Grey iron and ductile iron sand castings for housings, brackets, manifolds, and heavy industrial parts. Low cost per pound at volume from ISO 9001 and IATF 16949 certified foundries. The U.S. team runs grade selection and quality documentation.
Review core cast iron castings capabilities, materials, tolerances, inspection methods, and production requirements before requesting a quote.
See Our Process Or same-day technical feasibility review
Share your part details, drawings, or CAD files. Redstone will review the requirements and confirm feasibility, tolerances, materials, lead time, and next steps.
Final specifications are confirmed during the technical feasibility review.
Redstone helps hardware teams move from released drawings to repeat production with documented quality, competitive unit costs, and engineering support from the U.S.
ISO 9001:2015 and IATF 16949 active at every foundry on the program list. Statistical process control from first pour. Third-party inspection at origin before every shipment. Audit-ready documentation included.
Your RFQ goes to a specific foundry and a dedicated U.S. program manager, not a bidding portal. Redstone owns the facility relationship and the quality outcome. One U.S. point of contact from quote through receiving dock.
Grade selection, DFM review for wall thickness and feeding, and PPAP submission run from the U.S. team. Melt, pouring, and inspection run at the certified foundry. You get one invoice and one contact in your time zone.
Redstone supports production metal parts across automotive, electronics, industrial equipment, and consumer hardware programs.
Pump housings, gearbox bodies, machine frames, and structural castings. Grey iron for damping and stiffness. Ductile iron for load-bearing components.
Brackets, manifolds, brake components, and powertrain housings. PPAP and first-article documentation standard. Active programs with IATF 16949 certified foundries.
Large frames, counterweights, hydraulic bodies, and wear parts. Ductile iron for shock and fatigue. Castings up to 500 kg per piece on standard equipment.
Iron housings, brackets, and enclosures for hardware and equipment programs. Volume from 500 to 100,000+ units per year.
From initial drawings to final delivery, Redstone keeps each stage clear, documented, and aligned with production requirements.
Each handoff is documented. No stage moves forward until drawings, materials, and production requirements are confirmed with the customer.
Send part files, target grade or application, and annual volume. Same-day technical feasibility review. Full quote within 48 hours, including pattern, freight, and customs where applicable.
Review the quote and production plan. Sign the production agreement. Redstone confirms grade, facility assignment, pattern timeline, and first-article schedule.
Pattern and tooling take 3 to 5 weeks. First-article samples ship to your engineering team for sign-off. PPAP package available on regulated programs.
Volume iron casting runs at the assigned IATF 16949 certified foundry. Statistical process control applied from first pour. Lot traceability and material certification maintained end to end.
Third-party inspection at origin against your approved drawings and tolerances. Dimensional report, visual inspection, and material certification included in every shipment. US customs brokerage handled. Landed cost on your dock matches the number Redstone quoted.
Redstone supports production cast iron castings programs for OEMs and engineering-led teams that require repeatable quality, controlled costs, and reliable part production.
Production components for automotive Tier 1 and Tier 2 suppliers and specialty OEM programs, run to IATF 16949 in certified facilities with U.S. engineering oversight from quote through delivery.
Production cast iron castings components for heavy machinery programs, run to documented quality with U.S. engineering oversight.
Production cast iron castings components for oil and gas programs, run to documented quality with U.S. engineering oversight.
Production cast iron castings components for construction programs, run to documented quality with U.S. engineering oversight.
Production cast iron castings components for agriculture programs, run to documented quality with U.S. engineering oversight.
Production cast iron castings components for energy programs, run to documented quality with U.S. engineering oversight.
Not sure if cast iron castings fits your part?
Additional manufacturing processes that can support die casting programs, secondary operations, and production-ready metal parts.
Aluminum and zinc die casting for high-volume, dimensionally precise components.
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3, 4, and 5-axis milling and turning from ISO 9001 and IATF 16949 certified facilities.
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Laser cutting, bending, stamping, and welding for precision sheet metal components.
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Stainless, aluminum, and alloy lost-wax castings with fine detail and tight tolerance.
View capabilityShare your part requirements and Redstone can help determine the right manufacturing path.
Share your drawings, CAD files, or production requirements. Redstone will review feasibility, materials, tolerances, lead time, and the best manufacturing path for your program.
How part geometry, annual volume, and tolerance decide which casting process fits your program, with the cost and lead time tradeoffs spelled out.
Casting vs machining compared across cost, tolerances, volume, and lead time. Learn which manufacturing process fits your metal part production needs.
Metal injection molding design requires uniform wall thickness, proper gating, and sintering shrinkage planning. Learn the key MIM part design rules before you commit to tooling.
CNC machining tolerances range from ±0.005" standard to ±0.001" tight. Learn the standards, callout types, and charts that keep rework and cost under control.
2024 and 6061 are both workhorse aerospace alloys, but they serve opposite needs: 2024 delivers high strength and fatigue resistance under tension, while 6061 offers superior corrosion resistance, weldability, and fabrication versatility.
7075 aluminum nearly doubles the tensile strength of 6061 and dominates aerospace tooling, but it is generally considered non-weldable and harder to form. 6061 offers superior corrosion resistance, weldability, and fabrication versatility for a broader range of industries.
6061 aluminum can be bent, but its precipitation-hardened T6 temper makes it prone to cracking if handled without the right techniques. Proper bend radii, annealing, and controlled heating are all essential for successful results.
A36 and AR500 are two common steel grades with very different strengths. A36 is valued for workability and low cost; AR500 is engineered for extreme wear and abrasion resistance.
ISO 9001, IATF 16949, PPAP, and the inspection records that should ship with every production lot. A checklist for evaluating a supplier.
Overseas production delivers cost savings, but only with proper U.S. oversight. Learn how a single American contact simplifies the entire process.
Weighing the benefits and drawbacks of outsourcing manufacturing to countries like Mexico, China, and India. Learn how to evaluate partners and protect your supply chain.
Don’t see your question? Request a quote and our engineering team will answer it.
Grey iron for housings, frames, and manifolds where damping, machinability, and low cost at volume matter most. Ductile iron for brackets, gears, and load-bearing parts that carry impact or fatigue and need to deform before they fracture. Send your model and Redstone confirms the grade at the feasibility review.
Grey iron in ASTM A48 Classes 25 through 40. Ductile iron in ASTM A536 grades 65-45-12, 80-55-06, and 100-70-03. Other grades are available on a per-program basis. Send the spec and Redstone confirms grade availability at the quoting stage.
500 units per cycle for cast iron. $50,000 minimum program value. Volume programs only. Multi-year preferred.
Iron melts at a lower energy cost than most alloys, sand molds are inexpensive and reusable in pattern form, and the process scales cleanly to high volume. That keeps cost per pound low while holding the strength and damping the part needs. Redstone confirms the landed cost per piece at the quoting stage.
Yes. Send the existing pattern drawings, PPAP package, and current supplier quote. Redstone assesses pattern transfer feasibility, runs a parallel quote with the certified foundries, and projects landed-cost savings and lead-time impact before you commit. Existing patterns are often re-usable in Redstone equipment.
