Stainless Steel 310 Flanges Manufacturer & Supplier
Stainless steel 310 Flanges are a high-performance austenitic chromium-nickel alloy that is mainly made to perform in high-temperature applications. The flanges are produced as per the specification of ASTM A182 / F310, F310S, and F310H in order to align with the international quality standard. Such flanges are produced using 24-26 % chromium and 19 to 22 % nickel and this gives them oxidation and resistance to corrosion in high-temperature conditions. Amardeep Steel is the trusted manufacturer and supplier of SS 310 Flanges in India and other regions of the globe. The types of these flanges vary and they are weld neck, slip-on, blind, socket weld, threaded and lap joints from NPS 1/2" to 48" in and the classes between 150 LBS to 2500 LBS.
This stainless steel flanges are designed to be used in high temperatures up to 1150 °C (2102 °F) and intermittent service up to 1040°C; hence it can be used in various structures, including furnace components, heat treatment equipment, petrochemical refineries and in high temperature pipelines. UNS S31000 flanges are produced with superior carburization resistance, sulfidation resistance, thermal cycling resistance and high reliability under the most adverse industrial conditions. To ensure compatibility across the globe and to ensure quality, our forged 310 flanges are offered in raised face (RF), flat face (FF) and ring type joint (RTJ) designs to international standards, such as ASME B16.5, ASME B16.47, DIN, EN1092 and BS 4504.
Stainless Steel 310 Flanges Specification
| Category | Specification Details |
|---|---|
| Product Name | Stainless Steel 310 Flanges |
| Grade | ASTM A182 F310, F310S, F310H |
| UNS Number | UNS S31000, UNS S31008 |
| Werkstoff Number | DIN 1.4841, 1.4845 |
| Manufacturing Standards | ASTM A182, ASME SA182, ASME B16.5, ASME B16.47, BS 4504, DIN, EN1092 |
| Pressure Ratings | Class 150, 300, 600, 900, 1500, 2500 LBS / PN6 to PN64 |
| Size Range | 1/2″ to 48″ (DN15 to DN1200) |
| Flange Types | Weld Neck, Slip On, Blind, Socket Weld, Threaded, Lap Joint, Orifice, Spectacle Blind |
| Face Types | Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ) |
| Surface Finish | Smooth, Serrated, Cold Drawn |
Chemical Composition of SS 310 Flanges
| Grade | C | Cr | Ni | Mn | Si | P | S | Fe |
|---|---|---|---|---|---|---|---|---|
| SS 310 | 0.25 max | 24.0 – 26.0 | 19.0 – 22.0 | 2.0 max | 1.50 max | 0.045 max | 0.030 max | Balance |
Mechanical Properties of ASTM A182 F310 Flanges
| Property | Value |
|---|---|
| Tensile Strength | 515 MPa (min) / 75,000 PSI |
| Yield Strength (0.2% Offset) | 205 MPa (min) / 30,000 PSI |
| Elongation (in 50mm) | 40% (min) |
| Hardness (Brinell) | 217 HB (max) |
| Density | 7.98 g/cm³ (0.288 lb/in³) |
| Melting Point | 1400–1450°C (2552–2642°F) |
Different Types of Stainless Steel 310 Flanges
SS 310 Lap Joint Flanges
Equivalent Grades of Stainless Steel 310 Flanges
| ASTM | ASME | UNS | DIN (Werkstoff) | AISI | BS | JIS |
|---|---|---|---|---|---|---|
| A182 F310 | SA182 F310 | S31000 | 1.4841 | 310 | — | SUS 310 |
| A182 F310S | SA182 F310S | S31008 | 1.4845 | 310S | 309S24 | SUS 310S |
| A182 F310H | SA182 F310H | — | — | — | — | — |
ASTM A182 F310 Forged Flange Dimensions
| Nominal Size | OD | T | BC | No. Holes | Hole Dia. | RF Dia. | HB | HT | SB (ID) | WB (ID) | SL | WL |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/2″ | 3.50 | 0.38 | 2.38 | 4 | 0.62 | 1.38 | 1.19 | 0.84 | 0.88 | 0.62 | 0.56 | 1.81 |
| 3/4″ | 3.88 | 0.44 | 2.75 | 4 | 0.62 | 1.69 | 1.50 | 1.05 | 1.09 | 0.82 | 0.56 | 2.00 |
| 1″ | 4.25 | 0.50 | 3.12 | 4 | 0.62 | 2.00 | 1.94 | 1.32 | 1.36 | 1.05 | 0.62 | 2.12 |
| 1-1/4″ | 4.62 | 0.56 | 3.50 | 4 | 0.62 | 2.50 | 2.31 | 1.66 | 1.70 | 1.38 | 0.75 | 2.19 |
| 1-1/2″ | 5.00 | 0.62 | 3.88 | 4 | 0.62 | 2.88 | 2.56 | 1.90 | 1.95 | 1.61 | 0.81 | 2.38 |
| 2″ | 6.00 | 0.69 | 4.75 | 4 | 0.75 | 3.62 | 3.06 | 2.38 | 2.44 | 2.07 | 0.94 | 2.44 |
| 2-1/2″ | 7.00 | 0.81 | 5.50 | 4 | 0.75 | 4.12 | 3.56 | 2.88 | 2.94 | 2.47 | 1.06 | 2.69 |
| 3″ | 7.50 | 0.88 | 6.00 | 4 | 0.75 | 5.00 | 4.25 | 3.50 | 3.57 | 3.07 | 1.12 | 2.69 |
| 3-1/2″ | 8.50 | 0.88 | 7.00 | 8 | 0.75 | 5.50 | 4.81 | 4.00 | 4.07 | 3.55 | 1.19 | 2.75 |
| 4″ | 9.00 | 0.88 | 7.50 | 8 | 0.75 | 6.19 | 5.31 | 4.50 | 4.57 | 4.03 | 1.25 | 2.94 |
| 5″ | 10.00 | 0.88 | 8.50 | 8 | 0.88 | 7.31 | 6.44 | 5.56 | 5.66 | 5.05 | 1.38 | 3.44 |
| 6″ | 11.00 | 0.94 | 9.50 | 8 | 0.88 | 8.50 | 7.56 | 6.63 | 6.72 | 6.07 | 1.50 | 3.44 |
| 8″ | 13.50 | 1.06 | 11.75 | 8 | 0.88 | 10.62 | 9.69 | 8.63 | 8.72 | 7.98 | 1.69 | 3.94 |
| 10″ | 16.00 | 1.12 | 14.25 | 12 | 1.00 | 12.75 | 12.00 | 10.75 | 10.88 | 10.02 | 1.88 | 3.94 |
| 12″ | 19.00 | 1.19 | 17.00 | 12 | 1.00 | 15.00 | 14.38 | 12.75 | 12.88 | 12.00 | 2.12 | 4.44 |
| 14″ | 21.00 | 1.31 | 18.75 | 12 | 1.12 | 16.25 | 15.75 | 14.00 | 14.14 | 13.25 | 2.19 | 4.94 |
| 16″ | 23.50 | 1.38 | 21.25 | 16 | 1.12 | 18.50 | 18.00 | 16.00 | 16.16 | 15.25 | 2.44 | 4.94 |
| 18″ | 25.00 | 1.50 | 22.75 | 16 | 1.25 | 21.00 | 19.88 | 18.00 | 18.18 | 17.25 | 2.62 | 5.44 |
| 20″ | 27.50 | 1.62 | 25.00 | 20 | 1.25 | 23.00 | 22.00 | 20.00 | 20.20 | 19.25 | 2.81 | 5.62 |
| 22″ | 29.50 | 1.75 | 27.25 | 20 | 1.38 | 25.25 | 24.25 | 22.00 | 22.22 | 21.25 | 3.07 | 5.82 |
| 24″ | 32.00 | 1.81 | 29.50 | 20 | 1.38 | 27.25 | 26.12 | 24.00 | 24.25 | 23.25 | 3.19 | 5.94 |
Size Chart of Stainless Steel 310 Flanges
| Pipe Size (NPS) | Flange Thk. (C) | Raised Face (R) | Hub Dia. (X) | O.D. (O) | Hub Length (Y) | Bolt Circle (BC) | No. of Bolts | Bolt Dia. | Bolt Hole Dia. | Weight (KG) |
|---|---|---|---|---|---|---|---|---|---|---|
| 1/2″ | 11.20 | 35.10 | 30.20 | 89.00 | 15.70 | 60.50 | 4 | 1/2″ | 15.80 | 0.40 |
| 3/4″ | 12.70 | 42.90 | 38.10 | 98.50 | 15.70 | 69.90 | 4 | 1/2″ | 15.80 | 0.70 |
| 1″ | 14.20 | 50.80 | 49.30 | 108.00 | 17.50 | 79.30 | 4 | 1/2″ | 15.80 | 0.82 |
| 1-1/4″ | 15.70 | 63.50 | 58.70 | 117.50 | 20.60 | 88.90 | 4 | 1/2″ | 15.80 | 1.20 |
| 1-1/2″ | 17.50 | 73.20 | 65.00 | 127.00 | 22.40 | 98.60 | 4 | 1/2″ | 15.80 | 1.50 |
| 2″ | 19.10 | 91.90 | 77.70 | 152.50 | 25.40 | 120.70 | 4 | 5/8″ | 19.10 | 2.30 |
| 2-1/2″ | 22.40 | 104.60 | 90.40 | 178.00 | 28.40 | 139.70 | 4 | 5/8″ | 19.10 | 3.70 |
| 3″ | 23.90 | 127.00 | 108.00 | 190.50 | 30.20 | 152.40 | 4 | 5/8″ | 19.10 | 4.10 |
| 3-1/2″ | 23.90 | 139.70 | 122.20 | 216.00 | 31.80 | 177.80 | 8 | 5/8″ | 19.10 | 5.10 |
| 4″ | 23.90 | 157.20 | 134.90 | 228.50 | 33.30 | 190.50 | 8 | 5/8″ | 19.10 | 5.90 |
| 5″ | 23.90 | 185.70 | 163.60 | 254.00 | 36.60 | 215.90 | 8 | 3/4″ | 22.40 | 7.00 |
| 6″ | 25.40 | 215.90 | 192.00 | 279.50 | 39.60 | 241.30 | 8 | 3/4″ | 22.40 | 8.40 |
| 8″ | 28.40 | 269.70 | 246.10 | 343.00 | 44.50 | 298.50 | 8 | 3/4″ | 22.40 | 13.00 |
| 10″ | 30.20 | 323.90 | 304.80 | 406.50 | 49.30 | 362.00 | 12 | 7/8″ | 25.40 | 18.00 |
| 12″ | 31.80 | 381.00 | 365.30 | 482.50 | 55.60 | 431.80 | 12 | 7/8″ | 25.40 | 29.00 |
| 14″ | 35.10 | 412.80 | 400.10 | 533.50 | 57.20 | 476.30 | 12 | 1″ | 28.50 | 39.00 |
| 16″ | 36.60 | 469.90 | 457.20 | 597.00 | 63.50 | 539.80 | 16 | 1″ | 28.50 | 47.00 |
| 18″ | 39.60 | 533.40 | 505.00 | 635.00 | 68.30 | 577.90 | 16 | 1-1/8″ | 31.80 | 57.00 |
| 20″ | 42.90 | 584.20 | 558.80 | 698.50 | 73.20 | 635.00 | 20 | 1-1/8″ | 31.80 | 76.00 |
| 24″ | 47.80 | 692.20 | 663.40 | 813.00 | 82.60 | 749.30 | 20 | 1-1/4″ | 35.10 | 97.00 |
Application and Industrial Uses of Stainless Steel 310 Flanges
Furnace & Heat Treatment Equipment
SS 310 flanges are widely used in furnace components and heat treatment equipment due to their exceptional oxidation resistance at temperatures up to 1150°C. They maintain structural integrity under continuous high-temperature exposure, making them ideal for industrial furnaces and kilns.
Petrochemical Refineries
In petrochemical plants, SS 310 flanges connect high-temperature piping systems handling corrosive chemicals and hydrocarbons. Their superior carburization and sulfidation resistance ensures long service life in demanding refinery environments.
Power Generation
Stainless steel 310 flanges are used in power generation facilities, including boilers, superheaters, and heat exchangers. Their high creep strength and thermal cycling resistance make them suitable for continuous high-temperature service in thermal power plants.
Chemical Processing
The excellent corrosion resistance and high-temperature stability of SS 310 flanges make them ideal for chemical processing plants handling aggressive chemicals at elevated temperatures. Their chromium-nickel composition provides reliable performance in harsh chemical environments.
Oil & Gas Industry
SS 310 flanges are used in high-temperature oil and gas applications, including catalytic cracking units, reformer piping, and flare systems. Their ability to withstand extreme temperatures and corrosive environments ensures safe and reliable pipeline connections.
Food Processing Industry
In food processing, SS 310 flanges are used in high-temperature sterilization and drying equipment. Their non-reactive surface and resistance to oxidation ensure hygiene and product purity in food-grade applications.
UNS S31000 SS 310 Flanges Pressure Rating Chart
| Temperature (°F) | Class 150 | Class 300 | Class 400 | Class 600 | Class 900 | Class 1500 | Class 2500 |
|---|---|---|---|---|---|---|---|
| -20 to 100 | 285 | 740 | 990 | 1480 | 2220 | 3705 | 6170 |
| 200 | 260 | 675 | 900 | 1350 | 2025 | 3375 | 5625 |
| 300 | 230 | 655 | 875 | 1315 | 1970 | 3280 | 5470 |
| 400 | 200 | 635 | 845 | 1270 | 1905 | 3170 | 5280 |
| 500 | 170 | 600 | 800 | 1205 | 1805 | 3010 | 5015 |
| 600 | 140 | 550 | 730 | 1095 | 1640 | 2735 | 4560 |
| 650 | 125 | 535 | 715 | 1075 | 1610 | 2685 | 4475 |
| 700 | 110 | 535 | 715 | 1065 | 1600 | 2665 | 4440 |
| 750 | 95 | 505 | 675 | 1010 | 1515 | 2520 | 4200 |
| 800 | 80 | 410 | 550 | 825 | 1235 | 2060 | 3430 |
| 850 | 65 | 270 | 360 | 535 | 805 | 1345 | 2240 |
| 900 | 50 | 170 | 230 | 345 | 515 | 860 | 1430 |
| 950 | 35 | 105 | 140 | 205 | 310 | 515 | 860 |
| 1000 | 20 | 50 | 70 | 105 | 155 | 260 | 430 |
SS 310 Flanges Price List
| Flange Type | Approximate Price Range (USD) |
|---|---|
| Slip On Flanges | $10 – $60 |
| Weld Neck Flanges | $8 – $50 |
| Blind Flanges | $10.23 – $60 |
| Socket Weld Flanges | $10 – $30 |
| Threaded Flanges | $5.98 – $30 |
| Lap Joint Flanges | $5 – $40 |
| Orifice Flanges | $20 – $50 |
| Spectacle Blind Flanges | $1.98 – $50 |
Related Products
- Stainless Steel 304 Flanges
- Stainless Steel 304L Flanges
- Stainless Steel 304H Flanges
- Stainless Steel 310 Flanges
- Stainless Steel 310S Flanges
- Stainless Steel 316 Flanges
- Stainless Steel 316L Flanges
- Stainless Steel 316H Flanges
- Stainless Steel 317 Flanges
- Stainless Steel 317L Flanges
- Stainless Steel 321 Flanges
- Stainless Steel 321H Flanges
- Stainless Steel 347 Flanges
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Frequently Asked Questions
What is the maximum temperature for SS 310 flanges?
SS 310 flanges are designed for high-temperature service and can withstand continuous temperatures up to 1150°C. They also offer good oxidation resistance in intermittent service conditions.
What is the difference between 310 and 310S flanges?
The key difference lies in carbon content, 310S has lower carbon than 310, which minimizes carbide precipitation during welding. This makes 310S more suitable for welded applications.
What is the chemical composition of ASTM A182 F310 flanges?
ASTM A182 F310 flanges typically contain 24–26% chromium and 19–22% nickel, along with controlled amounts of carbon, manganese, and silicon. This composition ensures excellent heat and corrosion resistance.
What are the mechanical properties of stainless steel 310 flanges?
SS 310 flanges offer high tensile strength, good ductility, and hardness, along with excellent resistance to thermal stress. These properties make them suitable for high-pressure and high-temperature environments.
What is UNS S31000 material?
UNS S31000 is the unified numbering system designation for Stainless Steel 310, known for its superior oxidation resistance and strength at elevated temperatures. It is widely used in heat-resistant applications.
What is the melting point of SS 310 flanges?
The melting point of SS 310 ranges between 1400°C and 1450°C, allowing it to maintain structural integrity in extreme heat conditions. This makes it ideal for furnace and heat treatment equipment.
What is SS 310H (ASTM A182 F310H)?
SS 310H is a high-carbon variant of SS 310 with a carbon content of 0.04–0.10%. The higher carbon improves creep strength and long-term strength retention at temperatures above 800°C. It is specified for critical high-temperature pressure vessel and boiler applications under ASME Section VIII.
