Practical tensile strength of steel Here are 30 hashtags for tensile testing—mix of engineering, materials science, metallurgy, lab testing, and educational tags: 1. #TensileTest 2. #TensileTesting 3. #MaterialTesting 4. #Metallurgy 5. #MechanicalTesting 6. #EngineeringFacts 7. #EngineeringWorld 8. #StrengthTesting 9. #UTS 10. #UltimateTensileStrength 11. #YieldStrength 12. #StressStrain 13. #EngineeringEducation 14. #MaterialScience 15. #EngineeringCommunity 16. #QualityTesting 17. #LabTesting