Baoji Lihua Nonferrous Metals Co., Ltd.
| Payment Terms | L/C, D/A, D/P, T/T, Western Union |
| Supply Ability | 100-200 Ton/Tons Per Month |
| Delivery Time | about 7-14 days for delivery |
| Packaging Details | All goods are packed by seaworth shipment materials or required by buyer |
| Seal Face | RF, FF, FM, M,RJ |
| Powder Or Not | Not Powder |
| Grade | Gr2 Gr7 Gr12 F2 F7 F12 |
| Use | chemical |
| Material Grade | Commonly Titanium Grade 2 |
| Flange Face Type | Raised Face/Flat Face/Ring Type Joint |
| Specifications | Complete |
| Processing Method | Forged, CNC machine |
| Pressure Rating | 150lbs to 2500lbs |
| Temperature Range | -250°F to 800°F |
| Nda Test | UT |
| Commodity | Flat welded flange /welding plate flange |
| Types | Weld Neck, Slip On, Blind, Socket Weld, Lap Joint, Threaded, Spectacle Blind, etc. |
| Production Method | Forged, Die forged |
| Flange Facing | RF, FF, RTJ |
| Brand Name | LHTi |
| Model Number | Titanium Long Weld Flanges |
| Certification | ISO9001,CE, API,etc |
| Place of Origin | Baoji, China |
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Product Specification
| Payment Terms | L/C, D/A, D/P, T/T, Western Union | Supply Ability | 100-200 Ton/Tons Per Month |
| Delivery Time | about 7-14 days for delivery | Packaging Details | All goods are packed by seaworth shipment materials or required by buyer |
| Seal Face | RF, FF, FM, M,RJ | Powder Or Not | Not Powder |
| Grade | Gr2 Gr7 Gr12 F2 F7 F12 | Use | chemical |
| Material Grade | Commonly Titanium Grade 2 | Flange Face Type | Raised Face/Flat Face/Ring Type Joint |
| Specifications | Complete | Processing Method | Forged, CNC machine |
| Pressure Rating | 150lbs to 2500lbs | Temperature Range | -250°F to 800°F |
| Nda Test | UT | Commodity | Flat welded flange /welding plate flange |
| Types | Weld Neck, Slip On, Blind, Socket Weld, Lap Joint, Threaded, Spectacle Blind, etc. | Production Method | Forged, Die forged |
| Flange Facing | RF, FF, RTJ | Brand Name | LHTi |
| Model Number | Titanium Long Weld Flanges | Certification | ISO9001,CE, API,etc |
| Place of Origin | Baoji, China | ||
| High Light | Industrial Piping System Titanium Flange ，ASTM B381 Titanium Flange ，Grade 2 RFWN Titanium Flange | ||
The ASTM B381 Titanium Grade 2 Long Weld Neck Flange (RFWN) is a critical component in industrial piping systems, known for its outstanding corrosion resistance, strength, and reliability. Specifically, Titanium Grade 2 is a commercially pure titanium alloy that offers excellent performance in highly corrosive environments such as marine, chemical processing, and aerospace applications. The Long Weld Neck Flange (RFWN) design, combined with the titanium material, ensures superior performance in demanding conditions.
Specifications of Titanium Long Weld Flanges:
| Specification | ASTM B381 / ASME SB381 |
|---|---|
| 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 SP44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092 |
| Size Range | 1/2″ (15 NB) to 48″ (1200NB), DN10 ~ DN5000 |
| Class | 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6,10, 16, 25, 40, Etc. |
| Connect Type/Flange Face Type | Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Small Male-Female (SMF) |
| JIS Standards | JIS B2220, JIS B2221, 5K, 10K, 16K, 20K, 30K, 40K, 63K |
| DIN Standards | DIN 2527, DIN 2566, DIN 2573, DIN 2576, DIN 2641, DIN 2642, DIN 2655, DIN 2656, DIN 2627, DIN 2628, DIN 2629, DIN 2631, DIN 2632, DIN 2633, DIN 2634, DIN 2635, DIN 2636, DIN 2637, DIN 2638, DIN 2673 |
| BS Standards | BS 4504, BS 1560, BS 10 |
| Property | Titanium Grade 2 | Titanium Grade 5 | Titanium Grade 7 | Carbon Steel | Stainless Steel |
|---|---|---|---|---|---|
| Composition | 99% Titanium | 90% Titanium, 6% Aluminum, 4% Vanadium | 90% Titanium, 6% Aluminum, 2% Palladium | Iron + Carbon | Iron + Chromium (10-20%) + Nickel |
| Corrosion Resistance | Excellent (especially in chlorides, seawater) | Excellent (better high-temperature resistance) | Excellent (higher corrosion resistance in acidic environments) | Poor (rusts easily in moisture, acids) | Excellent (against oxidizing acids, chlorides) |
| Tensile Strength | Moderate | High (stronger than Grade 2) | Moderate to High | Moderate | High |
| Fatigue Resistance | Moderate | Excellent | High | Low | Good |
| Temperature Resistance | Moderate | High (better heat resistance) | High (oxidation resistance) | Low | Moderate |
| Applications | Marine, Chemical, Medical | Aerospace, Military, Chemical Processing | Chemical Processing (aggressive environments) | General Industry, Construction | Chemical, Food Processing, Medical |
| Advantages | Corrosion resistance, Weldability | Strength, High-performance, Heat resistance | Enhanced corrosion resistance, Weldability | Cost-effective, Strength | Durability, Corrosion resistance |
| Cost | Expensive | Expensive | Expensive | Low | Moderate to High |
| Size in Inch | Size in mm | Outer Dia. | Flange Thick. | Hub OD | Weld Neck OD | RF Dia. | RF Height | PCD | Hub Length | No of Bolts | Bolt Size UNC | Machine Bolt Length | RF Stud Length | Hole Size | ISO Stud Size |
| A | B | C | D | E | F | G | H | ||||||||
| 1/2 | 15 | 95 | 12.7 | 38 | 21.3 | 34.9 | 2 | 66.7 | As Required | 4 | 1/2 | 55 | 65 | 5/8 | M14 |
| 3/4 | 20 | 115 | 14.3 | 48 | 26.7 | 42.9 | 2 | 82.6 | As Required | 4 | 5/8 | 65 | 75 | 3/4 | M16 |
| 1 | 25 | 125 | 15.9 | 54 | 33.4 | 50.8 | 2 | 88.9 | As Required | 4 | 5/8 | 65 | 75 | 3/4 | M16 |
| 1 1/4 | 32 | 135 | 17.5 | 64 | 42.2 | 63.5 | 2 | 98.4 | As Required | 4 | 5/8 | 70 | 85 | 3/4 | M16 |
| 1 1/2 | 40 | 155 | 19.1 | 70 | 48.3 | 73 | 2 | 114.3 | As Required | 4 | 3/4 | 75 | 90 | 7/8 | M20 |
| 2 | 50 | 165 | 20.7 | 84 | 60.3 | 92.1 | 2 | 127 | As Required | 8 | 5/8 | 75 | 90 | 3/4 | M16 |
| 2 1/2 | 65 | 190 | 23.9 | 100 | 73 | 104.8 | 2 | 149.2 | As Required | 8 | 3/4 | 85 | 100 | 7/8 | M20 |
| 3 | 80 | 210 | 27 | 117 | 88.9 | 127 | 2 | 168.3 | As Required | 8 | 3/4 | 90 | 110 | 7/8 | M20 |
| 3 1/2 | 90 | 230 | 28.6 | 133 | 101.6 | 139.7 | 2 | 184.2 | As Required | 8 | 3/4 | 95 | 110 | 7/8 | M20 |
| 4 | 100 | 255 | 30.2 | 146 | 114.3 | 157.2 | 2 | 200 | As Required | 8 | 3/4 | 95 | 115 | 7/8 | M20 |
| 5 | 125 | 280 | 33.4 | 178 | 141.3 | 185.7 | 2 | 235 | As Required | 8 | 3/4 | 110 | 120 | 7/8 | M20 |
| 6 | 150 | 320 | 35 | 206 | 168.3 | 215.9 | 2 | 269.9 | As Required | 12 | 3/4 | 110 | 120 | 7/8 | M20 |
| 8 | 200 | 380 | 39.7 | 260 | 219.1 | 269.9 | 2 | 330.2 | As Required | 12 | 7/8 | 120 | 140 | 1 | M24 |
| 10 | 250 | 445 | 46.1 | 321 | 273 | 323.8 | 2 | 387.4 | As Required | 16 | 1 | 140 | 160 | 1 1/8 | M27 |
| 12 | 300 | 520 | 49.3 | 375 | 323.8 | 381 | 2 | 450.8 | As Required | 16 | 1 1/8 | 145 | 170 | 1 1/4 | M30 |
| 14 | 350 | 585 | 52.4 | 425 | 355.6 | 412.8 | 2 | 514.4 | As Required | 20 | 1 1/8 | 160 | 180 | 1 1/4 | M30 |
| 16 | 400 | 650 | 55.6 | 483 | 406.4 | 469.9 | 2 | 571.5 | As Required | 20 | 1 1/4 | 165 | 190 | 1 3/8 | M33 |
| 18 | 450 | 710 | 58.8 | 533 | 457 | 533.4 | 2 | 628.6 | As Required | 24 | 1 1/4 | 170 | 195 | 1 3/8 | M33 |
| 20 | 500 | 775 | 62 | 587 | 508 | 584.2 | 2 | 685.8 | As Required | 24 | 1 1/4 | 185 | 205 | 1 3/8 | M33 |
| 24 | 600 | 915 | 68.3 | 702 | 610 | 692.2 | 2 | 812.8 | As Required | 24 | 1 1/2 | 205 | 230 | 1 5/8 |
Material Selection: The first step in manufacturing titanium flanges involves selecting high-quality titanium alloys, either Grade 2 or Grade 5, based on the application’s specific requirements. Grade 2 is chosen for its excellent corrosion resistance and weldability, while Grade 5 is selected for higher strength demands.
Forming and Machining: The titanium billets are heated to a high temperature and then formed into flange shapes using techniques like forging or casting. Once the shape is formed, the flange undergoes precision machining to achieve the correct dimensions, including the raised face and bolt holes.
Heat Treatment: Both Grade 2 and Grade 5 titanium alloys may undergo heat treatment processes to enhance their mechanical properties. For Grade 5, this typically involves a solution treatment followed by aging to increase strength.
Surface Finishing: The flange surfaces, especially the raised face, are polished to a smooth finish to improve the sealing surface when paired with gaskets. This step is critical to ensuring leak-tight performance and meeting the required surface finish standards.
Inspection and Testing: Each flange is subjected to rigorous quality control, including visual inspections, dimensional checks, and non-destructive testing such as ultrasonic or X-ray inspection to ensure there are no internal defects. Pressure testing may also be performed to verify the flange’s ability to withstand the specified pressure rating.
The Titanium Grade 2 Long Weld Neck Flange is widely used in a variety of industries where corrosion resistance and strength are crucial. Here are some common applications:
Marine Industry:
Chemical Processing:
Aerospace:
Power Generation:
Medical and Biomedical Applications:
Company Details
Business Type:
Manufacturer
Year Established:
2006
Total Annual:
2000000-4000000
Ecer Certification：
Verified Supplier
Baoji Lihua Non-ferrous Metal Co., Ltd. was established in 2006. The company relies on theadvantages of Baoji industry and its strong technical support. It has been engaged in theproduction and sales of non-ferrous metals such as titanium, tantalum and nickel for many years. The factory covers an a... Baoji Lihua Non-ferrous Metal Co., Ltd. was established in 2006. The company relies on theadvantages of Baoji industry and its strong technical support. It has been engaged in theproduction and sales of non-ferrous metals such as titanium, tantalum and nickel for many years. The factory covers an a...
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