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.
化学組成
要素
構成 （％）
ニッケル(Ni)
65.0 min
モリブデン(Mo)
26.0 – 30.0
鉄(Fe)
最大2.0
クロム(Cr)
最大1.0
コバルト(Co)
最大1.0
マンガン(Mn)
最大1.0
シリコン（Si）
0最大.10
カーボン(C)
0最大.02
リン(P)
0最大.040
硫黄(S)
0最大.030
機械的性質
財産
価値
引張強さ、ksi (MPa)
110(760)分
降伏強さ (0.2% オフセット)、ksi (MPa)
51 (350) min
伸び (% 単位 2 インチ)
40分
硬度、ロックウェル B (HRB)
88 max
さまざまな温度でのパフォーマンス
HASTELLOY B-2 demonstrates reliable performance across various temperature ranges:
室温：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.
低温:Retains ductility and toughness even at cryogenic temperatures, suitable for applications requiring resilience in extreme conditions.
産業用途
HASTELLOY alloy B-2 finds widespread use in several key industries:
産業部門
アプリケーション
化学処理
Reactor vessels, heat exchangers, and piping systems handling aggressive acids like sulfuric, hydrochloric, and phosphoric acids.
石油化学
Equipment for processing acids and chemicals in refineries and chemical plants.
医薬品
Pharmaceutical processing equipment requiring corrosion resistance to acids.
紙パルプ
Digesters, bleach plants, and equipment for corrosive chemical environments in paper production.
形状・サイズ・製造規格
製品形態
利用可能な形状
利用可能なサイズ
製造基準
シート
プレート、シート
Thickness: 0.025″ – 4.000″ (0.64mm – 101.6mm)
ASTM B333
バー
丸棒、六角棒
Diameter: 0.25″ – 4.0″ (6.35mm – 101.6mm)
ASTM B335
チューブ/パイプ
継目無管、溶接管
OD: 0.5″ – 8.0″ (12.7mm – 203.2mm)
ASTM B619, ASTM B622
規格と対応グレード
国/地域
標準/グレード
アメリカ合衆国
UNS N10665
ヨーロッパ
2.4617
ドイツ
NiMo28
フランス
NiMo28
溶接、加工、研磨、熱処理
プロセス
詳細
溶接
Excellent weldability using TIG, MIG methods, suitable for joining components in corrosive environments without compromising integrity.
処理
Machinable using conventional methods, offers flexibility in fabrication processes to meet specific design requirements.
研磨
Capable of achieving smooth finishes for enhanced corrosion resistance, critical in applications requiring sanitary conditions.
熱処理
Solution annealing at 1950°F (1065°C) followed by rapid quenching ensures optimal material properties and performance under stress.
冷間加工、メリット、デメリット
側面
詳細
冷間加工
Retains ductility and formability at room temperature, facilitating shaping and forming processes in manufacturing.
利点
Exceptional resistance to reducing acids, high mechanical strength, and reliability in aggressive chemical environments.
短所
Higher initial cost compared to conventional stainless steels, limited availability in certain shapes and sizes may require custom fabrication solutions.
類似製品
商品名
比較
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.
類似製品の比較
性質・特徴
HASTELLOY Alloy B-2 (UNS N10665)
HASTELLOY Alloy C-276 (UNS N10276)
HASTELLOY Alloy B-3 (UNS N10675)
ニッケル含有量 (%)
65.0 min
57.0
65.0
モリブデン含有量 (%)
26.0 – 30.0
16.0
28.0
クロム含有量 (%)
最大1.0
16.0
1.5
引張強さ (ksi)
110分
100 min
110分
降伏強さ (ksi)
51 min
40分
40分
耐食性
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.
