ASTM A1108 is the standard test method for determining the ultimate strength of deep corrugated structural plate bolted longitudinal lapped seams. It provides a defined way to evaluate how these seam connections perform under load, helping engineers, manufacturers, and buyers compare results with greater confidence. Because the standard focuses on ultimate strength, it is especially useful for assessing connection performance in structural plate assemblies where seam reliability can affect overall serviceability and safety.

ASTM A1108 standard overview

This ASTM standard addresses a specific test method for bolted longitudinal lapped seams used in deep corrugated structural plate systems. Its purpose is to measure the maximum strength of the seam connection in a controlled and repeatable way. That makes ASTM A1108 relevant to technical review, product qualification, and verification of connection performance. By defining a common testing approach, it supports consistent evaluation of seam behavior across different products or fabrication methods.

Where is ASTM A1108 used?

The standard is commonly used in the testing and evaluation of deep corrugated structural plate assemblies that rely on bolted longitudinal lapped seams. It is most relevant in settings where structural plate components are manufactured, assembled, or inspected before installation. ASTM A1108 may also be used in procurement and quality control workflows when confirming that seam connections meet expected performance levels for engineering applications. Its use is centered on connection testing rather than broad material characterization.

Practical importance of ASTM A1108

ASTM A1108 matters because seam strength can be a critical factor in the performance of structural plate systems. A consistent test method helps reduce uncertainty during product evaluation and supports fair comparison between suppliers or fabrication runs. It can also aid compliance efforts, acceptance testing, and internal quality control by providing a recognized benchmark for ultimate strength. For purchasers and engineers, ASTM A1108 helps make seam performance easier to specify, verify, and document.

• Ultimate strength of bolted lap seams
• Deep corrugated structural plate applications
• Repeatable connection testing
• Quality control and product evaluation
• Performance verification for procurement