HASTELLOY B-3 (UNS N10675) is a nickel-molybdenum alloy renowned for its exceptional resistance to a wide range of aggressive chemicals, including hydrochloric acid, sulfuric acid, and other strong reducing agents. This article provides a comprehensive introduction to HASTELLOY B-3, 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
요소
구성 (%)
니켈(Ni)
65.0 min
몰리브덴(Mo)
28.0 – 32.0
철(Fe)
최대 1.0
크롬(Cr)
1.5 max
코발트(Co)
최대 2.5
망간(Mn)
최대 1.0
실리콘(Si)
0최대 0.10
탄소(C)
0최대 0.01
인(P)
0.015 최대
유황(S)
0.010 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)
94 max
다양한 온도에서의 성능
HASTELLOY B-3 demonstrates excellent performance across various temperature ranges:
실온:Superior resistance to reducing acids like hydrochloric, sulfuric, and phosphoric acids, making it ideal for chemical processing equipment.
Elevated Temperatures (up to 1000°F / 538°C):Maintains high strength and corrosion resistance in aggressive industrial environments.
저온:Retains ductility and toughness down to cryogenic temperatures, suitable for applications requiring reliability in extreme conditions.
산업 응용
HASTELLOY B-3 is widely used in several critical industries:
산업 분야
애플리케이션
화학 처리
Reactor vessels, heat exchangers, and piping systems handling corrosive acids and chemicals.
석유화학
Equipment for processing sulfuric acid, acetic acid, and other aggressive chemicals in refineries.
제약
Pharmaceutical processing equipment requiring corrosion resistance to acids and harsh environments.
Pulp and Paper
Bleach plant equipment, digesters, and other components exposed to corrosive chemicals 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
UNS N10675
유럽
2.4600
독일
NiMo29
프랑스
NiMo29
용접, 가공, 연마, 열처리
프로세스
세부
용접
TIG, MIG 방법을 사용하여 용접성이 뛰어나 부식 환경에서도 강력하고 안정적인 접합을 보장합니다.
처리
기존 방법을 사용하여 가공이 가능하며 제조 공정에 유연성을 제공합니다.
세련
향상된 내식성과 미적 매력을 위해 매끄러운 마감을 달성할 수 있습니다.
열처리
Solution annealing at 1950°F (1065°C) followed by rapid quenching optimizes material properties and performance.
냉간 가공, 장점 및 단점
측면
세부
냉간 가공
실온에서 연성 및 성형성을 유지하여 성형 및 제조를 용이하게 합니다.
장점
Exceptional resistance to a broad range of corrosive chemicals, high mechanical strength, and reliability in harsh environments.
단점
Higher initial cost compared to conventional stainless steels, potential limitations in availability of specific shapes and sizes.
유사한 제품
상품명
비교
Hastelloy C-276 (UNS N10276)
Higher nickel and molybdenum content, broader resistance to oxidizing and reducing environments.
Hastelloy B (UNS N10001)
Similar nickel content, lower molybdenum content, suitable for less severe corrosive conditions.
유사 제품 비교
속성/특징
Hastelloy B-3
Hastelloy C-276
Hastelloy B
니켈 함량(%)
65.0
57.0
65.0
몰리브덴 함량(%)
28.0 – 32.0
16.0
1.0
크롬 함량(%)
1.5
16.0
1.0
인장 강도(ksi)
110분
100 min
110분
항복강도(ksi)
51 min
40분
51 min
부식 저항
Excellent in reducing acids like hydrochloric and sulfuric acid, high resistance to pitting and stress corrosion cracking.
Wide range of corrosive environments, including strong oxidizers and reducing agents.
Good resistance to reducing acids, moderate resistance to oxidizing environments.
This article serves as a detailed introduction to HASTELLOY B-3 (UNS N10675), highlighting 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 presentation using tables ensures clarity and accessibility of technical information, catering to engineers, manufacturers, and professionals seeking corrosion-resistant materials for demanding applications.
