Описание
Таблица содержания
- Specifications of 904L Stainless Steel Flanges
- Size Range of SS 904L Flanges (in Inches)
- Chemical Composition of ASME SA182 904L Weld Neck Raised Face Flanges
- Mechanical & Physical Characteristics of DIN 1.4539 904Г-образные фланцы
- Variety of Industrial Flanges Made from UNS N08904 Нержавеющая сталь
- 904L Stainless Steel Flange Equivalent Grades and Standards
- Thermal Properties of DIN 1.4539 Ring-Type Joint Flanges
- Applications of Stainless Steel F904L Flanges
- Physical Parameters of 904L Stainless Steel Flanges
- Weight Chart for ASTM A182 F904L Long Weld Neck Flanges
- ANSI B16.5 F904L Ring Type Joint Flange Dimension Chart
- Pressure Rating Details for Stainless Steel F904L Weld Neck Flanges
Фланец из нержавеющей стали
904L stainless steel flanges are high-alloy components designed for use in highly corrosive environments. Изготовлено из UNS N08904 (DIN 1.4539), these flanges offer exceptional resistance to strong reducing acids such as sulfuric acid, as well as excellent performance against chloride-induced pitting and crevice corrosion. With low carbon content and added copper, 904L flanges maintain strength while preventing intergranular corrosion after welding. They are widely used in chemical processing, морское применение, фармацевтика, and pollution control equipment. Available types include weld neck, слепой, без шнуровки, раструбная сварка, коленный сустав, и резьбовые фланцы, conforming to standards such as ASTM A182 and ANSI B16.5. Their durability and corrosion resistance make them ideal for critical piping systems in aggressive environments.
Specifications of 904L Stainless Steel Flanges
| Технические характеристики | ASTM A182 / АСМЭ СА182 |
|---|---|
| Сорт | 150#, 300#, 600#, 900#, 1500#, 2500#, ПН6, PN10, PN16, Ру25, Ру40, PN64 etc. |
| Размер | 1/2″ (15 Примечание:) to 48″ (1200Примечание:) |
| Стандарты | АНСИ/ASME B16.5, Б16.48, BS4504, Б 16.47 Серия А & Б, BS 10, EN-1092, DIN, и т. д.. |
Size Range of SS 904L Flanges (in Inches)
| Номинальный размер трубы | Outside Diameter of Flange | Thickness of Flange | Diameter of Raised Face | Diameter of Hub at Base | Length Thru Hub | Diameter or Bore | Diameter of Hub at Bevel | Radius of Fillet | Depth of Socket | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Welding Neck | Slip-On Threaded Socket | коленный сустав | Slip-on Socket | коленный сустав | ||||||||
| О | вопрос | R | X | Y | Y | Y | Вт | Б | ЧАС | r | Z | |
| 1/2 | 3-1/2 | 7/16 | 1-3/8 | 1-3/16 | 1-7/8 | 5/8 | 5/8 | .88 | .90 | .84 | 1/8 | 3/8 |
| 3/4 | 3-7/8 | 1/2 | 1-11/16 | 1-1/2 | 2-1/16 | 5/8 | 5/8 | 1.09 | 1.11 | 1.05 | 1/8 | 7/16 |
| 1 | 4-1/4 | 9/16 | 2 | 1-15/16 | 2-3/16 | 11/16 | 11/16 | 1.36 | 1.38 | 1.32 | 1/8 | 1/2 |
| 1-1/4 | 4-5/8 | 5/8 | 2-1/2 | 2-5/16 | 2-1/4 | 13/16 | 13/16 | 1.70 | 1.72 | 1.66 | 3/16 | 9/16 |
| 1-1/2 | 5 | 11/16 | 2-7/8 | 2-9/16 | 2-7/16 | 7/8 | 7/8 | 1.95 | 1.97 | 1.90 | 1/4 | 5/8 |
| 2 | 6 | 3/4 | 3-5/8 | 3-1/16 | 2-1/2 | 1 | 1 | 2.44 | 2.46 | 2.38 | 5/16 | 11/16 |
| 2-1/2 | 7 | 7/8 | 4-1/8 | 3-9/16 | 2-3/4 | 1-1/8 | 1-1/8 | 2.94 | 2.97 | 2.88 | 5/16 | 3/4 |
| 3 | 7-1/2 | 15/16 | 5 | 4-1/4 | 2-3/4 | 1-3/16 | 1-3/16 | 3.57 | 3.60 | 3.50 | 3/8 | 13/16 |
| 3-1/2 | 8-1/2 | 15/16 | 5-1/2 | 4-13/16 | 2-13/16 | 1-1/4 | 1-1/4 | 4.07 | 4.10 | 4.00 | 3/8 | 7/8 |
| 4 | 9 | 15/16 | 6-3/16 | 5-5/16 | 3 | 1-5/16 | 1-5/16 | 4.57 | 4.60 | 4.50 | 7/16 | 15/16 |
| 5 | 10 | 15/16 | 7.5/16 | 6-7/16 | 3-1/2 | 1-7/16 | 1-7/16 | 5.66 | 5.69 | 5.56 | 7/16 | 15/16 |
| 6 | 11 | 1 | 8-1/2 | 7-9/16 | 3-1/2 | 1-9/16 | 1-9/16 | 6.72 | 6.75 | 6.63 | 1/2 | 1-1/16 |
| 8 | 13-1/2 | 1-1/8 | 10-5/8 | 9-11/16 | 4 | 1-3/4 | 1-3/4 | 8.72 | 8.75 | 8.63 | 1/2 | 1-1/4 |
| 10 | 16 | 1-3/16 | 12-3/4 | 12 | 4 | 1-15/16 | 1-15/16 | 10.88 | 10.92 | 10.75 | 1/2 | 1-5/16 |
| 12 | 19 | 1-1/4 | 15 | 14-3/8 | 4-1/2 | 2-3/16 | 2-3/16 | 12.88 | 12.92 | 12.75 | 1/2 | 1-9/16 |
| 14 | 21 | 1-3/8 | 16-1/4 | 15-3/4 | 5 | 2-1/4 | 3-1/8 | 14.14 | 14.18 | 14.00 | 1/2 | 1-5/8 |
| 16 | 23-1/2 | 1-7/16 | 18-1/2 | 18 | 5 | 2-1/2 | 3-7/16 | 16.16 | 16.19 | 16.00 | 1/2 | 1-3/4 |
| 18 | 25 | 1-9/16 | 21 | 19-7/8 | 5-1/2 | 2-11/16 | 3-13/16 | 18.18 | 18.20 | 18.00 | 1/2 | 1-15/16 |
| 20 | 27-1/2 | 1-11/16 | 23 | 22 | 5-11/16 | 2-7/8 | 4-1/16 | 20.20 | 20.25 | 20.00 | 1/2 | 2-1/8 |
| 24 | 32 | 1-7/8 | 27-1/4 | 26-1/8 | 6 | 3-1/4 | 4-3/8 | 24.25 | 24.25 | 24.00 | 1/2 | 2-1/2 |
Chemical Composition of ASME SA182 904L Weld Neck Raised Face Flanges
| Оценка | С | Мин. | И | П | С | Кр | Мо | В | Cu |
| SS 904L | 0.020 Макс | 2 Макс | 1.00 Макс | 0.040 Макс | 0.030 Макс | 19.00 – 23.00 | 4.00 – 5.00 Макс | 23.00 – 28.00 | 1.00 – 2.00 |
Mechanical & Physical Characteristics of DIN 1.4539 904Г-образные фланцы
| Плотность | Точка плавления | Предел прочности | Предел текучести (0.2%Компенсировать) | Удлинение |
| 7.95 г/см3 | 1350 °С (2460 °Ф) | Psi – 71000 , MPa – 490 | Psi – 32000 , MPa – 220 | 35 % |
Variety of Industrial Flanges Made from UNS N08904 Нержавеющая сталь
 |  |  |  |
| Слепые фланцы | Фланцы внахлестку | Длинные приварные фланцы | Пластинчатые фланцы |
 |  |  |  |
| Редукционные фланцы | Соединительные фланцы кольцевого типа | Наденьте фланцы | Фланцы под приварку враструб |
 |  |  |  |
| Фланцы с приварной горловиной | Язык & Пазы Фланцы | Резьбовой / Резьбовые фланцы | Фланцы для очковых заглушек |
904L Stainless Steel Flange Equivalent Grades and Standards
| СТАНДАРТ | НОМЕР МАТЕРИАЛА. | НАС | JIS | BS | KS | АФНОР | EN |
| SS 904L | 1.4539 | N08904 | SUS 904L | 904S13 | STS 317J5 | Z2 NCDU 25-20 | X1NiCrMoCu25-20-5 |
Thermal Properties of DIN 1.4539 Ring-Type Joint Flanges
DIN 1.4539, also known as Alloy 904L or UNS N08904, is an austenitic stainless steel designed for exceptional corrosion resistance, particularly in aggressive environments. When used in Кольцевое соединение (РТЖ) фланцы, its thermal properties are critical for ensuring sealing performance and dimensional stability under varying temperature conditions.
| Свойство | Value | Notes |
|---|---|---|
| Теплопроводность (at 20°C) | ~12.0 W/m·K | Lower than carbon steel, typical of austenitic SS |
| Specific Heat Capacity (at 20°C) | ~500 J/kg·K | High thermal inertia, suitable for stable operation |
| Coefficient of Thermal Expansion | ~16.5 µm/m·K (from 20–100°C) | Important for gasket fit in RTJ sealing surfaces |
| Диапазон плавления | 1300 – 1390°C | Indicates safe upper limit for high-temp service |
| Maximum Continuous Service Temp | ~400°C (in oxidizing environments) | Beyond this, corrosion resistance may reduce |
| Thermal Shock Resistance | Умеренный | Preheating and slow cooling are recommended in cyclic heating scenarios |
These thermal characteristics make DIN 1.4539 RTJ flanges ideal for high-temperature, high-pressure sealing applications in chemical processing, нефтеперерабатывающий завод, and offshore installations, where thermal cycling and aggressive media are present. Proper design allowances for expansion and thermal stress are essential to maintain joint integrity.
Applications of Stainless Steel F904L Flanges
Химические перерабатывающие заводы
Resistant to strong acids such as sulfuric, phosphoric, and acetic acids, 904L weld neck flanges are ideal for piping systems handling corrosive fluids.Масло & Gas Refineries
Used in offshore and onshore installations, especially where resistance to chloride-induced stress corrosion cracking is required.Опреснительные установки
Excellent performance in high-chloride environments makes them suitable for seawater treatment and desalination piping systems.Фармацевтический & Food Processing Industries
Non-reactive and hygienic surface properties make F904L flanges suitable for clean-in-place (CIP) systems and sterile fluid pipelines.Pulp & Paper Industry
Used in bleach plants and acidic process lines due to their resistance to oxidizing media.Морская инженерия
Preferred in shipbuilding and offshore platforms due to their durability in saline water environments.Pollution Control Equipment
Employed in flue gas desulfurization (ФГД) системы, especially in scrubber assemblies and acid gas lines.
Physical Parameters of 904L Stainless Steel Flanges
| Свойство | Value | Описание |
|---|---|---|
| Плотность | 8.0 г/см³ (8000 kg/m³) | High-density material suitable for pressure retention |
| Модуль упругости | ~200 GPa (at 20°C) | Indicates good rigidity and deformation resistance |
| Poisson’s Ratio | ~0.30 | Ratio of lateral to axial strain |
| Теплопроводность | ~12 W/m·K (at 20°C) | Lower than carbon steel; affects heat dissipation rate |
| Specific Heat Capacity | ~500 J/kg·K (at 20°C) | Reflects energy required to raise temperature |
| Electrical Resistivity | ~0.95 µΩ·m | Higher than common stainless grades, reducing galvanic effects |
| Magnetic Permeability | ~1.0 (non-magnetic in annealed condition) | Suitable for non-magnetic applications |
| Диапазон плавления | 1300 – 1390°C | Relevant for welding and high-temperature environments |
Weight Chart for ASTM A182 F904L Long Weld Neck Flanges
Примечание: The actual weight may vary slightly depending on exact dimensions, толщина фланца, neck length, and manufacturing tolerances.
| Pipe Normal Diam. | O.D. Фланец | Thk. Of Flange Min | Diam. из Hub | Diameter of Raised Face | Length Hub.Y | Thread Length | Diam. of Bolt Circle | Diam. of Bolt Holes | Number of Bolts | Diam. из Bolts (дюйм) | KG | ФУНТ | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| дюйм | dn | О | С | X | Г | Y | Т | BC | BH | BN | BD | ||
| 1/2″ | 15 | 89.00 | 11.20 | 30.20 | 35.10 | 15.70 | 15.70 | 60.50 | 15.80 | 4 | 1/2″ | 0.4 | 0.9 |
| 3/4″ | 20 | 98.50 | 12.70 | 38.10 | 42.90 | 15.70 | 15.70 | 69.90 | 15.80 | 4 | 1/2″ | 0.7 | 1.5 |
| 1″ | 25 | 108.00 | 14.20 | 49.30 | 50.80 | 17.50 | 17.50 | 79.30 | 15.80 | 4 | 1/2″ | 0.8 | 1.8 |
| 1-1/4″ | 32 | 117.50 | 15.70 | 58.70 | 63.50 | 20.60 | 20.60 | 88.90 | 15.80 | 4 | 1/2″ | 1.2 | 2.6 |
| 1-1/2″ | 40 | 127.00 | 17.50 | 65.00 | 73.20 | 22.40 | 22.40 | 98.60 | 15.80 | 4 | 1/2″ | 1.5 | 3.3 |
| 2″ | 50 | 152.50 | 19.10 | 77.70 | 91.90 | 25.40 | 25.40 | 120.70 | 19.10 | 4 | 5/8″ | 2.3 | 5.1 |
| 2-1/2″ | 65 | 178.00 | 22.40 | 90.40 | 104.60 | 28.40 | 28.40 | 139.70 | 19.10 | 4 | 5/8″ | 3.7 | 8.1 |
| 3″ | 80 | 190.50 | 23.90 | 108.00 | 127.00 | 30.20 | 30.20 | 152.40 | 19.10 | 4 | 5/8″ | 4.1 | 9 |
| 3-1/2″ | 90 | 216.00 | 23.90 | 122.20 | 139.70 | 31.80 | 31.80 | 177.80 | 19.10 | 8 | 5/8″ | 5.1 | 11.2 |
| 4″ | 100 | 228.50 | 23.90 | 134.90 | 157.20 | 33.30 | 33.30 | 190.50 | 19.10 | 8 | 5/8″ | 5.9 | 13 |
| 5″ | 125 | 254.00 | 23.90 | 163.60 | 185.70 | 36.60 | 36.60 | 215.90 | 22.40 | 8 | 3/4″ | 7 | 15.4 |
| 6″ | 150 | 279.50 | 25.40 | 192.00 | 215.90 | 39.60 | 39.60 | 241.30 | 22.40 | 8 | 3/4″ | 8.4 | 18.5 |
| 8″ | 200 | 343.00 | 28.40 | 246.10 | 269.70 | 44.50 | 44.50 | 298.50 | 22.40 | 8 | 3/4″ | 13 | 28.6 |
| 10″ | 250 | 406.50 | 30.20 | 304.80 | 323.90 | 49.30 | 49.30 | 362.00 | 25.40 | 12 | 7/8″ | 18 | 39.5 |
| 12″ | 300 | 482.50 | 31.80 | 365.30 | 381.00 | 55.60 | 55.60 | 431.80 | 25.40 | 12 | 7/8″ | 29 | 64 |
| 14″ | 350 | 533.50 | 35.10 | 400.10 | 412.80 | 57.20 | 57.20 | 476.30 | 28.50 | 12 | 1″ | 39 | 86 |
| 16″ | 400 | 597.00 | 36.60 | 457.20 | 469.90 | 63.50 | 63.50 | 539.80 | 28.50 | 16 | 1″ | 47 | 103 |
| 18″ | 450 | 635.00 | 39.60 | 505.00 | 533.40 | 68.30 | 68.30 | 577.90 | 31.80 | 16 | 1 1/8″ | 57 | 126 |
| 20″ | 500 | 698.50 | 42.90 | 558.80 | 584.20 | 73.20 | 73.20 | 635.00 | 31.80 | 20 | 1 1/8″ | 76 | 167 |
| 24″ | 600 | 813.00 | 47.80 | 663.40 | 692.20 | 82.60 | 82.60 | 749.30 | 35.10 | 20 | 1 1/4″ | 97 | 214 |
ANSI B16.5 F904L Ring Type Joint Flange Dimension Chart
Материал: ASTM A182 F904L (UNS N08904, DIN 1.4539)
Unit: мм (миллиметры), unless noted
| Стандартный | Сорт | Диаметр | Диаметр окружности болта | Количество болтов | Размер болта | Diameter of Bolt Hole |
|---|---|---|---|---|---|---|
| AS4087 | PN14 | 95 | 67 | 4 | M12 | 14 |
| КАК 2129 Фланец | Table C | 95 | 67 | 4 | 13 | 14 |
| Table D | 95 | 67 | 4 | 13 | 14 | |
| Table E | 95 | 67 | 4 | 13 | 14 | |
| Table F | 95 | 67 | 4 | 13 | 14 | |
| Table H | 114 | 83 | 4 | 16 | 17 | |
| Table J | 114 | 83 | 4 | 16 | 17 | |
| АНСИ Б16.5 | АНСИ 150 | 89 | 60 | 4 | 13 | 16 |
| АНСИ 300 | 95 | 67 | 4 | 13 | 16 | |
| АНСИ 600 | 95 | 67 | 4 | 13 | 16 | |
| АНСИ 900 | 121 | 83 | 4 | 19 | 22 | |
| АНСИ 1500 | 121 | 83 | 4 | 19 | 22 | |
| ISO 7005 (DIN) Фланец | ПН6 | 80 | 55 | 4 | M10 | 11 |
| PN10 | 95 | 65 | 4 | M12 | 14 | |
| PN16 | 95 | 65 | 4 | M12 | 14 | |
| PN20 | 90 | 60.5 | 4 | M14 | 16 | |
| Ру25 | 95 | 65 | 4 | M12 | 14 | |
| Ру40 | 95 | 65 | 4 | M12 | 14 |
Pressure Rating Details for Stainless Steel F904L Weld Neck Flanges
| Flange Class | Max Pressure @ 100°F (38°С) | Max Pressure @ 200°F (93°С) | Max Pressure @ 400°F (204°С) |
|---|---|---|---|
| Сорт 150 | 285 пси (19.6 бар) | 235 пси (16.2 бар) | 170 пси (11.7 бар) |
| Сорт 300 | 740 пси (51.0 бар) | 605 пси (41.7 бар) | 460 пси (31.7 бар) |
| Сорт 600 | 1480 пси (102.0 бар) | 1210 пси (83.4 бар) | 920 пси (63.4 бар) |
| Сорт 900 | 2220 пси (153.1 бар) | 1815 пси (125.1 бар) | 1380 пси (95.1 бар) |
| Сорт 1500 | 3705 пси (255.4 бар) | 3025 пси (208.5 бар) | 2295 пси (158.3 бар) |
| Сорт 2500 | 6170 пси (425.3 бар) | 5040 пси (347.6 бар) | 3825 пси (263.8 бар) |
Key Notes:
These ratings apply to F904L weld neck flanges manufactured in accordance with ASME B16.5 using ASTM A182 F904L forging material.
904L has excellent corrosion resistance, especially in acidic and chloride-rich environments, making it suitable for high-pressure chemical and marine systems.
Actual operating pressure should also consider factors like gasket type, bolt torque, обработка поверхности фланца, and system design.
If you need pressure ratings at higher temperatures (например, 600°F or 800°F), or want EN 1092-1 PN rating equivalents, I can provide that as well.
