What is The Knowledge Hub?
While Online Metals prides itself in its large portfolio, professional customer service, and impressive 2-day shipping, we also understand that not everyone knows exactly what they need when they arrive at our website. We’ve collected and answered some of the most polarizing material questions, connected with niche experts, and crafted a catalog of essential resources and tools to help you make the best decision. Welcome to The Knowledge Hub by Online Metals!
TOP ARTICLES
TOP GUIDES 
ADDITIONAL GUIDESTop Articles
Aluminum 6061 vs 7075
Explore the differences in properties of 6061 vs 7075 aluminum and their various applications. Read More
7075 T6 vs T73
Different tempers provide different properties and benefits for a variety of applications. Learn more about T6 and T73 temper applications. Read More
Hot Roll vs Cold Roll
What is the difference between Hot Rolled and Cold Rolled material? Read more to learn which is right for your project. Read More
Top Guides
Weight Calculator
Whether you need to understand a material's weight to meet your project’s needs, understand shipping constraints, or if pickup is feasible, our weight calculator has you covered.
Use Our Calculator
Melting Points
Working with different metals and curious about their melting points? We have a complete table of both °F and °C to ensure you understand how to reach your desired result.
View Melting Points
Tempers Guide
Metal tempering is a heat treatment process to gain additional properties within the material.
Use Our Guide