Tag: MTR

Material Test Reports (MTRs) for Fasteners

Q: What is included in a Material Test Report for fasteners?

A: Material Test Report for fasteners, also referred to as an MTR, is much more a detailed document than a Certificate of Conformance. Basically, it is a record confirming the material’s physical and chemical properties are per industry standards. This will include the percentages of each chemical element, as well as the mechanical test data like Ultimate Tensile Strength, Yield, Elongation, Reduction of Area and Hardness.   Additionally any heat treatment and raw material specifications will be included.

Key points of an MTR are:

  • Material Grade
  • Mechanical Properties
  • Chemical Analysis
  • Heat Treatment (if applicable)
  • Raw Material Specifications.

European Standards for Material Test Reports and Certificates of Conformance

Q: My customer is asking for bolts with EN 10204 3.1 and 3.2. I have no idea what that means can you help me out?
QA: EN 10204 3.1 and 3.2, as well as 2.1 all are European standards for quality certificates. The number 3.1 identifies that they require a materials test report. Version 3.2 requires that the MTR (material test report) and test data be verified by a third party. Finally, EN 10204 2.1 states that they are looking for a Certificate of Conformance on the bolts.