Experienced in Mechanical, Chemical, Metallurgical, And Corrosion Testing
Stress durability is the test for fasteners (bolts, nuts, washers, etc.) to determine that lot has not been contaminated by hydrogen. Samples are torqued under tension or stressed and held for a period of time (48, 72, 96 hours or more), retorqued, unloaded, and then inspected for breakage.
Three common test methods used are:
- USCAR 7 Deembrittlement Verification Test
- ASTM F606
- NASM 1312-5
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Specialized testing and services include consulting, failure analysis, reverse engineering service, fastener testing, scanning electron microscopy, welder qualification, materials and process problem solving,and miscellaneous tests on non-metallic materials.
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