Reading and Grasping Metal Mill Test Reports, Part 2

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Reading and Grasping Metal Mill Test Reports, Part 2

reading metal mill test reports

In part one of this two-part blog series, we went over metal and steel mill test reports (MTRs) and why they’re valuable. Important as a quality control method across the metal industry, MTRs serve as necessary checks and balances as a given metal moves through its manufacturing process and, eventually, to clients for various projects and uses.

At Wasatch Steel, we’ll be happy to provide a mill test report for any of our applicable steel products, ranging from steel bar and tube to sheet, bar and several specific categories. What are some of the other elements you can expect to find on a mill test report, and how do these factor into your decision about a given metal or application? Today’s part two of our series will dig into this to ensure you know what to look for when receiving such a report from any manufacturer.

Physical and Mechanical Properties

In part one, we noted that this report will contain specific chemical properties, especially for any alloys used on the metal. It will also note all relevant physical and mechanical properties – these are present for every metal piece, unlike alloys, which may not be used for some metals.

Such properties will include common basic metal areas like strength, hardness, ductility and elasticity of the metal or steel. These will be marked with basic numbers our pros will be happy to explain to you if needed. In addition, if there are any conditions or variables that might change or impact the goal use of the product, these will also be included here.

Heat Lot Number/Code

A heat number, also sometimes called a heat lot number, is in place to note the specific batch a piece of metal came from. It allows manufacturers to trace the creation of the metal all the way back to its origin, plus to verify its quality. It will be stamped or written on the metal before leaving the mill.

In cases where a manufacturing facility processes the metal in any way, this facility will create their own Heat Code. This code is similar or identical to the heat lot number, allowing for basic tracing of the product back to its source in case there are issues down the line.

Other Order Details

Finally, a mill test report will feature specifications or other details present in your exact order. If you’ve requested a particular finish based on your application needs, for instance, this will be noted in the MTR. This extends to any other important manufacturing or processing information that might be relevant throughout the life of the metal.

For more on a mill test report for any steel or metal product, or to learn about any of our steel products or services, speak to the staff at Wasatch Steel today.