17 1/2" OD Flanges | McMaster-Carr

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600 psi @ 72° F

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300 psi @ 300° F

300 psi @ 360° F

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3 Products

About Pipe and Fittings

Measure your pipe and fittings to identify their pipe size, thread size, schedule, and thread type. Then, find compatible components.

High-Pressure Stainless Steel Unthreaded Pipe Flanges

Use these heavy duty forged flanges for high-pressure applications. Bolt two flat-surface flanges or two raised-surface flanges of same size together with a gasket (sold separately) to create an access point in a pipe line.

304 stainless steel flanges offer very good corrosion resistance. Cap flanges are also known as blind flanges.

Caps

Front

Raised Surface on Back

For Use With: Air, Hydraulic Fluid, Natural Gas, Oil, Steam, Water
Pressure Class: See table
Specifications Met:
Pressure Class 300: ASME B16.5, ASTM A182, MSS SP-25, MSS SP-6
Pressure Class 600: ASME B16.5, ASTM A182
Certification:: Material Certificate with Traceable Lot Number and Test Report
Pipe Nipples and Pipe: Use Schedule 40 stainless steel
Fittings: Use Schedule 40 stainless steel

					Bolt Hole			304/304L Stainless Steel
Pipe Size	Max. Pressure	Max. Steam Pressure	Flange OD	For Bolt Dia.	Dia.	No. of	Bolt Circle Dia.		Each
Pressure Class 300
10	600 psi @ 72° F	300 psi @ 360° F	17 1/2"	1"	1.12"	16	15 1/4"	4448T49	0000000

High-Pressure Steel Unthreaded Pipe Flanges

Forged for extra strength, these heavy duty flanges can withstand high-pressure applications. Bolt two flat-surface flanges or two raised-surface flanges of the same size together with a gasket (sold separately) to create an access point in a pipe line.

Slip-on weld flanges have no internal stop; slide a pipe through the flange and weld on both sides.

Cap flanges are also known as blind flanges.

Slip-On Weld Flanges

Front

Raised Surface on Back

For Use With: Air, Hydraulic Fluid, Natural Gas, Oil, Steam, Water
Pressure Class: See table
Specifications Met: ASTM A105, ASME B16.5
Certification: Material Certificate with Traceable Lot Number and Test Report
Pipe Nipples and Pipe: Use Schedule 80 steel
Fittings: Use Class 3000 and Schedule 80 steel

			Bolt Hole
Pipe Size	Flange OD	For Bolt Dia.	Dia.	No. of	Bolt Circle Dia.	Max. Pressure	Max. Steam Pressure	Material		Each
Pressure Class 300
10	17 1/2"	1.12"	1.12"	16	15 1/4"	600 psi @ 72° F	300 psi @ 300° F	Steel	6806K413	0000000

Caps

Front

Raised Surface on Back

For Use With: Air, Hydraulic Fluid, Natural Gas, Oil, Steam, Water
Pressure Class: See table
Specifications Met: ASTM A105, ASME B16.5
Certification: Material Certificate with Traceable Lot Number and Test Report
Pipe Nipples and Pipe: Use Schedule 80 steel
Fittings: Use Class 3000 and Schedule 80 steel

			Bolt Hole
Pipe Size	Flange OD	For Bolt Dia.	Dia.	No. of	Bolt Circle Dia.	Max. Pressure	Max. Steam Pressure	Material		Each
Pressure Class 300
10	17 1/2"	1.12"	1.12"	16	15 1/4"	600 psi @ 72° F	300 psi @ 300° F	Steel	6806K419	0000000