Introduction

Hastelloy G-30 Alloy (also Hastelloy G30, Alloy G-30, Nickel Alloy G-30, UNS N06030 Alloy) is a high‑chromium nickel‑based alloy designed for outstanding resistance to phosphoric acid, nitric acid, and mixed acids. It conforms to ASTM B582 (plate/sheet), ASTM B619 (welded pipe), ASTM B622 (seamless pipe/tube), and ASTM B581 (bar), as well as ASME SB582 and SB619. This advanced chemical process alloy is widely specified in the fertilizer industry, where it outperforms stainless steels and many other nickel alloys in aggressive acid environments.

Key properties of Hastelloy G-30:

• Exceptional phosphoric acid resistance – superior performance in wet process phosphoric acid (WPA) and superphosphoric acid, especially with fluoride and chloride impurities

• Nitric acid resistant alloy – excellent resistance to concentrated and fuming nitric acid, as well as mixed acid streams (HNO₃ + HCl, HNO₃ + HF)

• Sulfuric acid resistant nickel alloy – good resistance to dilute sulfuric acid and mixed acid solutions containing chlorides

• Oxidizing acid resistant material – high chromium content (approx. 30%) provides outstanding performance in oxidizing environments

• High chromium nickel alloy – maintains corrosion resistance in both reducing and oxidizing conditions

• Chloride resistant nickel alloy – excellent pitting and crevice corrosion resistance in halide‑containing media

• Superior corrosion resistance in mixed acids – ideal for processes where multiple acids (phosphoric, nitric, sulfuric, hydrofluoric) are present

• Advanced chemical process alloy – suitable for heat exchangers, evaporators, and reactor vessels in severe acid service

Note: G-30 is particularly suited for phosphoric acid evaporators, superphosphoric acid lines, and nitric acid tail gas heaters. It is not recommended for severely reducing environments (use B‑2/B‑3 instead).

This fertilizer industry alloy is available in all product forms: Hastelloy G-30 Plate, Pipe, Tube, Bar, and Forging. Our industrial nickel alloy manufacturer supplies hot rolled plate, cold rolled sheet, seamless/welded pipe, round bar, and forged bar in solution annealed condition with pickled or polished surfaces, custom sizes, and cut to length. Our product range includes Hastelloy G-30 seamless pipe, welded pipe, plate (6mm, 12mm), sheet 4x8, round bar (50mm), tube, and Hastelloy G-30 forging.

Specifications & Process Options

We provide Hastelloy G-30 Size Chart, Thickness Chart, Weight Chart, and Tube Dimensions – request yours.

Applications

1. Phosphoric Acid Production & Fertilizer Plants

• Hastelloy G-30 for phosphoric acid production – evaporator tubes, heat exchanger shells, and piping in wet process phosphoric acid (WPA) plants. Exceptional phosphoric acid resistance extends equipment life in aggressive phosphate rock digestion (with chlorides, fluorides, and silicates).

• Hastelloy G-30 for fertilizer plants – superphosphoric acid concentrators, reactor vessels, and transfer lines for NPK fertilizer production. High chromium nickel alloy withstands mixed acid conditions (H₃PO₄ + H₂SO₄ + HF).

• Hastelloy G-30 for wet process phosphoric acid systems – flash cooler tubes, slurry piping, and filtration equipment. Superior corrosion resistance in mixed acids reduces downtime.

2. Nitric Acid Service & Acid Evaporators

• Hastelloy G-30 for nitric acid service – tail gas heaters, ammonia burner tubes, and concentrated nitric acid piping. Nitric acid resistant alloy handles both dilute and fuming HNO₃ up to 110°C.

• Hastelloy G-30 for acid evaporators – falling film evaporators and forced circulation heaters for phosphoric and nitric acid concentration. Oxidizing acid resistant material prevents rapid thinning.

3. Chemical Processing Equipment & Heat Exchangers

• Hastelloy G-30 for chemical processing equipment – reactor vessels, distillation columns, and agitator blades for processes involving mixed acids (HNO₃ + HCl, H₃PO₄ + H₂SO₄). Sulfuric acid resistant nickel alloy with good chloride tolerance.

• Hastelloy G-30 for heat exchangers – shell‑and‑tube exchangers for acid coolers, reboilers, and condensers in aggressive chemical service. Pitting resistant alloy prevents localized attack.

4. Reactor Vessels & Pickling Equipment

• Hastelloy G-30 for reactor vessels – batch reactors for specialty chemicals, agrochemical intermediates, and metal finishing processes. Chloride resistant nickel alloy performs well in mixed acid pickling baths.

• Hastelloy G-30 for pickling equipment – pickling tank liners and heating coils for stainless steel pickling (nitric‑hydrofluoric acid mixtures). Advanced chemical process alloy withstands aggressive HF and HNO₃.

5. Industrial Corrosion Service & High Temperature Acid Applications

• Hastelloy G-30 for sulfuric acid systems – piping and vessels for dilute and intermediate H₂SO₄ service (up to 60%) at elevated temperatures. Crevice corrosion resistant alloy under gaskets and flanges.

• Hastelloy G-30 for fertilizer industry corrosion control – also used in phosphate rock slurry lines, gypsum pond return lines, and downstream fertilizer granulation equipment.

Why Choose Us as Your Hastelloy G-30 Nickel Alloy Supplier?

We are a reliable Hastelloy G-30 supplier, Hastelloy G-30 manufacturer, Alloy G-30 stockist, UNS N06030 supplier, phosphoric acid resistant alloy specialist, nitric acid resistant nickel alloy provider, fertilizer industry alloy expert, chemical process alloy supplier, corrosion resistant nickel alloy manufacturer, Hastelloy G-30 material supplier, industrial nickel alloy manufacturer, and China Hastelloy G-30 factory. All products meet ASTM B582 / B619 / B622 / B581 with mill test certificates, chemical analysis, mechanical property reports, and NDT as required.

What we offer:

• Complete product forms: Plate, Sheet, Pipe, Tube, Bar, Forging

• Plate thickness: 3mm – 50mm (standard and custom)

• Pipe sizes: 1/2″ to 12″ NPS, SCH40, SCH80

• Bar diameters: 6mm – 200mm; forged bar for large cross‑sections

• Condition: Solution annealed to ensure maximum corrosion resistance

• Surface finishes: pickled, polished, as‑rolled

• Services: cut to size, precision machining, custom fabrication, forging supply

• Certifications: EN 10204 3.1, PMI, full traceability

• Global shipping: Exporter to phosphoric acid plants, fertilizer facilities, and chemical processors worldwide

Contact us for Hastelloy G-30 Size Chart, Thickness Chart, Weight Chart, or a quote on Hastelloy G-30 Pipe SCH40/SCH80, Plate 6mm/12mm, Sheet 4x8, Round Bar 50mm, or custom requirements.

MONO Group is one of Hastelloy G-30 Nickel Alloy and other Superalloy, Nickel alloy, High Temperature Alloy Manufacturer, Supplier, Wholesaler from China, We can supply high quality alloy plate, sheet, round bar, tube, pipes, fittings, flange, and custom parts in accordance with ASTM, ASME, DIN, ISO, GB and other international standards. For inquiries or to request a quote, please freely contact us at info@monokj.com.