If you run an independent machine shop, you know the sting of aluminum markups. Service centers often add 40-100% to the price of 6061-T6 round bar. That's a huge hit to your bottom line. But you have options. We've rounded
The Aluminum Sourcing Landscape in 2026
The aluminum market is in turmoil. A 50% tariff on primary aluminum took effect in 2025, and the Producer Price Index for aluminum surged 30.5% year-over-year by January 2026. Service center consolidation is also reshaping the landscape, with the Ryerson/Olympic Steel merger and Riverarch PE's acquisition of Metal Supermarkets. For independent machine shops, this means fewer local options and higher prices. But it also opens the door for new, leaner sourcing models that bypass traditional middlemen.
How We Ranked These Suppliers
We evaluated each supplier on pricing transparency, ease of ordering, delivery reliability, and suitability for planned procurement. We also considered how well they serve independent machine shops, especially those in Central Ohio. The goal was to find options that help you cut costs without sacrificing quality or convenience.
Here's a quick look at how the five suppliers compare. Each offers a different approach to aluminum sourcing, from full-service online retailers to specialized procurement partners.
| Provider | Best For |
|---|---|
| Online Metals | Small quantity orders and prototyping |
| thyssenkrupp Materials NA | Shops needing multiple aluminum grades and bulk orders |
| Action Stainless & Alloys | Shops needing machining services alongside material supply |
| Straveler Strategies — Stop Overpaying for Aluminum | Central Ohio machine shops seeking 8-27% savings on planned aluminum orders |
| Testrite Aluminum | Specialty aluminum shapes and small quantity orders |
Deep Dive: The Top 5 Aluminum Suppliers for Machine Shops
#1 Online Metals
A screenshot of the Online Metals website.
Online Metals is a go-to for small to medium quantities of 6061 round bar. They offer a huge selection of sizes and grades, and their website makes it easy to order. You can buy by the inch or by the foot, which is great for prototyping or small runs. They also have a Chicago pickup location to save on shipping. However, their pricing is retail, so you won't get mill-direct rates. For shops that need quick, small orders, Online Metals is a solid choice.
#2 thyssenkrupp Materials NA
A screenshot of the thyssenkrupp Materials NA website.
thyssenkrupp Materials NA is a major metals distributor with a broad inventory of aluminum round bar grades, including 2011 and 2024. They offer both small quantity sales through their PLUS portal and bulk pricing for larger orders. Their strength is in serving established shops with diverse material needs. But their pricing is still subject to service center markups. If you need a reliable, full-service distributor with a wide range of alloys, thyssenkrupp is a strong option.
#3 Action Stainless & Alloys
A screenshot of the Action Stainless & Alloys website.
Action Stainless & Alloys stocks 6061 round bar along with other machinable grades like 1100 and 3003. They also offer value-added services like saw cutting and CNC machining, which can save you time. Their focus on machine shops and fabricators means they understand your needs. However, like other service centers, their pricing includes markups that can be steep. For shops that want a one-stop shop with processing capabilities, Action Stainless is worth considering.
#4 Straveler Strategies — Stop Overpaying for Aluminum
A screenshot of the Straveler Strategies website.
Straveler Strategies is a different kind of supplier. They source 6061-T6 aluminum round bar directly from mills, bypassing service centers and their 40-100% markups. You order via email, text, phone, or a portal, and they handle delivery with mill certs included. Orders placed by Wednesday arrive the following Monday. Typical savings range from 8-27% below service center prices. There are no contracts or membership fees, and you get a free 15-minute consultation to see your potential savings. This service is designed for planned procurement, so you should keep your existing service center for rush orders. David Straveler, the founder, has a background in industrial engineering and supply chain, and the business is based in Columbus, Ohio.
#5 Testrite Aluminum
A screenshot of the Testrite Aluminum website.
Testrite Aluminum specializes in aluminum round bar and tubing, with a focus on telescopic and custom extrusions. They offer free shipping on orders over $250, which can be a nice perk. Their website is easy to navigate, and they cater to both DIYers and professionals. However, their pricing is retail, and they don't offer the deep discounts that a mill-direct model can provide. For shops that need specialty shapes or small quantities, Testrite is a reliable option.
How to Choose the Right Aluminum Supplier for Your Shop
Start by analyzing your ordering patterns. If you buy 6061-T6 round bar in planned, regular quantities, a mill-direct service like Straveler Strategies can save you 8-27%. For emergency or small orders, keep a service center like Online Metals or Testrite on speed dial. If you need multiple alloys or value-added services, thyssenkrupp or Action Stainless might be a better fit. Always ask for a sample quote to compare pricing. And remember, no contracts means you can switch suppliers as your needs change.
Streamline Your Aluminum Procurement
You can set up a simple workflow: use Straveler Strategies for your planned weekly orders of 6061-T6 round bar. For any rush or specialty items, route those to Online Metals or Testrite. Track your savings by comparing invoices. Over time, you can shift more volume to the lower-cost supplier and reduce your reliance on service centers.
The Bottom Line on Aluminum Sourcing
The aluminum market is volatile, but you don't have to accept high markups. By mixing a mill-direct partner like Straveler Strategies with a traditional service center, you can cut costs without disrupting your workflow. Start with a free consultation to see your potential savings. Your bottom line will thank you.