HASTELLOY® 합금 C-22

HASTELLOY-Alloy-C-22

HASTELLOY Alloy C-22 (UNS N06022) Product Introduction

HASTELLOY alloy C-22 (UNS N06022) is a versatile nickel-chromium-molybdenum-tungsten alloy renowned for its exceptional resistance to a wide range of aggressive chemicals. This article provides a detailed and rich introduction to HASTELLOY C-22, covering its chemical composition, mechanical properties, performance characteristics at different temperatures, industry applications, available shapes and sizes, production standards, welding and processing capabilities, as well as advantages, disadvantages, and comparisons with similar products.

화학적 구성 요소

요소구성 (%)
니켈(Ni)56.0 min
크롬(Cr)20.0 – 22.5
몰리브덴(Mo)12.5 – 14.5
철(Fe)2.0 – 6.0
텅스텐(W)2.5 – 3.5
코발트(Co)최대 2.5
망간(Mn)0최대 0.50
바나듐(V)0최대 0.35
실리콘(Si)00.08 최대
탄소(C)0.010 최대
인(P)0.020 max
유황(S)0.020 max

기계적 성질

재산
인장 강도, ksi(MPa)115 (790) min
항복 강도(0.2% 오프셋), ksi(MPa)55 (380) min
신율(2인치 단위의 %)45 min
경도, 로크웰 C(HRC)89 max

다양한 온도에서의 성능

HASTELLOY C-22 exhibits excellent performance across varying temperature ranges:

  • 실온: Superior resistance to oxidizing and reducing acids, including sulfuric acid, hydrochloric acid, and acetic acid.
  • Elevated Temperatures (up to 1250°F / 677°C): Maintains high strength and corrosion resistance in aggressive chemical environments.
  • 저온: Retains ductility and toughness down to cryogenic temperatures, suitable for applications requiring reliability in extreme conditions.

산업 응용

HASTELLOY alloy C-22 is widely used in several industries due to its exceptional corrosion resistance:

산업 분야애플리케이션
화학 처리Reactors, vessels, and piping systems handling corrosive chemicals such as acids and chlorides.
석유화학Equipment for sulfuric acid regeneration, flue gas desulfurization systems, and chemical processing units.
제약공격적인 화학물질에 대한 내성이 요구되는 제약 처리 장비.
Pulp and PaperDigesters, bleach plants, and other components exposed to corrosive environments in paper production.

모양, 크기 및 생산 표준

제품 형태사용 가능한 모양사용 가능한 크기생산 표준
시트/플레이트플레이트, 시트두께: 0.025″ – 1.000″ (0.64mm – 25.4mm)ASTM B575
둥근 막대, 육각형 막대직경: 0.25″ – 6.0″ (6.35mm – 152.4mm)ASTM B574
튜브/파이프심리스 튜브, 용접 파이프외경: 0.5″ – 6.0″ (12.7mm – 152.4mm)ASTM B619, ASTM B622

표준 및 해당 등급

국가/지역표준/등급
미국UNS N06022
유럽2.4602
독일NiCr21Mo14W
프랑스NC22DNb

용접, 가공, 연마, 열처리

프로세스세부
용접TIG, MIG 방법을 사용하여 용접성이 뛰어나 부식 환경에서도 강력하고 안정적인 접합을 보장합니다.
처리기존 방법을 사용하여 가공이 가능하며 제조 공정에 유연성을 제공합니다.
세련향상된 내식성과 미적 매력을 위해 매끄러운 마감을 달성할 수 있습니다.
열처리Solution annealing at 2050°F (1121°C) followed by rapid quenching optimizes material properties and performance.

냉간 가공, 장점 및 단점

측면세부
냉간 가공실온에서 연성 및 성형성을 유지하여 성형 및 제조를 용이하게 합니다.
장점광범위한 부식성 화학물질에 대한 뛰어난 저항성, 높은 기계적 강도, 열악한 환경에서의 신뢰성.
단점Higher initial cost compared to conventional stainless steels, potential limitations in availability of specific shapes and sizes.

유사한 제품

상품명비교
HASTELLOY C-276 (UNS N10276)Higher nickel content, broader resistance to oxidizing and reducing environments, suitable for more severe corrosive conditions.
HASTELLOY C-4 (UNS N06455)Enhanced thermal stability, superior resistance to hot contaminated mineral acids, excellent performance in high-temperature applications.

유사 제품 비교

속성/특징하스텔로이 C-22Hastelloy C-276Hastelloy C-4
니켈 함량(%)56.057.065.0
몰리브덴 함량(%)12.5 – 14.516.016.0
크롬 함량(%)20.0 – 22.516.016.0
인장 강도(ksi)115분100 min100 min
항복강도(ksi)55분40분40분
부식 저항황산, 염산, 아세트산 등 산의 산화환원성이 뛰어납니다.Wide range of corrosive environments, including strong oxidizers and reducing agents.Superior resistance to hot contaminated mineral acids and high-temperature applications.

This article provides an in-depth introduction to HASTELLOY alloy C-22 (UNS N06022), encompassing its chemical composition, mechanical properties, performance in various environments, industry applications, available forms and sizes, production standards, welding and processing capabilities, as well as advantages, disadvantages, and comparisons with similar alloys. The structured format using tables ensures clarity and accessibility of technical information, catering to engineers, manufacturers, and professionals seeking corrosion-resistant materials for demanding applications.