ASTM A182 F904L Flanges is a high-quality corrosion-resistant flange with excellent mechanical and corrosion resistance properties. Verified through intergranular corrosion tests, ensuring its reliability and long service life. Widely used in industries such as petrochemical, marine engineering, aerospace, etc. The ASTM A182 F904L Flanges can maintain stable working conditions and effectively prevent leakage issues, regardless of high temperature, high pressure, or harsh environments.
The factory has passed NORSOK M-650 certification to ensure the reliability of the production process and further standardized the production process.
NORSOK M-650 is a standard for the Norwegian petroleum industry, used to guide material selection and requirements in the oil and gas industry. For UNS N08904 Flanges material, the following are some requirements that may be involved in the NORSOK M-650 standard:
1、Chemical composition requirements: The NORSOK M-650 standard may specify the chemical composition requirements for UNS N08904 Flanges materials, including the content range of main alloy elements. For example, standards may specify minimum and maximum content limits for elements such as chromium, nickel, molybdenum, and copper.
2、Mechanical performance requirements: The NORSOK M-650 standard may require the mechanical properties of UNS N08904 Flanges material, such as tensile strength, yield strength, elongation, and impact toughness. These requirements aim to ensure that materials can maintain sufficient strength and reliability under various working conditions.
3、Corrosion resistance requirements: Due to the excellent corrosion resistance of UNS N08904 Flanges material, the NORSOK M-650 standard may require some corrosion resistance tests on the material, such as sulfide corrosion resistance and acid corrosion resistance. These tests aim to verify the corrosion resistance of materials in the oil and natural gas fields.
According to the ASTM A262/A269M-15a specification, intergranular corrosion test is a testing method used to evaluate the susceptibility of materials such as stainless steel to intergranular corrosion. Intergranular corrosion refers to the corrosion phenomenon that occurs at metal grain boundaries under certain conditions.
For ASTM A182 F904L stainless steel material, the following test methods in the ASTM A262-15a specification can be used for intergranular corrosion testing:
1. Method A – Copper Sulfate Sulfuric Acid Test: This is a test method used to detect the sensitivity of intergranular corrosion in cast stainless steel materials.
Method B – Nitric Acid Test: This is a test method used to detect the sensitivity of intergranular corrosion in stainless steel billets and heat treated stainless steel materials.
3. Method C – Nitric Acid Copper Sulfate Test: This is a test method used to detect the sensitivity of intergranular corrosion in welded stainless steel materials.
These test methods can be selected based on the usage and requirements of the materials. Each test method has specific reagents and test conditions for exposing materials that may cause intergranular corrosion.
Please note that the interpretation and evaluation of intergranular corrosion test results should be carried out by professional material engineers or laboratories to ensure the accuracy and reliability of the results. For specific intergranular corrosion testing of ASTM A182 F904L material, it is recommended to consult relevant manufacturers, suppliers, or laboratories for more detailed and specific information.
ASTM A182 F904L Flanges Tensile Properties Testing
ASTM A182 F904L Flanges Chemical Composition
| Grade | UNS | C% | Mn% | Si% | S% | P% | Cr% | Ni% | Mo% |
| F304L | S30403 | 0.30 max | 2.00 max | 1.00 max | 0.03 max | 0.045 max | 18.00-20.00 | 8.00-13.00 | |
| F316L | S31603 | 0.30 max | 2.00 max | 1.00 max | 0.03 max | 0.045 max | 16.00-18.00 | 10.00-15.00 | 2.00-3.00 |
| F321 | S32100 | 0.08 max | 2.00 max | 1.00 max | 0.03 max | 0.045 max | 17.00-19.00 | 9.00-12.00 | |
| F310 | S31000 | 0.25 max | 2.00 max | 1.00 max | 0.03 max | 0.045 max | 24.00-26.00 | 19.00-22.00 | |
| F347 | S34700 | 0.08 max | 2.00 max | 1.00 max | 0.03 max | 0.045 max | 17.00-20.00 | 9.00-13.00 | |
| F316Ti | S31653 | 0.08 max | 2.00 max | 1.00 max | 0.03 max | 0.045 max | 16.00-18.00 | 10.00-14.00 | 2.00-3.00 |
| F904L | N08904 | 0.02 max | 2.00 max | 1.00 max | 0.03 max | 0.04 max | 19.00-23.00 | 23.00-28.00 | 4.00-5.00 |
| F310MoLN | S31050 | 0.03 max | 2.00 max | 0.4 max | 0.015 max | 0.03 max | 24.00-26.00 | 21.00-22.00 | 2.00-3.00 |
ASTM A182 F904L Flanges has a wide range of applications in the chemical industry, mainly due to its excellent corrosion resistance and ability to adapt to various chemical media. The following are some common applications of ASTM A182 F904L Flanges in the chemical industry:
1. Acid alkali process: The ASTM A182 F904L Flanges is often used for processes that handle strong acids and alkalis, such as sulfuric acid, hydrochloric acid, nitric acid, and hydrofluoric acid. It can resist corrosion in acidic environments, ensuring the reliability and durability of the system.
2. Chloride environment: The ASTM A182 F904L Flanges has excellent corrosion resistance to chloride media, making it widely used in environments containing chloride ions. For example, it is often used in seawater treatment equipment, salt water processing equipment, and chloride chemical production processes.
3. Sulfurization process: The ASTM A182 F904L Flanges has excellent corrosion resistance to sulfide media and is suitable for applications in sulfurization processes such as petroleum and natural gas processing, oil refining, and fertilizer production.
4. High temperature environment: The ASTM A182 F904L Flanges has good heat resistance and can work in high temperature environments. Therefore, the ASTM A182 F904L Flanges is widely used in high-temperature chemical reactions, combustion processes, and heat treatment applications.
It should be noted that material selection in specific applications should be evaluated and selected based on actual process conditions, medium characteristics, and process requirements. It is recommended to consult professional material engineers or equipment manufacturers when selecting materials and designing systems to ensure that the selected materials meet the application requirements and ensure the reliable operation of the system.
Heat treatment of ASTM A182 F904L Flanges
ASTM A182 F904L Tensile Properties at Room Temperature
| Grade | Tensile strength ≥[MPa] | Yield strength, min，≥[MPa] | Elongation ≥% | Reduction of area, min,≥% |
| F304L | 485 | 170 | 30 | 50 |
| F316L | 485 | 170 | 30 | 50 |
| F321 | 515 | 205 | 30 | 50 |
| F310 | 515 | 205 | 30 | 50 |
| F347 | 515 | 205 | 30 | 50 |
| F316Ti | 515 | 205 | 30 | 40 |
| F904L | 490 | 215 | 35 | |
| F310MoLN | 540 | 255 | 25 | 50 |
The ASTM A182 F904L Flanges is widely used in the petroleum industry, mainly due to its excellent corrosion resistance and ability to adapt to various petroleum processes. The following are some common applications of ASTM A182 F904L Flanges in the petroleum industry:
1. Oil extraction and production: ASTM A182 F904L Flanges are often used for pipeline connections and equipment interfaces in oil extraction and production processes, including oil wellhead devices, oil well pipelines, pump stations, and valves. It can resist the corrosion of oil and natural gas media containing acidic, alkaline, and chloride substances, ensuring the stability and safe operation of the system.
2. Refining and Petrochemical Processes: The ASTM A182 F904L Flanges plays an important role in refining and petrochemical processes. It is used for various equipment and pipeline connections in the refining process, such as distillation towers, storage tanks, heat exchangers, and reactors. It can withstand high temperatures, high pressures, and complex chemical environments, ensuring the reliability and safety of refining and petrochemical equipment.
3. Liquefied natural gas (LNG) process: The ASTM A182 F904L Flanges is widely used in liquefied natural gas factories. It is used for LNG storage tank, transmission pipeline and connecting device, and can withstand extremely low temperature and high pressure environment, while resisting corrosive natural gas medium.
4. Offshore Oil platform: ASTM A182 F904L Flanges has important applications in offshore Oil platform and offshore oilfield facilities. Due to the chloride and corrosivity in the seawater environment,ASTM A182 F904L Flanges can resist the corrosion in the marine environment, ensuring the reliability and long life of the Oil platform.
ASTM A182 F904L Flanges material needs to be comprehensively evaluated and selected based on actual process conditions, medium characteristics, pressure, and temperature factors to ensure its applicability and reliable operation of the system. It is recommended to consult professional material engineers or equipment manufacturers when selecting materials and designing systems to obtain more detailed and specific recommendations.
ASTM A182 F904L Flanges packaging and delivery
The ASTM A182 F904L Flanges is playing a role in an increasing number of important fields such as chemical pipelines, petroleum pipelines, seawater pipelines, and offshore platforms due to its excellent corrosion resistance. The excellent performance of the UNS N08904 flanges in intergranular corrosion tests shows that it is very suitable for application in seawater conditions, and the production process specification stability of the ASTM A182 F904L Flanges is ensured through NORSOK M-650 standard certification.
