PRECISION IN EVERY SHAPE & SIZE - YOUR ROUND BAR EXPERTS!"

[Welcome]
Steel Bar Grinding Services in Illinois for Ferrous and Non-Ferrous Materials
Precision Ground Metals, Inc. is a trusted precision ground bar supplier and centerless grinding Chicago operation serving aerospace, automotive, medical, and industrial manufacturers with high-quality round bar stock for over 30 years.
We offer steel bar grinding services Illinois manufacturers depend on for both ferrous and non-ferrous materials, from common carbon and stainless grades to speciality titanium, copper, and tool steel. Our facility in Palos Hills, IL, stocks a wide range of grades, shapes, and sizes with tight tolerances and superior surface finishes tailored to the exact needs of your production.
We work with both ferries and non-ferries materials

[Compliance]
Company Material and Compliance
Precision Ground Metals, Inc. supplies most materials domestically and maintains full compliance with DFARS, REACH, and RoHS on every order, so your procurement team has the documentation it needs without chasing it separately.
- DFARS (Defense Federal Acquisition Regulation Supplement)
- REACH (Registration, Evaluation, Authorization, and Restriction of Chemicals)
- RoHS (Restriction of Hazardous Substances)
[Materials]
Industrial Metal Bar Supplier, IL for All Major Grades and Materials
We stock and supply a wide range of ferrous and non-ferrous materials, so you can source everything your application requires from one reliable industrial metal bar supplier Illinois manufacturers trust.

Stainless Steel
Our stainless steel precision-ground bars cover austenitic grades 303, 304/304L, 316/316L, 321, and 310/310S, ferritic grades 430 and 409, martensitic grades 410, 420, and 440C, duplex grades 2205 and 2507 Super Duplex, and precipitation hardening grade 17-4 PH. These grades serve shafts, bearings, medical instruments, aerospace components, and CNC precision machining applications.

Alloy Steel
Our alloy steel precision-ground bars are ground to plus or minus .0005 inch or better and cover low alloy grades 4140, 4340, 8620, and 4130, medium and high alloy grades 6150 and 52100, and tool and die grades H13 and D2. These grades serve aerospace and automotive shafts, hydraulic and pneumatic systems, bearings, spindles, and bushings.

Carbon Steel Bar Stock
Carbon steel bar stock grades we supply include cold finish grades 1018, 1045, 1144 Stressproof, and 12L14, and precision ground grades 1018, 1045, O1 tool steel, A2 tool steel, and 4140 alloy at tolerances of plus or minus .0005 inch or better. These grades serve precision shafts, linear motion components, guide rails, and die and mould applications.

Aluminium Round Bar Chicago
Aluminium round bar Chicago grades we stock include 1100, 2024, 5052, 5086, 6061, 6063, and 7075, precision ground within plus or minus .001 inch. These grades deliver lightweight, corrosion-resistant performance for aerospace, automotive, marine, medical equipment, robotics, and hydraulic and pneumatic cylinder applications.

Brass Rounds
Our brass rounds inventory covers grades C260, C360, C464, C220, C230, C280, and C385 for precision machining, plumbing and fittings, automotive and aerospace, electrical connectors, and decorative and architectural applications. Brass delivers good machinability, corrosion resistance, and electrical conductivity across every grade we carry.

Bronze Rounds
We carry phosphor bronze grades C51000, C52100, and C54400, aluminium bronze grades C95400, C95500, and C95900, silicon bronze C65500, manganese bronze grades C86300, C86400, and C86500, and bearing bronze grades C93200, C93600, and C93700 for bushings, bearings, marine components, gears, shafts, and aerospace and automotive applications.
[Services]
Custom Metal Grinding Services Chicago and Complete Bar Processing
We offer custom metal grinding services Chicago manufacturers need to keep production running accurately and on schedule. Every service runs in-house, so your order moves through grinding, straightening, cutting, and finishing under one quality system.

Straightening Services
Straightening ensures every bar meets strict straightness tolerances before it ships. Bars that run true through your equipment reduce setup time and produce consistent parts from the first piece through the last in your production run.

Tool Steel Grinding
Tool steel grinding covers grades O1, A2, D2, M2, H13, and more to tolerances of plus or minus .001 inch or better. Each bar is ground with the care these grades require to preserve their dimensional stability and hardness under production conditions.

Cutting Services
We cut bars to custom lengths to suit your exact specifications. Getting material cut to length before it arrives means less handling, less scrap, and a cleaner workflow from receiving to your machine.

Shipping Services
We provide reliable and efficient delivery to your location so your order arrives on schedule. On-time delivery is essential to how we operate, and we build it into every order we process and ship.

Packaging Services
Protective packaging maintains bar quality during transit so your material arrives in the condition your production floor requires. We package every order to suit the size, grade, and delivery requirements of your specific application.
We are committed to delivering high-quality round bars that meet the demands of precision machining and industrial applications. Contact us today to discuss your needs!