- sales@hindustansteel.com
- 390/392, Ground Floor, Shankar Mansion, Vanita Vishram Chowk, S.V.P. Road, Mumbai - 400004
Phone
+91-9820944724
+91-9820944724
Home > Our Products > Quenched and Tempered Steel Plates > Applications > Q&T Plates for Defence & Military Use
When building armored carriers, blast-resistant vehicles, missile launch pads, and mobile bridge systems, strength is not optional — it’s mission-critical. That’s why the defence and military sector relies heavily on Quenched and Tempered (Q&T) steel plates.
At Hindustan Steel Corporation, we supply military-grade high-strength Q&T plates trusted by:
These plates meet demanding specs for weight efficiency, ballistic performance, weldability, and extreme toughness, supporting everything from wheeled armored platforms to mobile missile chassis.
Q&T plates are used in both structural and protection components in defence assets:
Applications Include:
Grades like S690QL, S960QL, HITEN 980LE, A514, and Dillimax are selected for their blend of high strength and low weight.
Q&T plates used in military and defence applications are tested for toughness, ductility, and fatigue endurance:
| Property | Typical Range |
|---|---|
| Yield Strength | 690 – 1100 MPa |
| Tensile Strength | 770 – 1350 MPa |
| Elongation | 12–16% |
| Impact Resistance | ≥47J at -20°C to -40°C |
| Plate Thickness | 6 mm – 120 mm |
Tested under dynamic conditions to simulate high-stress combat and terrain environments.
Different use cases in defence projects demand precise grade matching:
| Use Case | Suggested Q&T Grades |
|---|---|
| Armored chassis & structures | S690QL, S890QL, A514 Gr Q |
| Missile truck base frames | HITEN 980LE, Dillimax 965T |
| Mobile bridges & folding ramps | Strenx 960, Dillimax 890T |
| Blast-resistant vehicle frames | A517 Gr B / HIND HARD 600 |
| Lightweight tactical vehicles | S960QL, Strenx 900, HITEN 780LE |
We help defence engineers balance strength, weldability, and project weight limits across BOM.
Q&T plates used in military applications must conform to both civil structural norms and defence-grade standards for strength and impact resistance.
| Standard | Grades Supplied | Use Case |
|---|---|---|
| EN 10025-6 | S690QL, S890QL, S960QL | Structural chassis and vehicle frames |
| ASTM A514 / A517 | Grade B, E, F, Q | Tactical vehicle and blast wall systems |
| JIS G 3128 | HITEN 780LE / 980LE | Mobile defence chassis |
| Dillinger Spec | Dillimax 690T / 890T / 965T | Folding bridges, mobile defence platforms |
| Proprietary Grades | HIND HARD 600 / 550 | Blast/impact-resistant structures |
Supplied with EN 10204 3.1 or 3.2 MTCs, UT test reports, and defence QA documentation on request
We maintain ready stock for defence-approved Q&T grades in flexible sizes:
Inventory Specs:
Processing Capabilities:
We offer military stock allocation, with fixed-grade, fixed-size agreements for urgent defence and government tenders
Military builds require precision welding, no deformation, and full fatigue performance. Our plates support:
We offer custom WPS/PQR support and advice on forming and weld sequences for military-grade applications
Every Q&T plate is quality-certified and optionally finished for combat-readiness or field integration:
QA Testing:
Finishes Available:
For DRDO, ISRO, HAL, and other projects — full traceability documentation is guaranteed.
We are a trusted steel partner for multiple defence-linked suppliers and project contractors.
Why choose Hindustan Steel Corporation:
Every defence structure has different weight-to-strength needs. We guide selection accordingly:
| Defence Application | Ideal Grades |
|---|---|
| Light armored vehicles (LAVs) | S690QL / HITEN 780LE |
| Bridge deploy systems | Dillimax 890T / Strenx 960 |
| Missile & radar truck chassis | HITEN 980LE / A514 Gr Q |
| Blast-resistant mobile base | A517 Gr B / HIND HARD 600 |
| Compact load-bearing structures | S960QL / Dillimax 965T |
For military and paramilitary engineering projects, we ensure compatibility and speed.
We support defence-linked export orders with precision-verified plates, fast logistics, and full documentation.
Countries Supplied:
Export Support Includes:
Full BOQ-to-batch coordination with EPC contractors, project managers, and government departments.
When selecting a Q&T plate for defence use, your decision must balance strength, mobility, and documentation.
Factors to Consider:
Grade Recommendation Summary:
We provide all documents required for defence audits, EPC submissions, and contract traceability:
Supplied Documents:
Documents can be customized for HAL, DRDO, ISRO, and paramilitary documentation formats.
While not ballistic-certified, our Q&T plates are often used as structural layers under certified armor.
We provide UT, Charpy impact, Z-quality, and full dimensional QA reports.
Yes. We export globally with defence-ready documentation and MTCs.
Yes. We cut-to-size as per your layout, drawing ID, or fabrication need.
Strenx 960, S960QL, and Dillimax 890T are excellent for foldable or deployable bridges.
Yes. Desert green, grey, or red oxide primed options are available.
We provide MTCs, origin certs, TPI reports, and impact results — ready for DRDO audits.
Yes. With low CE values and proper WPS, welding is efficient and stable.
From 6 mm to 120 mm — including common ranges like 8 mm, 10 mm, 12 mm, 25 mm.
Yes. We support both large BOQs and small repeat-part orders.
A517 Grade Q, HIND HARD 600, or Dillimax 965T — depending on thickness and weight.
We tag each piece with heat no., size, drawing ID, and securely shrink-wrap or crate as needed.
Yes. SGS, TUV, DNV, or any TPI agency can inspect and certify at dispatch or port.
Absolutely. Share your RFQ or tender specs — we’ll recommend the right grade mix and supply plan.
Whether you are supplying combat vehicles, tactical platforms, or mobile defence systems — you need steel that holds under threat.
Our defence-grade Q&T plates are:
Contact Hindustan Steel Corporation
Dispatch: Taloja MIDC, Navi Mumbai
Build systems that protect, move, and survive — with Q&T plates engineered for combat environments.
+91-22-66159018
+91-9820944724
sales@hindustansteel.com hindustansteel1@gmail.com
390/392, Ground Floor, Shankar Mansion, S.V.P. Road, Mumbai – 400004, India
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Covers everything from pricing and thickness to welding, impact properties, and export packaging.
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Covers everything from pricing and thickness to welding, impact properties, and export packaging.
+91-22-66159018
+91-9820944724
sales@hindustansteel.com hindustansteel1@gmail.com