technicians carry out the sandcasting process, ensuring optimal pouring techniques and temperature control for defect-free castings.
Finishing: Each casting undergoes the necessary machining and coating process as per the drawing.


Align MFG: Your Strategic Partner Beyond Casting
Western-Owned, Local Expertise: Leveraging our facilities in Vietnam, Thailand, and India, we bring our US-based clients the best of global manufacturing with the convenience of local expertise.
Quality Assurance: Every step of our process is monitored for quality, ensuring that your components meet both industry standards and your specific requirements.
Efficient Logistics: With our strategic locations and expert logistics team, we ensure timely and safe delivery of your projects, reducing downtime and enhancing productivity.
Are you ready to discuss your Grey and Ductile SG Iron Sand Casting Solutions project with Align MFG? Our team is eager to assist you. Contact us today to request a quote or learn more about how our Grey and Ductile Iron Sand Casting Solutions services can impeccably meet your project requirements. We're here to collaborate with you to achieve precision in every aspect of your projects.