The Centrifugal Casting Foundry That Balances Performance and Cost

Spuncast combines specialized centrifugal casting with integrated capabilities like metallurgy, machining, and logistics. The result: High-performance steel tubing at a lower total cost of ownership.

Learn more about our pricing, including our free shipping for first-time customers!

Get Pricing
Years of Operation
0 +
Number of Alloys
0 +
Scrap Rate
< 0 %
HSLA Specialization
0 %
Permanent Molds
0 +

Helping Manufacturers Find Solutions to Steel Tubing Challenges

Manufacturers turn to Spuncast when they run into these typical steel-tubing issues:

1

Off-the-shelf tubing doesn't meet your specifications

Standard mill sizes and limited alloy options often fail to meet engineered performance requirements. We produce custom tubing from 2.5” to 44” outside diameters, and 200 to 18,000 pounds. We can select from more than 200 alloys to match specific operating conditions.

2

Supply chain instability is affecting your production and pricing​

Macro-economic factors are typically out of everyone’s controls. But we source more than 95% of materials domestically from 30+ certified suppliers. This network provides supply flexibility and reduces exposure to tariffs, import delays, and global shipping disruptions.

3

Hidden costs keep bloating your price tag​

How well a foundry handles its operation can have a huge impact on your price. Our permanent mold inventory, integrated secondary operations, metallurgical verification, and shipping services control the variables that often drive unnecessary cost.

4

Your current tubes — or foundry — aren't performing​

With over fifty years in centrifugal casting, we eliminate that uncertainty, delivering consistent wall thickness, stronger material integrity, and predictable machining.

Centrifugal Casting Creates the Advantage When the Foundry Executes It Correctly

Design engineers choose centrifugal casting because it delivers measurable structural benefits over static methods:
  • Up to 10–15% stronger mechanical properties from improved metal density
  • 70–90% usable material yield, reducing waste and excess machining
  • Uniform wall thickness and concentricity
  • Reduced internal defects and longer service life

In-Depth: Find out more about our centrifugal casting process and performance specs.

We specialize exclusively in centrifugal steel casting, optimizing every step — from alloy selection to machining — for tubular components.

The centrifugal casting process alone does not guarantee results. Performance and cost discipline depend on how the foundry manages and integrates its capabilities. That’s where Spuncast shines.

Integrated Capabilities That Make Performance and Cost Control Possible

Smarter Alloy Selection for Specific Performance Requirements

Our metallurgical team selects from more than 200 alloys and verifies chemical and mechanical properties through in-house testing. This includes:
  • High-strength, low-alloy (HSLA) steel
  • Stainless grades
  • Duplex grades
  • Precipitation-hardening grades
We are one of the few centrifugal steel foundries specializing in high-strength, low-alloy (HSLA) steel. These grades represent approximately 65% of our total production, providing deeper expertise and cost efficiency than occasional producers.
The strongest material backed by an unlimited warranty
The strongest material backed by an unlimited warranty

Permanent Mold Inventory That Reduces Tooling Cost and Lead Time

We maintain more than 1,000 permanent molds with outside diameters from 2.5” to 44”. Permanent tooling reduces:
  • Lead times
  • Tooling expense
  • Production variability
  • Scrap and dimensional inconsistency
It also supports repeatable documentation across recurring production programs, improving long-term cost predictability.

In-House Secondary Operations for Improved Dimensional Control

Heat treating and CNC machining are performed on-site to maintain dimensional control and eliminate inter-company variability. They provide:
  • Controlled tolerances
  • Reduced handling and transfer delays
  • Consistent part-to-part performance
We intentionally maintain production headroom — typically operating at approximately 60% capacity — allowing us to scale with demand increases without compromising delivery performance.
Processes that shorten supply chain to control costs
Spuncast tubes for Hoover Dam

Quality, Testing & Traceability Built Into Every Casting

We produce to applicable ASTM A series standards and support ASME requirements when required. Each casting is stamped with a unique heat number immediately after pouring, enabling full traceability to melt chemistry, mechanical test results, heat treat records, and inspection data.

This structure supports regulatory compliance, customer audits, and long-term verification without uncertainty.

Spuncast Shipping Services Simplify Delivery and Reduce Admin Headaches

Our in-house shipping services reduce complexity across procurement and operations teams. Our program includes:
  • Managed carrier coordination
  • Secure packaging standards
  • Unified payment structure
  • Rapid response in the event of loss or damage
The result is fewer variables between production and installation.
Zero part-to-part variations from proprietary heat treating

The Net Result: Lower Total Cost of Ownership Across the Full Lifecycle

When centrifugal casting is properly integrated, lifecycle cost improves through measurable performance:
  • <3.5% scrap rate, minimizing waste and rework compared to typical foundry variability
  • 1,000+ reusable permanent molds, eliminating repeat tooling charges and accelerating repeat orders
  • Integrated casting, heat treating, machining, and shipping, reducing vendor markups and management overhead
We reinforce this structure with a lifetime warranty, aligning long-term accountability with long-term performance.

In-depth: Compare Spuncast to the other casting options.

Learn more about our pricing, including our free shipping for first-time customers!

Get Pricing

Industries and Products

Spuncast supports manufacturers and their products across performance-critical sectors.

Oil & Gas

Tubular components for pressure and corrosion-intensive environments.

We produce:

  • Pipeline and gathering system tubing
  • Downhole tool housings
  • Offshore and subsea tubular components
  • Pressure-containing tubes 

Energy & Power Generation

Components designed for high-temperature and combustion systems.

We produce:

  • Burner nozzles
  • Accumulators
  • Turbine shafts
  • Couplings

Defense & Government

Tubular components for structural and pressure-rated applications.
We produce:
  • Accumulators and pressure vessels
  • Propulsion system components
  • Structural tubular parts
  • Specialty containment systems

Water & Wastewater Processing

Corrosion-resistant tubing for demanding process environments.
We produce:
  • Process piping and pressure tubing
  • Pump housings and sleeves
  • Treatment system components
  • Corrosion-resistant tubular parts

Food Processing

Sanitary, corrosion-resistant tubular components.
We produce:
  • Sanitary process tubing
  • Pressure-rated processing equipment
  • Hygienic piping and sleeves
  • Washdown-resistant system components

Metals Processing

Wear-resistant and high-heat tubular components.
We produce:
  • Mill rolls and sleeves
  • Furnace components
  • Wear-resistant tubes
  • Transfer and process equipment parts

Heavy Industrial Equipment

Load-bearing and hydraulic system components.
We produce:
  • Hydraulic cylinders and housings
  • Structural equipment tubing
  • Pump casings and valve components
  • Pressure system parts

People Who Benefit Most

Design & Mechanical Engineers

Specify non-standard sizes and custom alloys with uniform wall thickness and predictable machining performance.

Manufacturing Engineers

Reduce excess stock, machining variability, and scrap with near-net tubular shapes.

Maintenance & Reliability Leaders

Lower failure risk and extend service life through improved material integrity and seamless construction.

Procurement & Sourcing Professionals

Control lifecycle cost through reusable tooling, stable alloy sourcing, and reduced downstream rework.

Operations & Supply Chain Managers

Support recurring production with flexible capacity and integrated logistics.

Spuncast at a Glance

50+ Years of Foundry Operation

More than five decades focused on centrifugal casting gives us the process control, material expertise, and production discipline required for repeatable results.

As an ESOP company, we maintain long-term workforce continuity and accountability that supports stable operations and consistent execution.
ISO 9001:2015 certified and producing to applicable ASTM A series standards, with support for ASME requirements and full material traceability.
In-Depth: Learn more about our company and our people.

Case Studies

Learn more about our pricing, including our free shipping for first-time customers!

Get Pricing

Frequently Asked Questions

Choosing the Right Foundry

What is a centrifugal casting foundry?

A centrifugal casting foundry melts metal—in our case, steel and steel alloys—and forms it using centrifugal force rather than static molds. We pour molten metal into a spinning, tubular-shaped die. The rotation flings the metal outward to the die wall, forming a tube. The inside diameter then becomes the finished product.
Unlike traditional foundries that use disposable sand molds, centrifugal casting uses reusable steel molds that can last for thousands of pours. Traditional static casting happens inside a stationary box: You don’t see the drama.
Centrifugal casting is incredibly dynamic, with molds spinning at speeds up to 1,000 RPM while molten steel is poured, creating a unique visual process with sparks and flames. More importantly, this spinning action drives denser, purer metal to the outside while impurities move to the center where they’re easily machined away, producing exceptionally strong, clean-walled castings.

First, ensure they produce the alloys you need. Spuncast specializes in steel grades, from standard carbon steels to high-strength, low-alloy (HSLA) steels, stainless, duplex, and precipitation-hardening grades. We work with hundreds of steel alloys but don’t stray into bronze or aluminum.

Second, verify their size capabilities match your requirements. Foundries vary significantly; some handle castings under 1,000 pounds, while others go two or three times heavier than our 18,000-pound capacity. Spuncast produces castings from 200 to 18,000 pounds, covering a wide range of applications.

Finally, look for integrated capabilities. Many foundries just cast and ship. Look for value-adds like captive heat treating, onsite machining, and shipping coordination. These are services that reduce your vendor management burden and improve quality control.

Several key differentiators set us apart:

Specialization in HSLA steel: We’re one of the only centrifugal steel foundries specializing in high-strength, low-alloy steel. These grades represent 65% of our total production, which means we deliver lower prices, higher quality, and deeper expertise in these materials than competitors who occasionally produce them.

Streamlined for centrifugals only: We focus exclusively on centrifugal casting, so all our value streams—from heat treating through machining to sawing—are optimized for round tubes. This shared-resource approach reduces costs. You benefit from setups that work across multiple jobs, and our reusable molds eliminate tooling costs entirely.

Integrated services: We handle heat treating, machining, AND shipping in-house. While most foundries avoid freight management, we’ve found we can save customers headaches and money by consolidating shipments. We also insure shipments ourselves. If something goes wrong, we handle it and remake parts without burdening you with freight claims.

Experience & Specialization (Executives, Engineers, Procurement)

Specialization drives quality and cost efficiency. When a foundry focuses on centrifugal casting exclusively, every process—from mold design to heat treat cycles to machining setups—is optimized for tubular parts. This creates significant advantages:
Shared resources lower costs: Since we only make round tubes with holes, our heat treat furnaces, CNC machines, and saws serve multiple customer orders simultaneously without custom setups. This efficiency translates to better pricing.
Deeper expertise: Our team doesn’t split attention between different casting methods. They’ve mastered the nuances of centrifugal casting, including how different alloys behave under rotation, optimal pour temperatures, and how to achieve consistent wall thickness.
There are very few foundries that do both centrifugal and static casting well. Trying to master both dilutes expertise and raises questions about quality. We’ve chosen to do centrifugal casting exceptionally well rather than be mediocre at multiple methods.
Significant experience matters, especially with specialized steels. If a foundry is going to make steel tubes for you, look for deep experience. Spuncast is one of the only centrifugal steel foundries specializing in high-strength, low-alloy steel. These grades represent 65% of our output.
That concentration means:
  • Lower pricing (we buy these materials in volume and know the supply chain)
  • Higher quality (we understand the metallurgy and processing requirements intimately)
  • Faster production (our processes are fine-tuned for these specific alloys)
Other foundries may try producing HSLA steels for you, but they won’t have the same depth of knowledge or cost efficiency. With 50+ years focused on centrifugal steel casting, we’ve seen and solved problems that occasional producers haven’t encountered yet.

Engineering & Technical Partnership (Design & Manufacturing Engineers)

The foundry should be as involved as you need them to be. At Spuncast, we have our own engineering staff who custom engineer every single job. Even simple ones.
Even if you have your own engineering team, it’s valuable to get our perspective. While tubes are generic in shape, the combinations of sizes, alloys, wall thicknesses, and finished products are nearly infinite. We may have already produced something similar and can save you from reinventing solutions.
Our engineers understand:
  • Stock allowances: How much material to add to OD and ID for machining to final dimensions
  • Alloy behavior: How different steels perform in centrifugal casting and which grades offer the best properties for your application
  • Design optimization: How to minimize machining while maintaining tight tolerances
We work collaboratively, providing as much or as little engineering support as your project requires.

Sizing is straightforward: We maintain a library of 500-1,000 molds in various sizes. We’ll select the mold that gets closest to your finished product dimensions, then add appropriate stock allowances for machining. This expertise ensures you’re not over-buying material while maintaining enough stock for proper finishing.

Alloy selection requires deeper knowledge: With hundreds of alloys produced over the years, we’ve learned which grades deliver specific properties:

  • Corrosion resistance vs. strength in stainless grades
  • Tensile strength vs. elongation trade-offs in low-alloy steels
  • Performance in specific environments (high temperature, high pressure, corrosive)
We’ll steer you toward alloys that match your requirements while showing alternatives you may not have considered. You make the final choice, but our input helps you make informed decisions.

Understanding centrifugal casting nuances: Stock allowance for centrifugal castings differs from sand or investment castings. We typically add more stock to both OD and ID. This is part of our process design. If you haven’t ordered centrifugal castings before, we’ll explain these requirements so you know what to expect during machining.

Quality, Testing & Traceability (Quality, Reliability, Compliance)

At minimum, look for documented quality systems that can be audited. Spuncast maintains ISO 9001:2015 certification, which provides:

Work instructions at every production step
Quality manual defining company standards and role responsibilities
Audit trail showing we actually follow documented procedures

Some foundries operate without ISO certification or use other quality frameworks. The key is having a verifiable process in place. You should be able to see evidence that their stated procedures match their actual practices.

Every Spuncast casting receives a unique heat number physically stamped onto the part immediately after casting, while still warm enough to handle. This number stays with the part throughout its entire life and ships with it to customers.

Complete traceability: That heat number traces back to the exact scrap materials used in the melt. We retain these records indefinitely—customers have traced 20-year-old parts back to original production data.

Documentation includes:

  • Raw material certifications
  • Melt chemistry analysis
  • Mechanical test results
  • Heat treat records
  • Inspection reports
  • Mold identification
This level of traceability supports quality investigations, warranty claims, regulatory compliance, and long-term maintenance planning.
It should be as simple as asking. At Spuncast, customers can request audits at any time. We welcome both formal and informal reviews.
Typical audit approach:
  • Select specific orders to track
  • Follow them from order entry through production to shipping and certification
  • Use checklists to verify documented procedures match actual practices
  • Review quality records and test data
  • Inspect facilities and equipment
We accommodate several audit types:
  • ISO audits (formal third-party reviews)
  • PED audits (for European pressure equipment directive compliance)
  • Customer internal audits (based on your procurement requirements)
  • Industry-specific audits (ABS, ASME, etc.)

This transparency demonstrates our confidence in our processes and our commitment to meeting your standards. PED certification, for example, is specific to pressure vessels. We obtained it to simplify the approval process for customers making pressure-holding equipment.

Production, Cost & Long-Term Value (Ops, Supply Chain, Procurement)

We’re designed for flexibility. Spuncast handles orders ranging from single pieces to hundreds per month or thousands per year.
For high-volume repeat orders, we can optimize:
  • Dedicated molds specific to your parts (when volumes justify it)
  • Custom heat treat cycles tailored to your specifications
  • Reserved machine time on CNC equipment configured for your components

Our job-shop model with production capacity means we:

  • Maintain planned capacity headroom (typically run at ~60%)
  • Can scale production up or down based on your demand changes
  • Won’t sacrifice quality or delivery when volumes increase
Whether you need one prototype or ongoing production of hundreds, our shared-resource approach adapts to your requirements without forcing you into minimum order quantities.

Total cost of ownership goes far beyond piece price. Spuncast reduces costs throughout the component lifecycle:

No tooling charges: Permanent reusable molds owned by Spuncast, which means no pattern costs, no repeat tooling fees.

Shared value streams: Your parts share heat treat furnaces, machine setups, and saw operations with other jobs. This reduces per-unit costs without sacrificing quality.

Integrated shipping: We consolidate orders shipping on the same day/week to minimize truck usage and freight costs for everyone.

Material efficiency: Domestic sourcing from 30+ suppliers smooths out price volatility. Using 95%+ certified scrap controls costs while ensuring quality.

Longer service life: Centrifugal casting’s inherent strength and purity mean fewer failures and less downtime, reducing maintenance and replacement costs over years of operation.

Fewer vendor handoffs: When one foundry handles casting, heat treating, machining, testing, and shipping, you eliminate markup at each step and reduce project management overhead.

Additional Value-Add Services

Most don’t, but we’ve found it adds significant customer value. Shipping management is atypical in the foundry industry. Many foundries take the attitude: “I made it, I got it to my dock, now it’s your problem.”

Spuncast takes a different approach:

We manage the entire shipping process because it’s part of complete customer service. Over the years, we’ve identified reputable freight companies and know which ones handle heavy castings carefully versus those that risk damage.

We insure shipments: If something doesn’t arrive safely, we handle the freight claim process behind the scenes. Even if we can’t reach resolution with the carrier, we’ll remake and reship the parts. Customers shouldn’t be burdened with freight disputes.

Cost benefits: By consolidating all orders shipping on particular days, we negotiate better truck rates. Fewer trucks mean lower per-shipment costs for everyone.

This approach is underutilized in the foundry business, but it serves our customers exceptionally well and eliminates a major pain point.

Look for these indicators of partnership quality:

Consistent performance metrics:

  • <3.5% scrap rate (unusually low for foundry work, a benefit of centrifugal casting’s process consistency)
  • Long-term customer relationships (many of our 260+ customers have worked with us for years)


Employee stability:
Our team members are also owners, thanks to our Employee Stock Ownership Program (ESOP). That shared investment means deeper commitment from them and better outcomes for you. This drives:

  • Lower turnover (experienced people who know your parts)
  • Quality focus (pride of ownership)
  • Long-term thinking (reinvestment in equipment and capabilities)


Responsiveness:
Quick communication, clear project updates, and proactive problem-solving matter more than perfect quotes. You want a partner who keeps you informed and adapts when situations change.

Permanent molds eliminate tooling risk: You’re not dependent on pattern availability or paying again if a mold breaks. We maintain the molds, and if replacement is needed, it happens behind the scenes without charging you.
Domestic material sourcing: We source 95%+ of materials from domestic certified scrap suppliers. This approach:
  • Avoids tariffs and import delays
  • Reduces exposure to global disruptions (like COVID-era shipping constraints)
  • Provides supply flexibility (30+ suppliers mean we’re not dependent on single sources)
  • Controls costs (scrap pricing is more stable than virgin material)
Material flexibility: Using scrap allows us to produce 10-20 different alloys in a given day from the same raw melt stock. This nimbleness means we can respond to your material needs quickly without excessive inventory or lead time penalties.
Integrated capabilities: When casting, heat treating, and machining happen in one facility, there’s no risk of third-party capacity constraints or quality failures disrupting your supply.