Introduction

ASTM B575 Nickel Alloy Plate covers low-carbon nickel-chromium-molybdenum alloys for severe corrosive service, including Hastelloy C276 (UNS N10276) , C22 (UNS N06022) , C2000 (UNS N06200) , B2 (UNS N10665) , B3 (UNS N10675) , and G30 (UNS N06030) , in solution-annealed condition. Hastelloy C276 plate resists chlorides, wet chlorine, and mixed acids. C22 plate offers superior pitting resistance in oxidizing media. C2000 plate excels in sulfuric acid service. B2/B3 plates are designed for hydrochloric acid processing. G30 plate resists phosphoric and sulfuric acids in fertilizer production. Available in hot-rolled and cold-rolled forms, custom thickness, and cut-to-size options.

Specifications & Process Options

Applications

1. Chemical Processing & Reactor Systems

• For reactors, heat exchangers, and pressure vessels in chloride and acid service – Hastelloy C276 reactor sections deliver benchmark resistance to pitting and crevice corrosion in wet chlorine, strong acids, and mixed oxidizing/reducing conditions. Widely used in chemical processing equipment, pollution control stack liners, ductwork, and scrubbers.

• In chemical process industry applications handling oxidizing media – Hastelloy C22 heat exchanger components provide outstanding resistance to chloride-induced pitting and stress corrosion cracking, with high chromium content offering superior performance in hot contaminated solutions, formic and acetic acids.

• For sulfuric acid service across 0–60 wt.% concentrations – Hastelloy C2000 sulfuric acid sections perform up to an order of magnitude better than C276, with copper addition enhancing resistance to hot reducing sulfuric acid while maintaining oxidizing media resistance for process streams with ferric ions.

• In hydrochloric acid production and non-oxidizing acid environments – Hastelloy B2 HCl processing sections and Hastelloy B3 evaporator components provide unique defense across all concentrations and temperatures. B3 extends performance to sulfuric and phosphoric acids with improved thermal stability.

• For phosphoric acid production, fertilizer manufacturing, and petrochemical plants – Hastelloy G30 phosphoric acid components resist "wet process" phosphoric acid (P₂O₅), sulfuric acid, and nitric acid, with resistance to grain boundary precipitates in weld heat-affected zones.

2. Pressure Vessels & Heat Exchangers

• For ASME-coded pressure vessels in high-temperature corrosive service – ASTM B575 pressure vessel sections combine strength, corrosion resistance, and weldability. Hastelloy C276 vessel components are used in reactors, evaporators, and toxic chemical storage tanks.

• For heat exchanger tube sheets, baffles, and channel covers – Hastelloy C22 heat exchanger components provide broad corrosion resistance with outstanding resistance to localized attack in chloride-containing process streams.

3. Pollution Control & FGD Systems

• In flue gas desulfurization scrubbers and stack-gas reheaters – Hastelloy C276 FGD components withstand low-pH, chloride-rich absorber tower environments. Hastelloy C22 absorber sections are widely used for exceptional pitting and crevice corrosion resistance in wet and corrosive zones.

4. Marine & Pulp and Paper

• In marine engineering and seawater systems – Hastelloy C276 marine components resist chloride-induced pitting and crevice corrosion on offshore platforms.

• In pulp and paper digesters and bleach plants – Hastelloy C276 bleaching sections resist aggressive chemicals in chlorine injection and bleaching processes.

FAQ – ASTM B575 Nickel Alloy Plate

Q: What is the difference between C276, C22, and C2000 plates?
A: C276 plate is the broad-spectrum workhorse for mixed acid and chlorinated chemical processing. C22 plate offers enhanced oxidizing media resistance and superior pitting/crevice corrosion resistance, preferred for FGD and brine environments. C2000 plate features copper addition for exceptional sulfuric acid resistance, performing up to an order of magnitude better than C276 in hot reducing sulfuric acid.

Q: When should I choose B2 over B3 for hydrochloric acid service?
A: B2 plate provides excellent HCl resistance at all concentrations and temperatures. B3 plate offers improved thermal stability and better resistance to heat-affected zone attack, with broader resistance to sulfuric and phosphoric acids.

Q: What industries use ASTM B575 plate?
A: Chemical/petrochemical processing (reactors, heat exchangers, pressure vessels), pollution control and FGD, marine engineering, pulp and paper, pharmaceutical equipment, fertilizer production, and oil and gas.

Q: Can ASTM B575 plate be welded without post-weld heat treatment?
A: Yes. C276 plate and C22 plate resist grain boundary precipitates in the weld heat-affected zone, suitable for as-welded service. All plates are supplied solution annealed.

We are a trusted ASTM B575 Nickel Alloy Plate Manufacturer and Hastelloy Plate Supplier, China-based, serving chemical processors, pressure vessel fabricators, and heat exchanger manufacturers worldwide. All products comply with ASTM B575 / ASME SB575 with EN 10204 3.1 mill certificates, PMI verification, and dimensional inspection reports. We offer hot-rolled and cold-rolled plate in custom thickness from 0.5mm to 100mm, with cut-to-size and precision machining services. Contact us at info@monokj.com for size chart, pricing, or custom requirements.