Hudson Flanges specialize in producing high quality flanges, including Alloy 20 Long Weld Neck Flanges Renowned for accuracy and durability, Hudson Flanges to meet a variety of technical needs, providing excellent properties in harsh environments , especially those prone to damage Alloy 20 Manufactured weldneck flanges are long enough to withstand harsh chemical conditions, making them ideal for applications in industries such as chemical processing, pharmaceuticals and food processing
Alloy 20 RTJ flanges, primarily composed of nickel (32-38%), chromium (19-21%), and molybdenum (2-3%), excel in resisting sulfuric acid and chloride stress corrosion cracking. With a tensile strength of around 550 MPa and yield strength of 240 MPa, they offer robust performance under high-stress applications. Their corrosion resistance and durability make them ideal for harsh environments, particularly in chemical, petrochemical, and pharmaceutical industries. These flanges reduce maintenance costs, offer enhanced longevity, and are suitable for challenging applications requiring superior resistance and stability.
Specification | ASTM B462 / ASME SB462 |
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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 (F), 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 DIN: 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 ASTM B462 Alloy 20 Flanges |
Grades | Alloy 20 |
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 Alloy 20 Long Weld Neck 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.
Alloy 20 Long weld neck flanges are mainly composed of nickel (32-38%), chromium (19-21%), and molybdenum (2-3%), this material and mainly small amounts of copper, iron and niobium corrosion in sulfuric in acid environments -Excellent resistance. Mechanically, they have a tensile strength of 620 MPa and a yield strength of 300 MPa, as well as good ductility. The main advantages are resistance to pitting and stress corrosion cracking, high durability, and suitability for industrial, petrochemical and pharmaceutical applications
STANDARD | WERKSTOFF NR. | UNS | AFNOR | EN |
Alloy 20 | 2.4660 | N08020 | Z2NCUD31-20AZ | NiCr20CuMo |
ASME/ANSI B 16.5 | Long Weld Neck Flange |
PRESSURE CLASS | 150, 300, 400, 600, 900, 1500, 2500 |
ASME/ANSI B 16.47 | Long Weld Neck Flange [Series A & B],Welding Neck Flange |
PRESSURE CLASS | 75, 150, 300, 400, 600, 900 |
ASME/ANSI B 16.36 | Long Weld Neck Flange |
PRESSURE CLASS | 300, 400, 600, 900, 1500, 2500 |
PRESSURE CLASS | PN 2.5 TO PN 40 |
BS 4504[PART 1] | Hubbed Slip-On |
PRESSURE CLASS | PN 2.5 TO PN 400 |
BS 1560 BOSS | Hubbed Slip-On Hubbed Threaded |
PRESSURE CLASS | 150, 300, 400, 600, 900, 1500, 2500 |
BS10 | Plate Slip-On Flange, Slip-On Boss Flange |
TABLE | D, E, F, H |
DIN FLANGES | DIN 2527, 2566, 2573, 2576, 2641,2642, 2655, 2656, 2627, 2628, 2629, 2631, 2632, 2633, 2634, 2635, 2636, 2637,2638, 2673 |
PRESSURE CLASS | PN 6 TO PN 100 |
Yes, we offer custom sizes for Alloy 20 Long Weld Neck 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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