SS Slip On flanges are designed to slip over the end of a pipe and then welded in place, made from ASTM A182 F316 stainless steel. SS 316 flanges are the standard molybdenum-containing grade, second only to 304 among austenitic stainless steels. 1.4401 1.4436 material is ideal for applications requiring high corrosion resistance, especially in environments containing chlorides, acids or salt water. The S31600 material has an operating temperature of up to 870 degrees Celsius. Contact us to get free quote and sample!
Standard Specification Of A182 F316 Slip On Flange
| Specifications | ASTM A182 / ASME SA182 |
|---|---|
| Class / Pressure Rating | 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc. |
| Size Chart | 1/2″ (15 NB) to 48″ (1200NB) |
| ASTM Standards | ANSI/ASME B16.5, B16.48, BS4504, B 16.47 Series A & B, BS 10, EN-1092, DIN, etc. |
| Standard Flange | ANSI, ASME, BS, DIN, EN etc. |
Common Dimensions (ANSI/ASME B16.5)
| Nominal Pipe Size (NPS) | Outer Diameter (OD) | Bolt Circle Diameter (BCD) | Number of Bolts | Raised Face Height |
|---|---|---|---|---|
| 1/2 inch | 90 mm | 60.3 mm | 4 | 1.6 mm |
| 1 inch | 125 mm | 88.9 mm | 4 | 1.6 mm |
| 4 inch | 230 mm | 190.5 mm | 8 | 2.3 mm |
| 8 inch | 405 mm | 317.5 mm | 8 | 2.3 mm |
| 12 inch | 505 mm | 431.8 mm | 12 | 4.8 mm |
ASTM A182 Grade 316 Flange Applications:
- Oil and gas industry
- Power industry
- Marine industry
- Paper industry
- Cement industry
- Chemical industry
Surface Treatment:
- Flat face (FF): for flat gaskets.
- Raised face (RF): for high pressure applications.
- Ring-type joint (RTJ): for high pressure and high temperature systems.
Benefits of Using Slip On (SORF) Flanges
- Lower Installation Costs: SORF flanges are generally cheaper than Weld Neck flanges and require less accuracy when cutting the pipe to length.
- Easy Alignment: Because the pipe slips into the flange before welding, it is easier to align the bolt holes.
- Dual Welding: These flanges are welded both inside and out to provide sufficient strength and prevent leakage.
Frequently Asked Questions (FAQ)
Q: Can I use 1.4436 to replace 1.4401?
A: Yes. 1.4436 is a higher-alloyed version and can almost always replace 1.4401, especially in harsh chemical environments.
Q: What is the maximum temperature for F316 Flanges?
A: They offer good oxidation resistance in intermittent service to 870°C and in continuous service to 925°C.
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