- 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 > Quenched & Tempered Plates for Construction Equipment Manufacturers
From backhoes and bulldozers to telescopic booms and mobile concrete mixers — the construction industry relies on durable, high-strength plates that don’t fail under extreme stress. That’s why Q&T (Quenched and Tempered) steel plates are the preferred choice for heavy-duty construction equipment manufacturing.
These plates are heat-treated to deliver:
At Hindustan Steel Corporation, we supply a wide range of construction-grade Q&T plates such as S690QL, A514, HITEN 780LE, Dillimax 690T, Strenx 700, and our own HIND HARD 500/550 series — all with guaranteed performance for mobile and static construction machinery.
Q&T plates are essential for the fabrication of stress-prone and load-bearing parts of construction machines:
Construction Equipment Applications:
These plates allow equipment manufacturers to achieve better payload-to-weight ratio, improved wear life, and reliable weld joints in outdoor, vibrating, and load-shifting conditions.
Typical mechanical values of Q&T plates used in construction machine components include:
| Property | Typical Range |
|---|---|
| Yield Strength | 690 – 980 MPa |
| Tensile Strength | 770 – 1300 MPa |
| Elongation | 10–15% |
| Impact Resistance | ≥47J at -20°C / -40°C |
| Plate Thickness | 6 mm – 120 mm |
These properties ensure long life, weld safety, and resistance to deformation under dynamic loads.
We help clients choose Q&T plates based on part design, terrain use, and stress profile:
| Application Zone | Recommended Grades |
|---|---|
| Arms, booms, and backhoe parts | S690QL, HITEN 780LE, Strenx 700 |
| Chassis and frames | A514 Gr B, Dillimax 690T, HIND HARD 500 |
| Welded and folded parts | HITEN 780LE / S890QL (better bendability) |
| Shock + structural combo | Dillidur 500 / HIND HARD 550 |
All plates are available with cut-to-size, UT-tested, MTC-certified, and primer-coated options.
Construction equipment parts are built to perform under heavy cyclic loading and harsh outdoor conditions. That’s why we supply Q&T plates conforming to international standards:
| Standard | Grades Supplied | Used For |
|---|---|---|
| EN 10025-6 | S690QL / S890QL / S960QL | Earthmoving machines, mobile cranes |
| ASTM A514 / A517 | Grade B / F / Q | Chassis, booms, and support frames |
| JFE HITEN Series | 780LE, 980LE | Excavator arms, pavers, linkages |
| Dillinger Series | Dillimax 690T / 890T | Outriggers, bridge slabs, crane booms |
| SSAB Strenx Series | Strenx 700 / 900 | Weight-saving equipment designs |
We guide clients to the best-fit standard and grade based on project region, machine usage, and WPS/WPQ requirements.
We maintain a wide range of Q&T plate dimensions to support fast supply for construction machinery orders:
Dimensions:
Fabrication Support:
We deliver ready-to-assemble Q&T plates aligned with your equipment design drawings.
Despite their strength, our Q&T plates maintain excellent process compatibility:
Welding Guidelines:
Formability:
Our technical support team can guide your fabrication crew with bend charts and WPS inputs.
All Q&T plates for machinery are supplied with:
We also offer third-party inspection via SGS, TUV, Lloyd’s, or client-nominated agencies.
Hindustan Steel Corporation is one of India’s most reliable stockist-supplier-processors of high-performance Q&T plates with:
From bridge-building to dump trucks, our Q&T plates form the backbone of engineering that moves the world.
Based on grade availability or project feasibility, we offer the following alternatives:
| Required Feature | Recommended Grade |
|---|---|
| Lightweight with high fatigue | Strenx 900 / HITEN 980LE |
| Extreme strength and weldability | Dillimax 890T / S960QL |
| Cost-effective load plates | S690QL / A514 Grade B |
| Shock resistance + wear combo | Dillidur 500 / HIND HARD 500 |
Let us help match the plate to your machine’s load map, impact zone, and weight balance.
Construction-grade Q&T steels are chosen not just for their strength — but also for field weldability and shop fabrication:
Formability Features
Weldability Feature
Our team can advise on bend charts, welding prep, and equivalent grade selection during fabrication planning.
Every plate is delivered shop-ready, with additional finish and testing options:
Plates are prepped to reduce your site prep time and ensure installation reliability
At Hindustan Steel Corporation, we bring decades of experience in supplying high-strength steels for equipment OEMs and project contractors.
Why buyers prefer us:
Whether it’s a 60-ton crane or a mobile road paver — our plates help you build lighter, stronger, and more reliable machines.
Depending on your design or availability needs, we also offer equivalent or better-performing options:
| Use Case | Alternative Grades |
|---|---|
| Chassis or mainframe strength | A514 Grade B / S690QL / Dillimax 690T |
| Folded components / crane booms | HITEN 780LE / Strenx 700 / S890QL |
| Impact + abrasion combo areas | HIND HARD 500 / Dillidur 500 |
| Lightweight structural redesign | Strenx 900 / HITEN 980LE |
You’ll get suggestions based on budget, machine performance goals, and weld compatibility.
Our construction-grade Q&T plates are exported to machine builders and EPC contractors across:
Export Destinations:
Export Support Includes:
Ready to ship from Nhava Sheva or Mundra, India, with support for project bulk orders.
Construction machinery is diverse — and so are its steel needs. Here’s how we help you decide:
Ask yourself:
We recommend:
Every plate comes with full compliance documentation, ensuring project approval and welding traceability.
Supplied with:
Weldability notes, hardness charts, and equivalent material guides are available on request.
Yes. Plates like HITEN 780LE and S890QL allow cold bending with tight radii.
Only for thick sections (>40mm). Most construction-grade Q&T plates weld easily with low-hydrogen rods.
Typically 690 MPa, but HITEN 980LE or Strenx 900 may be used for high-lift systems
Yes. All plates are supplied with corrosion-resistant primer and packaging for long site shelf life.
We offer 6 mm to 120 mm, depending on the grade and application.
Absolutely. All project-grade Q&T plates are provided with CE and 3.1 MTCs.
Yes. All crane or frame-specific grades are UT-tested per EN 10160 or ASTM A578.
Both. We stock common sizes and can import project-specific grades with lead time.
Q&T plates provide 2–3x the strength of MS plates, allowing you to reduce thickness and total machine weight.
HITEN 780LE and A514 Grade B perform well in heavy weld zones with minimal distortion.
Yes. We offer plasma/oxyfuel cutting, edge beveling, and ready-to-weld profiles.
S690QL (EN), A514 (ASTM), HITEN (JIS), and Strenx (SSAB) all align with global standards.
Yes. Full datasheets, chemical/mechanical test results, and impact values are supplied.
For in-stock sizes, 2–4 days to dispatch. For import-based grades, lead time is 4–6 weeks.
Need reliable, fatigue-resistant plates for your excavators, booms, cranes, or pavers?
Get it from Hindustan Steel Corporation:
Dispatch from: Taloja MIDC, Navi Mumbai, India
+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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+91-22-66159018
+91-9820944724
sales@hindustansteel.com hindustansteel1@gmail.com