Materials for Fertilizer: Pipes, Plates & Alloys

Materials for Fertilizer

Fertiliser plants (ammonia, urea, nitric acid, phosphoric acid and complex fertilisers) combine high-pressure synthesis, hot ammonia and corrosive acids. Materials include Alloy 800H/HT and Cr-Mo steels in ammonia reformers, low-temperature carbon steel, stainless steels in urea and nitric acid service, and SS 904L and 825 in phosphoric acid.

Key materials

Product forms

Markets

Standards

On this page 10 sections

Quick answer
Challenges
Materials
Popular products
Standards
Applications
Markets
Procurement
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FAQs

Which materials are used in fertilizer?

Quick answer

Incoloy 800HT for reformer outlet systems; P22 Alloy Steel (2¼% chromium-1% molybdenum) for synthesis-loop equipment; SS 304L Stainless Steel for nitric acid plants; SS 316L Stainless Steel for urea and process piping; SS 904L Stainless Steel for phosphoric acid.

What are the material challenges in fertilizer?

Hydrogen and nitriding in ammonia synthesis

Carbamate corrosion in urea plants

Phosphoric and sulphuric acid corrosion

Low-temperature ammonia storage

Materials we supply for this industry

The key materials for fertilizer and the duty each one covers.

Key materials for Fertilizer
Material	Typical use	Grade family
Incoloy 800HT	Reformer outlet systems	Nickel Alloys
P22 Alloy Steel (2¼% chromium-1% molybdenum)	Synthesis-loop equipment	Alloy Steel
SS 304L Stainless Steel	Nitric acid plants	Stainless Steel
SS 316L Stainless Steel	Urea and process piping	Stainless Steel
SS 904L Stainless Steel	Phosphoric acid	Stainless Steel
ASTM A333 Grade 6	Ammonia refrigeration and storage	Carbon Steel

Which standards apply?

Related applications

Fertilizer markets we supply

Saudi ArabiaJubail Industrial City (petrochemicals, refining)QatarRas Laffan Industrial City (LNG, GTL)IndiaGujarat (Jamnagar, Dahej, Hazira, Vadodara)

Procurement considerations

Specify grade, specification and edition
Define tests and certificates (EN 10204 3.1 / 3.2)
Include third-party inspection and PMI where required
Confirm marking, packing and destination documentation

We support fertilizer buyers with documentation and inspection and value-added services.

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Guides

Related industries

Applications

Frequently asked questions

Which stainless steel is used in urea plants?

Special urea-grade austenitic and duplex steels are used in synthesis sections. SS 316L is used in many auxiliary lines. Urea-grade materials have extra chemistry and testing requirements, so specify them explicitly.

Which product forms do you supply for fertilizer?

Pipes, Tubes, Plates, Fittings, Flanges, in the grades listed above, from stock or mill-sourced with EN 10204 certificates.

Which standards apply to fertilizer materials?

Commonly ASTM A312, ASTM A333, ASTM A387, plus project and code requirements.

Do you supply fertilizer projects outside India?

Yes, including Saudi Arabia, Qatar, India.