Description
Stainless Steel 309S Flanges
Stainless Steel 309S Flanges are designed for high-temperature and corrosive service environments, offering superior oxidation resistance up to 1000°C. Manufactured in compliance with ASTM A182 / ASME SA182 standards, SS 309S flanges are available in a wide range of types including weld neck, slip on, blind, socket weld, threaded, and lap joint. With excellent strength, durability, and resistance to thermal fatigue, 309S stainless steel flanges are widely used in boilers, heat exchangers, furnaces, petrochemical plants, and power generation industries.
Specifications of Stainless Steel 309S Flanges
| Standards | GOST Flange, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092, BS, BS4504, BS 10, EN-1092, DIN, ANSI, ASME, DIN, MSS S44, ISO70051, ANSI/ASME B16.5, ASME/ANSI B16.5/16.36/16.47A/16.47B, B16.47 Series A & B, B16.48, EN |
|---|---|
| Pressure Rating ANSI | Class 1500, Class 150, Class 900, Class 2500, Class 300, Class 600, |
| Pressure Calculation in DIN | 10Bar, 16Bar, 25Bar, 40Bar, 6Bar, / PN16, PN64, PN40, PN25, PN10, PN6 |
| JIS | 16 K, 20 K, 5K, 10 K, 40 K, 63 K, 30 K, |
| UNI | 10Bar 16Bar 6Bar 25Bar 40Bar |
| EN | 6Bar 25Bar 40Bar 10Bar 16Bar |
| Most common Types | Threaded / Screwed / Forged / Plate |
| Production technique |
|
| Shapes and Types we produce | Large Male-Female (LMF), Ring Type Joint (RTJ), Flat Face (FF), Small Tongue, Small Male-Female (SMF),Raised Face (RF), Large Tongue & Groove, Groove, Lap-Joint Face (LJF) |
| Test | Direct-reading Spectrograph, Magnetic particle detector, Hydrostatic testing machine, X-ray detector, UI trasonic flaw detector |
| Equipment | Pushing Machine, Press machine, Bending machine, Sand-blasting machine, electric bevelling machine etc |
Size Range of A182 309S Pipe Flange
- Stainless Steel 1.4833 Flange : 1/2″ (15 NB) to 48″ (1200NB)
- 309S SS Blind Flange : 1/2″ NB – 24″ NB
- UNS S30908 Slip on Flange : 1/2″ NB – 12″ NB
Chemical Composition of UNS S30908 Flanges
| ELEMENT | SS 309S |
| NI | 12.0 – 15.0 |
| C | 0.08 max |
| MN | 2.0 max |
| P | 0.045 max |
| S | 0.030 max |
| SI | 1.0 max |
| CR | 22.0 – 24.0 |
| MO | 0.75 max |
Mechanical Analysis of SS 309S Flange
| Condition & Grade | Tensile Strength | Yeild Strength | Elognation | Hardness |
|---|---|---|---|---|
| SS 309S | 75 (515) | 30 (205) | 35 | 90 HRB max |
Types of 309S Stainless Steel Flange
 |  |  |  |
| Blind Flanges | Lap Joint Flanges | Long Weld Neck Flanges | Plate Flanges |
 |  |  |  |
| Reducing Flanges | Ring Type Joint Flanges | Slip On Flanges | Socket Weld Flanges |
 |  |  |  |
| Weld Neck Flanges | Tongue & Groove Flanges | Threaded / Screwed Flanges | Spectacle Blind Flanges |
ASTM A182 309S Flanges Equivalent Grades
| Standard | Werkstoff Nr. | UNS |
| SS 309S | 1.4833 | S30908 |
Stock of 309S SS Blind Flange
| Stainless Steel 309S Flange | 309S Stainless Steel Blind Flange |
| ASME SA182 F309S Slip on Flange | UNS S30908 Threaded Flange |
| Stainless Steel 1.4833 Reducing Flange | SS A182 F309S Socket Weld Flange |
| ASTM A182 F309S Weld Neck Flanges | 309S SS Lap Joint Flanges |
| SS A182 F309S Long Weld Neck Flanges | ASME SA182 F309S Spectacle Blind Flanges |
| Stainless Steel 1.4833 Spades & Ring Spacers | 309S Stainless Steel Nipoflange |
| UNS S30908 5D Weldoflange | ASTM A182 F309S Flange Outlet |
| Stainless Steel 309S Forged Flanges | SS A182 F309S Plate Flange |
| UNS S30908 Ring Type Joint Flanges | Stainless Steel 1.4833 Raised Face Flanges |
| 309S SS Tongue and Groove Flanges | ASME SA182 F309S Male and Female Flange |
| ASTM A182 F309S Reducing Flanges | 309S Stainless Steel ASME B16.5 Flanges |
| Stainless Steel 309S Flanges | SS A182 F309S BS 10 Flanges |
| Stainless Steel 1.4833 BS 4504 Flanges | UNS S30908 EN 1092-1 Flanges |
| ASTM A182 F309S SORF Flange | ASME SA182 F309S BLRF Flange |
| 309S Stainless Steel WNRF Flange | Stainless Steel 309S Series a Lap Joint Ring Flange |
| SS A182 F309S PN16 blind flange | Stainless Steel 1.4833 Forged Socket Weld Pipe Flange |
| ASME SA182 F309S Class 300 slip on flange | ASTM A182 F309S Slip On Weld Flange |
| UNS S30908 Forged steel slip on flanges | 309S Stainless Steel Race face slip on flange |
| Stainless Steel 309S SWRF Flange | 309S SS Forged blind flange |
| ASME SA182 F309S groove weld neck flange | SS A182 F309S Socket Weld Hub Flange |
| Stainless Steel 1.4833 threaded lap joint flange | 309S Stainless Steel Slip On Integral flange |
| 309S SS Forged integral puddle flange | UNS S30908 table e long weld neck |
| ASME SA182 F309S Class 150 LBS Flange | 309S SS PN10 Forged Flanges |
