Your Bay Area Source for Aluminum, Stainless Steel, and Carbon Steel Sheet, Coil, and Plate

Reliance Metalcenter is a full-service Bay Area metal supply company offering a complete range of flat-rolled metal stock to customers across northern California, northern Nevada, and beyond. As a trusted Bay Area metal supply company and established metals distributor, we provide aluminum, stainless steel, and carbon steel in coil, sheet, and plate formats, all processed and stocked at our Union City-based metal service center.

Serving as both a regional and international metal supply partner, Reliance Metalcenter supports a wide array of industries and project types. Whether you’re sourcing 304 stainless steel, 5052 aluminum, or galvanized steel coil and sheet, we deliver fast turnaround, advanced metal processing services, and mill-direct quality you can trust.

A Complete Range of Flat-Rolled Metal Products

As one of the leading Bay Area raw materials suppliers, Reliance Metalcenter offers deep inventory and technical support across multiple metal types. Our stock includes standard and specialty alloys in multiple thicknesses and widths, ensuring flexibility for small-batch jobs and high-volume production alike.

Our product offering includes all the following.

Aluminum Sheet, Coil, and Plate

As top wholesale aluminum product suppliers, we deliver reliable aluminum stock to fabricators, OEMs, and manufacturers throughout the region. We are well-positioned as one of the most accessible aluminum product suppliers in California, with fast fulfillment and a broad selection of flat-rolled aluminum materials, including:

• 6061 T6 and T651 aluminum coil, sheet, and plate
• 3003 and 5052 aluminum sheet, coil and plate
• Painted and anodized aluminum coil and sheet

Whether you’re sourcing mill-finish aluminum or protective PVC-coated material, Reliance Metalcenter’s Union City team provides full documentation and in-house cutting options. Our position as experienced aluminum sheet, coil, and plate distributors means we understand your material performance requirements, and deliver accordingly.

Stainless Steel Sheet, Coil, and Plate

Our stainless steel inventory supports the medical device, food, agriculture and tanker trailer industries that require strength, corrosion resistance, and process consistency. Reliance is a leading stainless steel supplier and maintains a comprehensive inventory across our primary core stainless grades:

• 304 stainless steel coil, sheet, and plate
• 316 stainless steel coil, sheet, and plate

From structural stainless for construction to cleanroom-grade stock for electronics and medical device manufacturing, we support both aesthetic and functional applications across sectors.

Steel Sheet and Coil

As a go-to steel coil and sheet supplier, Reliance Metalcenter provides coated, galvanized, and cold-rolled options to meet fabrication, structural, and enclosure needs. Our carbon steel offerings include:

• Coated steel coil and sheet
• Hot rolled pickled and oiled (HRPO) steel coil and sheet
• Hot dipped galvanized steel coil and sheet
• Cold-rolled steel coil and sheet

One Metal Service Center, Global Reach

Reliance Metalcenter’s Union City facility spans 165,000 square feet and serves as the hub of our West Coast operations. As a trusted steel service center, we support customers across all industries with responsive metal processing services, flexible delivery programs, and certified quality control.

Capabilities include:

• Precision shearing, blanking, and leveling
• Coil slitting and cut-to-length programs
• Circle cutting and part optimization
• PVC coating and paper interleaving
• Packaging and labeling for downstream operations

We are proud to operate as a steel and aluminum metal supply company for the Bay Area, northern California, and northern Nevada, also delivering to Mexico. Reliance Metalcenter in Union City also ships to East Asia, including Korea, Japan, China, and Taiwan. This global reach allows us to coordinate shipments, manage blanket orders, and provide real-time material planning for local fabricators and global manufacturers alike.

Southeast Asia Support through Singapore

Our operations in West Singapore provide extended processing and distribution support for customers in Southeast Asia, helping global manufacturers access U.S., European, and Asian mill products with local service and rapid fulfillment. This 40,000-square-foot facility, established in 2008, is designed for high-volume saw cutting and material staging.

Key capabilities include:

• Saw cutting aluminum plate up to 24″ (vertical band saw)
• Circular saw cutting up to 12″ thick
• Custom part cutting to minimize scrap and improve yield
• Local staging and just-in-time support for production schedules

This site is AS 9100:2016 certified (based on ISO 9001:2015) and serves OEMs, Tier 1 suppliers, and precision manufacturers throughout Vietnam, Thailand, Indonesia, Singapore, India, and Malaysia.

A Reliable Raw Material Distributor Across Industries

Reliance Metalcenter has supported more than 3,000 customers, including manufacturers in:

• Aerospace and defense
• Food processing
• Semiconductor and electronics
• Medical device manufacturing
• General industrial and automation
• Construction and infrastructure

As a responsive metal services company, we partner closely with our clients to ensure the material type, cut, and delivery method align with their exact application and performance standards. Our team works collaboratively to ensure accuracy, certification compliance, and scheduling alignment from start to finish.

Why Choose Reliance Metalcenter?

As a premier metals distributor with decades of experience, Reliance Metalcenter is known for consistency, precision, and personalized service. Whether you need Semiconductor Quality 6061 T651 aluminum plate, 304 stainless steel coil, or hot dipped galvanized carbon steel sheet, we provide:

• Full inventory of aluminum, stainless, and carbon steel flat-rolled stock
• In-house processing with ISO 9001:2015 certification
• Next-day delivery across northern California
• Global support through our Asia-Pacific operations
• DFAR-compliant, conflict-free sourcing options
• Repeat customer rate exceeding 85%

We are not just a steel and aluminum supply company for northern California. At Reliance Metalcenter, we are a strategic partner committed to supporting your production flow, quality control, and on-time delivery needs.

Let’s Talk About Your Flat-Rolled Metal Needs

From coil and sheet to plate and specialty cuts, Reliance Metalcenter offers the variety and service you need to move forward with confidence. Contact our team today to:

• Check current inventory for aluminum, stainless, or carbon steel
• Request a quote or place an order
• Set up a blanket program or contract supply agreement
• Coordinate logistics or material planning across North America or Southeast Asia

As your most reliable Bay Area steel supply company, Reliance Metalcenter is ready to help you source, process, and deliver with precision, locally and globally.