ZIZI ENGEERING CO LTD is a professional supplier for Hastelloy C22 forged flange. We are well known forged flange manufacturer and supplier in China. We produce different types of forged steel flange. Hastelloy C22 forged flanges are one of our main products. Our products are of superior quality and we supply to a wide variety of customer requirements.
What is Hastelloy C22 Material
Hastelloy is an alloy of nickel and molybdenum. It is available in several grades, many of which are nickel chromium molybdenum alloys. Hastelloy C22 is one of the Hastelloy steel grade.
Hastelloy C-22 is identified by the Unified Numbering System (UNS) designation of N06022. It is a nickel based alloy with high nickel (56%), chromium (22%), and molybdenum (13%). Werkstoff’s number 2.4602, Inconel ® Alloy 22, VDM ® Alloy 22 and ATI 22™ alloy fall under same UNS number.
Alloy C22 is a nickel-chromium-molybdenum solid solution strengthened super-alloy with a nominal chemical composition of 56% nickel, 22% chromium, and 13% molybdenum, with additions of iron, tungsten, and cobalt. It is commonly referred to by the tradename Hastelloy C22 and the universal designation UNS N06022. C22 has excellent corrosion and oxidation resistance, great mechanical properties over a wide range of temperatures, and good fabrication properties.
Hastelloy C22 (UNS N06022) is the most versatile nickel-chromium-molybdenum-tungsten alloy available today. With improved resistance to both uniform and localized corrosion, it will outperform other nickel alloys such as C-276, C-4, Alloy 20, and Alloy 625 in applications using a variety of mixed industrial chemicals.
The composition of Hastelloy C-22 has many benefits that help enhance resistance to pitting, crevice corrosion, and stress corrosion cracking. It
has excellent resistance to oxidizing aqueous media, including wet chlorine, mixtures containing nitric acid, and oxidizing acids with chlorine ions.
PRODUCT FORMS AND MATERIAL STANDARDS
| ALLOY FORM | C-22 ASME | C-22 ASTM |
| Plate,Sheet,and Strip | SB575 | B575 |
| Rod,Bar,and Wire | SB574 | B574 |
| Welded Pipe | SB619 | B619 |
| Welded Tubing (General Applications) | SB626 | B626 |
| Seamless Pipe and Tubing | SB622 | B622 |
| Forged Pipe Flanges,Fittings,and Valves | SB462 | B462 |
| Wrought Nickel Alloy Welded Fittings | SB366 | B366 |
| Nickel Alloy Forgings | SB564 | B564 |
| Castings | SA494 CX2MW UNS N26022 | A494 |
| Bare Welded Rods and Wire | ERNiCrMo-10 UNS NO6022 |
Material Properties of Hastelloy C22 Forged Flange
Nickel is one of the main elements in Hastelloy C22 alloy, which gives the alloy good toughness, workability and corrosion resistance. Nickel can form a passivation film on the alloy surface to prevent corrosive media from further eroding the metal matrix.
Chromium content is between 20 – 22.5%. Chromium is an important alloying element that forms a dense protective film of chromium oxide (Cr₂O₃) on the surface of the alloy.
Molybdenum content is 12.5 – 14.5%. The addition of molybdenum significantly improves the corrosion resistance of the alloy to reducing media. Molybdenum increases the strength and hardness of the alloy, helping to enhance the structural stability of Hastelloy C22 flat weld flanges when under pressure.
Tungsten content is approximately 2.5 – 3.5%. Tungsten helps improve the alloy’s high-temperature strength and corrosion resistance.
This allows Hastelloy C22 slip on flange to withstand high pressure and corrosion in high-temperature chemical processes or other high-temperature application scenarios without easily deforming or corroding damage.
Chemical Composition of ASTM B564 UNS N06022 Forged Flange
| CHEMICAL | LIMITS | Ni | Fe | Mn | C | Si | S | Cr | Mo | P | W | Co | V |
| Hastelloy C22(UNS N06022) | MIN | Balance | 2.00 | 20.00 | 12.50 | 2.50 | |||||||
| MAX | 6.00 | 0.50 | 0.015 | 0.08 | 0.02 | 22.50 | 14.50 | 0.02 | 3.50 | 2.50 | 0.35 |
Mechanical Properties of Hastelloy C22 Forged Flange
| MATERIAL | T.S (MPA) | Y.S (MPA) | EL % |
| Hastelloy C22(UNS N06022) | 690 min | 310 min | 45 min |
The tensile strength of Hastelloy C22 slip on flange is between 690 and 825MPa. The tensile strength is the maximum stress that the material can withstand during the stretching process. The higher tensile strength enables Hastelloy C22 slip on flange to withstand greater tensile forces.
Specification of UNS N06022 Forged Flange
| Size Chart | 1/2″(15 NB)to 60″(1200NB) |
| 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 | Class 150 LBS,300 LBS,600 LBS,900 LBS,1500 LBS,2500 LBS |
| Pressure Calculation inDIN | 6Bar 10Bar 16Bar 25Bar 40Bar/PN6 PN10 PN16 PN25 PN40,PN64 |
| UNI | 6Bar 10Bar 16Bar 25Bar40Bar |
| EN | 6Bar 10Bar 16Bar 25Bar 40Bar |
| Coating | Oil Black Paint,Anti-rust Paint,Zinc Plated,Yellow Transparent,Cold and Hot Dip Galvanized |
| types | Forged/Threaded/Screwed/Plate |
| 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 | Asper your drawing AS,ANSI,BS,DIN and JIS 15 NB (1/2″)to 200 NB(8″) Equal and Reducing Configurations |
| Test | Direct-reading Spectrograph,Hydrostatic testing machine,X-ray detector,UI trasonic flaw detector,Magneticparticle detector |
| Equipment | Press machine,Bendingmachine,Pushing Machine,electric bevelling machine,Sand- blasting machine etc |
| Manufacturer | 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 AS 2129:Table D;Table E;Table H ANSI B16.5,ANSI B16.47 Series A&B,MSS SP44,ASA,API-605,AWWA,Custom Drawings ANSI:ANSI B16.5,ANSI B16.47(API605),MSS SP44,ANSI B16.36,ANSI B16.48 ANSI B16.5,ANSI B16.47,MSS SP44,ANSI B16.36,ANSI B16.48 American standard(ANSI) German(DIN) British standard(BS) 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 B564 F316 Stainless Steel Flanges The other standard:AWWA C207;EN1092-1,GOST12820,JIS B2220;KS B1503,SABS1123; NFE29203;UNI2276 |
Types of Steel Flange
There are many standards for steel flange production, such as American standard, European standard, Japanese standard, German standard, etc. Common standards include the following:
ASME B16.5 Forged Steel Flange
Size Range:1/2”-24”
Pressure Range:Class 150,300,400,600,900,1500,2500
Types: Weld Neck Flange; Slip On Flange; Socket Weld Flange; Threaded Flange; Lap Joint Flange; Blind Flange.
ASME B16.47A/B Hastelloy C22 WN & BL Flange
Size Range:26”-60”
Pressure Range:Class 75,150,300,400,600,900
Types: Weld Neck Flange and Blind Flange.
JIS B2220 UNS N06022 Flange
Size Range:DN10-DN1500
Pressure Range:5K,10K,16K,20K,30K,40K,63K
DIN 2527 Blind Flange
Size Range:DN10-500
Pressure Range:PN6-PN100
EN1092-1 Hastelloy C22 Alloy Steel Flange
Size Range:DN10-4000
Pressure Range:PN2.5-PN400
Types: Type01/05/11 etc.
| Design | According to EN Type |
| Weld Neck Flange | Type 11 |
| Blind Flange | Type 05 |
| Threaded Flange | Type 12 |
| Slip on Flange | Type 01 |
| Lapp Joint Flange | Type 02 & Type 04 |
ZIZI ENGEERING CO LTD is professional and experience in servicing and producing all types of forged flanges. Our advanced production equipment and large stock are the reasons why we are the top of flange supplier.
Hastelloy C22 Forged Flanges Manufacturing Process
ASME B16.5 Forged Flange Dimension
ASME B16.5 is the standard specification for pipe flanges and flanged fittings sized from NPS 1/2 (DN 15) to NPS 24 (DN 600). It is the most widely used flange standard in piping industry.
ASME B16.5 flanges has seven rating classes: Class 150, Class 300, Class 400, Class 600, Class 900, Class 1500, Class 2500. Size range from NPS 1/2 [DN 15] to NPS 24 [DN 600] .The flange types include weld neck(WN), slip on (SO), threaded (THD), socket welding (SW), lap joint (LPJ), blind (BL), long weld neck (LWN), and reducing flange. The end flange facings can be furnished as raised face (RF), ring joint face (RTJ), flat face (FF), large or small male/female face, small male/female face, large or small tongue face, and large or small groove face. Among all of the facings, raised face (RF) and ring joint face (RTJ) are most commonly used.
Dimension of Class 150 UNS N06022 WN Flange Chart
| Nominal Pipe Size | A | B | C | D | E | F | G | H | I | J | Weight | |
| inch | mm | mm | mm | mm | mm | mm | mm | mm | Holes | mm | mm | kg / piece |
| 1/2 | 21.30 | 88.90 | 15.70 | 11.20 | 47.80 | 21.30 | 30.20 | 35.00 | 4 | 15.70 | 60.45 | 0.48 |
| 3/4 | 26.70 | 98.60 | 20.80 | 12.70 | 52.30 | 26.70 | 38.10 | 42.90 | 4 | 15.70 | 69.85 | 0.71 |
| 1 | 33.40 | 108.0 | 26.70 | 14.20 | 55.60 | 33.50 | 49.30 | 50.80 | 4 | 15.70 | 79.25 | 1.01 |
| 11/4 | 42.20 | 117.3 | 35.10 | 15.70 | 57.15 | 42.20 | 58.70 | 63.50 | 4 | 15.70 | 88.90 | 1.33 |
| 11/2 | 48.30 | 127.0 | 40.90 | 17.50 | 62.00 | 48.30 | 65.00 | 73.15 | 4 | 15.70 | 98.60 | 1.72 |
| 2 | 60.30 | 152.4 | 52.60 | 19.10 | 63.50 | 60.45 | 77.70 | 91.90 | 4 | 19.10 | 120.7 | 2.58 |
| 21/2 | 73.00 | 177.8 | 62.70 | 22.40 | 69.85 | 73. 15 | 90.4 | 104.6 | 4 | 19.10 | 139.7 | 4.11 |
| 3 | 88.90 | 190.5 | 78.00 | 23.90 | 69.85 | 88.90 | 108.0 | 127.0 | 4 | 19.10 | 152.4 | 4.92 |
| 31/2 | 101.6 | 215.9 | 90.20 | 23.90 | 71.40 | 101.6 | 122.2 | 139.7 | 8 | 19.10 | 177.8 | 6.08 |
| 4 | 114.3 | 228.6 | 102.40 | 23.90 | 76.20 | 114.3 | 134.9 | 157.2 | 8 | 19.10 | 190.5 | 6.84 |
| 5 | 141.3 | 254.0 | 128.3 | 23.90 | 88.90 | 141.2 | 163.6 | 185.7 | 8 | 22.40 | 215.9 | 8.56 |
| 6 | 168.3 | 279.4 | 154.2 | 25.40 | 88.90 | 168.4 | 192.0 | 215.9 | 8 | 22.40 | 241.3 | 10.6 |
| 8 | 219.1 | 342.9 | 202.7 | 28.40 | 101.6 | 219.2 | 246.1 | 269.7 | 8 | 22.40 | 298.5 | 17.6 |
| 10 | 273.0 | 406.4 | 254.5 | 30.20 | 101.6 | 273.0 | 304.8 | 323.8 | 12 | 25.40 | 362.0 | 24.0 |
| 12 | 323.8 | 482.6 | 304.8 | 31.75 | 114.3 | 323.8 | 365.3 | 381.0 | 12 | 25.40 | 431.8 | 36.5 |
| 14 | 355.6 | 533.4 | To be specified by the Purchaser | 35.10 | 127.0 | 355.6 | 400.1 | 412.7 | 12 | 28.40 | 476.3 | 48.4 |
| 16 | 406.4 | 596.9 | 36.60 | 127.0 | 406.4 | 475.2 | 469.9 | 16 | 28.40 | 539.8 | 60.6 | |
| 18 | 457.2 | 635.0 | 39.60 | 139.7 | 457.2 | 505.0 | 533.4 | 16 | 31.75 | 577.9 | 68.3 | |
| 20 | 508.0 | 698.5 | 42.90 | 144.5 | 508.0 | 558.8 | 584.2 | 20 | 31.75 | 635.0 | 84.5 | |
| 24 | 609.6 | 812.8 | 47.80 | 152.4 | 609.6 | 663.4 | 692.1 | 20 | 35.10 | 749.3 | 115 | |
Dimension of Class 300 SO Hastelloy C22 Forged Flange Chart
| Nominal Pipe Size | A | B | C | D | F | G | H | I | J | Weight | |
| inch | mm | mm | mm | mm | mm | mm | mm | Holes | mm | mm | kg / piece |
| 1/2 | 21.3 | 95.2 | 22.4 | 14.2 | 22.4 | 38.1 | 35.1 | 4 | 15.7 | 66.55 | 0.64 |
| 3/4 | 26.7 | 27.7 | 15.7 | 25.4 | 47.7 | 42.9 | 4 | 19.1 | 82.5 | 1. 12 | |
| 1 | 33.4 | 123.9 | 34.5 | 17.5 | 26.9 | 53.8 | 50.8 | 4 | 19.1 | 88.9 | 1.36 |
| 11/4 | 42.2 | 133.3 | 43.2 | 19 | 26.9 | 63.5 | 63.5 | 4 | 19.1 | 98.6 | 1.68 |
| 11/2 | 48.3 | 155.4 | 49.5 | 20.6 | 30.2 | 69.85 | 73.15 | 4 | 22.4 | 4.500 114.3 | 2.49 |
| 2 | 60.3 | 165.1 | 62 | 22.3 | 33.2 | 84 | 91.9 | 8 | 19.1 | 127 | 2.87 |
| 21/2 | 73 | 190.5 | 74.7 | 25.4 | 38.1 | 100 | 104.6 | 8 | 22.4 | 149.4 | 4.32 |
| 3 | 88.9 | 209.5 | 90.7 | 28.4 | 42.9 | 117.3 | 127 | 8 | 22.4 | 168.1 | 5.85 |
| 31/2 | 101.6 | 228.6 | 103.4 | 30.2 | 44.4 | 133.3 | 139.7 | 8 | 22.4 | 184.2 | 7.34 |
| 4 | 114.3 | 254 | 116.1 | 31.7 | 47.7 | 146 | 157.2 | 8 | 22.4 | 200.1 | 9.61 |
| 5 | 141.3 | 279.4 | 143.8 | 35 | 50.8 | 177.8 | 185.7 | 8 | 22.4 | 234.9 | 12.3 |
| 6 | 168.3 | 317.5 | 170.7 | 36.5 | 52.3 | 206.2 | 215.9 | 12 | 22.4 | 269.7 | 15.6 |
| 8 | 219. 1 | 381 | 221.5 | 41.1 | 61.9 | 260.3 | 269.7 | 12 | 25.4 | 330.2 | 24.2 |
| 10 | 273 | 444.5 | 276.3 | 47.7 | 66.55 | 320.5 | 323.9 | 16 | 28.4 | 387.3 | 34.1 |
| 12 | 323.8 | 520.7 | 327.1 | 50.8 | 73.15 | 374.6 | 381 | 16 | 31.7 | 450.8 | 49.8 |
| 14 | 355.6 | 584.2 | 359.1 | 53.8 | 76.2 | 425.4 | 412.8 | 20 | 31.7 | 514.4 | 69.9 |
| 16 | 406.4 | 647.7 | 410.5 | 57.15 | 82.5 | 482.6 | 469.9 | 20 | 35 | 571.5 | 88.1 |
| 18 | 457.2 | 711.2 | 461.8 | 60.45 | 88.9 | 533.4 | 533.4 | 24 | 35 | 628.7 | 109 |
| 20 | 508 | 774.7 | 513.1 | 63.5 | 95.2 | 587.2 | 584.2 | 24 | 35 | 685.8 | 134 |
| 24 | 609.6 | 914.4 | 616 | 69.85 | 106.4 | 701.5 | 692.2 | 24 | 41 | 812.8 | 201 |
Dimension of Class 600 Blind Flange Chart
| Nominal Pipe Size | A | C | G | H | I | J | Weight | |
| inch | mm | mm | mm | mm | Holes | mm | mm | kg / piece |
| 1/2 | 21.3 | 95.2 | 14.2 | 35.1 | 4 | 15.7 | 66.55 | 0.76 |
| 3/4 | 26.7 | 117.3 | 15.7 | 42.9 | 4 | 19. 10 | 82.6 | 1.28 |
| 1 | 33.4 | 123.9 | 17.5 | 50.8 | 4 | 19. 10 | 88.9 | 1.60 |
| 11/4 | 42.2 | 133.3 | 20.6 | 63.5 | 4 | 19. 10 | 98.6 | 2.23 |
| 11/2 | 48.3 | 155.4 | 22.3 | 73.15 | 4 | 22.4 | 114.3 | 3.25 |
| 2 | 60.3 | 165. 1 | 25.4 | 91.9 | 8 | 19. 10 | 127 | 4.15 |
| 21/2 | 73 | 190.5 | 28.4 | 104.6 | 8 | 22.4 | 149.4 | 6.13 |
| 3 | 88.9 | 209.5 | 31.7 | 127 | 8 | 22.4 | 168.1 | 8.44 |
| 31/2 | 101.6 | 228.6 | 35 | 139.7 | 8 | 25.4 | 184.2 | 11.0 |
| 4 | 114.3 | 273. 1 | 38.1 | 157.2 | 8 | 25.4 | 215.9 | 17.3 |
| 5 | 141.3 | 330.2 | 44.5 | 185.7 | 8 | 28.4 | 266.7 | 29.4 |
| 6 | 168.3 | 355.6 | 47.8 | 215.9 | 12 | 28.4 | 292.1 | 36.1 |
| 8 | 219. 1 | 419. 1 | 55.6 | 269.7 | 12 | 31.75 | 349.3 | 58.9 |
| 10 | 273 | 508 | 63.5 | 323.9 | 16 | 35. 10 | 431.8 | 97.5 |
| 12 | 323.8 | 558.8 | 66.55 | 381 | 20 | 35. 10 | 489 | 124 |
| 14 | 355.6 | 603.3 | 69.85 | 412.8 | 20 | 38. 10 | 527.1 | 151 |
| 16 | 406.4 | 685.8 | 76.2 | 469.9 | 20 | 41. 10 | 603.3 | 214 |
| 18 | 457.2 | 743 | 82.6 | 533.4 | 20 | 44.5 | 654.1 | 272 |
| 20 | 508.0 | 812.8 | 88.9 | 584.2 | 24 | 44.5 | 723.9 | 349 |
| 24 | 609.6 | 939.8 | 101.6 | 692.2 | 24 | 50.8 | 838.2 | 533 |
What is the ASTM equivalent of Hastelloy C22
| STANDARD | WERKSTOFF NR. | UNS | JIS | EN |
| Hastelloy C22 | 2.4602 | N06022 | NW 6022 | NiCr21Mo14W |
What Is the Difference Between Hastelloy & Stainless Steel
There are various types of materials for forged flanges, but when applied to harsh chemical substances or extreme temperature environments, the choice is usually attributed to high-performance alloys such as Hastelloy and stainless steel. Both materials have the characteristics of durability and corrosion resistance, but Hastelloy and stainless steel have different properties that make them stand out in terms of performance, cost, and suitability for specific environments.
Component
Stainless steel is an alloy made of iron, chromium, and nickel elements. Adding these elements enhances the properties of stainless steel, making it resistant to corrosion and oxidation.
Hastelloy is a group of alloys primarily composed of nickel, molybdenum, and chromium. It also contains small amounts of iron, tungsten, cobalt, and carbon.However, unlike stainless steel, the main component of Hastelloy is nickel, which makes it more corrosion-resistant than stainless steel materials in specific environments.
Corrosion resistance
Stainless steel has excellent corrosion resistance and performs well in acidic and alkaline environments. The chromium content forms a protective oxide layer on the surface of stainless steel, enhancing its corrosion resistance.
Due to its higher nickel content than ordinary stainless steel materials, Hastelloy alloy has higher corrosion resistance. This difference makes it suitable for highly corrosive environments such as chemical processing plants and oil drilling platforms.
Strength and durabilit
Stainless steel is a very sturdy material with high tensile strength, making it an ideal choice for load-bearing structures. It also has good ductility, which means you can easily shape it into different shapes without losing strength.
Due to its higher nickel and molybdenum content, Hastelloy alloy has better mechanical properties than stainless steel materials, which makes it more versatile in extreme environments of high temperature and high pressure.
Hastelloy C22 Forged Flange With Spacer Physical Properties
| Property | Value | Unit |
| Density | 8.69 | g/cm3 |
| Melting Point | 1350 – 1400 | °C |
| Thermal Conductivity | 9.7 | W/m·K |
| Specific Heat Capacity | 427 | J/kg·K |
| Electrical Resistivity | 1.29 | µΩ·m |
| Modulus of Elasticity | 205 | GPa |
What is the Specific Heat Capacity of Hastelloy C22 Forged Flange
| Property | Value |
| Specific Heat Capacity (at 25°C) | 0.42 J/g·°C |
| Specific Heat Capacity (at 100°C) | 0.44 J/g·°C |
| Specific Heat Capacity (at 500°C) | 0.47 J/g·°C |
How are Forged Flanges inspected for surface defects
Visual Inspection (VT)
Dye Penetrant Testing (PT)
Magnetic Particle Testing (MT)
Ultrasonic Testing (UT)
Eddy Current Testing (ECT)
X-Ray or Radiographic Testing (RT)
Surface Roughness Measurement
Characteristics
Corrosion Resistance
Alloy C22 is one of the most corrosion-resistant alloys available, even outperforming C276 and 625. It is resistant to almost all reducing and oxidizing environments, including strong oxidizers, seawater, and organic acids. In addition, C22 has excellent resistance to chloride-induced localized corrosion, including pitting, crevice corrosion, and stress corrosion cracking.
Oxidation Resistance
C22 has excellent resistance to oxidation, carburization, and sulfidation at elevated temperatures. However, C22 should not be used at temperatures above 1250°F due to the possible formation of embrittling phases.
Mechanical Properties
C22 is typically provided in the annealed condition with a minimum yield strength of 45 ksi. However, C22 can be cold worked to higher strength levels.
Heat Treatment
C22 is typically annealed at 2050°F (1121°C), followed by rapid cooling.
Workability
C22 can be hot work or cold worked. However, C22 work-hardens rapidly. Therefore, cold working must often be perform in stages with intervening anneals. Parts should be anneal after cold working.
Hastelloy C22 Forged Flange Applications
Hastelloy C22 forged flange serves many different applications in these industry categories:
Chemical Process
Petrochemical
Oil & Gas
Pharmaceutical
Geothermal
Sea Water
Water Desalination
LNG (Liquefied Natural Gas)
Nuclear Power
Solar Power
We are professional in manufacturing and exporting flanges in various materials.
