Nickel Alloys for Caustic Soda and Alkali Service
Select nickel alloys for caustic soda and alkali service. Compare Nickel 200, Nickel 201, Monel 400, Inconel 600, product forms, temperature limits and RFQ details.
Send RFQCaustic material selection depends on concentration, temperature, contaminants, oxidizing species, flow condition, weld fabrication, carbon limits, required product form and final project specification.
Recommended Alloys
| Alloy | Common Service | Why It Is Considered | Product Page |
|---|---|---|---|
| Nickel 200 | Caustic soda, alkali and conductive components below about 315°C | Commercially pure nickel with strong caustic alkali resistance | View product |
| Nickel 201 | Higher-temperature caustic and low-carbon pure nickel service | Low-carbon grade selected to reduce graphitization risk | View product |
| Monel 400 | Alkali, seawater and hydrofluoric acid related service | Nickel-copper alloy used where pure nickel is not the only candidate | View product |
| Inconel 600 | Caustic plus heat or selected high-temperature corrosion | Nickel-chromium alloy considered for heat and corrosion combinations | View product |
| Incoloy 825 | Mixed acid/alkali chemical process environments | Nickel-iron-chromium-molybdenum-copper alloy for broader chemical service | View product |
Selection Guide
| If Your Project Needs | Start With | RFQ Notes |
|---|---|---|
| Pure caustic soda below about 315°C | Start with Nickel 200 | Confirm concentration, temperature, impurities and product form. |
| Higher-temperature pure nickel service | Start with Nickel 201 | Use the low-carbon option where carbon limits matter. |
| Caustic plus seawater or mixed media | Review Monel 400, Inconel 600 or other nickel alloys | Provide full chemistry rather than only the main chemical name. |
| Fabricated tanks, sheets or strips | Compare Nickel 200 and Nickel 201 product availability | Specify weld requirements, thickness, condition and inspection. |
Common Product Forms
| Product Form | Typical Materials | Related Landing Page |
|---|---|---|
| Plate / Sheet | Nickel 200, Nickel 201, Monel 400 | Nickel 200 plate supplier |
| Strip / Coil | Nickel 201, Nickel 200 | Nickel 201 strip supplier |
| Pipe / Tube | Nickel 200/201, Monel 400, Inconel 600 | Related page |
Standards and Inspection Notes
Standards
Confirm ASTM, ASME, AMS, NACE, EN or project-specific standards before quotation. Material availability and inspection scope depend on the requested product form and condition.
Service Conditions
Include medium, concentration, chloride level, pH, temperature, pressure, flow condition and whether crevice corrosion, welding or stress is expected.
Inspection
Available quotation options may include EN 10204 3.1 MTC, PMI, dimensional inspection, mechanical tests, UT or third-party inspection depending on product form.
Application FAQ
Is Nickel 200 good for caustic soda?
Nickel 200 is commonly used for caustic soda and alkali service below about 315°C, but the final choice depends on concentration, temperature, contaminants, fabrication and project specification.
When should I choose Nickel 201 instead of Nickel 200?
Nickel 201 is the low-carbon commercially pure nickel grade and is often selected for higher-temperature service where carbon-related graphitization risk must be reduced.
What details are needed for a caustic soda alloy RFQ?
Send caustic concentration, temperature, contaminants, product form, size, standard, quantity, condition, inspection requirement and whether the part will be welded or formed.
Related Material Links
Request an Application-Based Alloy Quote
Send us the service medium, concentration, temperature, pressure, alloy grade if known, product form, size, quantity, material condition, applicable standard, inspection requirement and destination country.
- Material need: application, medium and target alloy family
- Product form: pipe, tube, plate, sheet, bar, wire, flange, fitting or forging
- Inspection: MTC, PMI, UT, mechanical tests or third-party inspection
- Delivery: destination country, quantity and required lead time