📏 Stainless Steel Flange Dimensions
Stainless steel flange dimensions vary depending on the type, pressure class, and standard (ASME, DIN, JIS, EN, etc.). Below is a general overview based on ASME B16.5 for flanges ranging from 1/2" to 24" in Classes 150, 300, 600, 900, 1500, and 2500.
✅ Common Flange Types:
Weld Neck (WN)
Slip-On (SO)
Blind (BL)
Socket Weld (SW)
Lap Joint (LJ)
Threaded (TH)
Ring Type Joint (RTJ)
📐 Key Dimensions (Example: ASME B16.5 Class 150, 2" Flange):
| Parameter | Value |
|---|---|
| Nominal Pipe Size | 2" |
| Outside Diameter (OD) | 6.00" (152.4 mm) |
| Bolt Circle Diameter | 4.75" (120.7 mm) |
| Number of Bolts | 4 |
| Bolt Hole Diameter | 0.75" (19 mm) |
| Flange Thickness (T) | 0.69" (17.5 mm) |
| Raised Face Height (RF) | 0.06" (1.6 mm) |
These dimensions vary by flange class and standard. Higher classes have thicker and more robust flanges.
📚 Standards Supported by SSM:
ASME B16.5: 1/2"–24", Class 150–2500
ASME B16.47: 26"–60", Series A & B
DIN / EN 1092-1: PN6–PN100
JIS B2220: 5K–30K
Custom Flanges per drawing
📦 SSM Stainless Steel Flange Grades:
304 / 304L, 316 / 316L
321, 347, 904L
Duplex 2205, 2507, 254 SMO
Special alloys: Inconel, Monel, Hastelloy
