Supplying 5052 and 3003 Common Alloy Aluminum Sheet, Coil, and Plate from Union City, California

Reliance Metalcenter is a leading Bay Area metals distributor, offering a comprehensive range of common alloy aluminum coil, sheet, and plate to customers throughout northern California, northern Nevada, and beyond. As a trusted Bay Area metal supply company, we provide high-performance aluminum materials that meet the needs of manufacturers, fabricators, and Tier 1 suppliers across multiple industries.

At our 165,000 square foot metal service center in Union City, CA, we stock and process industry-standard grades including 5052 aluminum sheet, 5052 aluminum coil, 5052 aluminum plate, 3003 aluminum sheet, and 3003 aluminum coil. These alloys are known for their strength-to-weight ratio, corrosion resistance, and workability, making them ideal for a wide range of applications, from aerospace and transportation to architecture and electronics.

Whether you are seeking mill-direct materials or precision-cut aluminum components, Reliance Metalcenter is the metal services company you can count on for consistent quality, technical support, and fast lead times.

What Are Common Aluminum Alloys?

Common aluminum alloys refer to non-heat-treatable grades that offer an excellent combination of formability, corrosion resistance, and cost-effectiveness. These materials are typically alloyed with manganese or magnesium to enhance their performance while remaining highly workable and weldable. The most widely used common alloys are from the 3xxx and 5xxx series.

At Reliance Metalcenter, we focus on two of the most in-demand grades:

5052 Aluminum Alloy

This common alloy aluminum sheet, coil, and plate is magnesium-based and offers:

• Excellent corrosion resistance, especially in marine and saltwater environments
• High fatigue strength
• Good weldability
• Strong workability and moderate-to-high strength

3003 Aluminum Alloy

This common alloy aluminum sheet and coil is manganese-based and is known for:

• Excellent formability
• Good corrosion resistance
• High thermal and electrical conductivity
• Compatibility with many finishing and coating methods

Both grades are suitable for a wide variety of applications and are widely used in structural components, appliance panels, fuel tanks, signage, transportation infrastructure, and more.

Aluminum Coil, Sheet, and Plate Inventory

As one of the region’s most reliable aluminum suppliers, Reliance Metalcenter maintains inventory in a variety of thicknesses, widths, and formats to meet your project requirements. We offer:

• Common alloy aluminum coil for stamping, forming, and fabricating
• Common alloy aluminum sheet for enclosures, architectural panels, and transportation skins
• Common alloy aluminum plate for structural components and load-bearing applications

We also provide in-house metal processing services, including shearing, leveling, and PVC coating. This allows us to deliver finished, ready-to-use materials with protective films, exact dimensions, and minimal lead times.

Processing and Distribution from Our Union City Facility

Our Union City location is a fully equipped metal service center and aluminum distribution hub with advanced material handling, processing, and inventory control systems. Our facility enables us to fulfill large and small orders with speed and consistency, serving as a reliable steel, stainless steel and aluminum metal supply company for the Bay Area and the greater West Coast.

Union City facility features include:

• 165K square feet of inventory and processing space
• ISO 9001:2015 certified quality management system
• Just-in-Time inventory and blanket order programs
• Next-day delivery throughout northern California
• DRC conflict-free and DFAR-compliant aluminum sourcing
• Over 85 percent repeat customer rate

As a vertically integrated metals processor and distributor, we support industries such as aerospace, medical, semiconductor, telecommunications, transportation, and manufacturing.

Global Supply Reach and Local Responsiveness

Reliance Metalcenter supports customers locally and internationally as a steel and aluminum metal supply company for the Bay Area, northern California, northern Nevada, and Mexico. Reliance Metalcenter also ships to East Asia, including Taiwan, Japan, Korea, and China.

As a Bay Area metal service center with a specialty with aluminum, we coordinate closely with global procurement teams to ensure steady supply and reliable transit. With a network of over 300 facilities across 10 countries, Reliance Metalcenter is strategically positioned to deliver anywhere your project requires.

Southeast Asia Support from Our Singapore Facility

To support manufacturers and OEMs across Southeast Asia, Reliance Metalcenter operates a dedicated aluminum processing and distribution facility in West Singapore. Established in 2008, this 40,000 square foot site delivers high-volume material support to Tier 1 suppliers, particularly in semiconductor, aerospace, electronics, and life science sectors.

Our Singapore facility includes:

• Vertical band saws capable of cutting aluminum plate up to 24 inches thick
• Precision saws for cutting aluminum plate up to 12 inches thick
• Custom sawing programs to reduce material waste and optimize yield
• Part cutting capabilities including straight, angle, OD, and ID configurations

As part of our Southeast Asia network, this site is:

• AS 9100:2016 certified based on ISO 9001:2015
• Aligned with U.S., European, and Asian aluminum mill sources
• Focused on rapid response for regional production needs

Customers in Vietnam, Thailand, Indonesia, Singapore, China, India, and Malaysia rely on our Singapore team for material availability, cut-to-size services, and technical expertise. These capabilities allow us to function as a premier steel and aluminum metal supply company for southeast Asia.

Why Choose Reliance Metalcenter?

Reliance Metalcenter is more than a metals distributor. We are a full-line metal services company that brings precision, scale, and integrity to every order. Customers continue to trust us as their preferred source for common alloy aluminum coil, sheet, and plate because we offer:

• Local inventory in Union City in northern California
• Wide format availability and custom processing
• Rapid quote turnaround and responsive customer service
• Strong quality control from procurement through fulfillment
• A global distribution network paired with local flexibility

As leading U.S. metal supply company with over 125,000 customers and 300+ locations from coast to coast, we are uniquely equipped to support both day-to-day production and complex supply chain programs.

Request a Quote for Common Alloy Aluminum Today

If you need 5052 or 3003 aluminum coil, sheet, or plate, Reliance Metalcenter is ready to support your business. Whether you are based in the Bay Area, operate in northern Nevada, or manage a plant in Singapore, we are here to serve you.

Contact our Union City team to:

• Request pricing and availability
• Set up a custom stocking program
• Discuss technical specs and application support
• Arrange for Southeast Asia delivery through our Singapore operation

Reliance Metalcenter is the Bay Area service center that delivers precision, performance, and partnership with every order.