A Leading Bay Area Metal Supply Company for Aluminum Plate, Sheet, Coil, Rod, and Extrusions
Reliance Metalcenter is a Bay Area aluminum supply company offering a full range of plate processing services for industries requiring consistency, accuracy, and surface protection. As a Bay Area metal supply company with deep capabilities in metals distribution and processing, we support customers throughout northern California, northern Nevada, Mexico, and global markets including Korea, Japan, Taiwan, China, and Southeast Asia.
Reliance Metalcenter is a trusted Bay Area distributor specializing in high-quality aluminum products for manufacturers, fabricators, and OEMs across northern California and beyond. As a full-service Bay Area metal service center, we offer a comprehensive inventory of aluminum sheet, plate, coil, rod, extrusions, and specialty products to support a wide range of industry applications.
Our service center in Union City, California, is one of the region’s most advanced facilities for aluminum material distribution and metal processing services. We serve as one of the top aluminum product suppliers in the region and deliver both raw materials and precision-processed parts to customers in aerospace, semiconductor, transportation, food processing, and medical device manufacturing.
From 5052 aluminum sheet to 6061 T651 plate, anodized and painted aluminum sheet, and aluminum tread plate, Reliance Metalcenter is the aluminum product supplier in California that leading companies count on for reliable supply, material expertise, and fast turnaround.
Your Source for Industrial Aluminum Supply
As a top aluminum processor and value- add distributor, Reliance Metalcenter has supported more than 3,000 customers globally. Our aluminum inventory includes:
Aluminum Common Alloy and Heat Treatable Plate, Coil and Sheet
We carry and process a full range of common alloy aluminum coil and sheet products in addition to our extensive aluminum heat treatable plate and sheet products. Our facility stocks:
- 6061 T6 aluminum sheet
- 6061 T6 aluminum coil
- 6061 aluminum plate up to 14″
- 5052 aluminum sheet
- 5052 aluminum coil
- 5052 aluminum plate
- 3003 aluminum sheet
- 3003 aluminum coil
These alloys are widely used in aerospace, construction, electronics, industrial uses requiring excellent formability and other applications requiring a combination of strength, corrosion resistance, and weldability. All materials can be cut to length and prepared with protective coatings or PVC as needed.
Specialty Aluminum Products
In addition to standard flat-rolled products, Reliance Metalcenter offers:
- Aluminum extrusions for structural, framing, and architectural applications
- Aluminum tread plate and aluminum tread bright for flooring, truck bodies, and anti-slip applications
- Aluminum lighting sheet for fixture fabrication, display panels, and interior uses
- Painted aluminum sheet and anodized aluminum sheet for aesthetic and corrosion-resistant surfaces
We are proud to be one of the most complete aluminum plate distributors in the western United States and a strategic partner for companies seeking aluminum at scale.

Serving Local and Global Markets
As a Northern California metals distributor with regional and global reach, Reliance Metalcenter supports projects throughout the western United States and the Asia-Pacific region. We are a raw materials supply company for the Bay Area, northern California, northern Nevada, and Mexico, and even ship to customers as far as Japan, Korea, Taiwan, and China. Our dedicated logistics teams and material planners work closely with international supply chain managers to ensure consistent material availability, on-time delivery, and quality compliance.
Union City: A High-Capacity Aluminum Hub
Reliance Metalcenter operates from a 165,000 square foot metal service center in Union City, California. This facility plays a key role in supporting both national and global aluminum distribution programs. Our Bay Area operation delivers:
- Just-in-Time aluminum supply for California and Nevada customers
- ISO 9001:2015 certified quality processes
- Next-day delivery in northern California
- Aluminum inventory management with contract and blanket order options
- DFAR-compliant and DRC conflict-free materials
As a metal services company and metals processor trusted by OEMs and Tier 1 suppliers, our team supports custom cut-to-size programs, packaging specifications, and quality documentation.
We serve as the aluminum supplier of choice for critical applications in:
- Aerospace components
- Semiconductor tooling
- Food-grade enclosures and process equipment
- Telecom cabinets and frames
- Automotive components and brackets
- Medical carts and imaging equipment
Our aluminum capabilities enable manufacturers to optimize cost, weight, performance, and availability for essential products across industries.
Southeast Asia Operations: Expanded Capabilities
Reliance Metalcenter also operates a dedicated aluminum processing and distribution facility in West Singapore to serve the Asia-Pacific region. Our Southeast Asia operations were established in 2008 and provide regional access to high-quality aluminum sourced from leading U.S., European, and Asian mills.
The Singapore site includes a 40,000 square foot facility with:
- Plate processing for up to 24″ thick aluminum plate using vertical band saws
- Precision saw cutting of aluminum plate up to 12″ thick using circular saws
- Custom part cutting to improve yield and reduce scrap
- Straight cuts, outside and inside diameter circles, and angle cuts
- Full material traceability and cutting documentation
The Singapore team works closely with Tier 1 aerospace, semiconductor and industrial suppliers throughout Southeast Asia, including:
- Vietnam
- Thailand
- Indonesia
- Singapore
- India
- Malaysia
As one of the most trusted aluminum product suppliers in the region, we help Southeast Asian manufacturers reduce cycle times, optimize part design, and simplify procurement.
Our Southeast Asia services align with the same quality standards as our U.S. operations, including AS 9100:2016 certification, based on ISO 9001:2015. This integrated approach allows us to offer global material sourcing with local service and support.
Why Choose Reliance Metalcenter?
As an industry-recognized aluminum processor, Reliance Metalcenter brings together material expertise, supply chain agility, and end-to-end processing support. Our customers continue to work with us because we offer:
- A broad inventory of flat-rolled and extruded aluminum products
- High-capacity processing for sheet, plate, and coil
- Local and global delivery programs with order delivery notifications
- Custom packaging, labeling, and staging for OEM and Tier 1 needs
- A 165K square foot Union City facility backed by a nationally leading network of metal suppliers
- Reliance, Inc. services over 125,000 customers across 300 locations in 10 countries
Whether you need 5052 aluminum sheet, 6061 aluminum plate, or anodized aluminum sheet in standard or custom formats, we have the aluminum inventory and cutting capability to support your production schedule and performance requirements.
Let’s Talk About Your Aluminum Needs
If you’re looking for aluminum product suppliers in California or a global partner for consistent, high-volume aluminum supply, Reliance Metalcenter is ready to support your goals.
Contact our Union City team today to:
- Request a quote on flat-rolled or extruded aluminum
- Discuss contract programs and managed inventory
- Schedule cut-to-size aluminum plate or coil processing
- Explore sourcing options across the U.S. and Southeast Asia
We are proud to be a top aluminum plate distributor and metals processor trusted by manufacturers in every major industry. With local service, global reach, and proven expertise, Reliance Metalcenter delivers the performance and partnership that your business depends on.
We’d Love to Hear From You
Contact us today to learn more about our products and processing services.
