Alloy Steel Flanges
Manufacturer of ASTM A182 Flanges in India , With Immediate Delivery
Alloy Steel Flanges are made up of different alloys that have different material compositions. Their mechanical properties vary with the composition and the dimensions vary with the standards. There are different types of alloys that belong to ASME A182 grades. The grades can range as F5, F9, F11 and so on. The Alloy Steel Blind Flanges are closed ended flanges that end a pipeline. There are different types of blind flanges and shapes for different types of applications. There are also other types such as socket weld flanges, weld neck flanges, SWRF flanges and Alloy Steel Slip On Flange types.
The slip on flanges are one of the most used types for the ease of application and the accuracy in connection point. The flanges range in sizes from ½ inches to 48 inches. The AS Pipe Flange dimensions are specified by the ANSI, ASME, ASTM, DIN and all other international standards. Depending on the need for mechanical properties, the high alloy or low alloy flanges can be used.
The Low Alloy Steel Flange has low amounts of alloying elements where the high alloy flanges have higher amounts of alloying elements; sometimes, commercially pure elements as well. The different production types such as the Alloy Steel Threaded Flange, plate flange, screwed flange and the forged flanges are used in different types of applications. The applications include oil and gas, petroleum, water lines, high temperature services, low temperature services, chemical plants, food production plants, acid processing plants and other industrial applications.
Alloy Steel Flanges
ASTM A182 Flanges
Chrome Moly Flanges
Table of Content
- What Does Alloy Steel Flange ?
- Specifications of Alloy Steel Flanges
- Types of Alloy Steel Flanges
- Alloy Steel Flange Dimension Chart
- Alloy Steel Threaded Flange Weight Chart
- SA182 Alloy Steel SORF Flanges Rating
- ASTM A182 Alloy Steel Flange Wall Thickness
- ASTM A182 Alloy Steel Blind Flanges Chemical Formula
- Alloy Steel Threaded Flange Physical Properties
- Mechanical Behaviour of ASME B16.5 Alloy Steel Flanges
- How Are Alloy Steel Flanges Protected Against Corrosion?
- What is the Difference Between Alloy Steel and Carbon Steel Flanges?
- What Does "Heat-treated" Mean for Alloy Steel Flanges?
- What is the Importance of Flange Face Types in Alloy Steel Flanges?
An alloy steel flange is a pressure-tight flat ring which connects pipes, valves, pumps or other equipment in a piping system. Constructed with the aid of alloy steel, it remains strong, has a deserved reputation for corrosion and couples it with endless durability. It is utilized mainly in elevated stress and temperature environments; it offers appropriate connection and proper transfer of fluids in industries.
Alloy Steel Flanges Supplier in India provides premium-grade fasteners with excellent corrosion resistance
Regal Supplies in Various Countries Like Qatar, Dubai, Oman, Lebanon, Turkey, Malaysia, Belgium, Germany, Netherlands etc
Alloy Steel Blind Flanges & Chromoly Spectacle Blind Flanges Available in size range of 1/2 to 36 inch, Check Specification
Size
- DN15 – DN1500
- NPS: ½ inch - 48 inch
- PN 2.5 – PN 400
Applications
- Defence
- Offshore, Mining
- Water Plants
- Petrochemicals
Features
- Robust
- Sustainable Material
- Lower Weight
- Versatile
Disadvantages
- Expensive
- Maintenance Needed
- Contaminants Sensitive
- Challeges Recycling
Finishing
- Stock finish
- Mirror & Serrated finish
- Smooth finish
- Concentric serrated
- Spiral serrated
- Cold water finish
Testing Methods
- Material inspection
- Hardness test
- PMI test
- Visual inspection
- Tensile test
- Impact test
Surface Coating
- Black Oxide
- Teflon, Xylan, Zinc
- Cadmium, Galvanized
- Others Upon Request
Thickness
- SCH 10/ 20/ 40
- SCH 160/ 180
- SCH 120/ 140
- SCH 60/ 80/ 100
Threads type
- MPT/ BSPT (Female)
- NPT
- BSPP , MNPT
- FPT
- BSP
Packaging Methods
- Carton
- Plastic
- Wooden
Production process
- Plate
- Cast
- Forged
Certification
- Third Party Inspection
- NACE MR0175
- 100% Radiography Test
- MTC BS EN 10204 3.1/ 3.2
Pressure
- Class 125 To 150
- Class 300 To 400
- Class 1500 To 2500
- Class 600 To 900
Standard
- ASME B16.5
- ASME B16.47
- ASME B16.36
- ASME B16.48
Connections
- TH (Threaded)
- Welding (Welded)
Find Equivalent Grades of Chrome Moly Flanges & Alloy DIN 1.5415 Threaded flange With Multiple Types
Ferritic Alloy Steel Forged Flange
IBR Alloy Steel Plate Flange
Low Alloy Steel Blind Flange
Chrome Molybdenum Alloy Steel Weld Neck Flange
AS Slip On Flange
Chromium Alloy Steel Socket Weld Flange
High Temp Alloy Steel Threaded Flange
Alloy Steel Lap Joint Flange
IBR Alloy Steel SORF flange
Intermediate Alloy Steel WNRF Flange
Chromoly Steel Alloy LWNRF flange
Ferritic Alloy Orifice Flange
Chromium Alloy Steel RTJ Flange
High Strength Low Alloy BLRF Flange
Alloy Steel Reducing Flange
Chromium Alloy Steel Raised Face Flange
Refer Dimensions and Weight Chart of Low Alloy Steel Socket Weld Flange
Alloy Steel Flanges Manufacturer in India provides a Range of Dimensions
| Nom Size | OD | OD of RF | Diameter Bevel | WNRF | BLRF | Bolt Length | Bolt Circle | Diameter at Base | Hole Diameter | LTH | WNRF | BLRF |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| O | R | A | C | C | (1) | X | (2) | Y | ||||
| 32 | 45.25 | 36 | 32 | 3.82 | 3.88 | 12.5 | 41.5 | 34.69 | 2 | 8.69 | 1005 | 1795 |
| 44 | 53.25 | 47 | 44 | 4.82 | 4.82 | 14.25 | 49.75 | 45.25 | 1.88 | 8.06 | 1055 | 3079 |
| 42 | 50.75 | 44.75 | 42 | 4.63 | 4.63 | 13.75 | 47.5 | 43.25 | 1.75 | 7.82 | 950 | 2688 |
| 52 | 62.25 | 55.5 | 52 | 5.63 | 5.63 | 16.5 | 58.25 | 53.38 | 2.12 | 9.32 | 1660 | 4906 |
| 34 | 47.5 | 38 | 34 | 3.94 | 4.07 | 13 | 43.5 | 36.88 | 2 | 9.07 | 1145 | 2068 |
| 54 | 65.25 | 57.75 | 54 | 5.94 | 5.94 | 17.5 | 61 | 55.5 | 2.38 | 9.88 | 2050 | 5684 |
| 46 | 55.75 | 49 | 46 | 5 | 5 | 15 | 52 | 47.38 | 2 | 8.44 | 1235 | 3499 |
| 56 | 67.25 | 59.75 | 56 | 6 | 6 | 17.75 | 63 | 57.62 | 2.38 | 10.19 | 2155 | 6098 |
| 28 | 40.75 | 31.5 | 28 | 3.32 | 3.5 | 11.25 | 37 | 30.5 | 1.75 | 7.69 | 745 | 1315 |
| 30 | 43 | 33.75 | 30 | 3.57 | 3.69 | 12 | 39.25 | 32.56 | 1.88 | 8.19 | 870 | 1543 |
| 38 | 46 | 40.5 | 38 | 4.19 | 4.19 | 12.5 | 43 | 39.12 | 1.62 | 7.06 | 695 | 2001 |
| 48 | 57.75 | 51.25 | 48 | 5.19 | 5.19 | 15.25 | 54 | 49.38 | 2 | 8.75 | 1380 | 3896 |
| 58 | 69.25 | 62 | 58 | 6.19 | 6.19 | 18 | 65 | 59.62 | 2.38 | 10.44 | 2270 | 6669 |
| 40 | 48.75 | 42.75 | 40 | 4.44 | 4.44 | 13.25 | 45.5 | 41.25 | 1.75 | 7.56 | 840 | 2380 |
| 50 | 60.25 | 53.5 | 50 | 5.44 | 5.44 | 16 | 56.25 | 51.38 | 2.12 | 9.07 | 1530 | 4442 |
| 60 | 71.25 | 64 | 60 | 6.38 | 6.38 | 18.5 | 67 | 61.62 | 2.38 | 10.69 | 2470 | 7274 |
| CLASS300 lb | ||||||
|---|---|---|---|---|---|---|
| Nominal Pipe Size | Lap Joint | Slip On | Weld Neck | Blind | Socket Weld | Threaded |
| 1 | 3 | 3 | 4 | 4 | 3 | 3 |
| 3 | 14.5 | 13 | 18 | 16 | 13 | 14 |
| 6 | 39 | 39 | 45 | 50 | 39 | 39 |
| 5 | 28 | 29 | 36 | 37 | 28 | 31 |
| 2 | 7 | 7 | 9 | 8 | 7 | 7 |
| 4 | 24 | 23.5 | 26.5 | 28 | 22 | 24 |
| 16 | 234 | 210 | 250 | 315 | 190 | 220 |
| 8 | 58 | 58 | 69 | 81 | 58 | 58 |
| 12 | 140 | 115 | 142 | 185 | 115 | 115 |
| 20 | 375 | 315 | 400 | 515 | 315 | 325 |
| 14 | 190 | 165 | 206 | 250 | 165 | 165 |
| 24 | 550 | 490 | 580 | 800 | 475 | 490 |
| 10 | 91 | 81 | 100 | 124 | 81 | 81 |
| 18 | 305 | 253 | 320 | 414 | 250 | 280 |
| 22 | 435 | 370 | 465 | 640 | 370 | 370 |
Alloy Steel Flanges Manufacturer in India offers rating chart for flanges
| Temp (°F) | 600 | -20 to 100 | 1000 | 200 | 900 | 300 | 800 | 400 | 700 | 500 |
|---|---|---|---|---|---|---|---|---|---|---|
| (Class 600) | 1210 | 1390 | 330 | 1360 | 900 | 1305 | 1015 | 1280 | 1135 | 1245 |
| (Class 150) | 140 | 265 | 20 | 260 | 50 | 230 | 80 | 200 | 110 | 170 |
| (Class 900) | 1815 | 2085 | 495 | 2035 | 1350 | 1955 | 1525 | 1920 | 1705 | 1865 |
| (Class 300) | 605 | 695 | 165 | 680 | 450 | 655 | 510 | 640 | 570 | 620 |
| (Class 2500) | 5040 | 5785 | 1370 | 5660 | 3745 | 5435 | 4230 | 5330 | 4730 | 5180 |
| NPS | ½ | 1 | 1 ¼ | ¾ | 1 ½ | 2 | 3 ½ | 4 | 2 ½ | 3 | 5 | 8 | 10 | 6 | 12 | 16 | 14 | 18 | 20 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Schedule 20 | ... | ... | ... | ... | ... | ... | - | - | ... | - | - | 0.25 | 0.25 | - | 0.25 | 0.312 | 0.312 | 0.312 | 0.375 |
| Schedule 40 | 0.109 | 0.133 | 0.14 | 0.113 | 0.145 | 0.154 | 0.226 | 0.237 | 0.203 | 0.216 | 0.258 | 0.322 | 0.365 | 0.28 | 0.406 | 0.5 | 0.438 | 0.562 | 0.594 |
| Schedule 80 | 0.147 | 0.179 | 0.191 | 0.154 | 0.2 | 0.218 | 0.318 | 0.337 | 0.276 | 0.3 | 0.375 | 0.5 | 0.594 | 0.432 | 0.688 | 0.844 | 0.75 | 0.938 | 1.031 |
Get ASME SA182 Alloy Steel F12 Flanges with Excellent Oxidation Resistance, Check Chemical Composition, Properties
| ALLOY STEEL FLANGES | LOW ALLOY STEEL FLANGES | MEDIUM ALLOY STEEL FLANGES | ||
|---|---|---|---|---|
| ASTM A182 F11 Flange (CL2) | ASTM A182 F22 Flange (CL3) | ASTM A182 F5 Flange | ASTM A182 F9 Flange | |
| MANGANESE | 0.30-0.80 | 0.30-0.60 | 0.30-0.60 | 0.30-0.60 |
| CARBON | 0.10-0.20 | 0.05-0.15 | 0.15 (MAXIMUM) | 0.15 (MAXIMUM) |
| MOLYBDENUM | 0.44-0.65 | 0.87-1.13 | 0.44-0.65 | 0.90-1.10 |
| PHOSPHORUS (MAXIMUM) | 0.04 | 0.04 | 0.03 | 0.03 |
| SULFUR (MAXIMUM) | 0.04 | 0.04 | 0.03 | 0.03 |
| CHROMIUM | 1.00-1.50 | 2.00-2.50 | 4.00-6.00 | 8.0-10.0 |
| SILICON | 0.50-1.00 | 0.50 (MAXIMUM) | 0.50 (MAXIMUM) | 0.50-1.00 |
| NICKEL (MAXIMUM) | – | – | 0.5 | – |
| Property | A182 F5 (Low Alloy Steel) | A182 F11 (Cr-Mo Alloy Steel) | A182 F22 (Cr-Mo Alloy Steel) |
|---|---|---|---|
| Density (g/cm³) | 7.85 | 7.87 | 7.85 |
| Impact Toughness (J) | 40-70 | 40-60 | 50-70 |
| Hardness (HRC) | 30-35 | 20-30 | 20-30 |
| Melting Point (°C) | 1,460 | 1,500 | 1,490 |
| Grade | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
|---|---|---|---|
| F1 | 275 | 485 | 20 % |
| F91 | 380 | 585 | 20 % |
| F5 | 275 | 485 | 20 % |
| F22 | 205 | 415 | 20 % |
| F12 | 275 | 485 | 20 % |
| F9 | 380 | 585 | 20 % |
| F11 | 205 | 415 | 20 % |
- ➤Chromium and Alloying Elements: Enhance corrosion resistance.
- ➤Coatings: Galvanizing, epoxy, or electroplating.
- ➤Passivation: Improves oxide layer protection.
- ➤Corrosion-Resistant Alloys: Stainless steel for better durability.
- ➤Maintenance: Regular cleaning to avoid corrosion.
- ➤Environmental Control: Minimize exposure to harsh conditions.
- ➤Cathodic Protection: Use sacrificial anodes.
- ➤Heat Treatment: Strengthens resistance to corrosion.
| Property | Alloy Steel Flanges | Carbon Steel Flanges |
|---|---|---|
| Composition | Contains alloys like chromium, nickel, molybdenum | Mainly iron and carbon |
| Corrosion Resistance | Higher resistance | Prone to rust |
| Strength and Durability | Stronger and more durable in extreme conditions | Good strength but less durable in harsh environments |
| Cost | More expensive | More affordable |
| Applications | High-performance (aerospace, chemical plants) | General-purpose, less demanding conditions |
| Weldability | May require special welding techniques | Easier to weld |
- ➤Annealing: Softens the material for better ductility.
- ➤Quenching: Rapid cooling to increase hardness and strength.
- ➤Tempering: Reduces brittleness after quenching.
- ➤Normalizing: Refines grain structure for better strength.
| Aspect | Importance |
|---|---|
| Sealing Performance | Affects seal quality (e.g., RF better than FF). |
| Compatibility | Must match gasket type for leak-free joint. |
| Pressure & Temp Resistance | RTJ suits high pressure/temperature. |
| Ease of Installation | FF is easier, RTJ requires careful alignment. |
| Application Suitability | Different types fit various industrial needs. |