Manufacturing-focused testing of titanium fasteners produced by IperionX Limited has shown performance exceeding high-strength Grade 8 steel benchmarks, according to independent programs conducted by the US Army and third-party laboratories.
In a statement, IperionX said testing completed by the US Army DEVCOM Ground Vehicle Systems Center and Westmoreland Mechanical Testing & Research evaluated titanium fasteners made using its patented manufacturing technologies against comparable SAE Grade 8 steel components used in defence and industrial applications.
The company said the results demonstrated that its Ti-6Al-4V titanium fasteners delivered “high-strength steel-benchmark performance” while retaining the weight and corrosion-resistance advantages of titanium.
In torque-to-yield testing on 3/4-10 fasteners, IperionX titanium components recorded yield torque of 563 to 615 ft-lbf, compared with 480 to 502 ft-lbf for Grade 8 steel fasteners in the same program. The company said this placed the titanium results “nearly 20% above the high-strength Grade 8 steel benchmark” based on midpoint comparisons.
The US Army test program also found that several smaller fasteners did not yield at initial test limits, prompting expanded testing ranges to determine performance thresholds.
Independent tensile testing by WMTR under ASTM F606/F606M-25a showed yield strength of 135 to 137 ksi and ultimate tensile strength of 149 to 152 ksi, which IperionX said is above typical aerospace-grade titanium benchmarks and at or above key Grade 8 steel thresholds.
IperionX chief executive Taso Arima said the results represent “a key independent validation milestone” for the company’s manufacturing platform.
“Testing completed by the U.S. Army DEVCOM GVSC showed IperionX titanium fasteners delivered higher torque-to-yield performance than high-strength Grade 8 steel fasteners, and independent WMTR testing confirmed high-strength steel-benchmark tensile performance,” Arima said.
He added that the findings support development of a “secure domestic titanium supply chain” for defence, aerospace and industrial applications, where weight reduction, durability and supply assurance are critical.
IperionX said titanium fasteners remain a high-volume manufacturing category across defence and aerospace sectors, but broader adoption has been limited by cost and production scalability.
The company said its patented HSPT™ and THRM™ technologies are intended to address those constraints by producing titanium components with refined microstructures suitable for industrial-scale manufacturing.
