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Views: 5 Author: Site Editor Publish Time: 2025-06-09 Origin: Site
Hastelloy G30 Flanges offer very high resistance to the nitric acid and hydrofluoric acid solutions used in the pickling of stainless steel. At a temperature of 140°F or 60°C, this particular application needs to dilute 15% nitric acid and 5% hydrofluoric acid. It also provides great resilience to industrial phosphoric acid. These flanges are mostly used in the fertilizer industry as an acid evaporators. Hastelloy G30 Flanges are used in chemical processing. In this process, phosphoric acid, sulfuric acid, and nitric acid are involved. It is also used in gas scrubbers, acid production, pickling, petrochemical, nuclear fuel reprocessing, and nuclear gas processing. It is suitable to use in welded conditions. These flanges have characteristics like good fatigue performance, fracture toughness, and plastic. It also shows creep and oxidation resistance. Hastelloy G30 Flanges have physical properties such as density and melting point. These flanges also show mechanical properties at high temperatures and room temperatures, such as tensile strength, yield strength, and modulus of elasticity. Reduction of area and hardness are also some of its main characteristics. Flanges have thermal properties, linear coefficient of thermal expansion, and thermal conductivity.
The composition features of Hastelloy G30 Flange are mainly as follows:
Nickel-based alloy: The matrix of Hastelloy G30 Flange is a nickel-based alloy, which is one of the main reasons for its good oxidation resistance and corrosion resistance.
Chromium content: Hastelloy G30 Flange contains a certain amount of chromium, which is one of the main reasons for its good corrosion resistance.
Containing molybdenum and tungsten elements: Hastelloy G30 Flange contains a moderate amount of molybdenum and tungsten elements, which add to its high-temperature strength and oxidation resistance.
A small amount of elements: Hastelloy G30 Flange also contains small amounts of carbon, nitrogen, silicon, magnesium, and other elements, which have a certain improvement effect on the properties of the alloy.
Hastelloy G30 Flange is known for its impressive tensile and yield strength, making it perfect for demanding industrial applications. Tensile strength is the maximum stress a material can withstand while being stretched or pulled before breaking, while yield strength is the stress at which it starts to deform plastically. These characteristics ensure Hastelloy G30 Flange can handle significant loads without permanent damage, even in tough environments like chemical processing and power generation. Hastelloy G30 Flange excellent elongation means it can stretch significantly before breaking, which is crucial in applications involving mechanical strain, such as during fabrication or dynamic loading. High impact strength allows Hastelloy G30 to absorb energy during sudden shocks, making it reliable in environments with frequent mechanical impacts. Additionally, Hastelloy G30 is easy to weld, with minimal risk of hot cracking or carbide precipitation, ensuring consistent strength and corrosion resistance even after welding.
The high-temperature performance of Hastelloy G30 Flange is one of its most important characteristics. At high temperatures, its oxidation resistance and corrosion resistance are excellent. Its oxidation resistance is mainly due to its content design and manufacturing process, which effectively resists high-temperature oxidation and corrosion. At the same time, its corrosion resistance is also good, capable of resisting corrosion from various media.
Specifications | ASTM B564 / ASME SB564 |
Standard | ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092 |
Pressure Rating | Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS |
Size | 1/2″ (15 NB) to 48″ (1200NB) DN10~DN5000 |
Flange EN | 6Bar 10Bar 16Bar 25Bar 40Bar |
Coating | Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized |
Common Types | Forged / Threaded / Screwed / Plate |
Face Type | Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove, Groove |
Test Certificates | EN 10204/3.1B, |
Hastelloy G30 Blind Flange : FOB Price US $800.00-$4,800.00/ Ton
ASME SB 564 Alloy G30 Lap Joint Flange : FOB Price US $1,299.00-$2,999.00/ Ton
Hastelloy G30 Forged Flanges : FOB Price US $900.00-$4,000.00/ Ton
ANSI B16.5 Hastelloy G30 Slip on Flange : FOB Price US $500.00-$2,200.00 / Ton
Hastelloy G30 Weld Neck Flange : FOB Price US $800.00-$4,000.00/ Ton
Hastelloy G30 flange plays a key connection role in harsh industrial environments due to the excellent corrosion resistance, high temperature resistance and stress corrosion cracking resistance of nickel-based alloys. In the chemical industry, Hastelloy G30 flanges can be used to connect pipelines and equipment that handle strong corrosive media such as concentrated phosphoric acid, sulfuric acid, and chloride ion solutions, such as reactor flanges in phosphoric acid production and pipeline connectors in sulfuric acid alkylation units, effectively preventing the medium from corroding the connection and causing leakage; in petroleum refining and natural gas extraction, it is suitable for working conditions with high temperature and high pressure and corrosive gases such as hydrogen sulfide and carbon dioxide, such as wellhead gathering and transportation Hastelloy G30 pipeline flanges and equipment interfaces of desulfurization devices, which can resist stress corrosion in wet hydrogen sulfide environments; in flue gas desulfurization systems, Hastelloy G30 connection flanges used as absorption towers and circulating pipelines can withstand erosion and corrosion from acidic media such as bisulfite and chloride ions; in addition, in the pharmaceutical industry's highly corrosive liquid delivery system and the acid wastewater treatment pipelines of environmental protection equipment, Hastelloy G30 flanges ensure long-term stable operation of the system with reliable sealing and corrosion resistance, and avoid safety hazards caused by flange corrosion.
