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

# Carbon and Stainless Steel Flanges - ASME/ANSI Class 150

## ASME/ANSI B16.5-1996 Pipe Flanges and Flanged Fittings - Class 150 Flanges - outside and inside diameters, bolt circles, numbers and diameters of bolts.

ASME/ANSI B16.5-1996 Pipe Flanges and Flanged Fittings - Class 150 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 150
Pipe Size
(inches)
Flange Outside Diameter
(inches)
Pipe Outside Diameter
(inches)
Number of Bolt HolesBolt Hole Diameter
(inches) 1)
Bolt Circle
(inches)
1/2 3-1/2 0.84 4 5/8 2-3/8
3/4 3-7/8 1.05 4 5/8 2-3/4
1 4-1/4 1.32 4 5/8 3-1/8
1-1/4 4-5/8 1.66 4 5/8 3-1/2
1-1/2 5 1.90 4 5/8 3-7/8
2 6 2.38 4 3/4 4-3/4
2-1/2 7 2.88 4 3/4 5-1/2
3 7-1/2 3.50 4 3/4 6
3-1/2 8-1/2 4.00 8 3/4 7
4 9 4.50 8 3/4 7-1/2
5 10 5.56 8 7/8 8-1/2
6 11 6.63 8 7/8 9-1/2
8 13-1/2 8.63 8 7/8 11-3/4
10 16 10.75 12 1 14-1/4
12 19 12.75 12 1 17
14 21 14.00 12 1-1/8 18-3/4
16 23-1/2 16.00 16 1-1/8 21-1/4
18 25 18.00 16 1-1/4 22-3/4
20 27-1/2 20.00 20 1-1/4 25
24 32 24.00 20 1-3/8 29-1/2

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

• 1 inch = 25.4 mm

## Related Topics

• ### Piping Systems

Calculate dimensions of pipes and tubes. Pressure drop calculations and head loss charts. Use of different piping materials. Insulation of pipes and tubes and heat loss diagrams.

## Related Documents

• ### ANSI - American National Standards Institute

ANSI provides a forum for development of American national standards.
• ### ANSI B16.5 - Steel Pipe Flanges - Pressure and Temperature Ratings - Group 1.2.

Pressure (psig) and temperature ratings for steel pipe flanges and flanged fittings
• ### ASME - American Society of Mechanical Engineers

ASME is one of the leading organizations in the world developing codes and standards.
• ### Bronze Flanges - ASME/ANSI 150 lb

Flange diameters, thickness, bolt circles, numbers and diameters of bolts for ASME/ANSI B16.15 - Cast Bronze Threaded Fittings - 150 lb Bronze flanges with plain faces.
• ### Bronze Flanges - ASME/ANSI 300 lb

Flange diameters, thickness, bolt circles, numbers and diameter of bolts for ASME/ANSI B16.15 - Cast Bronze Threaded Fittings - 300 lb Bronze - Flanges with plain faces.
• ### Butt-Welding Fittings - Dimensions

Butt-Welding Fittings - B16.9 - dimensions.
• ### Carbon and Stainless Steel Flanges - ASME/ANSI Class 1500

ASME/ANSI B16.5-1996 Pipe Flanges and Flanged Fittings - Class 1500 Flanges - outside and inside diameters, bolt circles, numbers and diameters of bolts.
• ### Carbon and Stainless Steel Flanges - ASME/ANSI Class 2500

ASME/ANSI B16.5-1996 Pipe Flanges and Flanged Fittings - Class 2500 Flanges - outside and inside diameters, bolt circles, numbers and diameters of bolts.
• ### Carbon and Stainless Steel Flanges - ASME/ANSI Class 300

ASME/ANSI B16.5-1996 Pipe Flanges and Flanged Fittings - Class 300 Flanges - outside and inside diameters, bolt circles, numbers and diameters of bolts.
• ### Carbon and Stainless Steel Flanges - ASME/ANSI Class 400

ASME/ANSI B16.5-1996 Pipe Flanges and Flanged Fittings - Class 400 Flanges - outside and inside diameters, bolt circles, numbers and diameters of bolts.
• ### Carbon and Stainless Steel Flanges - ASME/ANSI Class 600

ASME/ANSI B16.5-1996 Pipe Flanges and Flanged Fittings - Class 600 Flanges - outside and inside diameters, bolt circles, numbers and diameters of bolts.
• ### 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.
• ### Carbon and Stainless Steel Welding Neck Flange Bores

Flange bores of welding neck flanges according ASME/ANSI B16.5-1996 Pipe Flanges and Flanged Fittings.
• ### Carbon Steel Flanges - Group 1.1 Pressure and Temperature Ratings

Maximum temperature and pressure ratings of flanges conforming dimensions ASME B16.5 and materials specification ASTM A-105.
• ### Carbon Steel Flanges - Pressure and Temperature Ratings

Maximum ratings for flanges conforming to ISO Standard 2229 dimensions and material specification AST-A-105.
• ### Forged Steel Flanges - Stud Charts

Number of studs, diameter and length for ANSI forged steel flanges ranging class 150 to 1500.
• ### Pipe Class Ratings vs. Pressure Numbers (PN)

Pressure numbers (PN) vs. flange class designations.
• ### Stainless Steel - Comparing International Standards

Comparing international stainless steel standards from America (US), France, Germany, Italy, Japan, Russia, Spain, Sweden, England (UK) and the European Union.
• ### Stainless Steel Classifications

Stainless steels are commonly grouped into martensitic stainless steels, ferritic stainless steels, austenitic stainless steels, duplex (ferritic-austenitic) stainless steels, and precipitation-hardening stainless steels.
• ### Stainless Steel Weld Fittings - ANSI/ASME B36.19

Dimensions of stainless steel weld fittings according ANSI/ASME B36.19.
• ### Stainless Steels - Identification Tests

Magnetic, spark, hardness and acid identification tests for austenitic, martensitic and ferritic stainless steels.
• ### Steel Pipes - De-Rating vs. Temperature

Temperature derating factor for steel pipes.

## Search

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

## Engineering ToolBox - SketchUp Extension - Online 3D modeling!

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 !

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

We use a third-party to provide monetization technologies for our site. You can review their privacy and cookie policy here.

You can change your privacy settings by clicking the following button: .

## Citation

• The Engineering ToolBox (2003). Carbon and Stainless Steel Flanges - ASME/ANSI Class 150. [online] Available at: https://www.engineeringtoolbox.com/asme-carbon-stainless-steel-flanges-d_301.html [Accessed Day Month Year].

Modify the access date according your visit.

8.21.8

.