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The steelmaking industry is one of the most demanding industrial sectors globally, characterized by extremely high temperatures, aggressive chemical reactions, volatile gas environments, and intensive material handling. To operate safely and efficiently in such an environment, steel plants rely on a wide range of pressure vessels engineered to handle pressurized gases, liquids, and multi-phase substances across various stages of production.
From upstream ironmaking to downstream refining and emissions treatment, pressure vessels serve as mission-critical components. They enable safe gas storage, precise metallurgical control, environmental compliance, and energy efficiency improvements—functions essential for both traditional and modern low-carbon steelmaking routes.
Here are selected project cases demonstrating our capability in delivering pressure vessels for complex petrochemical units.
| Client | Equipment Name | Spec | Weight / Material |
|---|---|---|---|
| Danieli Group | Top Gas Heat Recovery Unit | φ2650 × 20/32/60 mm (wall thickness) × 15,370 mm (length) | Weight: 124 Tons Shell: SA516-70 + SA387 Gr.11 Cl.2 Tubes: SA-213 T9 Tube Sheets: SA336 Expansion Joint: SB443 UNS N06625 (Inconel 625) |
| Jingteng Haohua Technology | Synthetic Reactor | Φ2400 × 10085 mm | Weight: 37 Tons Material: INCOLOY 800 (Nickel-Iron-Chromium Alloy) |
| Jingteng Haohua Technology | Hairpin-Type Heat Exchanger | — | Weight: 200 Tons Material: — |
Purpose: Store and regulate oxygen, nitrogen, and argon for primary steelmaking (BOF, EAF), ladle refining, and protective atmospheres.
Oxygen Storage Tanks: Used for blowing oxygen into BOF/EAF to decarburize molten iron.
Argon Buffer Vessels: Employed in ladle metallurgy for argon stirring and alloy homogenization.
Nitrogen Pressure Vessels: Used for inerting, blanketing, and purging.
Key Specs:
Pressure: 2.5–4.0 MPa
Materials: Q345R, 16MnⅢ, S30408
Standards: ASME VIII Div.1, PED, GB150
Purpose: Enable low-carbon steelmaking using hydrogen as a reductant in direct reduction furnaces.
Hydrogen Storage Tanks: High-pressure vessels for buffering and distributing H₂ safely.
Surge Vessels: Stabilize hydrogen flow rates and pressure during DRI operations.
Key Specs:
Working pressure: Up to 35 MPa
Materials: 316L, S31803, Inconel
Standards: ISO 11120, ASME Section VIII Div.2
Special Features: Hydrogen embrittlement resistance, leak detection, explosion protection
Purpose: Enable ultra-low impurity control (H, O, N) and precision alloy additions during refining.
Vacuum Degassing Vessels: Used in RH/VD/VOD processes for steel purification.
Alloy Feeding Hoppers: Pressurized containers for accurate alloy dosing.
Key Specs:
Vacuum: ≤1 Pa
Materials: Q345R+304 cladding, S30408
Standards: GB150, NB/T 47058, ASME U Stamp
Purpose: Provide consistent high-pressure water for oxide scale removal and thermal management.
Water Accumulators: Stabilize water pressure in hot rolling and casting lines.
Air-over-Water Surge Tanks: Reduce pressure fluctuation during descaling.
Key Specs:
Pressure: 4–8 MPa
Materials: Carbon steel, stainless steel
Features: Corrosion-resistant lining, real-time pressure control
Purpose: Contain, neutralize, and process slag, dust, fumes, and chemical residues.
Explosion-Proof Dust Buffers: Used in pneumatic conveying of fine powders.
Slag Reaction Vessels: Pressurized reactors for granulation or neutralization.
SCR and FGD Vessels: Handle ammonia, lime slurry, or desulfurizing agents.
Key Specs:
Explosion-proof configurations
High-wear linings and thermal resistance
Integrated sensors and venting safety systems
Purpose: Recover waste heat from exhaust gases and steam systems to improve plant energy efficiency.
Steam Drums & Separators: Core components of waste heat boilers.
Flue Gas Heat Exchangers: Transfer thermal energy from hot exhaust gases.
Condensate Recovery Tanks: Collect and reuse steam condensate.
Key Specs:
Temperature: Up to 850°C
Materials: 15CrMoR, ND steel, 316Ti
Standards: GB151, TEMA, ASME
| No. | Product Name (EN) | Core Function |
|---|---|---|
| 1 | Oxygen Storage Tank | Oxygen blowing in BOF/EAF |
| 2 | Argon Buffer Vessel | Argon stirring in ladle metallurgy |
| 3 | Nitrogen Pressure Vessel | Inerting and blanketing |
| 4 | Hydrogen Storage Tank | Hydrogen supply for DRI |
| 5 | Compressed Air Receiver | Pneumatic systems |
| 6 | High-Pressure Water Accumulator | Descaling and cooling |
| 7 | Vacuum Degassing Vessel | Hydrogen and nitrogen removal |
| 8 | Pressurized Alloy Hopper | Dosing of ferroalloys |
| 9 | Pressurized Powder Silo | Lime, MgO powder storage and feeding |
| 10 | Steam Drum / Separator | Waste heat recovery systems |
| 11 | Flue Gas Heat Exchanger | Energy capture from hot gases |
| 12 | Condensate Recovery Tank | Steam system efficiency improvement |
| 13 | Explosion-Proof Dust Buffer Vessel | Dust collection and surge control |
| 14 | Desulfurization/Denitrification Reactor | Environmental flue gas treatment |
| 15 | Ammonia Storage Tank (Anhydrous/Aqueous) | SCR denitrification reagent storage |
| 16 | Air-over-Water Surge Tank | Descaling water pressure stabilization |
| 17 | Process Gas Mixing Vessel | Gas blending (O₂, Ar, N₂) for metallurgy |
| Aspect | Specification / Notes |
|---|---|
| Design Pressure | Ranges from vacuum to >35 MPa depending on function |
| Materials | Q345R, 16MnⅢ, 304/316L SS, duplex steel, Inconel, ND steel, 15CrMoR |
| Corrosion Control | Internal cladding, PTFE lining, rubber lining, epoxy coating |
| Explosion Protection | Flame arrestors, pressure relief valves, rupture discs, burst panels |
| Standards & Codes | ASME VIII, PED 2014/68/EU, GB150, NB/T 47058, ISO 11120, TEMA |
| Customization | All products can be customized for capacity, interface size, instrumentation, and more |
Pressure vessels are indispensable to the safe, clean, and efficient operation of steelmaking plants. From traditional converter-based operations to next-generation hydrogen reduction technologies, pressure vessels enable control, containment, and conversion of process-critical media.
Their importance will only grow as the industry moves toward intelligent manufacturing, low-carbon metallurgy, and energy-intensive process optimization.
Are you working on a launch vehicle, satellite, space station module, or test center?
We design and manufacture pressure vessels that meet NASA, ASME, ECSS, and MIL-STD specifications, ready for the skies—or beyond.
At Weihai Shidao Heavy Industry Co., Ltd. , we specialize in engineered pressure vessel solutions tailored for the steel industry. Our manufacturing capabilities include heavy-wall fabrication, complex nozzle assemblies, vacuum-rated structures, and heat-exchanger-grade pressure components—all certified to ASME, PED, GB, and ISO standards.
📩 Let’s build the infrastructure for modern metallurgy together.
Reach out today for custom pressure vessel consultation and supply solutions.
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Certified Safety, Reliable Quality, Custom-Engineered Pressure Vessels.
Weihai Shidao Heavy Industry Co., Ltd is a leading manufacturer of heavy equipment specializing in nuclear power components & large pressure vessels.
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