Based in Midland, UK, Hudson Flanges is a leading manufacturer of high quality flanges for various industrial applications. Specializing in custom and standard flange solutions, we offer a wide range of products, including large durable alloy 20 lap joint flanges. Known for their exceptional corrosion resistance and strength, these flanges are ideal for use in demanding applications such as chemicals and petrochemicals Hudson Flanges is committed to providing reliable, high-quality products with customers excellent service and fast delivery will be provided.
Alloy 20 The lap joint flange is made of high corrosion resistant steel containing nickel (34-38%), chromium (19-21%), molybdenum (2-3%) and copper (3-4%) formulated by sulfuric acid, Provides excellent resistance to nitric acid and other environmental corrosive agents. Mechanical properties include 50,000-70,000 psi tensile strength, 25,000 psi yield strength, and 35% elongation. Advantages of Alloy 20 lap joint flanges include corrosion resistance, high strength, excellent weldability, and pitting and cracking resistance, making them ideal for harsh chemical applications.
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 (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. BS Flange, EN Flange, API 6A Flange, ANSI Flange, ASME Flange, DIN Flange, EN1092-1 Flange, UNI Flange, JIS/ KS Flange, BS4504 Flange, GB Flange, AWWA C207 Flange, GOST Flange, PSI Flange 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 FAlloy 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 Lap Joint 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 lap joint flanges are widely used in applications requiring resistance to aggressive environments, especially in the chemical, petrochemical and pharmaceutical industries and are ideal for applications surrounded by high levels of sulfuric acid, nitric acid and chloride including the environment. Typical applications include pipelines, heat exchangers, reactor vessels, and valves in industries such as food processing, power generation, and marine. Flanges are also used in pumps and compressors, providing excellent resistance to pitting, crevice corrosion and stress corrosion cracking, ensuring durability and long service life in critical applications.
STANDARD | WERKSTOFF NR. | UNS | AFNOR | EN |
Alloy 20 | 2.4660 | N08020 | Z2NCUD31-20AZ | NiCr20CuMo |
ASME/ANSI B 16.5 | Lap Joint Flange |
PRESSURE CLASS | 150, 300, 400, 600, 900, 1500, 2500 |
ASME/ANSI B 16.47 | Blind Flange [Series A & B],Lap Joint Flange |
PRESSURE CLASS | 75, 150, 300, 400, 600, 900 |
ASME/ANSI B 16.36 | Lap Joint 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 Lap Joint 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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