Embark on a journey into the realm of mild steel flanges with Randhir Metal And Alloys Pvt. Ltd., where quality meets precision. Crafted from high-grade mild steel, our Mild Steel Flanges in Mumbai exhibit exceptional features tailored to meet diverse industrial needs. With a compact size of 1/2 inch and adherence to material standards such as ASTM A182 and ANSI B16.5, our mild steel flanges epitomize strength, resilience, and reliability. Embodying durability and versatility, our flanges stand as a testament to excellence in Mumbai and beyond.
In various industries and applications, mild steel flanges play a crucial role in ensuring seamless operations. From construction sites to manufacturing plants, our flanges find versatile applications in connecting piping systems and facilitating fluid flow. They are instrumental in supporting structural frameworks, maintaining pressure vessels, and enabling efficient transportation of fluids and gases. As one of the leading Mild Steel Flanges Manufacturers in Mumbai, we ensure to delivery of the best product to our customers, backed by our commitment to excellence. With their compact size and robust construction, our mild steel flanges provide reliable solutions to meet the demands of modern industrial processes.
Here, we adhere to stringent specifications to deliver mild steel flanges that meet the highest industry standards. Being one of the finest Mild Steel Weld Neck Flange Suppliers in India, we offer the best in class products to our customers. Manufactured with precision and attention to detail, our flanges undergo thorough testing to ensure compliance with ASTM requirements. With a rated pressure ranging from 5 KGS to 16 KGS and a round shape designed for optimal performance, our mild steel flanges guarantee compatibility and reliability in a wide range of applications. Whether it's for low-pressure systems or critical industrial processes, our flanges deliver consistent performance and peace of mind.
Material Specification Of : | Alloy Steel Flanges |
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Standard Cover : | pressure ratings & temperature ratings, materials, marking, dimensions, weight, tolerances, testing |
Contact Faces | RTJ (Ring Type Joint), FF (Flat Face), RF (Raised Face), T/G (Tongue And Groove ), M/F (Male And Female) |
Size Chart | Normal Pipe Size 1/2 to NPS 24" |
Thickness | Normal Pipe Size ≤ 18 |
Bore Diameter | Normal Pipe ≤ 10 |
Flanges Standards | EN 1092-1, JIS, ASME B16.5, ASME B16.47 type A, UNI, DIN |
Pressure Rating | Class 150 To Class 2500 |
High Temperature | Above 200°C (400°F) For Class 150 Or Above 400°C (750°F) |
Low Temperature | Above -29 Degree C (−20°F) |
Common Types Of Flanges: | Slip On (SORF), Weld Neck (WNRF), Blind (BLRF), Lap Joint (Loose), Threaded (NPT), Socket-Weld (SWRF) |
Special Types Of Flanges : | Nipoflange, Elboflange, Latroflange, Swivel Flange, Expanding Flange, Reducing Flange, Weldoflange |
Marking Standard | Name of Manufacturer Schedule Type of Flange Facing Nominal Pipe Size Pressure Class ASME B16 Designation |
Bolt Type | high strength bolts medium strength bolts low strength bolts |
European Standard Flanges | JIS B2220 Flanges (5k to 30k) and KS1503 flanges |
Russian-Standard Flanges | GOST 12820 / 12821-80, DIN, UNI, EN 1092-1 |
South African Standard Flanges | SANSflanges And SABS flanges |
Surface Finish | smooth, concentric serrated, stock |
Gaskets Types | Full Face Gasket Flat Ring Gasket Metallic Ring Gakset |
Advantages Of Pipe Flange | Used to Connect Pipe System Easy Repair Pipe System Assembled Without Welding |
ASTM A105 Carbon Steel Blind Flange Price List | |||||
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TYPE OF FLANGES | SIZE (INCH) | MATERIAL | GRADE | CLASS | PRICE IN INDIA (INR) |
BLIND FLANGES | 3/4" | ALLOY STEEL | ASTM A182 F5 | CLASS 150 | 160.00 |
BLRF | 1" | ALLOY STEEL | ASTM A182 F5 | CLASS 150 | 150.32 |
BLRF | 1-1/2" | ALLOY STEEL | ASTM A182 F5 | CLASS 150 | 210.00 |
BLRF | 2" | ALLOY STEEL | ASTM A182 F5 | CLASS 150 | 300.00 |
BLRF | 3" | ALLOY STEEL | ASTM A182 F11 | CLASS 150 | 379.76 |
SLIP ON FLANGES | 2" | ASTM A182 F11 | ALLOY STEEL | CLASS 150 | 240.34 |
SORF | 3" | ASTM A182 F11 | ALLOY STEEL | CLASS 150 | 406.34 |
SORF | 10" | ASTM A182 F11 | ALLOY STEEL | CLASS 150 | 4500.34 |
WELD NECK FLANGES | 2" X SCH STD | ASTM A182 F22 | ALLOY STEEL | CLASS 150 | 400.00 |
WNRF | 3" X SCH STD | ASTM A182 F22 | ALLOY STEEL | CLASS 150 | 665.00 |
WNRF | 4" X SCH STD | ASTM A182 F22 | ALLOY STEEL | CLASS 150 | 799.00 |
WNRF | 6" X SCH STD | ASTM A182 F22 | ALLOY STEEL | CLASS 150 | 1505.00 |
SOCKET WELD FLANGES | 3/4" X SCH XS | ASTM A182 F22 | ALLOY STEEL | CLASS 150 | 199.00 |
SWRF | 1" X SCH XS | ASTM A182 F22 | ALLOY STEEL | CLASS 150 | 295.76 |
SWRF | 1-1/2” X SCH XS | ASTM A182 F22 | ALLOY STEEL | CLASS 150 | 480.00 |
ASTM A182 AS Flanges Equivalent Table
Group Of Material | Name | Type Of | UNS Number | Forging Specification | Casting Specification Equivalent | DIN Number | DIN WNR. Number | Application For |
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Alloy Steel | Moly Steel | C-1/2Mo | K12822 | A182-F1 cl2 | A217-WC1 | 15M03 | 1.5415 | Up to 470ºC* (875ºF) |
Chrome Moly | 1.1/4Cr-1/2Mo | K11572 | ASTM A182-F11 cl2 | A217-WC6 | 13CRM044 | 1.7335 | Up to 593ºC (1100ºF) | |
2.1/4Cr-1Mo | K21590 | ASTM A182-F22 cl3 | A217-WC9 | 10CRM0910 | 1.7380 | Up to 593ºC (1100ºF), HP steam | ||
5Cr-1/2Mo | K41545 | ASTM A182-F5/F5a | A217-C5 | 12CRMO195 | 1.7362 | High temp refinery service | ||
9Cr-1Mo | K90941 | ASTM A182-F9 | A217-C12 | X 12 CrMo 9 1 | 1.7386 | High temp erosive refinery service | ||
9Cr-1Mo-V | ASTM A182-F91 | A217-C12A | X 10 CrMoVNb 9 1 | 1.4903 | High pressure steam |
Hight Alloy Steel Flange Pressure Rating Class
ANSI/ASME B16.5 | Alloy Steel Flanges Pressure Rating | ||||||
Temperature °F | Class 150 | Class 300 | Class 400 | Class 600 | Class 900 | Class 1500 | Class 2500 |
-20 to 100 | 265 | 695 | 925 | 1390 | 2085 | 3470 | 5785 |
200 | 260 | 680 | 905 | 1360 | 2035 | 3395 | 5660 |
300 | 230 | 655 | 870 | 1305 | 1955 | 3260 | 5435 |
400 | 200 | 640 | 855 | 1280 | 1920 | 3200 | 5330 |
500 | 170 | 620 | 830 | 1245 | 1865 | 3105 | 5180 |
600 | 140 | 605 | 805 | 1210 | 1815 | 3025 | 5040 |
650 | 125 | 590 | 785 | 1175 | 1765 | 2940 | 4905 |
700 | 110 | 570 | 755 | 1135 | 1705 | 2840 | 4730 |
750 | 95 | 530 | 710 | 1065 | 1595 | 2660 | 4430 |
800 | 80 | 510 | 675 | 1015 | 1525 | 2540 | 4230 |
850 | 65 | 485 | 650 | 975 | 1460 | 2435 | 4060 |
900 | 50 | 450 | 600 | 900 | 1350 | 2245 | 3745 |
950 | 35 | 280 | 375 | 560 | 845 | 1405 | 2345 |
1000 | 20 | 165 | 220 | 330 | 495 | 825 | 1370 |
ASME A182 Alloy Steel Flanges Chemical Composition
Properties Of Element | Low Alloy Steel Flanges | Medium Alloy Steel Flanges | ||
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ASTM A182 F11 Class 2 | ASTM A182 F22 Class 3 | ASTM A182 F5 | ASTM A182 F9 | |
CARBON | 0.10-0.20 | 0.05-0.15 | 0.15 MAXIMUM | 0.15 MAXIMUM |
MANGANESE | 0.30-0.80 | 0.30-0.60 | 0.30-0.60 | 0.30-0.60 |
PHOSPHORUS MAXIMUM | 0.040 | 0.040 | 0.03 | 0.030 |
SULFUR MAXIMUM | 0.040 | 0.040 | 0.03 | 0.030 |
SILICON | 0.50-1.00 | 0.50 MAXIMUM | 0.50 MAXIMUM | 0.50-1.00 |
NICKEL MAXIMUM | – | – | 0.50 | – |
CHROMIUM | 1.00-1.50 | 2.00-2.50 | 4.00-6.00 | 8.0-10.0 |
MOLYBDENUM | 0.44-0.65 | 0.87-1.13 | 0.44-0.65 | 0.90-1.10 |
OPPER MA | – | – | – | – |
COLUMBIUM MAXIMUM | – | – | – | – |
VANDIUM MAXIMUM | – | – | – | – |
TENSILE STRENGTH PSI (MPA) | 70,000 (485) | 75,000 (515) | 70,000 (485) | 85,000 (585) |
YIELD STRENGTH PSI MINIMUM | 40,000 (275) | 45,000 (310) | 40,000 (275) | 55,000 (380) |
ELONGATION 2” % MINIMUM | 20 | 20 | 20 | 20 |
REDUCTION AREA % MINIMUM | 30 | 30 | 35 | 40 |
HARDNESS (HB) MAXIMUM* | 143 ~ 207 | 156 ~ 207 | 143 ~ 217 | 179 ~ 217 |
Alloy Steel Blind Flange Mechanical Properties
Gr. | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
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ASTM/ASME A182 F1 | 275 | 485 | 20 % |
ASTM/ASME A182 F5 | 275 | 485 | 20 % |
ASTM/ASME A182 F9 | 380 | 585 | 20 % |
ASTM/ASME A182 F11 | 205 | 415 | 20 % |
ASTM/ASME A182 F12 | 275 | 485 | 20 % |
ASTM/ASME A182 F22 | 205 | 415 | 20 % |
ASTM/ASME A182 F91 | 380 | 585 | 20 % |
AS 2129 Flanges Tolerance Chart
Alloy Steel Flanges | Tolerance | |
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A | Outside Diameter (O.D.) |
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D | Inside Diameter |
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B | Diameter of contact face |
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J | Diameter of hub at base |
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H | Diameter of hub at point of welding |
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P | Drilling |
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Eccentricity of bolt circle with respect to facing |
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C | Thickness |
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K | Length of hub |
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Alloy Steel Weld Neck Flange Gasket Size Chart
NPS | Gasket I.D. | Gasket O.D. | ||||
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Class 150 | Class 300 | Class 400 | Class 600 | Class 900 | ||
1/2 | 0.84 | 1.875 | 2.125 | 2.125 | 2.125 | 2.50 |
3/4 | 1.06 | 2.25 | 2.625 | 2.625 | 2.625 | 2.75 |
1 | 1.31 | 2.625 | 2.875 | 2.875 | 2.875 | 3.125 |
1 1/4 | 1.66 | 3 | 3.25 | 3.25 | 3.25 | 3.50 |
1 1/2 | 1.91 | 3.375 | 3.75 | 3.75 | 3.75 | 3.875 |
2 | 2.38 | 4.125 | 4.375 | 4.375 | 4.375 | 5.625 |
2 1/2 | 2.88 | 4.875 | 5.125 | 5.125 | 5.125 | 6.50 |
3 | 3.50 | 5.375 | 5.875 | 5.875 | 5.875 | 6.625 |
4 | 4.50 | 6.875 | 7.125 | 7.00 | 7.625 | 8.125 |
5 | 5.56 | 7.75 | 8.50 | 8.375 | 9.50 | 9.75 |
6 | 6.62 | 8.75 | 9.875 | 9.75 | 10.50 | 11.375 |
8 | 8.62 | 11 | 12.125 | 12.00 | 12.625 | 14.125 |
10 | 10.75 | 13.375 | 14.25 | 14.125 | 15.75 | 17.125 |
12 | 12.75 | 16.125 | 16.625 | 16.50 | 18.00 | 19.625 |
Opting for our mild steel flanges offers a multitude of benefits that enhance industrial efficiency and reliability. With their compact size and high-pressure tolerance, our flanges ensure long-lasting performance, minimizing downtime and maintenance costs. Additionally, their versatility and compatibility with different applications provide flexibility in design and installation. Furthermore, our commitment to quality assurance and customer satisfaction ensures that we remain the preferred choice for mild steel flanges in Mumbai and across India. As one of the most reputed Mild Steel Weld Neck Flange Exporters in India, we offer a wide range of products to choose from.
Delve into the realm of stainless steel flanges with Randhir Metal And Alloys Pvt. Ltd., where quality meets precision. Crafted from premium stainless steel, our Stainless Steel Flanges in Mumbai exhibit exceptional features that cater to a multitude of industrial needs. Available in various sizes ranging from 01 inch to >30 inches and adhering to material standards such as ASTM A105, ASTM A182, and ANSI B16.5, our flanges boast durability, reliability, and versatility. With a choice of brown, green, or silver colors and curved, rectangular, or flat shapes, our flanges seamlessly integrate into diverse piping systems, enhancing efficiency and performance.
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Embark on a journey into the realm of super duplex flanges with Randhir Metal And Alloys Pvt. Ltd., where quality meets precision. Crafted from top-grade materials and adhering to ASTM A105, ASTM A182, ASTM A351, and ANSI B16.5 standards, our Super Duplex Flanges in Mumbai exhibit exceptional features tailored to meet diverse industrial needs. With a variety of sizes ranging from 01 inch to >30 inches and a bright surface finish, our super duplex steel flanges stand as a symbol of strength, resilience, and reliability. Embodying durability and versatility, our flanges stand as a testament to excellence in Mumbai and beyond.
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