Material traceability in fabrication: certificates, heat numbers and inspection gates

Why traceability is a daily task

Fabrication and project manufacturing depend on purchased material and, often, on third-party processing. Material drifts when receipt, issue, return and subcontracting are recorded in different places. MFGOS addresses this by keeping certificate and heat-number records linked to purchase and issue.

The chain to keep unbroken

• Requirement: what the job needs.
• Purchase order: what was bought, from which vendor.
• Receipt: what arrived, with its certificate and heat number.
• Issue: which job or work package took it.
• Return or surplus: what came back.
• Subcontracting: what went out for processing and what came back.

Each step refers to the one before it. A finished item can then be followed back to the certificate that supports it.

Certificates and heat numbers

A certificate states what the material is. A heat number identifies the batch it came from. Recording both at receipt, and carrying them through issue, means the question from a client or inspector, "where did this come from?", has a short answer. Without it, the team searches files after the fact.

Inspection gates

Quality is often recorded but has no consequence: an item can be marked as not accepted while billing continues. A gate changes this by making inspection status control what happens next. In MFGOS, inspection gates identify work that should not yet progress commercially.

Examples of gates

• Material cannot be issued to a job until its certificate is on record.
• Fabricated items cannot be measured for billing until inspection is accepted.
• Items sent for third-party processing need a return inspection before release.

Project economics from the same record

When planning, costs, measurement and cash exposure share one record, the cost position of a job can be read without a reconciliation exercise. Material issued appears against the work package, manpower and subcontract work appear next to it, and certified work shows what can be billed.

A review you can run this week

• Pick one finished item and trace it back to its certificate.
• Pick one job and compare material issued with material returned.
• List items inspected but not yet accepted that have already been measured.
• List subcontracted material not yet returned.

If any of these takes more than a few minutes, the chain has a break. That break is where to start configuring controls.

People and subcontractors

Traceability also covers who did the work. Attendance, crew output and subcontractor work records tied to the same package let the team compare effort with progress. When a subcontractor is paid, the amount can be checked against measured and accepted work rather than a verbal estimate. The same discipline of evidence and approval then applies to labour as it does to material.

Working with accounting

Cost and cashflow reporting can sit beside the books. The finance module covers commitments, certified work, cost exposure and Tally coexistence, so the operating record informs finance without asking it to change its tools.

Want to see how this applies to your industry? Browse the seven Kramvyu products or book a demo.