What Makes DSQ Plates Suitable for Acidic Pickling Conditions?
Dead Soft Quality (DSQ) plates are uniquely suited for pickling plants due to their high ductility, zero-springback forming behavior, and consistent surface finish under corrosive, acid-exposed environments. Pickling processes—typically involving hydrochloric or sulfuric acid—demand steel plates that resist micro-cracking, warping, and premature corrosion during prolonged exposure to acidic solutions. DSQ plates meet this demand by offering ultra-soft temper and excellent elongation properties as per IS 8917:1978, making them ideal for pickling tanks, fume ducting, acid sluices, and chemical trough linings.
Applications of DSQ Plates in Pickling Lines & Acid Wash Plants
In industrial pickling facilities, DSQ steel plates are primarily used in:
- Pickling Tanks (constructed to resist acid immersion cycles)
- Fume Ducts & Hoods (form-bent structures)
- Sluice Channels (formed flow paths for acid handling)
- Acid Recovery Units
- Trough Liners & Splash Guards
- Pickling Plant Storage Vessels
Their cold-formable nature allows press-bending and corner welding without fracture or deformation—essential for customized acid-resistant containers.
DSQ Mechanical & Chemical Behavior in Acid Pickling Environments
- Tensile Strength: 280–410 MPa
- Yield Strength: 180–230 MPa (low yield aids formability)
- Elongation: Up to 38%
- Carbon Content: Typically under 0.15%
- Surface Finish: Cold-rolled or hot-rolled, with scale-free preparation
- Weldability: Excellent, ideal for bottom-welded and seam-joined tanks
This combination of low hardness and controlled carbon makes DSQ the preferred choice over standard mild steel in high-acid exposure environments.
Conforming to Indian Standards – IS 8917:1978 for DSQ
DSQ plates for pickling tanks are governed by the Bureau of Indian Standards under IS 8917:1978, which specifies dead soft grades suitable for cold-forming and acid applications. At Hindustan Steel, we ensure full test certificates for chemical composition, tensile, and flattening properties as per BIS norms.
Size Range and Custom Fabrication Readiness
- Thickness: 2.5 mm to 12 mm (custom thickness on request)
- Width: 1000 mm to 2500 mm
- Length: 2500 mm to 12000 mm or coil-cut-to-size
- Supply Form: Mill edge or sheared, descaled, oil-free surface
We also offer cut-to-size blanking and bending assistance for ready-to-fabricate DSQ components used in pickling line installations.
How DSQ Plates Compare to IS 2062 in Pickling Plants
| Parameter | DSQ Plate | IS 2062 (E250) |
|---|---|---|
| Formability | Excellent (Dead Soft) | Moderate |
| Acid Resistance | Higher | Lower |
| Cold Bending | Crack-free | Risk of springback |
| Ideal Application | Acidic Tank Fabrication | General Structure |
For precision bending and zero-defect forming in pickling environments, DSQ is the superior material choice.
DSQ Plate Welding Tips for Acid Contact Applications
Use low hydrogen electrodes or TIG welding for best results in DSQ plate welding. Ensure edges are descaled and moisture-free prior to weld seam fabrication. Post-weld pickling or passivation is also recommended for extended tank life.
Why Buyers Trust Hindustan Steel Corporation for DSQ Supply
- ISO & BIS approved DSQ plates
- Strict compliance to IS 8917:1978
- In-house blanking, leveling & machining
- Fast delivery to tank fabricators & OEMs
- Technical documentation & traceability
Our HIND DSQ line is a trusted brand among EPC contractors, galvanizing plant OEMs, and acid equipment fabricators across India, UAE, and Africa.
Related Grades & Alternatives for Acid Tank Projects
- IS 2062 E250 (for non-acid tanks)
- ASTM A283 Grade C (moderate formability)
- Sailma E250 – for structural rigidity where needed
- SS316L – for extreme acid resistance (costlier)
For cost-effective and formable steel in acidic conditions, DSQ remains unmatched.
Exporting DSQ Plates for Pickling Plants – Global Reach
We serve buyers across:
- Saudi Arabia, UAE, Oman, Egypt – For galvanizing and pickling plant projects
- East & West Africa – For tank and trough fabrication
- Bangladesh, Nepal – For textile and metal treatment plants
Our plates are packed with anti-rust coating and wood pallets to prevent corrosion during transit.
Buyer Tips – How to Select the Right DSQ Plate
- Choose low carbon, soft-rolled plates
- Ask for flattening & elongation test reports
- Check if supplier conforms to IS 8917
- For tanks, ensure weldable and bend-tested stock
- Avoid IS 2062 or CRCA for acidic applications
Quality Assurance & Certifications We Offer
- BIS Certification (IS 8917:1978)
- ISO 9001:2015 QMS
- Lab-tested chemical and mechanical test reports
- Custom stamping & heat numbers
- NABL-approved 3rd-party inspection (on request)
FAQs – DSQ Steel Plate for Pickling Lines
What is the difference between DSQ and CRCA steel?
DSQ is softer, more formable, and used for forming; CRCA is harder and used where rigidity is needed.
Is IS 8917 compliance mandatory for pickling tanks?
Yes, it ensures your steel plate is qualified for cold-forming and acid usage.
Are DSQ plates better than IS 2062 for pickling plants?
Absolutely. IS 2062 is a general structural grade and may not perform well under acid exposure.
Can DSQ plates be cut and bent at site?
Yes, they are ideal for onsite cold bending, forming, and welding.
Looking for customized DSQ plates for pickling tank fabrication? Contact us today for mill-direct pricing, shortest lead time, and full documentation. We supply cut-to-size, acid-resistant DSQ plates across industries.