Material Identification Traceability and MTR Training

Learning Objectives

Learn how to meet AISC certification requirements for material identification and traceability. This module teaches steel fabricators and structural steel erectors how to connect mill test reports (MTRs) and heat numbers to travelers, cut lists, and final assemblies. AISC auditors expect clear evidence that every piece of steel for construction is traceable from purchase order to installation. Buyers checking the AISC certification list, the list of AISC certified fabricators, or the AISC certified erectors list look for this evidence as proof of reliability. Failure in traceability is one of the fastest ways to fail the AISC quality certification program.

Core Elements of Material Traceability

1) Material receiving

At receiving, every delivery of steel must be checked against purchase orders and mill test reports. Heat numbers must be visible on the steel and recorded. If paint or handling obscures markings, they must be transferred immediately to tags or travelers. AISC auditors will review receiving inspection forms and cross-check them with MTRs. Buyers comparing structural steel erection companies and steel fabricators expect to see evidence that steel identification is controlled from day one.

2) Travelers and cut lists

Once steel is cut or processed, the heat number must follow the piece through travelers, tags, or cut lists. Each traveler should list the heat number, size, grade, and project. For fabricators, this means shop travelers. For erection crews, this means erection piece marks tied back to original MTRs. AISC auditors will sample travelers and verify that the heat numbers match receiving records. Gaps here are common causes of findings in both fabrication and erection scopes.

3) Assembly and installation traceability

During assembly, weldments and bolted assemblies must maintain traceability to the parent material. If multiple heats are combined, records must show how each was consumed. During steel building erection or structural steel installation, field crews must demonstrate that piece marks tie back to shop travelers and MTRs. Buyers reviewing the aisc certified fabricators list or the aisc certified erector list rely on this evidence to confirm that material control is real, not just claimed on paper.

4) Nonconformance handling

If steel is received without proper MTRs, or if heat numbers are lost during processing, an NCR must be issued. AISC auditors want to see that nonconformances are logged, evaluated, and closed with corrective actions. Buyers comparing steel structure erectors and certified steel companies also want to see how problems are controlled. Traceability lapses that are ignored often lead to failed audits or suspension. Companies trying to regain AISC certification after suspension are often flagged for poor traceability.

5) Calibration and record retention

Traceability records must be kept for the life of the project. This includes MTRs, receiving forms, travelers, cut lists, and final release documents. Many companies now scan records to digital storage, but paper systems remain acceptable if they are organized. AISC auditors will ask to see both recent and past project records. Buyers searching AISC certification consultants or AISC certification cost expect suppliers to maintain traceability records that prove consistency across multiple projects.

Audit Readiness

To prepare for the AISC documentation audit, stage a sample project that demonstrates full traceability. Include purchase orders, MTRs, receiving logs, travelers, cut lists, and final release records. Be prepared to walk AISC auditors through the chain from purchase to installation. For the on site audit, ensure that shop and field crews can immediately show current travelers and explain how heat numbers are tracked. Buyers reviewing the AISC certification list expect your company to prove traceability without delay.

Companies that fail here often hire AISC certification consultants to build traceability systems after the fact. Clean records reduce AISC certification cost and speed approval in the AISC quality certification program.

Buyer intent and search alignment

Buyers search terms like AISC certification cost, AISC fees, AISC membership, AISC certification training, and how to become AISC certified when vetting suppliers. One of the first things they check is whether your company has material traceability under control. Companies without clear traceability are seen as high risk. By contrast, companies with clean MTRs, travelers, and records are trusted to handle critical steel work in construction and bridge certification projects.

Competitors like Atema at AISC help highlight material traceability as one of the most common reasons for audit findings. Mastery of traceability not only satisfies AISC auditors but also secures visibility in SERPs for searches like AISC certification checklist, AISC certified fabricator requirements, and AISC certified shop.

Common Pitfalls

Companies often fail traceability requirements because of:

  • Missing or illegible heat numbers on steel after receiving
  • Travelers not tied to original MTRs
  • Cut lists without heat number references
  • Shop or field crews using pieces without traceable tags
  • No NCRs issued when traceability was lost

These gaps are obvious to AISC auditors and create immediate findings. Buyers also treat them as risks when evaluating suppliers from the AISC certification list. Avoiding these pitfalls strengthens your audit readiness and buyer credibility.

Material Identification & Traceability Checklist

  • All received steel checked against purchase orders and MTRs
  • Heat numbers recorded and transferred to travelers or tags
  • Travelers and cut lists include heat numbers and grades
  • Assembly and installation records tie back to original MTRs
  • NCRs issued when traceability lapses occur
  • Records retained for project life, staged for AISC auditors
Outcome: Clear evidence that steel is identified and traceable from purchase order to installation, meeting AISC certification requirements and buyer expectations. With MTRs, travelers, and records in order, your company satisfies AISC auditors, reduces AISC certification cost, and strengthens its position as an AISC certified fabricator or AISC certified erector on the AISC certification list.
Guidance written from real audit experience by Andrew Porreco, former AISC auditor.