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ASTM A182 Alloy 309/309S is an austenitic chromium-nickel heat resistant stainless steel with good oxidation resistance up to 1038°C. The alloy has moderate strength and demonstrates Usefull performance in reducing sulphidising atmosphere .
Alloy 309/309S (UNS S30900/S30908) austenitic stainless steel is typically used for elevated temperature applications. Its high chromium and nickel content provides comparable corrosion resistance, superior resistance to oxidation, and the retention of a larger fraction of room temperature strength than the common austenitic Alloy 304. As an acclaimed undertaking of the business, Rexton Steel & Alloys is included in offering an unfathomable cluster of Stainless Steel 309/310/310S Flanges as a maker, exporter, stockiest and supplier to our household and worldwide customers. Alloy 309/309S (UNS S30900/S31000/S31008) is an austenitic stainless steel produced for use in high temperature corrosion safe applications. Alloy 309 can be effortlessly welded and processed by standard shop fabrication practices.
Because of its high chromium and low nickel content, Alloy 309 can be utilized in sulfur containing atmospheres up to 1832°F (1000°C). The alloy is not recommended for use in highly carburizing atmospheres since it exhibits only moderate resistance to carbon absorption. Alloy 309 can be utilized in slightly oxidizing, nitriding, cementing and thermal cycling applications, albeit, the maximum service temperature must be reduced.
As for national and global nature of crude materials, we likewise offer these SS 309/309S Flanges in tweaked sizes and thicknesses according to particular requests by our regarded customers at business sector driving costs.
| Dimension Std | ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings |
|---|---|
| Standard | ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges etc. |
| Specification | ASTM A182 / A240 & ASME SA182 / SA240 |
| Size | ½” NB – 48” NB |
| Class | 150#, 300#, 600#, 900#, 1500#, 2500#, etc |
| Pressure | DIN PN6, PN10, PN16, PN25, PN40, PN64, PN100, PN160, etc |
| Werkstoff Nr | 309 / 1.4828 |
|
Stainless Steel : Grade: 304, 304L, 304H, 309, 309S, 316, 316L, 316H, 310, 310S, 317, 317L, 321, 347, 904L |
| SS 309 | SS 310 | SS 310S | |
|---|---|---|---|
| Ni | 12 – 15 | 19 – 22 | 19 – 22 |
| Cr | 22 – 24 | 24 – 26 | 24 – 26 |
| C | 0.2 max | 0.25 max | 0.08 max |
| Fe | Balance | ||
| Mn | 2 max | 2 max | 2 max |
| Si | 1.0 max | 1.50 max | 1.50 max |
| S | 0.03 max | 0.03 max | 0.03 max |
| P | 0.045 max | 0.045 max | 0.045 max |
| Grade | Tensile Strength ksi (min) | Yield Strength 0.2% ksi (min) | Elongation % | Hardness (Brinell) MAX |
|---|---|---|---|---|
| 309 | 40 | 30 | 40 | 217 |
| Grade | Density lbm/in3 |
Thermal Conductivity (BTU/h ft. °F) |
Electrical Resistivity (in x 10-6) |
Modulus of Elasticity (psi x 106 |
Coefficient of Thermal Expansion (in/in)/ °F x 10-6 |
Specific Heat (BTU/lb/ °F) |
Melting Range (°F) |
|---|---|---|---|---|---|---|---|
| 309 | at 68°F: 0.285 | 9.0 at 32- 212°F | 30.7 at 68°F | 28.5 | 8.28 at 32 – 212°F | 0.1200 at 68°F to 212°F | 2500-2590 |
| Threaded Flanges |  |
Threaded Flanges are also known as screwed flange, and it is having a thread inside the flange bore which fits on the pipe with matching male thread on the pipe. |
|---|---|---|
| Socket-Weld Flanges |  |
Socket-Weld Flanges has a female socket in which pipe is fitted. Fillet welding is done from outside on the pipe. |
| Slip-On Flanges |  |
Slip-On flange has a hole with matching outside diameter of pipe from which pipe can pass. The flange is placed on pipe and fillet welded from both inside and outside. |
| Lap Joint Flanges |  |
Lap flange is having two components, a stub end, and a loose backing flange. Stub end is butt welded to the pipe and Backing flange freely move over the pipe. |
| Weld Neck Flanges |  |
Weld neck flange are most widely used flanged in process piping. It gives the highest level of joint integrity due to Butt-welded with a pipe. |
| Blind Flanges |  |
The blind flange is a blank disc with bolt hole. These types of flanges are used with another type of flange to isolate the piping system |
| Screwed Flange |  |
3Screwed Flange is used to connect other components in non-critical applications, low-pressure in which no welding is required. |
| Reducing Flange |  |
A reducing flange consists of a flange with one specific diameter having different bore and smaller diameter. It s used to change the diameters in piping system. |
| Forged Flange |  |
They are designed by using corrosion free substance and using an advanced technology. Our team of experts identify each and every product to ensure the best quality and flawless of these products available at suitable rates |
| Orifice Flange |  |
Orifice Flange helps to measure the flow of liquids and gases using orifice meters located on the outside diameter of the flanges. The main purpose of the orifice flange identifies the flow rate of either liquid or gas in the pipeline system. |
| Spectacle Flange |  |
A spectacle flange is a specialty flange made of two metal discs attached in the middle by a small section of steel. Spectable flanges get their name because they look like a pair of reading glasses, or spectacles. |
| Monel : Grade: Monel 400, Monel K500, Monel R-405 Nickel : Grade: Nickel 200, Nickel 201 Inconel : Grade: Inconel 600, Inconel 601, Inconel 625, Inconel 718 Incoloy : Grade: Incoloy 800, Incoloy 800H, INCOLOY 800HT Hastalloy : Grade: Hastalloy B2, Hastalloy B3, Hastalloy C22, Hastalloy C276, Hastalloy X Titanium : Grade: Gr1, Gr2, Gr3, Gr5, Gr7, Gr11 Carbon Steel : Grade: WPB , WPBW, WPHY 42, WPHY 46, WPHY 52, WPH 60, WPHY 65 & WPHY 70 Duplex Steel: Grade: UNS F44, F45, F51, F53, F55, F60, F61 Alloy Steel: Grade : WP 1, WP 5, WP 9, WP 11, WP 12, WP 22, WP 91 |
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