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# 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.

ASME/ANSI B16.15 - Cast Bronze Threaded Fittings - 300 lb bronze flanges have plain faces with two concentric gasket retaining grooves between the port and the holes.

For full table with larger sizes - rotate the screen!

ANSI 300 lb Bronze Flanges
Pipe Size (inches)1/23/411 1/41 1/222 1/233 1/24568
Diameter of Flange
(inches)
3 3/4 4 5/8 4 7/8 5 1/4 6 1/8 6 1/2 7 1/2 8 1/4 9 10 11 12 1/2 15
Thickness of Flange
(inches)
1/2 17/32 19/32 5/8 11/16 3/4 13/16 29/32 31/32 1 1/16 1 1/8 1 3/16 1 3/8
Diameter of Bolt Circle
(inches)
2 5/8 3 1/4 3 1/2 3 7/8 4 1/2 5 5 7/8 6 5/8 7 1/4 7 7/8 9 1/4 10 5/8 13
Numbers of Bolts 4 4 4 4 4 4 8 8 8 8 8 12 12
Diameter of Bolts
(inches)
1/2 5/8 5/8 5/8 3/4 3/4 3/4 3/4 3/4 3/4 3/4 3/4 7/8
• 1 inch = 25.4 mm

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## Related Documents

• ### 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
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• ### ASTM Flanges - Hydrostatic Test Pressures

Flanged fittings and required hydrostatic test pressure.
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• ### 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.
• ### 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.
• ### 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 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.
• ### Metal Alloys - Specific Heats

Specific heat of metal alloys like brass, bronze and more.
• ### Metals and Alloys - Densities

Densities of some common metals, metallic elements and alloys - aluminum, bronze, copper, iron and more.
• ### Metals and Alloys - Melting Temperatures

The melting temperatures for some common metals and alloys.
• ### Pipe Class Ratings vs. Pressure Numbers (PN)

Pressure numbers (PN) vs. flange class designations.
• ### Pipe Flanges and Gaskets - Dimensions

Gasket dimensions according ASME B16.5 Pipe Flanges and Flange Fittings.

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## Citation

• The Engineering ToolBox (2003). Bronze Flanges - ASME/ANSI 300 lb. [online] Available at: https://www.engineeringtoolbox.com/asme-bronze-flanges-d_300.html [Accessed Day Month Year].

Modify the access date according your visit.

7.8.15

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