HASTELLOY® 合金 G

HASTELLOY-Alloy-G

Super Alloy HASTELLOY® G™ (UNS N06007) Product Introduction

HASTELLOY® G™ (UNS N06007) is a highly corrosion-resistant nickel-chromium-iron-molybdenum alloy designed for extreme environments where resistance to oxidizing and reducing acids is critical. This article provides a comprehensive introduction to HASTELLOY® G™ alloy, detailing its chemical composition, mechanical properties, performance across different temperatures, industry applications, available shapes and sizes, production standards, welding and processing capabilities, as well as advantages, disadvantages, and comparisons with similar products.

化學成分

元素作品 (%)
鎳 (Ni)66.0 min
鉻 (Cr)21.0 – 23.5
鐵 (Fe)5.0 – 7.0
鉬(Mo)6.0 – 8.0
1.0 – 2.5
錳(Mn)最大1.0
矽(Si)0.70 max
碳(C)0.05 – 0.15
硫(S)0最大.015
磷(P)0最大.015

機械性質

財產價值
拉伸強度,ksi (MPa)110(760)分鐘
屈服強度(0.2% 偏移),ksi (MPa)52 (360) min
伸長率(2 英吋中的%)40分鐘
硬度,洛氏 C (HRC)25 – 35

不同溫度下的性能

HASTELLOY® G™ alloy exhibits excellent performance across varying temperature ranges:

  • 室內溫度: Exceptional resistance to oxidizing and reducing acids such as sulfuric acid, nitric acid, and hydrochloric acid.
  • 溫度升高: 在高達 1800°F (980°C) 的溫度下仍能保持高強度和耐腐蝕性,使其適合高溫化學加工。
  • 低溫: 在低溫下保持延展性和韌性,確保極端環境下的可靠性。

產業應用

HASTELLOY® G™ alloy finds applications across various industries due to its superior corrosion resistance:

工業部門應用領域
化學加工Reactors, heat exchangers, and piping systems handling aggressive chemicals such as acids and chlorides.
紙漿和造紙暴露於腐蝕性介質的漂白設備、蒸煮器和蒸發器的設備。
油和氣Components in refineries and petrochemical plants exposed to sour gas environments containing hydrogen sulfide.
製藥Pharmaceutical processing equipment requiring resistance to harsh chemicals.

形狀、尺寸和生產標準

產品形態可用形狀可供選擇的尺寸生產標準
板材/板材板材、片材厚度:0.025 英吋 – 1.000 英吋(0.64 毫米 – 25.4 毫米)ASTM B582
酒吧圓棒、六角棒直徑:0.25 英吋 – 6.0 英吋(6.35 毫米 – 152.4 毫米)ASTM B582
管材/管道無縫管、焊管外徑:0.5吋 – 6.0吋(12.7毫米 – 152.4毫米)ASTM B619、ASTM B622

標準及對應等級

國家/地區標準/等級
美國UNS N06007
歐洲2.4618
德國鎳鉻23鉬16銅
法國NC23FeDU

焊接、加工、拋光、熱處理

過程細節
焊接使用 TIG、MIG 方法具有出色的焊接性,確保在腐蝕環境下接頭牢固可靠。
加工可使用傳統方法進行加工,提供製造流程的靈活性。
拋光能夠實現光滑的表面,增強耐腐蝕性和美觀性。
熱處理在 2050°F (1121°C) 下退火,然後快速淬火可優化材料特性和性能。

冷加工的優點和缺點

方面細節
冷加工在室溫下保持延展性和成型性,有利於成型和製造。
優點Exceptional resistance to a wide range of aggressive chemicals, high mechanical strength, and reliability in extreme environments.
缺點與傳統不銹鋼相比,初始成本較高,特定形狀和尺寸的可用性有限。

類似產品

產品名稱比較
哈氏合金 C-276 (UNS N10276)Higher molybdenum content and broader resistance to oxidizing and reducing environments compared to G™ alloy.
哈氏合金 C-22 (UNS N06022)更高的鉻含量,耐氧化性和還原性酸,包括濕氯、氯化鐵和氯化銅。

同類產品比較

屬性/特徵Hastelloy G™哈氏合金C-276哈氏合金C-22
鎳含量(%)66.057.056.0
鉬含量(%)6.0 – 8.015.0 – 17.012.5 – 14.5
鉻含量(%)21.0 – 23.514.5 – 16.520.0 – 22.5
拉伸強度 (ksi)110 分鐘110 分鐘115 分鐘
屈服強度 (ksi)52分鐘52分鐘55分鐘
耐腐蝕性能Excellent in oxidizing and reducing acids, including sulfuric, nitric, and hydrochloric acid.在各種腐蝕環境中表現出色,包括強氧化劑和還原劑。具有優異的氧化性和還原性酸性能,包括濕氯、氯化鐵和氯化銅。

This comprehensive article provides a detailed introduction to HASTELLOY® G™ alloy (UNS N06007), 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.