IperionX (NASDAQ: IPX) fasteners top Grade 8 steel in Army tests
Filing Impact
Filing Sentiment
Form Type
6-K
Rhea-AI Filing Summary
IperionX Limited reported independent test results showing its Ti-6Al-4V titanium fasteners can match or exceed key strength benchmarks of high-strength Grade 8 steel fasteners while remaining significantly lighter. U.S. Army DEVCOM GVSC torque testing on 3/4-10 fasteners found IperionX parts reached a yield torque of 563 to 615 ft-lbf, compared with 480 to 502 ft-lbf for comparable Grade 8 steel fasteners.
Additional U.S. Army and Westmoreland Mechanical Testing & Research programs confirmed that IperionX fasteners achieved 135 to 137 ksi yield strength and 149 to 152 ksi ultimate tensile strength, above typical aerospace Grade 5 titanium benchmarks and at or above key Grade 8 steel benchmarks. The company highlights that titanium Ti-6Al-4V is typically 40% to 45% lighter than steel, positioning these fasteners for defense, aerospace, marine and industrial applications where high-strength performance, lower weight, corrosion resistance and a secure U.S. supply chain are important.
Positive
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Key Figures
Titanium fastener yield torque: 563–615 ft-lbf
Grade 8 steel yield torque: 480–502 ft-lbf
Titanium yield strength: 135–137 ksi
+3 more
6 metrics
Titanium fastener yield torque
563–615 ft-lbf
3/4-10 torque-to-yield test vs Grade 8 steel
Grade 8 steel yield torque
480–502 ft-lbf
3/4-10 torque-to-yield comparison baseline
Titanium yield strength
135–137 ksi
WMTR ASTM F606/F606M-25a tensile testing
Titanium ultimate tensile strength
149–152 ksi
WMTR tensile testing of 3/4-10 Ti-6Al-4V fasteners
Typical Grade 5 titanium strengths
120–130 ksi yield; 130 ksi ultimate
Benchmark values for ASTM F468 Grade 5 titanium
Titanium weight advantage
40%–45% lighter than steel
Ti-6Al-4V vs steel in defense and aerospace uses
Key Terms
torque-to-yield, Ti-6Al-4V, ASTM F606/F606M-25a, SAE Grade 8 Steel Fasteners, +2 more
6 terms
torque-to-yield technical
"Representative 3/4-10 x 3.0-inch torque-to-yield data from commercial Grade 8 steel"
Torque-to-yield is a fastening method where a bolt is tightened past its elastic limit so it stretches slightly and settles permanently, similar to bending a paperclip just enough so it doesn’t spring back. Investors should care because it affects product reliability, repair costs and manufacturing processes: parts assembled this way can be stronger and more uniform but often require replacement after removal, influencing warranties, service expenses and supply-chain decisions.
Ti-6Al-4V technical
"IperionX Ti-6Al-4V fasteners delivered higher torque-to-yield performance"
Ti-6Al-4V is a commonly used titanium alloy made of about 6% aluminum and 4% vanadium mixed with titanium; think of it as a premium, lightweight metal that combines the strength of steel with the weight of aluminum. Investors care because its unique combination of strength, lightness and corrosion resistance makes it a critical input for aerospace, medical implants and high-performance manufacturing, so its availability, price and regulatory approvals can directly affect costs, contracts and profit margins.
ASTM F606/F606M-25a technical
"WMTR completed ASTM F606/F606M-25a tensile testing on IperionX 3/4-10"
A technical standard that prescribes how to measure the mechanical strength and performance of threaded fasteners, washers, rivets and similar small metal parts using agreed test methods and units. Think of it as a certified recipe and ruler for checking how much load a screw or washer can take before it bends or breaks. For investors, compliance signals reliable product quality, smoother regulatory approval, lower recall risk and clearer manufacturing comparability across suppliers.
SAE Grade 8 Steel Fasteners technical
"against comparable high-strength SAE Grade 8 steel fasteners currently used"
HSPT™ and THRM™ technical
"IperionX's proprietary HSPT™ and THRM™ technologies convert titanium powder"
DEVCOM Ground Vehicle Systems Center (GVSC) technical
"U.S. Army DEVCOM Ground Vehicle Systems Center (GVSC) and Westmoreland"
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 6-K
REPORT OF FOREIGN PRIVATE ISSUER
Pursuant to Rule 13a-16 or 15d-16 of the
Securities Exchange Act of 1934
Date: June 1, 2026
Commission File Number: 001-41338
IperionX Limited
(Translation of registrant’s name into English)
1092 Confroy Drive
South Boston, Virginia
(Address of principal executive offices)
Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.
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Form 20-F ☒
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Form 40-F ☐ |
EXHIBIT INDEX
The following exhibits are filed as part of this Form 6-K:
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Exhibit
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Description
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99.1
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Press Release
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SIGNATURE
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.
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IPERIONX LIMITED
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(registrant)
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Date:
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June 1, 2026 |
By:
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/s/ Marcela Castro | |
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Name:
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Marcela Castro | |
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Title:
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Chief Financial Officer |
Exhibit 99.1
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PRESS RELEASE
| NASDAQ: IPX | ASX: IPX
June 1, 2026
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U.S. ARMY TESTING SHOWS IPERIONX TITANIUM FASTENERS EXCEED GRADE 8 STEEL TORQUE-TO-YIELD PERFORMANCE
U.S. Army DEVCOM GVSC and independent WMTR testing demonstrate high-strength steel-benchmark performance for IperionX Ti-6Al-4V fasteners, supporting U.S.
defense industrial-base resilience and lightweighting initiatives
HIGHLIGHTS
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Independent, third-party product-level validation: Testing completed by the U.S. Army Combat Capabilities Development Command (DEVCOM) Ground Vehicle Systems Center (GVSC)
and Westmoreland Mechanical Testing & Research (WMTR) validates the performance of IperionX titanium fasteners manufactured with advanced patented titanium technologies
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Torque-to-yield performance above Grade 8 steel: IperionX 3/4-10 x 3.0-inch titanium Ti-6Al-4V fasteners demonstrated yield torque of 563 to 615 ft-lbf in U.S. Army DEVCOM
GVSC testing, compared with approximately 480 to 502 ft-lbf for SAE Grade 8 steel fasteners. Based on the midpoint, the IperionX result was nearly 20% above the high-strength Grade 8 steel benchmark
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Lighter, stronger titanium fasteners with repeatability: Across independent 3/8-16 x 1.0-inch testing, IperionX titanium fasteners achieved average yield torque greater than
high-strength Grade 8 steel fasteners, with three of five titanium fasteners not yielding at the U.S. Army strength test protocol limit
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Independent tensile results exceed aerospace-grade titanium benchmarks: WMTR tensile testing under ASTM F606/F606M-25a on IperionX 3/4-10 titanium fasteners, confirmed 135
to 137 ksi yield strength and 149 to 152 ksi ultimate tensile strength - ~15% above the industry standard for aerospace-grade titanium fasteners
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Fully domestic, secure U.S. titanium supply chain: The results support IperionX's patented manufacturing technologies for high-value, performance-critical finished titanium
components for defense, aerospace, marine and advanced industrial applications
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IperionX CEO Taso Arima said:
“These results represent a key independent validation milestone for IperionX’s high-performance titanium fasteners manufactured with our advanced patented titanium technologies.
High-strength titanium fasteners are a large-volume repeat-order component category across defense, aerospace, marine and industrial platforms, where weight reduction, corrosion resistance, lifecycle
performance and supply assurance are strategically important.
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.
Notably, IperionX titanium fasteners exceeded the U.S. Army’s test limits and required substantially higher torque ranges to determine yield performance.
These successful independent test results highlight our progress in building an all-American titanium supply chain that can support U.S. defense, aerospace and advanced industrial sectors.”
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Virginia
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Tennessee
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Utah
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1092 Confroy Drive
South Boston, VA 24592
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279 West Main Street
Camden, TN 38320
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1782 W 2300 S
West Valley City, UT 84119
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IperionX Limited ABN 84 618 935 372
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IperionX Limited (NASDAQ: IPX, ASX: IPX) (IperionX) is pleased to announce positive titanium
fastener test results from independent testing programs completed by the U.S. Army DEVCOM Ground Vehicle Systems Center (GVSC) and Westmoreland Mechanical Testing & Research (WMTR).
The testing programs evaluated titanium fasteners produced using IperionX patented technologies against comparable high-strength SAE Grade 8 steel fasteners currently used in demanding defense and
industrial applications. The results demonstrate that IperionX titanium fasteners can deliver high-strength steel-benchmark mechanical performance while retaining the weight-reduction and corrosion-resistance advantages associated with titanium.
Performance results
U.S. Army DEVCOM GVSC completed torque-to-failure and torque-tension testing on IperionX 3/8-16 x 1.0-inch and 3/4-10 x 3.0-inch titanium Ti-6Al-4V fasteners, comparing their performance against
conventional high-strength Grade 8 steel fasteners and aerospace grade titanium fasteners used in demanding industrial and defense applications.
In the 3/4-10 fastener test program, IperionX titanium fasteners did not yield at the initial test limit established for high-strength Grade 8 steel. GVSC subsequently increased the test range to
determine titanium fastener yield behavior. IperionX titanium fasteners demonstrated yield torque of 563 to 615 ft-lbf, compared with 480 to 502 ft-lbf for high-strength Grade 8 steel fasteners under the same test program.
In the 3/8-16 fastener test program, IperionX titanium fasteners successfully achieved average yield torque above high-strength Grade 8 steel fasteners. Three of five IperionX titanium fasteners did
not yield at the initial Army test protocol limit.
Figure 1: Representative 3/4-10 x 3.0-inch torque-to-yield data from commercial Grade 8 steel and IperionX Ti-6Al-4V fasteners.
Independent tensile strength testing
WMTR completed ASTM F606/F606M-25a tensile testing on IperionX 3/4-10 x 3.0-inch Ti-6Al-4V titanium fasteners. IperionX titanium fasteners achieved 135 to 137 ksi yield strength and 149 to 152 ksi
ultimate tensile strength, above typical aerospace Grade 5 titanium fastener benchmarks and at, or above, key high-strength Grade 8 steel fastener benchmarks.
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Fastener Type
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Typical min.
yield strength (ksi)
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Typical min.
ultimate tensile strength (ksi)
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ASTM F468 Grade 5 Titanium Fasteners
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120-130
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130
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SAE Grade 8 Steel Fasteners
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130
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150
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IperionX Titanium Fastener Test Results
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135-137
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149-152
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Table 1: Independent tensile testing summary
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Fastener Type
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Typical min. torque yield point (Ft.lbf)
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SAE Grade 8 Steel Fasteners
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478
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IperionX Titanium Fastener Test Results
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563-615
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Table 2: 3/4-10 torque testing summary
Commercial relevance for defense and aerospace supply chains
Titanium fasteners are a high-volume, high-value repeat-purchase category across aerospace, defense, marine and industrial applications where corrosion resistance, weight reduction and high-strength
performance are critical.
Titanium Ti-6Al-4V is typically 40% to 45% lighter than steel and delivers strategic lightweighting for increased payload capacity, heavier armor allowances and extended operational ranges. However,
widespread use of titanium fasteners has been constrained by cost, availability and the ability to produce low-cost, high-performance fasteners at scale.
The test results are strategically important because they support a pathway for titanium fasteners to address applications where high-strength mechanical performance, lower component weight, corrosion
resistance and secure domestic supply are vital for customers.
The successful program supports IperionX’s strategy to build an end-to-end U.S. titanium supply chain for lower-cost titanium products for the defense industrial base and U.S. Army development
activities for ground vehicles. IperionX’s titanium manufacturing platform offers a secure domestic source of high-performance titanium components aligned with U.S. priorities on defense industrial-base resilience, supply assurance and advanced
manufacturing capability.
Proprietary technology advantage
IperionX's proprietary HSPT™ and THRM™ technologies convert titanium powder into high-performance titanium components with refined microstructures and mechanical properties suitable for demanding
applications.
The U.S. Army and independent testing results validate IperionX’s patented titanium powder-to-product manufacturing platform. They highlight that IperionX high-strength titanium fasteners can exceed
titanium industry strength benchmarks and compete with high-strength steel thresholds while retaining titanium’s exceptional weight and corrosion-resistance advantages.
This announcement has been authorized for release by the CEO and Managing Director.
For further information and enquiries please contact:
info@iperionx.com
+1 980 237 8900
3
About IperionX
IperionX is a leading American titanium metal and critical materials company – using patented metal technologies to produce high performance titanium alloys, from titanium minerals or scrap titanium,
at lower energy, cost and carbon emissions.
Our Titan critical minerals project is the largest JORC-compliant mineral resource of titanium, rare earth and zircon minerals sands in the United States.
IperionX’s titanium metal and critical minerals are essential for advanced U.S. industries including space, aerospace, defense, consumer electronics, automotive and additive manufacturing.
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Forward Looking Statements
Information included in this release constitutes forward-looking statements. Often, but not always, forward looking statements can generally be identified by
the use of forward-looking words such as “may”, “will”, “expect”, “intend”, “plan”, “estimate”, “anticipate”, “continue”, and “guidance”, or other similar words and may include, without limitation, statements regarding plans, strategies
and objectives of management, anticipated production or construction commencement dates and expected costs or production outputs.
Forward looking statements inherently involve known and unknown risks, uncertainties and other factors that may cause the Company’s actual results,
performance, and achievements to differ materially from any future results, performance, or achievements. Relevant factors may include, but are not limited to, changes in commodity prices, foreign exchange fluctuations and general
economic conditions, increased costs and demand for production inputs, the speculative nature of exploration and project development, including the risks of obtaining necessary licenses and permits and diminishing quantities or grades of
reserves, the Company’s ability to comply with the relevant contractual terms to access the technologies, commercially scale its closed-loop titanium production processes, or protect its intellectual property rights, political and social
risks, changes to the regulatory framework within which the Company operates or may in the future operate, environmental conditions including extreme weather conditions, recruitment and retention of personnel, industrial relations issues
and litigation.
Forward looking statements are based on the Company and its management’s good faith assumptions relating to the financial, market, regulatory and other
relevant environments that will exist and affect the Company’s business and operations in the future. The Company does not give any assurance that the assumptions on which forward looking statements are based will prove to be correct, or
that the Company’s business or operations will not be affected in any material manner by these or other factors not foreseen or foreseeable by the Company or management or beyond the Company’s control.
Although the Company attempts and has attempted to identify factors that would cause actual actions, events or results to differ materially from those disclosed
in forward looking statements, there may be other factors that could cause actual results, performance, achievements, or events not to be as anticipated, estimated or intended, and many events are beyond the reasonable control of the
Company. Accordingly, readers are cautioned not to place undue reliance on forward looking statements. Forward looking statements in these materials speak only at the date of issue. Subject to any continuing obligations under applicable law
or any relevant stock exchange listing rules, in providing this information the Company does not undertake any obligation to publicly update or revise any of the forward-looking statements or to advise of any change in events, conditions or
circumstances on which any such statement is based.
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FAQ
What did U.S. Army testing show about IperionX (IPX) titanium fasteners?
U.S. Army DEVCOM GVSC tests showed IperionX Ti-6Al-4V titanium fasteners achieved higher torque-to-yield performance than comparable Grade 8 steel fasteners, demonstrating steel-benchmark strength while retaining titanium’s lighter weight and corrosion-resistance advantages for demanding defense and industrial applications.
How do IperionX (IPX) titanium fasteners compare to Grade 8 steel in torque testing?
In 3/4-10 fastener tests, IperionX titanium fasteners showed yield torque of 563 to 615 ft-lbf, versus 480 to 502 ft-lbf for high-strength Grade 8 steel. Several titanium fasteners did not yield at the Army’s initial test limits, requiring higher torque ranges to determine yield.
What tensile strengths did IperionX (IPX) titanium fasteners achieve in independent testing?
Westmoreland Mechanical Testing & Research reported IperionX 3/4-10 Ti-6Al-4V fasteners achieved 135 to 137 ksi yield strength and 149 to 152 ksi ultimate tensile strength, above typical aerospace Grade 5 titanium benchmarks and at, or above, key high-strength Grade 8 steel benchmarks.
Why are the IperionX (IPX) titanium fastener results important for defense and aerospace supply chains?
The results support using titanium fasteners in high-strength applications that previously relied on steel. Titanium Ti-6Al-4V is typically 40% to 45% lighter than steel, offering weight reduction, corrosion resistance and a pathway to a secure, domestically sourced titanium supply chain for U.S. defense and aerospace sectors.
What proprietary technologies does IperionX (IPX) use to make these titanium fasteners?
IperionX uses its patented HSPT™ and THRM™ technologies to convert titanium powder into high-performance components. These processes refine microstructures and mechanical properties, enabling titanium fasteners that can exceed conventional titanium strength benchmarks and compete with high-strength steel in demanding applications.
Which industries could benefit from IperionX (IPX) titanium fasteners and materials?
IperionX targets advanced U.S. industries including space, aerospace, defense, consumer electronics, automotive and additive manufacturing. Titanium fasteners’ combination of high strength, lower weight and corrosion resistance is suited to aerospace, defense, marine and industrial platforms requiring repeat-purchase, high-performance components.