ASTM B575 Alloy C22 Plate & Sheet for Mixed Corrosion | N06022

Shaanxi Shangyou Stainless Steel Co., Ltd. supplies astm b575 alloy c22 plate & sheet for mixed corrosion | n06022 for buyers whose primary search intent is chemical-process flat product for oxidizing and reducing media, not generic stainless or nickel-alloy stock. The page should be quoted against the selected standard edition, the equipment or component drawing and the governing design code. Low-carbon nickel-chromium-molybdenum-tungsten Alloy C22 flat product to ASTM B575 for severe chemical-process corrosion service.

The material decision should start with service conditions. High chromium with molybdenum and tungsten gives a broad resistance window across oxidizing and reducing conditions, including strong localized-corrosion resistance. Compare with C276: C22 generally offers higher chromium and a different oxidizing/reducing balance; final selection requires media-specific corrosion data. This comparison belongs in the enquiry stage because a higher alloy name does not automatically deliver the lowest life-cycle risk.

A complete RFQ needs product form, grade/UNS, ordered condition, dimensional basis, tolerances, quantity and inspection level. State thickness, width, length, edge, flatness, surface class and any UT or corrosion-test requirement. Cut sizes require full heat traceability. For pressure-containing products, the material standard controls product quality; it does not replace pressure-design calculations, corrosion allowance or code approval.

Manufacturing and documentation must remain connected. Rolling, solution annealing, descaling, leveling and cutting. Prevent iron contamination during handling and fabrication. The baseline verification plan is: MTC, chemistry/mechanical tests, PMI, dimensions/flatness, optional UT/PT and project corrosion tests where the service justifies them. Any supplementary requirement—PMI extent, UT class, eddy-current acceptance, corrosion testing, grain size, roughness, cleanliness or third-party inspection—must appear in the PO before production.

Fabrication guidance: Use matching or approved over-alloyed filler, low heat input and meticulous joint cleaning. Remove iron contamination and heat tint from wetted surfaces. Selection boundary: No nickel alloy is universal. Ask for concentration, contaminants, aeration, temperature and crevice geometry before promising suitability. Buyers should provide fluid composition, maximum and minimum temperature, pressure, design life, fabrication route and applicable code so the quotation can separate mandatory requirements from optional controls.

Standards, Dimensions and Supply Definition

Material and Selection Markers

Use note: Values above are concise identification/selection markers, not a replacement for the ordered ASTM/AWS chemistry table or the MTC.

Candidate Applications

• Reactor and vessel linings.
• Chlorination systems.
• Wet scrubbers.
• Pulp and paper bleaching equipment.

Buyer Decision Boundary

Compare with C276: C22 generally offers higher chromium and a different oxidizing/reducing balance; final selection requires media-specific corrosion data.

Processing, Inspection and Documentation

• Manufacturing: Rolling, solution annealing, descaling, leveling and cutting. Prevent iron contamination during handling and fabrication.
• Fabrication: Use matching or approved over-alloyed filler, low heat input and meticulous joint cleaning. Remove iron contamination and heat tint from wetted surfaces.
• Inspection: MTC, chemistry/mechanical tests, PMI, dimensions/flatness, optional UT/PT and project corrosion tests where the service justifies them.
• Traceability: Keep heat/lot identity through cutting, machining, bending, welding, testing and packing.
• Documentation: Confirm MTC type, test reports, packing list, country-of-origin statement and third-party inspection before production.

RFQ Checklist

• Standard and adopted edition: ASTM B575
• Grade / UNS: Alloy C22 / N06022
• Form and route: Plate, sheet and strip
• Dimensions, tolerances, quantity and unit basis
• Delivery/heat-treatment condition and surface/end finish
• Design code, service fluid/atmosphere, pressure and temperature
• Inspection/NDE, acceptance criteria, MTC and third-party witness points
• Marking, preservation, packing and delivery destination

Inquiry CTA

Frequently Asked Questions

1. What does ASTM B575 cover for this product? Low-carbon nickel-chromium-molybdenum-tungsten Alloy C22 flat product to ASTM B575 for severe chemical-process corrosion service. Always purchase to the edition adopted by the contract or project specification.
2. Is this product seamless, welded, forged, rolled or drawn? The PO must state the required route exactly: Plate, sheet and strip. Do not rely on a product photograph or a family name to establish the route.
3. How should buyers select Alloy C22? High chromium with molybdenum and tungsten gives a broad resistance window across oxidizing and reducing conditions, including strong localized-corrosion resistance. Compare with C276: C22 generally offers higher chromium and a different oxidizing/reducing balance; final selection requires media-specific corrosion data.
4. Which dimensions must be included in the RFQ? State thickness, width, length, edge, flatness, surface class and any UT or corrosion-test requirement. Cut sizes require full heat traceability. Add quantity, unit basis, tolerances and any drawing-controlled geometry.
5. What heat-treatment or delivery condition is required? Solution annealed and descaled unless a project-specific finish is ordered. The MTC and heat-treatment records should use the same grade and condition language as the PO.
6. Which inspection documents can be requested? MTC, chemistry/mechanical tests, PMI, dimensions/flatness, optional UT/PT and project corrosion tests where the service justifies them. The final inspection scope must be agreed before order placement.
7. Is it suitable for the intended corrosive or high-temperature service? No nickel alloy is universal. Ask for concentration, contaminants, aeration, temperature and crevice geometry before promising suitability. A material engineer should approve the final choice using actual service data.
8. What fabrication issues should be addressed? Use matching or approved over-alloyed filler, low heat input and meticulous joint cleaning. Remove iron contamination and heat tint from wetted surfaces. Use a qualified procedure and preserve heat/lot traceability after cutting or fabrication.
9. What are typical applications? Common candidate applications include reactor and vessel linings, chlorination systems, wet scrubbers, pulp and paper bleaching equipment. These examples are not blanket design approvals.
10. What information is needed for a firm quotation? Send standard and edition, grade/UNS, form, dimensions, condition, quantity, delivery destination, inspection/NDE, documentation, packing and any third-party inspection or code requirement.