Attachment 1 - TDP LLDAX1038 VER001 SPMYM326Q4053.pdf

This is a Technical Data Package (TDP) for a Metal HY-80 Steel Plate (NIIN: LLDAX1038) dated March 30, 2026, Version 001. The material is designated for critical shipboard system applications where defects could result in catastrophic failure, personnel injury, or loss of vital systems.

The contract requires Grade HY-80, Type II steel plate in 1-1/2" thickness with high yield strength properties, meeting specifications in T9074-BD-GIB-010/0300 Revision 2. Base materials must comply with requirements for Low Alloy Steel Plate, Forgings, Castings, Shapes, Bars, and Head of Coils per HSLA-80/100. Virgin raw materials are required, and first article inspection is mandatory. Testing certifications are required for quality conformance/compliance inspection, chemical/mechanical/heat treatment analysis, ultrasonic inspection (soundness and thickness), chemical or spectrographic analysis, tension testing, and impact testing, all performed to T9074-BD-GIB-010/0300 specifications. The contractor must submit a Process Control Plan, Qualification Plan, and maintain First Article Test approval per DI-NDTI-80809. All manufacturing facilities must meet recertification requirements every five years. Material traceability is mandatory with unique traceability codes marking heat, batch, and form information on finished items. The contractor must maintain ISO-9001 compliant quality systems with calibration per MIL-STD-45662 and provide Government Quality Assurance at source. Configuration control, engineering change proposals for Class I and II changes, and comprehensive receiving inspection procedures including verification of traceability markings and certification test report compliance are required. Mercury-free material is mandated, and the contractor must ensure adequate storage, handling, and functional testing of Government-furnished material or equipment when applicable.