Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

Carbon and Stainless Steel Flanges - ASME/ANSI Class 900

ASME/ANSI B16.5-1996 Pipe Flanges and Flanged Fittings - Class 900 Flanges - outside and inside diameters, bolt circles, numbers and diameters of bolts.

Sponsored Links

ASME/ANSI B16.5-1996 Pipe Flanges and Flanged Fittings - Class 900 Flanges - outside and inside diameters, bolt circles, numbers and diameters of bolts for Weld neck, Threaded, Slip-on, Lap joint, Socket weld and Blind flanges.

Carbon and stainless steel qualities according ASME B16.5 Table 1A.

Carbon and Stainless Steel Flanges - ASME/ANSI Class 900
Pipe Size
(inches)
Flange Outside Diameter
(inches)
Pipe Outside Diameter
(inches)
Number of Bolt HolesBolt Hole Diameter
(inches) 1)
Bolt Circle
(inches)
1/2 4-3/4 0.84 4 7/8 3-1/4
3/4 5-1/8 1.05 4 7/8 3-1/2
1 5-7/8 1.32 4 1 4
1-1/4 6-1/4 1.66 4 1 4-3/8
1-1/2 7 1.90 4 1-1/8 4-7/8
2 8-1/2 2.38 8 1 6-1/2
2-1/2 9-5/8 2.88 8 1-1/8 7-1/2
3 9-1/2 3.50 8 1-1/8 7-1/2
4 11-1/2 4.50 8 1-1/4 9-1/4
5 13-3/4 5.56 8 1-3/8 11
6 15 6.63 12 1-1/4 12-1/2
8 18-1/2 8.63 12 1-1/2 15-1/2
10 21-1/2 10.75 16 1-1/2 18-1/2
12 24 12.75 20 1-1/2 21
14 25-1/4 14.00 20 1-5/8 22
16 27-3/4 16.00 20 1-3/4 24-1/4
18 31 18.00 20 2 27
20 33-3/4 20.00 20 2-1/8 29-1/2
24 41 24.00 20 2-5/8 35-1/2
ANSI B16.5 covers only sizes through 24"
26 42 3/4   20 2 7/8 37 1/2
28 46   20 3 1/8 40 1/4
30 48 1/2   20 3 1/8 42 3/4
32 51 3/4   20 3 3/8 45 1/2
34 55   20 3 5/8 48 1/4
36 57 1/2   20 3 5/8 50 3/4

1) Recommended bolts are 1/8 smaller than the nominal bolt hole diameters shown.

  • 1 inch = 25.4 mm
Sponsored Links

Related Topics

  • Piping Systems

    Dimensions of pipes and tubes, materials and capacities, pressure drop calculations and charts, insulation and heat loss diagrams.

Related Documents

Sponsored Links

Search

Search is the most efficient way to navigate the Engineering ToolBox.

Engineering ToolBox - SketchUp Extension - Online 3D modeling!

3D Engineering ToolBox Extension to SketchUp - add parametric components to your SketchUp model

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with older versions of the amazing SketchUp Make and the newer "up to date" SketchUp Pro . Add the Engineering ToolBox extension to your SketchUp Make/Pro from the Extension Warehouse !

Translate this Page

Translate this page to Your Own Language .

About the Engineering ToolBox!

Privacy Policy

We don't collect information from our users. More about

Citation

This page can be cited as

  • The Engineering ToolBox (2003). Carbon and Stainless Steel Flanges - ASME/ANSI Class 900. [online] Available at: https://www.engineeringtoolbox.com/ansi-pipes-flanges-d_216.html [Accessed Day Month Year].

Modify the access date according your visit.

3D Engineering ToolBox - draw and model technical applications! 2D Engineering ToolBox - create and share online diagram drawing templates! Engineering ToolBox Apps - mobile online and offline engineering applications!

Unit Converter

















































2.19.10

Sponsored Links
.