Stainless Steel 310S Flanges are high-performance pipe connecting components that are used to resist extreme heat, corrosion and oxidation in harsh industrial conditions like furnaces, kiln, power plants and petrochemical processing plants. The special feature of SS 310S is that it has a good chemical content of 24-26% Chromium and 19-22% Nickel, which provides the excellent oxidation resistance up to 1100°C intermittent service and up to 1040 °C continuous services. Made to ASTM A182 / ASME SA182 F310S standards and related grades such as UNS S31008 / DIN 1.4845, these flanges come in styles such as WNRF, SORF, BLRF, RTJ and so on in pressure classes of 150# to 2500# and sizes from 1/2″ to 48″. Amardeep Steel manufactures and supplies dimensionally accurate, pressure tested stainless steel flanges that satisfy the highest international standards of quality to your most demanding piping requirements.
Specification of Stainless Steel 310S Flanges
| Category | Specification Details |
|---|---|
| Material Specifications | ASTM A182 & ASME SA182 |
| Dimensional Standards | ANSI/ASME B16.5, B16.47 (Series A & B), B16.48, BS4504, BS 10, EN-1092, DIN, etc. |
| Flange Standards | ANSI, ASME, BS, DIN, EN Flanges, etc. |
| Size Range | 1/2″ (15 NB) to 48″ (1200 NB) |
| Pressure Ratings (Class) | 150#, 300#, 600#, 900#, 1500#, 2500# |
| Pressure Ratings (PN) | PN6, PN10, PN16, PN25, PN40, PN64, etc. |
| Flange Face Types | Flat Face (FF), Raised Face (RF), Ring Type Joint (RTJ) |
Stainless Steel 310S Chemical Composition
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | Fe |
|---|---|---|---|---|---|---|---|---|---|
| SS 310S | 0.08 max | 2.0 max | 1.00 max | 0.045 max | 0.030 max | 24.0 – 26.0 | 0.75 max | 19.0 – 21.0 | 53.095 min |
Mechanical Properties of SS 310S Flanges
| Density | Melting Point | Tensile Strength | Yield Strength (0.2% Offset) | Elongation |
|---|---|---|---|---|
| 7.9 g/cm³ | 1402 °C (2555 °F) | 75,000 Psi (515 MPa) | 30,000 Psi (205 MPa) | 40% |
Equivalent Grades of Stainless Steel 310S (DIN 1.4845) Flanges
| Grade | WERKSTOFF NR. | UNS | JIS | BS | EN |
|---|---|---|---|---|---|
| SS 310S | 1.4845 | S31008 | SUS 310S | 310S24 | X8CrNi25-21 |
HSN Code of SS 310S Flanges
| Description | HSN Code |
|---|---|
| SS 310S Flanges | 73072100 |
Types of Stainless Steel 310S Flanges
ASTM A182 SS 310 WNRF Flanges Dimensions Chart
| NPS | OD (O) | Thk (T) | RF (R) | Hub Base (X) | Holes (No.-Dia) | Bolt Circle | L2 (WN) | Hub (H) | Bore (B2) | Fillet (r) | Socket Depth |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/2 | 3.50 | 0.44 | 1.38 | 1.19 | 4 - 0.62 | 2.38 | 1.88 | 0.84 | 0.62 | 0.12 | 0.38 |
| 3/4 | 3.88 | 0.50 | 1.69 | 1.50 | 4 - 0.62 | 2.75 | 2.06 | 1.05 | 0.82 | 0.12 | 0.44 |
| 1 | 4.25 | 0.56 | 2.00 | 1.94 | 4 - 0.62 | 3.12 | 2.19 | 1.32 | 1.05 | 0.12 | 0.50 |
| 1-1/4 | 4.62 | 0.62 | 2.50 | 2.31 | 4 - 0.62 | 3.50 | 2.25 | 1.66 | 1.38 | 0.19 | 0.56 |
| 1-1/2 | 5.00 | 0.68 | 2.88 | 2.56 | 4 - 0.62 | 3.88 | 2.44 | 1.91 | 1.61 | 0.25 | 0.62 |
| 2 | 6.00 | 0.75 | 3.62 | 3.06 | 4 - 0.75 | 4.75 | 2.50 | 2.38 | 2.07 | 0.31 | 0.69 |
| 2-1/2 | 7.00 | 0.88 | 4.12 | 3.56 | 4 - 0.75 | 5.50 | 2.75 | 2.88 | 2.47 | 0.31 | 0.75 |
| 3 | 7.50 | 0.94 | 5.00 | 4.25 | 4 - 0.75 | 6.00 | 2.75 | 3.50 | 3.07 | 0.38 | 0.81 |
| 3-1/2 | 8.50 | 0.94 | 5.50 | 4.81 | 8 - 0.75 | 7.00 | 2.81 | 4.00 | 3.55 | 0.38 | 0.88 |
| 4 | 9.00 | 0.94 | 6.19 | 5.31 | 8 - 0.75 | 7.50 | 3.00 | 4.50 | 4.03 | 0.44 | 0.94 |
| 5 | 10.00 | 0.94 | 7.31 | 6.44 | 8 - 0.88 | 8.50 | 3.50 | 5.56 | 5.05 | 0.44 | 0.94 |
| 6 | 11.00 | 1.00 | 8.50 | 7.50 | 8 - 0.88 | 9.50 | 3.50 | 6.63 | 6.07 | 0.50 | 1.06 |
| 8 | 13.50 | 1.12 | 10.62 | 9.69 | 8 - 0.88 | 11.75 | 4.00 | 8.63 | 7.98 | 0.50 | 1.25 |
| 10 | 16.00 | 1.19 | 12.75 | 12.00 | 12 - 1.00 | 14.25 | 4.00 | 10.75 | 10.02 | 0.50 | 1.31 |
| 12 | 19.00 | 1.25 | 15.00 | 14.38 | 12 - 1.00 | 17.00 | 4.50 | 12.75 | 12.00 | 0.50 | 1.56 |
| 14 | 21.00 | 1.38 | 16.25 | 15.75 | 12 - 1.12 | 18.75 | 5.00 | 14.00 | 13.25 | 0.50 | 1.63 |
| 16 | 23.50 | 1.44 | 18.50 | 18.00 | 16 - 1.12 | 21.25 | 5.00 | 16.00 | 15.25 | 0.50 | 1.75 |
| 18 | 25.00 | 1.56 | 21.00 | 19.88 | 16 - 1.25 | 22.75 | 5.50 | 18.00 | 17.25 | 0.50 | 1.94 |
| 20 | 27.50 | 1.69 | 23.00 | 22.00 | 20 - 1.25 | 25.00 | 5.69 | 20.00 | 19.25 | 0.50 | 2.13 |
| 22 | 29.50 | 1.81 | 25.25 | 24.25 | 20 - 1.38 | 27.25 | 5.88 | 22.00 | 21.25 | 0.50 | 2.38 |
| 24 | 32.00 | 1.88 | 27.25 | 26.12 | 20 - 1.38 | 29.50 | 6.00 | 24.00 | 23.25 | 0.50 | 2.50 |
UNS S31008 SS Flanges Weight Chart
| NPS (inch) | Dim | Class 125/150 | Class 300 | Class 400/600 | Class 900/1500 | Class 2500 |
|---|---|---|---|---|---|---|
| 1/2″ | A | 3.50″ (88.9mm) | 3.75″ (95.2mm) | 3.75″ (95.2mm) | 4.75″ (121mm) | 5.25″ (133.4mm) |
| b | 0.44″ (11.1mm) | 0.56″ (14.3mm) | 0.56″ (14.3mm) | 0.88″ (22.2mm) | 1.19″ (30.2mm) | |
| D2 | 1.38″ (34.9mm) | 1.38″ (34.9mm) | 1.38″ (34.9mm) | 1.38″ (34.9mm) | 1.38″ (34.9mm) | |
| D1 | 2.38″ (60.3mm) | 2.62″ (66.7mm) | 2.62″ (66.7mm) | 3.25″ (82.6mm) | 3.50″ (88.9mm) | |
| n / d | 4 / 0.62″ | 4 / 0.62″ | 4 / 0.62″ | 4 / 0.88″ | 4 / 0.88″ | |
| 3/4″ | A | 3.88″ (98.4mm) | 4.62″ (117.5mm) | 4.62″ (117.5mm) | 5.12″ (130mm) | 5.50″ (139.7mm) |
| b | 0.50″ (12.7mm) | 0.62″ (15.9mm) | 0.62″ (15.9mm) | 1.00″ (25.4mm) | 1.25″ (31.8mm) | |
| D2 | 1.69″ (42.9mm) | 1.69″ (42.9mm) | 1.69″ (42.9mm) | 1.69″ (42.9mm) | 1.69″ (42.9mm) | |
| D1 | 2.75″ (69.8mm) | 3.25″ (82.5mm) | 3.25″ (82.5mm) | 3.50″ (88.9mm) | 3.75″ (95.2mm) | |
| n / d | 4 / 0.62″ | 4 / 0.75″ | 4 / 0.75″ | 4 / 0.88″ | 4 / 0.88″ | |
| 1″ | A | 4.25″ (108mm) | 4.88″ (123.8mm) | 4.88″ (123.8mm) | 5.88″ (149.2mm) | 6.25″ (159mm) |
| b | 0.56″ (14.3mm) | 0.69″ (17.5mm) | 0.69″ (17.5mm) | 1.12″ (28.6mm) | 1.38″ (34.9mm) | |
| D2 | 2.00″ (50.8mm) | 2.00″ (50.8mm) | 2.00″ (50.8mm) | 2.00″ (50.8mm) | 2.00″ (50.8mm) | |
| D1 | 3.12″ (79.4mm) | 3.50″ (88.9mm) | 3.50″ (88.9mm) | 4.00″ (102mm) | 4.25″ (108mm) | |
| n / d | 4 / 0.62″ | 4 / 0.75″ | 4 / 0.75″ | 4 / 1.00″ | 4 / 1.00″ | |
| 1-1/2″ | A | 5.00″ (127mm) | 6.12″ (155.6mm) | 6.12″ (155.6mm) | 7.00″ (177.8mm) | 8.00″ (203mm) |
| b | 0.69″ (17.5mm) | 0.81″ (20.6mm) | 0.88″ (22.2mm) | 1.25″ (31.8mm) | 1.75″ (44.5mm) | |
| D2 | 2.88″ (73mm) | 2.88″ (73mm) | 2.88″ (73mm) | 2.88″ (73mm) | 2.88″ (73mm) | |
| D1 | 3.88″ (98.4mm) | 4.50″ (114mm) | 4.50″ (114mm) | 4.88″ (124mm) | 5.75″ (146mm) | |
| n / d | 4 / 0.62″ | 4 / 0.88″ | 4 / 0.88″ | 4 / 1.12″ | 4 / 1.25″ | |
| 2″ | A | 6.00″ (152.4mm) | 6.50″ (165.1mm) | 6.50″ (165.1mm) | 8.50″ (215.9mm) | 9.25″ (234.9mm) |
| b | 0.75″ (19mm) | 0.88″ (22.2mm) | 1.00″ (25.4mm) | 1.50″ (38.1mm) | 2.00″ (50.8mm) | |
| D2 | 3.62″ (92.1mm) | 3.62″ (92.1mm) | 3.62″ (92.1mm) | 3.62″ (92.1mm) | 3.62″ (92.1mm) | |
| D1 | 4.75″ (121mm) | 5.00″ (127mm) | 5.00″ (127mm) | 6.50″ (165.1mm) | 6.75″ (171mm) | |
| n / d | 4 / 0.75″ | 8 / 0.75″ | 8 / 0.75″ | 8 / 1.00″ | 8 / 1.12″ | |
| 2-1/2″ | A | 7.00″ (177.8mm) | 7.50″ (190.5mm) | 7.50″ (190.5mm) | 9.62″ (244mm) | 10.5″ (266.7mm) |
| b | 0.88″ (22.2mm) | 1.00″ (25.4mm) | 1.12″ (28.6mm) | 1.62″ (41.3mm) | 2.25″ (57.2mm) | |
| D2 | 4.12″ (104.8mm) | 4.12″ (104.8mm) | 4.12″ (104.8mm) | 4.12″ (105mm) | 4.12″ (105mm) | |
| D1 | 5.50″ (139.7mm) | 5.88″ (149.2mm) | 5.88″ (149.2mm) | 7.50″ (190.5mm) | 7.75″ (197mm) | |
| n / d | 4 / 0.75″ | 8 / 0.88″ | 8 / 0.88″ | 8 / 1.12″ | 8 / 1.25″ |
Testing of SS 310S Flanges
All ASTM A182 F310S Flanges undergo different testing methods, and the information is listed below:
- PMI (Positive Material Identification)
- Hydrostatic Testing
- Dimensional Inspection per ASME B16.5
- Visual/Surface Inspection
- IGC Test per ASTM A262
- MTC available per EN 10204 3.1 or 3.2
Application and Industrial Uses of Stainless Steel 310S Flanges
- Infrastructure & Civil Construction
- Bridge Fabrication & Structural Projects
- Petrochemical & Chemical Processing Plants
- Marine & Shipbuilding Applications
- Industrial Engineering & Fabrication
- General Structural Applications
- Offshore & Onshore Installations
- Power Generation & Energy Sector
- Food Processing & Manufacturing Units
- Oil & Gas Exploration & Refining
- Sugar & Agro-Processing Industries
Price List of Stainless Steel 310S Flanges
| Flange Type | Grade / UNS | FOB Price (USD) |
|---|---|---|
| Slip On Flanges | ASTM A182 SS 310/310S | $2.05 - $10.06 / Piece |
| Weld Neck Flanges | ASTM A182 SS 310/310S | $2.05 - $10.06 / Piece |
| Lap Joint Flanges | ASTM A182 SS 310/310S | $2.05 - $10.06 / Piece |
| Threaded Flanges | ASTM A182 SS 310/310S | $2.05 - $10.06 / Piece |
| Socket Weld Flanges | UNS S31000 / S31008 | $2.05 - $10.06 / Piece |
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
- Stainless Steel 347H Flanges
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Frequently Asked Questions
What is 310S stainless steel?
310S stainless steel is a low-carbon, high-temperature resistant austenitic grade known for its excellent oxidation resistance and strength in extreme heat conditions.
What is the difference between 310 and 310S?
The main difference is that 310S has lower carbon than 310, which improves weldability and reduces the risk of carbide precipitation.
What is the difference between 304 and 310S?
304 is a general-purpose stainless steel, while 310S is designed for high-temperature applications with higher chromium and nickel content for better heat resistance.
What is 310S material made of?
310S is made of iron with high chromium (24–26%) and nickel (19–22%), along with small amounts of carbon, manganese, and silicon.
What are the advantages of Stainless Steel 310S flanges?
They offer excellent high-temperature strength, superior oxidation resistance, good corrosion resistance, high durability, and easy weldability.
