Based in Midland, UK, Hudson Flanges is a leading manufacturer and supplier specializing in thin carbon steel flanges. Renowned for their strength, durability and precision engineering, Hudson flanges meet the high demand of oil, gas, petrochemical, manufacturing and other industries With a focus on quality and performance, they have developed Hudson flanges to withstand high pressures and temperatures, and provide a reliable, high quality solution -It will be an important choice for industrial applications both domestically and internationally
Carbon steel flat flanges are made of basic steel with carbon content ranging from 0.05% to 2.0%, increasing their hardness and tensile strength Mechanical properties include durability, good tensile strength, good shock and vibration resistance , making them suitable for high-pressure environments These flanges can withstand extreme temperatures, providing long service life. Advantages include cost savings, ease of construction and compatibility with a variety of pipelines, making it ideal for the oil, gas, petrochemical and heavy machinery industries.
Specification | ASTM A694 / ASME SA694 |
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Size Chart | 1/2″ (15 NB) to 48″ (1200NB) DN10~DN5000 |
Standards | 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 ANSI | Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS |
Pressure Calculation in DIN | 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64 |
UNI | 6Bar 10Bar 16Bar 25Bar 40Bar |
EN | 6Bar 10Bar 16Bar 25Bar 40Bar |
Coating | Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized |
Test Certificates | EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc |
Production Technique | Forged, Heat treated and machined |
Connect Type/ Flange 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 |
Special design | As per your drawing AS, ANSI, BS, DIN and JIS |
Test | Direct-reading Spectrograph, Hydrostatic testing machine, X-ray detector, UI trasonic flaw detector, Magnetic particle detector |
Equipment | Press machine, Bending machine, Pushing Machine, electric bevelling machine, Sand-blasting machine etc |
Manufacturer of | ANSI DIN, GOST, JIS, UNI, BS, AS2129, AWWA, EN, SABS, NFE etc. B.S: BS4504 , BS3293, BS1560, BS10 The other standard: AWWA C207; EN1092-1, GOST12820, JIS B2220; KS B1503, SABS1123; NFE29203; UNI2276 |
Grades | Carbon Steel A105, LF2, IS2062, A36, F42, F52, F56, F60, F65, F70, F80 |
Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2, Test Certificates certifying NACE MR0103, NACE MR0175 |
Hudson Flanges, a leading supplier in Midland, UK, offers an extensive selection of Carbon Steel Flat Flanges, including weld neck flanges, slip-on flanges, blind flanges, threaded flanges, and lap joint flanges. Designed for diverse industrial applications, our high-quality inventory and commitment to exceptional service make us a trusted choice for flange products in the region.
Carbon steel flat flanges are widely used in piping systems to safely join pipes, valves and other equipment. Their flat surfaces ensure even pressure distribution, making them ideal for applications that require reduced leakage. Commonly found in industries such as oil, gas, petrochemicals and water treatment, these flanges are valued for their durability, corrosion resistance and temperature resistance Easy to install and maintain, and provide suitable for applications that require frequent disassembly or reassembly in order to clean, inspect or repair occur.
Size in In | Size in Millimeter | (OD) Outer Diameter | Flange Thick. | Hub OD | Weld Neck Outer Diameter | Welding Neck Length | Bore | RF Diameter | RF Height | PCD | Weld Face |
A | B | C | D | E | F | G | H | I | J | ||
1/2 | 15 | 95 | 12.7 | 38 | 21.3 | 51 | Refer Note | 34.9 | 2 | 66.7 | 1.6 |
3/4 | 20 | 115 | 14.3 | 48 | 26.7 | 56 | 42.9 | 2 | 82.6 | 1.6 | |
1 | 25 | 125 | 15.9 | 54 | 33.4 | 60 | 50.8 | 2 | 88.9 | 1.6 | |
1 1/4 | 32 | 135 | 17.5 | 64 | 42.2 | 64 | 63.5 | 2 | 98.4 | 1.6 | |
1 1/2 | 40 | 155 | 19.1 | 70 | 48.3 | 67 | 73 | 2 | 114.3 | 1.6 | |
2 | 50 | 165 | 20.7 | 84 | 60.3 | 68 | 92.1 | 2 | 127 | 1.6 | |
2 1/2 | 65 | 190 | 23.9 | 100 | 73 | 75 | 104.8 | 2 | 149.2 | 1.6 | |
3 | 80 | 210 | 27 | 117 | 88.9 | 78 | 127 | 2 | 168.3 | 1.6 | |
3 1/2 | 90 | 230 | 28.6 | 133 | 101.6 | 79 | 139.7 | 2 | 184.2 | 1.6 | |
4 | 100 | 255 | 30.2 | 146 | 114.3 | 84 | 157.2 | 2 | 200 | 1.6 | |
5 | 125 | 280 | 33.4 | 178 | 141.3 | 97 | 185.7 | 2 | 235 | 1.6 | |
6 | 150 | 320 | 35 | 206 | 168.3 | 97 | 215.9 | 2 | 269.9 | 1.6 | |
8 | 200 | 380 | 39.7 | 260 | 219.1 | 110 | 269.9 | 2 | 330.2 | 1.6 | |
10 | 250 | 445 | 46.1 | 321 | 273 | 116 | 323.8 | 2 | 387.4 | 1.6 | |
12 | 300 | 520 | 49.3 | 375 | 323.8 | 129 | 381 | 2 | 450.8 | 1.6 | |
14 | 350 | 585 | 52.4 | 425 | 355.6 | 141 | 412.8 | 2 | 514.4 | 1.6 | |
16 | 400 | 650 | 55.6 | 483 | 406.4 | 144 | 469.9 | 2 | 571.5 | 1.6 | |
18 | 450 | 710 | 58.8 | 533 | 457 | 157 | 533.4 | 2 | 628.6 | 1.6 | |
20 | 500 | 775 | 62 | 587 | 508 | 160 | 584.2 | 2 | 685.8 | 1.6 | |
24 | 600 | 915 | 68.3 | 702 | 610 | 167 | 692.2 | 2 | 812.8 | 1.6 |
Welding Neck Flange Bores (in inch) | ||||||||||||||
NPS | O D | Sch 10 | Sch 20 | Sch 30 | Std. Wall | Sch 40 | Sch 60 | Extra Strong | Sch 80 | Sch 100 | Sch 120 | Sch 140 | Sch 160 | Double Extra Strong |
1/2” | 0.840 | 0.674 | 0.622 | 0.622 | 0.546 | 0.546 | 0.464 | 0.252 | ||||||
3/4” | 1.050 | 0.884 | 0.824 | 0.824 | 0.742 | 0.742 | 0.612 | 0.434 | ||||||
1” | 1.315 | 1.097 | 1.049 | 1.049 | 0.957 | 0.957 | 0.815 | 0.599 | ||||||
1.1/4” | 1.660 | 1.442 | 1.380 | 1.380 | 1.278 | 1.278 | 1.160 | 0.896 | ||||||
1.1/2” | 1.900 | 1.682 | 1.610 | 1.610 | 1.500 | 1.500 | 1.338 | 1.100 | ||||||
2” | 2.375 | 2.157 | 2.067 | 2.067 | 1.939 | 1.939 | 1.687 | 1.503 | ||||||
2.1/2” | 2.875 | 2.635 | 2.469 | 2.469 | 2.323 | 2.323 | 2.125 | 1.771 | ||||||
3” | 3.500 | 3.260 | 3.068 | 3.068 | 2.900 | 2.900 | 2.624 | 2.300 | ||||||
3-1/2” | 4.000 | 3.760 | 3.548 | 3.548 | 3.364 | 3.364 | 2.728 | |||||||
4” | 4.500 | 4.260 | 4.026 | 4.026 | 3.826 | 3.826 | 3.624 | 3.438 | 3.152 | |||||
5” | 5.563 | 5.295 | 5.047 | 5.047 | 4.813 | 4.813 | 4.563 | 4.313 | 4.063 | |||||
6” | 6.625 | 6.357 | 6.065 | 6.065 | 5.761 | 5.761 | 5.501 | 5.187 | 4.897 | |||||
8” | 8.625 | 8.329 | 8.125 | 8.071 | 7.981 | 7.981 | 7.813 | 7.625 | 7.625 | 7.437 | 7.187 | 7.001 | 6.813 | 6.875 |
10” | 10.750 | 10.420 | 10.250 | 10.136 | 10.020 | 10.020 | 9.750 | 9.750 | 9.562 | 9.312 | 9.062 | 8.750 | 8.500 | 8.750 |
12” | 12.750 | 12.390 | 12.250 | 12.090 | 12.000 | 11.938 | 11.626 | 11.750 | 11.374 | 11.062 | 10.750 | 10.500 | 10.126 | 10.750 |
14” | 14.000 | 13.500 | 13.376 | 13.250 | 13.250 | 13.124 | 12.812 | 13.000 | 12.500 | 12.124 | 11.814 | 11.500 | 11.188 | |
16” | 16.000 | 15.500 | 15.376 | 15.250 | 15.250 | 15.000 | 14.688 | 15.000 | 14.312 | 13.938 | 13.564 | 13.124 | 12.812 | |
18” | 18.000 | 17.500 | 17.376 | 17.124 | 17.250 | 16.876 | 16.500 | 17.000 | 16.124 | 15.688 | 15.250 | 14.876 | 14.438 | |
20” | 20.000 | 19.500 | 19.250 | 19.000 | 19.250 | 18.812 | 18.376 | 19.000 | 17.938 | 17.438 | 17.000 | 16.500 | 16.062 | |
24” | 24.000 | 23.500 | 23.250 | 22.876 | 23.250 | 22.624 | 22.062 | 23.000 | 21.562 | 20.938 | 20.376 | 19.876 | 19.312 | |
30” | 30.000 | 29.376 | 29.000 | 28.750 | 29.250 | 29.000 | ||||||||
36” | 36.000 | 35.376 | 35.000 | 34.750 | 35.250 | 34.500 | 35.000 | |||||||
42” | 42.000 | 41.250 | 41.000 |
Yes, we offer custom sizes for Carbon Steel Flat Flanges to meet specific project needs. Our team at Hudson Flanges is committed to providing tailored solutions for all your requirements. For more details, contact us at sales@hudsonflanges.co.uk.
We are renowned for delivering products with precise, accurate dimensions. Each product undergoes thorough testing, both destructive and non-destructive, to ensure quality before being shipped to our customers.
Our team is ready to assist you. Contact us for any queries or personalized solutions.
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