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Corrosion-aware process supply
Chemical & Petrochemical
Chemical and petrochemical systems can expose materials to acids, chlorides, solvents, oxidising media and cyclic operating conditions. NESCO supplies specified products after review of the customer-approved material and service requirements.
/ 01 — PIPING APPLICATIONS
Where the products are used.
Typical application areas are shown for enquiry planning. The approved design and project specification govern actual use.
Reactors and vessel connections
Heat exchangers
Storage and loading systems
Utility and effluent piping
Maintenance replacement packages
/ 02 — MATERIAL REQUIREMENTS
Define the service before the grade.
Process compatibility
The process licensor or materials engineer should approve the grade against concentration, contaminants and temperature.
Fabrication route
Welding procedure, heat treatment, pickling and passivation can influence the finished system.
Cleanliness
Surface finish, end protection and packing should reflect the process and contamination risk.
Documentation
MTC type, PMI, corrosion testing and inspection hold points should be defined in the purchase specification.
/ 03 — SUITABLE GRADES & PRODUCTS
A practical supply starting point.
These are commonly considered options, not a material-selection approval. Availability is confirmed against the complete specification.
Material families and gradesStainless Steel 316 / 316LStainless Steel 317LStainless Steel 904LAlloy 20 (UNS N08020)Hastelloy® C22 (UNS N06022)Hastelloy® C276 (UNS N10276)SMO® 254 (UNS S31254)
/ 04 — TECHNICAL CONSIDERATIONS
Questions to resolve before purchase.
- 01
Do not select a grade from alloy name alone; review the complete process environment.
- 02
Specify whether intergranular, pitting or other supplementary corrosion testing is required.
- 03
Confirm allowable iron contamination and surface-finish requirements.
- 04
Align the product standard and fabrication condition with the approved equipment or piping specification.
/ RELATED KNOWLEDGE
Continue the technical review.
/ TECHNICAL FAQS
Common buyer questions.
Is 316L suitable for every chemical service?+
No. 316L is widely used, but suitability depends on the chemical, concentration, temperature, contaminants, flow and fabrication condition.
Can higher alloys be supplied as a mixed product package?+
Subject to availability, NESCO can coordinate pipes, tubes, flat products, flanges, fittings and bars against one reviewed BOQ.
What information helps prevent a material mismatch?+
State the exact UNS or grade, product standard, dimensions, condition, testing, surface requirements and intended service in the purchase specification.
/ REQUEST A REVIEWED QUOTATION
Request a quote Send the complete specification.
Upload your BOQ, material take-off or purchase specification. Our team will review grade, product form, dimensions, documentation and delivery requirements.