Titanium Storage Tank — Corrosion-Proof Tanks for Aggressive Liquids, Built to Drawing

Published by Engineering Team, Shaanxi Qianyi Tuoda Technology Co., Ltd on 2026-11-04

Titanium storage tanks · drawing to delivery

A titanium storage tank holds corrosive liquids that would perforate a steel or FRP tank in months — dilute acid, wet chlorine, hypochlorite, brine and organic acids. SXQYTD builds vertical and horizontal titanium tanks to ASME Section VIII and GB/T 150, fully welded, passivated and inspected. Below is the procurement detail that decides the grade, structure and support before you issue a PO.

Material	Gr1 / Gr2 / Gr7 / Gr12 (ASTM B265)	Principle	Static storage / buffer
Capacity	1 m³ – 100 m³ (custom)	Industry	Chemical, chlor-alkali, pharma, seawater
Design code	ASME VIII / GB/T 150 / JB/T 4745	Lead time	3–8 weeks (stock plate shortens it)

1. What a titanium tank is — by principle and by structure

By principle, a storage tank is a static vessel for hold-up and buffer — no agitator, no reaction (when an agitator or heating jacket is added it becomes a process tank or reactor). By structure, the common builds are: vertical cylindrical with conical or flat roof for large stationary volumes; horizontal cylindrical for transport, skid or low-headroom sites; and jacketed tanks where the liquid must be kept at temperature. Small units ship fully welded; very large units are shop-built in sections and field-erected.

2. Why titanium — material vs. medium vs. corrosion

Titanium forms a self-healing TiO₂ film that resists chlorides and oxidizing acids. The selection logic:

Medium	Recommended grade	Why
Dilute HCl, H₂SO₄	Gr7 / Gr12	Pd/Mo keeps film alive in reducing acid.
Wet chlorine, hypochlorite	Gr2	Strongly oxidizing; Gr2 film stable.
Organic / acetic acid	Gr2 / Gr1	Gr1 for highest purity service.
Seawater, brine	Gr2	Avoid stagnant crevices above ~70°C.

Two things that sink a titanium tank if ignored: (1) titanium is soft and low-modulus, so the tank needs a proper support ring and flat foundation with no point loads, and (2) titanium must never sit in direct metal contact with steel — use insulating gaskets and liners to stop galvanic attack. We design the support and isolation into the drawing, not as an afterthought.

3. Technical standards we build to

• Material: ASTM B265 / ASME SB-265 plate (MTC EN 10204 3.1), B338 tube if a coil is fitted.
• Tank code: ASME Section VIII Div.1 or GB/T 150 + JB/T 4745; API 650 referenced for geometry on large atmospheric tanks.
• Welding: ASME IX qualified GTAW with argon backing; weld colour acceptance silver to light straw, blue/grey rejected.
• Inspection: PT on seams, hydrostatic or pneumatic test, PMI of delivered plate, dimension and foundation-fit report.

4. Manufacturing flow — from drawing to delivery

1) Drawing & code review → 2) Material release with MTC & PMI → 3) Plate rolling and shell courses → 4) Fit-up and GTAW welding under argon → 5) Roof / bottom and nozzle welding → 6) PT inspection → 7) Hydrostatic test → 8) Pickling / passivation → 9) Support ring and insulation fitting → 10) Export packing or field-erection kit. We hold ~400 t of Gr2 plate in Baoji, so step 2 often starts within days of PO.

5. Key component performance

Item	Control value	Note
Shell thickness	3–12 mm	Zero corrosion allowance in design.
Weld colour	Silver – light straw	Contaminated weld is cut out and re-done.
Support	Ring + insulated isolation	No direct steel contact (galvanic).
Hydrostatic test	1.3 × design pressure	Per ASME / GB code.

6. Application industries

Industry	Medium	Why titanium
Acid storage	HCl, H₂SO₄	Steel/FRP fail; Gr7 lasts for years.
Chlor-alkali	Bleach, wet Cl₂	Oxidizing duty, Gr2 standard.
Pharma / fine chem	Organic acids	Metal-ion-free product.
Seawater / brine	Salt solution	No crevice failure if designed right.

7. Selection guide

By medium: oxidizing → Gr2; reducing acid → Gr7/Gr12; high-purity → Gr1. By structure: large fixed volume → vertical cylindrical; transport or low headroom → horizontal; temperature control needed → jacketed; if it also mixes or reacts, specify a process tank/reactor instead. Send medium, concentration, temperature, volume and whether heating/agitation is needed.

8. Customizable items & accessories

• Vertical / horizontal, capacity, diameter and height per footprint.
• Conical or flat roof, manway, level gauge nozzles, dip pipe and vent.
• Heating jacket or trace, insulation, titanium or lined support ring.
• Internal baffles, sight glass, thermowell, and export crate or field kit.
• Optional U-stamp, third-party inspection (SGS / TUV), extended traceability.

9. Lead time, test reports & warranty

Item	Commitment
Lead time	3–8 weeks typical; stock plate starts within days of PO.
Test reports	MTC 3.1, PT report, hydrotest record, PMI, dimension report.
Warranty	12 months against material and workmanship defects from shipment.

10. FAQ

Can a titanium tank sit on a steel support?

Only with insulation between them. Direct titanium-to-steel contact in an electrolyte causes galvanic corrosion that eats the titanium. We fit an isolating ring and liners so the two metals never touch.

Which grade for storing dilute acid?

For reducing acids like dilute HCl or H₂SO₄ without oxidizers, use Gr7 (Pd) or Gr12 (Mo/Ni); plain Gr2 would be attacked. Send the exact concentration and any oxidizer present.

Do you build large field-erected tanks?

Yes. Up to 100 m³ shop-built in courses and field-welded, or fully prefabricated for skid-mounted units. We supply the welding procedure and inspection plan for site work.