- 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 Plates > Application > Q&T Plates for Pressure Vessels & Boilers
In industries like power generation, petrochemicals, refineries, fertilizers, and oil & gas, pressure vessels and boilers operate under extreme stress, pressure, and thermal cycling. For these applications, only Quenched and Tempered (Q&T) steel plates can offer the necessary strength, ductility, and high temperature resistance.
At Hindustan Steel Corporation, we supply boiler and vessel-grade Q&T plates with high tensile strength and guaranteed impact performance, including:
These plates are built to handle high internal pressure, steam, hydrogen service, and thermal creep, while meeting international code requirements.
Q&T plates are used in various high-stress components of boilers and pressure vessels:
Industrial Applications:
Our Q&T plates are selected for thickness control, low-temperature impact strength, and superior notch toughness.
Pressure vessel steel must maintain strength under both pressure and heat:
| Property | Typical Range |
|---|---|
| Yield Strength | 460 – 700 MPa |
| Tensile Strength | 620 – 950 MPa |
| Elongation | 17 – 22% |
| Impact Resistance | ≥47J at –20°C / –40°C |
| Temperature Range | Up to 600°C (grade-dependent) |
These plates also meet hydrogen embrittlement resistance and creep strength requirements for long-term service.
Different grades serve different temperature, thickness, and pressure needs:
| Use Case | Suggested Grades |
|---|---|
| Standard steam boiler drums | SA 387 Gr 11 / EN P460QL1 |
| High-pressure thermal vessels | A517 Gr Q / SA 387 Gr 22 Cl 2 |
| Hydrogen and ammonia reactors | EN 10028-6 P690QL1 / P690QL2 |
| Thick-wall oil & gas separators | A517 Gr B / Dillimax 965T |
| Elevated temp / creep service | SA 387 Gr 91 / EN P355GH |
Plates are available with code stamping compliance (ASME, PED, EN) for project use.
We supply plates that meet global pressure vessel and thermal equipment standards:
| Standard | Common Grades Supplied | Application |
|---|---|---|
| ASTM A517 / A514 | Grade B, Q, E, F | High-strength pressure vessels |
| ASME SA 387 | Grade 11, 22, 91 (Class 2) | High-temperature boilers and steam drums |
| EN 10028-6 | P460QL1, P690QL1 / P690QL2 | Low-alloy pressure vessel steel |
| DIN / ISO / PED | Custom Q&T grades available | Hydrogen service vessels and tanks |
Supplied with full documentation per EN 10204 3.1/3.2, UT/impact test reports, and compliance with PED, IBR, or ASME Section II standards.
Our stock and mill-rolling support offers a wide range of plate dimensions:
Dimensions:
Services:
All plates are batch-traceable and ID-stamped for quality and compliance audits.
Pressure vessel fabrication demands weldable and stress-resistant plates:
We assist with WPS/PQR development, bending tolerances, and forming charts on request.
Boiler-grade Q&T plates are delivered inspection-ready and fabrication-compatible.
QA Services:
Finish Options:
We’re a preferred supplier for EPCs and OEMs in:
What sets us apart:
When temperature, pressure, and timelines are critical — HSC delivers on all fronts.
We help clients find the best fit based on temperature range, vessel type, and project budget:
| Requirement | Recommended Grades |
|---|---|
| Low temperature impact resistance | EN P690QL2 / A517 Gr Q |
| High-pressure + elevated temperature | SA 387 Gr 22 Cl 2 / Gr 91 |
| Structural + thermal load resistance | S690QL / Dillimax 890T |
| Weldability with creep strength | P460QL1 / HIND HARD 550 |
| Budget boilers with strong baseplates | SA 387 Gr 11 Cl 2 / A514 Gr B |
Our experts help you align material performance with project codes and lifecycle expectations.
We regularly export Q&T plates for pressure vessels, reactors, and boilers to EPCs and OEMs across:
Key Destinations:
Export Support:
Our Q&T plates are prepped for inspection, stamping, and direct vessel shop use.
Choosing steel for high-pressure, high-temp, or hydrogen service requires careful evaluation.
Ask These:
Grade Suggestions:
We supply all documentation required for pressure equipment registration, EPC handover, or third-party clearance.
Standard Deliverables:
Full compliance support for steam, hydrogen, ammonia, and thermal vessels.
Yes. We offer plasma and oxy-cutting to your beam length or width, as per your BOQ.
Weight reduction, higher strength, and better fuel efficiency with long-term savings.
Yes. Plates are packed on pallets or crates with wrapping, marking, and moisture protection.
Yes. S690QL, HITEN, and Dillimax weld well using standard MIG/MAG processes.
We stock from 4 mm to 80 mm for trailer-relevant use cases.
Use Strenx 700 or S700MC for optimal weight vs strength balance.
Absolutely. Share your current drawing and material spec — we’ll recommend the switch.
Yes. S890QL provides high rigidity while keeping weight low for long-body builds.
Yes. All materials are supplied with 3.1 MTCs and optional impact/UT reports.
Yes. We offer grades fit for both highway use and rugged, uneven terrains.
Shot-blasted, primer-coated, or bare finish — depending on your fabrication process.
We dispatch cut and ready stock within 3–5 days. Large volumes may take 7–10 days.
Yes. Plates can be ID stamped with size, grade, and project reference.
Yes. We support both small and bulk purchases with cut-to-size service.
Don’t compromise on safety, lifecycle, or pressure integrity. Trust Hindustan Steel Corporation for:
Reach out now:
Dispatch Hub: Taloja MIDC, Navi Mumbai
+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