Sự miêu tả
Mục lục
- 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 904Mặt bích chữ L
- Variety of Industrial Flanges Made from UNS N08904 thép không gỉ
- 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
Stainless Steel Flange
904L stainless steel flanges are high-alloy components designed for use in highly corrosive environments. Sản xuất từ 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. Chúng được sử dụng rộng rãi trong xử lý hóa học, marine applications, dược phẩm, and pollution control equipment. Available types include weld neck, mù, trượt trên, ổ cắm hàn, khớp nối, và mặt bích ren, conforming to standards such as ASTM A182 và ANSI B16.5. Their durability and corrosion resistance make them ideal for critical piping systems in aggressive environments.
Specifications of 904L Stainless Steel Flanges
| Thông số kỹ thuật | ASTM A182 / ASME SA182 |
|---|---|
| Lớp học | 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc. |
| Kích cỡ | 1/2`` (15 NB) đến 48" (1200NB) |
| Tiêu chuẩn | ANSI/ASME B16.5, B16.48, BS4504, B 16.47 Dòng A & B, BS 10, EN-1092, DIN, vân vân. |
Size Range of SS 904L Flanges (in Inches)
| Kích thước ống danh nghĩa | 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 | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cổ hàn | Slip-On Threaded Socket | Lập doanh | Slip-on Socket | Lập doanh | ||||||||
| ồ | Q | R | X | Y | Y | Y | W | B | H | 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
| Cấp | C | Mn | Và | P | S | Cr | Mo | TRONG | Cư |
| SS 904L | 0.020 tối đa | 2 tối đa | 1.00 tối đa | 0.040 tối đa | 0.030 tối đa | 19.00 – 23.00 | 4.00 – 5.00 tối đa | 23.00 – 28.00 | 1.00 – 2.00 |
Mechanical & Physical Characteristics of DIN 1.4539 904Mặt bích chữ L
| Tỉ trọng | điểm nóng chảy | Độ bền kéo | Sức mạnh năng suất (0.2%Bù lại) | Độ giãn dài |
| 7.95 g/cm3 | 1350 °C (2460 ° F) | Psi – 71000 , MPa – 490 | Psi – 32000 , MPa – 220 | 35 % |
Variety of Industrial Flanges Made from UNS N08904 thép không gỉ
 |  |  |  |
| Mặt bích mù | Mặt bích chung | Mặt bích cổ hàn dài | Mặt bích tấm |
 |  |  |  |
| Giảm mặt bích | Mặt bích chung kiểu vòng | Trượt trên mặt bích | Mặt bích hàn ổ cắm |
 |  |  |  |
| Mặt bích cổ hàn | Lưỡi & Mặt bích rãnh | Có ren / Mặt bích bắt vít | Mặt bích mù cảnh tượng |
904L Stainless Steel Flange Equivalent Grades and Standards
| TIÊU CHUẨN | VẬT LIỆU KHÔNG. | CHÚNG TA | JIS | BS | KS | AFNOR | 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 Khớp kiểu vòng (RTJ) mặt bích, its thermal properties are critical for ensuring sealing performance and dimensional stability under varying temperature conditions.
| Tài sản | Giá trị | Ghi chú |
|---|---|---|
| Thermal Conductivity (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 |
| Phạm vi nóng chảy | 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 | Vừa phải | 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, nhà máy lọc dầu, 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
Nhà máy chế biến hóa chất
Resistant to strong acids such as sulfuric, phốt pho, and acetic acids, 904L weld neck flanges are ideal for piping systems handling corrosive fluids.Dầu & Gas Refineries
Used in offshore and onshore installations, especially where resistance to chloride-induced stress corrosion cracking is required.Nhà máy khử muối
Excellent performance in high-chloride environments makes them suitable for seawater treatment and desalination piping systems.Dược phẩm & Food Processing Industries
Non-reactive and hygienic surface properties make F904L flanges suitable for clean-in-place (CIP) systems and sterile fluid pipelines.bột giấy & Paper Industry
Used in bleach plants and acidic process lines due to their resistance to oxidizing media.Kỹ thuật hàng hải
Preferred in shipbuilding and offshore platforms due to their durability in saline water environments.Pollution Control Equipment
Employed in flue gas desulfurization (thảo luận nhóm) hệ thống, especially in scrubber assemblies and acid gas lines.
Physical Parameters of 904L Stainless Steel Flanges
| Tài sản | Giá trị | Sự miêu tả |
|---|---|---|
| Tỉ trọng | 8.0 g/cm³ (8000 kg/m³) | High-density material suitable for pressure retention |
| Mô đun đàn hồi | ~200 GPa (at 20°C) | Indicates good rigidity and deformation resistance |
| Poisson’s Ratio | ~0.30 | Ratio of lateral to axial strain |
| Thermal Conductivity | ~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 |
| Phạm vi nóng chảy | 1300 – 1390°C | Relevant for welding and high-temperature environments |
Weight Chart for ASTM A182 F904L Long Weld Neck Flanges
Ghi chú: The actual weight may vary slightly depending on exact dimensions, độ dày mặt bích, neck length, and manufacturing tolerances.
| Pipe Normal Diam. | O.D. mặt bích | Thk. Of Flange Min | Diam. của Hub | Diameter of Raised Face | Length Hub.Y | Thread Length | Diam. of Bolt Circle | Diam. of Bolt Holes | Number of Bolts | Diam. của Bu lông (inch) | KG | LB | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| inch | dn | ồ | C | X | G | Y | T | 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
Vật liệu: ASTM A182 F904L (UNS N08904, DIN 1.4539)
Đơn vị: mm (milimét), unless noted
| Tiêu chuẩn | Lớp học | Đường kính | Đường kính vòng tròn bu lông | Số lượng bu lông | Kích thước bu lông | Diameter of Bolt Hole |
|---|---|---|---|---|---|---|
| AS4087 | PN14 | 95 | 67 | 4 | M12 | 14 |
| BẰNG 2129 mặt bích | 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 | |
| ANSI B16.5 | ANSI 150 | 89 | 60 | 4 | 13 | 16 |
| ANSI 300 | 95 | 67 | 4 | 13 | 16 | |
| ANSI 600 | 95 | 67 | 4 | 13 | 16 | |
| ANSI 900 | 121 | 83 | 4 | 19 | 22 | |
| ANSI 1500 | 121 | 83 | 4 | 19 | 22 | |
| ISO 7005 (DIN) mặt bích | PN6 | 80 | 55 | 4 | M10 | 11 |
| PN10 | 95 | 65 | 4 | M12 | 14 | |
| PN16 | 95 | 65 | 4 | M12 | 14 | |
| PN20 | 90 | 60.5 | 4 | M14 | 16 | |
| PN25 | 95 | 65 | 4 | M12 | 14 | |
| PN40 | 95 | 65 | 4 | M12 | 14 |
Pressure Rating Details for Stainless Steel F904L Weld Neck Flanges
| Flange Class | Max Pressure @ 100°F (38°C) | Max Pressure @ 200°F (93°C) | Max Pressure @ 400°F (204°C) |
|---|---|---|---|
| Lớp học 150 | 285 psi (19.6 thanh) | 235 psi (16.2 thanh) | 170 psi (11.7 thanh) |
| Lớp học 300 | 740 psi (51.0 thanh) | 605 psi (41.7 thanh) | 460 psi (31.7 thanh) |
| Lớp học 600 | 1480 psi (102.0 thanh) | 1210 psi (83.4 thanh) | 920 psi (63.4 thanh) |
| Lớp học 900 | 2220 psi (153.1 thanh) | 1815 psi (125.1 thanh) | 1380 psi (95.1 thanh) |
| Lớp học 1500 | 3705 psi (255.4 thanh) | 3025 psi (208.5 thanh) | 2295 psi (158.3 thanh) |
| Lớp học 2500 | 6170 psi (425.3 thanh) | 5040 psi (347.6 thanh) | 3825 psi (263.8 thanh) |
Key Notes:
These ratings apply to F904L weld neck flanges manufactured in accordance with ASME B16.5 sử dụng 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, hoàn thiện mặt bích, and system design.
If you need pressure ratings at higher temperatures (ví dụ., 600°F or 800°F), or want EN 1092-1 PN rating equivalents, I can provide that as well.
