300–600 HBW
BISALLOY® Armour Steel
hardness range
Universally Compliant
Independently tested to
US-MIL, NATO, EU, TL standards.
Australian Operated
Australia’s only manufacturer of certified ballistic armour steel
SOVEREIGN SUPPLY. CERTIFIED PERFORMANCE. DIRECT TECHNICAL ACCESS.
Three things that separate Bisalloy Steels from imported alternatives, and matter most when the programme record is on the line.
Sovereign Capability
Australian Made
Certified to AS/NZS and international standards.
Trusted Guidance
Expert Support
On Hand
Speak to real people, with proven expertise.
FULL MATERIAL SCOPE. SINGLE AUSTRALIAN SOURCE.
Bisalloy Steels cover the complete material scope of a protected platform: certified ballistic armour plate and high-strength structural steel, qualified and traceable, from a single Australian manufacturer. One source. One set of MTRs. One technical contact.
BISALLOY® ARMOUR STEEL
Quenched and tempered ballistic armour plate designed to meet defence threat protection requirements across a range of hardness grades. Independently tested to the most exacting international standards (US-MIL, NATO, EU, TL) and available with full test documentation for platform qualification. From vehicle hull protection to specialist high-hardness applications.
- 300–600 HBW hardness range
- Independently tested to international standards: US-MIL, NATO, EU, TL
- Weldability guidance and preheat procedures published for all grades
- Thickness range 5–50mm depending on grade
BISALLOY® STRUCTURAL STEEL
High-strength structural plate for platform chassis, hull frames, turret rings and load-bearing vehicle structure. For applications where strength-to-weight ratio, toughness and weldability all matter, used alongside Armour grades in complete platform construction.
- Yield strength from 500–960 MPa (Structural 60 to Structural 100)
- High Charpy impact toughness — tested to Australian and international standards
- Enables vehicle weight reduction without structural compromise
- Full traceability — mill certificates and heat numbers on every plate
Starting-point grade selection by platform
BISALLOY® Armour Steel is used across the full range of ADF platform categories. The guidance below is a starting point for grade selection; our technical team can refine recommendations for your specific threat and weight requirements.
Everything you need to specify
We produce the documentation your engineering authority needs: mechanical property data, ballistic test reports, mill certificates and weld procedures, structured for direct inclusion in platform qualification records.
Mechanical Properties
Full data for every Armour grade: hardness range, yield strength, tensile strength and Charpy impact toughness. Tested to Australian and international standards with complete traceability.
Ballistic Test Reports
Independent ballistic test data for Armour grades across US-MIL, NATO, EU and TL standards. Full test reports and supporting documentation available to qualified primes under NDA.
Certifications & Traceability
Mill certificates, heat numbers and full traceability on every plate. Material test reports available to reference directly in your platform engineering documentation.
Fabrication Guidance
Weld procedures, preheat requirements and consumable recommendations for every Armour grade. Forming and machining guidance, including advice specific to high-hardness armour fabrication.
DOWNLOADS FOR DEFENCE ENGINEERS
Grade data, ballistic documentation and fabrication guidance, structured for engineers who need to specify and qualify.
Armour Plate Steel Brochure
BISALLOY® Armour steel is specified for hulls in Armoured Personnel Carriers (APC), Light Armoured Vehicles (LAV) and the Bushmaster Infantry Mobility Vehicles in Australia, along with many APCs and LAVs worldwide.
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Technical Guide – Armour Plate Fabrication
Technical guide covering welding, cutting, bending, and drilling recommendations for Bisalloy Armour steel grades RHA300 through UHH600.
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BISALLOY® Structural Brochure
BISALLOY® Structural steel has been the product of choice for iconic construction projects including Grosvenor Place commercial office tower and Star City Lyric Theatre – entertainment venue.
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BISALLOY® Structural Steel Data Sheets
Full mechanical properties, yield and tensile strength, Charpy values and dimensions for the BISALLOY® Structural range.
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Ballistic Armour Performance Guide
Ballistic performance guide with recommended Bisalloy Armour plate thickness against STANAG 4569, EN 1522, and NIJ threat levels.
Download >SPEC IT. CHECK IT. TRUST IT.
When your project calls for Bisalloy, verify the plate you’re supplied matches the brand and grade you specified. Substitutions can compromise performance, safety, and long-term cost. A quick check upfront avoids bigger problems later.
Match
Match your order and the delivery paperwork
Check
Check the name on the plate is Bisalloy
Confirm
Get your supplier to confirm the source
QUALIFICATION SUPPORT, DIRECT FROM THE MANUFACTURER.
Our technical team works directly with defence prime engineers, platform integrators and procurement teams across ADF land and maritime programs. Whether you need grade selection advice, independent test documentation, formal equivalence statements, or test coupons for your own qualification process: bring us the specification query.
Ballistic test documentation is available under NDA. Most technical enquiries receive a response within one business day.
When you’re ready to talk, Call us on 1300 bisalloy
Not ready to get in touch contact? Download our technical guide.