HASTELLOY alloy B-2 (UNS N10665) is a nickel-molybdenum alloy known for its excellent resistance to reducing acids such as hydrochloric acid, sulfuric acid, and phosphoric acid. It offers robust mechanical properties and reliability across a wide range of temperatures, making it suitable for various demanding applications in corrosive environments.
화학적 구성 요소
요소
구성 (%)
니켈(Ni)
65.0 min
몰리브덴(Mo)
26.0 – 30.0
철(Fe)
최대 2.0
크롬(Cr)
최대 1.0
코발트(Co)
최대 1.0
망간(Mn)
최대 1.0
실리콘(Si)
0최대 0.10
탄소(C)
00.02 최대
인(P)
0.040 최대
유황(S)
0.030 최대
기계적 성질
재산
값
인장 강도, ksi(MPa)
110(760)분
항복 강도(0.2% 오프셋), ksi(MPa)
51 (350) min
신율(2인치 단위의 %)
40분
경도, 로크웰 B(HRB)
88 max
다양한 온도에서의 성능
HASTELLOY B-2 demonstrates reliable performance across various temperature ranges:
실온:Offers outstanding resistance to reducing acids, ensuring longevity in chemical processing equipment.
Elevated Temperatures (up to 1000°F / 538°C):Maintains high strength and corrosion resistance in challenging industrial environments.
저온:Retains ductility and toughness even at cryogenic temperatures, suitable for applications requiring resilience in extreme conditions.
산업 응용
HASTELLOY alloy B-2 finds widespread use in several key industries:
산업 분야
애플리케이션
화학 처리
Reactor vessels, heat exchangers, and piping systems handling aggressive acids like sulfuric, hydrochloric, and phosphoric acids.
석유화학
Equipment for processing acids and chemicals in refineries and chemical plants.
제약
Pharmaceutical processing equipment requiring corrosion resistance to acids.
Pulp and Paper
Digesters, bleach plants, and equipment for corrosive chemical environments in paper production.
모양, 크기 및 생산 표준
제품 형태
사용 가능한 모양
사용 가능한 크기
생산 표준
시트
플레이트, 시트
Thickness: 0.025″ – 4.000″ (0.64mm – 101.6mm)
ASTM B333
바
둥근 막대, 육각형 막대
Diameter: 0.25″ – 4.0″ (6.35mm – 101.6mm)
ASTM B335
튜브/파이프
심리스 튜브, 용접 파이프
OD: 0.5″ – 8.0″ (12.7mm – 203.2mm)
ASTM B619, ASTM B622
표준 및 해당 등급
국가/지역
표준/등급
미국
미국 N10665
유럽
2.4617
독일
NiMo28
프랑스
NiMo28
용접, 가공, 연마, 열처리
프로세스
세부
용접
Excellent weldability using TIG, MIG methods, suitable for joining components in corrosive environments without compromising integrity.
처리
Machinable using conventional methods, offers flexibility in fabrication processes to meet specific design requirements.
세련
Capable of achieving smooth finishes for enhanced corrosion resistance, critical in applications requiring sanitary conditions.
열처리
Solution annealing at 1950°F (1065°C) followed by rapid quenching ensures optimal material properties and performance under stress.
냉간 가공, 장점 및 단점
측면
세부
냉간 가공
Retains ductility and formability at room temperature, facilitating shaping and forming processes in manufacturing.
장점
Exceptional resistance to reducing acids, high mechanical strength, and reliability in aggressive chemical environments.
단점
Higher initial cost compared to conventional stainless steels, limited availability in certain shapes and sizes may require custom fabrication solutions.
유사한 제품
상품명
비교
HASTELLOY Alloy C-276 (UNS N10276)
Higher molybdenum content, broader corrosion resistance in severe environments, suitable for a wider range of chemicals.
HASTELLOY Alloy B-3 (UNS N10675)
Enhanced thermal stability, superior resistance to hydrochloric acid and other strong acids, ideal for applications requiring extended service life in aggressive chemical environments.
유사 제품 비교
속성/특징
HASTELLOY Alloy B-2 (UNS N10665)
HASTELLOY Alloy C-276 (UNS N10276)
HASTELLOY Alloy B-3 (UNS N10675)
니켈 함량(%)
65.0 min
57.0
65.0
몰리브덴 함량(%)
26.0 – 30.0
16.0
28.0
크롬 함량(%)
최대 1.0
16.0
1.5
인장 강도(ksi)
110분
100 min
110분
항복강도(ksi)
51 min
40분
40분
부식 저항
Excellent in reducing environments, withstands sulfuric, hydrochloric, and phosphoric acids.
Wide range of corrosive environments, excellent resistance to oxidizing and reducing acids.
Exceptional resistance to strong acids including hydrochloric acid, sulfuric acid, and other harsh chemicals.
This article provides a comprehensive overview of HASTELLOY alloy B-2 (UNS N10665), highlighting 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. Each section is presented in a structured table format to ensure clarity and accessibility of technical information, catering to engineers, manufacturers, and professionals in the chemical and industrial sectors.
