50mm Tubing | McMaster-Carr

The smooth finish inside these fittings makes it easy to remove product residue. Also known as aseptic and tri-clamp fittings, they connect with a gasket, a clamp, and another quick-clamp fitting for a fast and easy way to access your line. The pressure rating of the fitting will vary depending on the clamp you choose, and the temperature rating will vary based on the gasket material you choose.

304 stainless steel fittings have very good corrosion resistance. 316 stainless steel fittings have excellent corrosion resistance.

Fittings that meet DIN standards adhere to international requirements for sanitary quick-clamp fittings. 3-A certified fittings comply with sanitary standards.

Note: To complete a connection, you’ll need two quick-clamp fittings, a clamp, and a gasket (all sold separately).

Straight Adapters, Tube × Butt-Weld Tube

For Use With: Air, Beverage, Dairy, Food, Water
Tubing:
Inch Fittings: Use with welded 304/304L or 316/316L stainless steel that meets ASTM A269 or ASTM 270
Metric Fittings: Use with welded 304/304L or 316/316L stainless steel
Specifications Met: See table

Fittings with butt-weld end are also known as ferrules; they weld to tubing for a permanent, flush connection.

For Tube OD						304 Stainless Steel		316L Stainless Steel
Quick Clamp	Butt Weld	Flange OD	Lg.	Wall Thick.	Specifications Met		Each		Each
Metric
50mm	53mm	64mm	21.5mm	1.5mm	3-A Certified 63-03, DIN 32676	0000000	000000	0000000	000000

304 Stainless Steel Clamps with Wing Nut

For Tube OD	For Flange OD	Max. Pressure	Specifications Met		Each
50mm	64mm	50 psi @ 72° F	DIN 32676	0000000	000000

Gaskets

EPDM gaskets resist water and steam and work well in humid environments.

EPDM Rubber
For Tube OD	ID	OD	Thick.	Temp. Range, °F	Color	Specifications Met		Each
50mm	50.200mm	64.000mm	0.205"	-50° to 275°	Black	DIN 32676	0000000	00000
Silicone Rubber
50mm	50.200mm	66.040mm	5.2mm	-40° to 450°	Clear	DIN 32676, FDA Compliant 21 CFR 177.2600	00000000	00000
PTFE Plastic
50mm	50.200mm	64.000mm	5.2mm	-100° to 500°	White	DIN 32676, FDA Compliant 21 CFR 177.1550	000000000	00000

Clamps for High-Polish Metal Quick-Clamp Sanitary Tube Fittings

Temperature Range: See Gaskets or O-Rings
Tubing:
Inch 304 Stainless Steel and Nylon Plastic: Use with welded 304/304L and 316/316L stainless steel that meets ASTM A269 or ASTM A270, except ASME BPE: Use with welded or seamless 304/304L stainless steel that meets ASTM A269 or ASTM A270
Metric 304 Stainless Steel: Use with welded 304/304L and 316/316L stainless steel
Inch 316 Stainless Steel: Use with welded 304/304L and 316/316L stainless steel
Metric 316 Stainless Steel: Use with welded 316/316L stainless steel

Connect quick-clamp sanitary tube fittings—also known as aseptic fittings—for a fast and easy way to access your line.

Wing nut—These clamps tighten by hand, no tools required.

304 stainless steel clamps have very good corrosion resistance. 316 stainless steel clamps are more corrosion resistant than 304 stainless steel clamps.

Clamps that meet DIN 11864 or DIN 32676 adhere to international standards for sanitary quick-clamp fittings.

304 Stainless Steel with Wing Nut

For Tube OD	For Flange OD	Max. Pressure	Specifications Met		Each
50mm	64mm	50 psi @ 72° F	DIN 32676	0000000	000000

316 Stainless Steel with Wing Nut

For Tube OD	For Flange OD	Max. Pressure	Specifications Met		Each
50mm	91mm	580 psi @ 300° F	DIN 11864	0000000	000000

Gaskets and O-Rings

The temperature rating of the fitting will vary depending on the gasket or O-ring material you choose. EPDM resists water and steam and works well in humid environments.

Gaskets
For Tube OD	ID	OD	Thick.	Temp. Range, °F	Color	Specifications Met		Each
EPDM Rubber
50mm	50.200mm	64.000mm	0.205"	-50° to 275°	Black	DIN 32676	0000000	00000
Silicone Rubber
50mm	50.200mm	66.040mm	5.2mm	-40° to 450°	Clear	DIN 32676, FDA Compliant 21 CFR 177.2600	00000000	00000
PTFE Plastic
50mm	50.200mm	64.000mm	5.2mm	-100° to 500°	White	DIN 32676, FDA Compliant 21 CFR 177.1550	000000000	00000

Standard-Wall Plastic Pipe for Water

Connect this pipe to standard-wall plastic pipe fittings for a variety of residential and commercial low-pressure plumbing and water supply applications. It’s made of PVC, which has good corrosion resistance. Pipe meets NSF/ANSI Standard 61 for drinking water. It also meets ASTM D1784 and ASTM D1785 specifications and testing requirements for material quality. Connect this pipe to unthreaded female socket-connect fittings using a PVC primer and cement (also known as solvent weld).

Warning: Never use plastic pipe fittings and pipe with compressed air or gas.

Rigid Metric Pipe

For Use With: Drinking Water, Water
Maximum Temperature: 140° F
Specifications Met: ASTM D1784, ASTM D1785, NSF/ANSI 61
Fittings: Use PVC Plastic

						4 ft.		8 ft.
DIN Size, mm	OD, mm	ID, mm	Wall Thick., mm	Color	Max. Pressure		Each		Each
50	50	42.6	3.7	Dark Gray	230 psi @ 72° F	0000000	000000	0000000	0000000

CPVC Pipe for Hot Water

Made of CPVC, this pipe can withstand high temperatures up to 170° or 200° F. It meets NSF/ANSI Standard 61 for drinking water. Also known as Schedule 80 pipe, it has thick, strong walls for use in heavy duty industrial plumbing and water supply applications, such as water processing and waste water treatment. Pipe has good corrosion resistance. It is comparable to Corzan.

Connect unthreaded pipe to unthreaded female socket-connect fittings using a CPVC primer and cement (also known as solvent weld).

Warning: Never use plastic pipe fittings and pipe with compressed air or gas.

Metric Unthreaded

For Use With: Acetic Acid (10%), Calcium Chloride, Deionized Water, Drinking Water, Hydrochloric Acid (25%), Nitric Acid (10%), Phosphoric Acid (85%), Salt Water, Sodium Hydroxide (50%), Sulfuric Acid (75%), Water
Temperature Range: 32° F to 170° F
Specifications Met: DIN 8079, ISO 15493, NSF/ANSI 61
Fittings: Use CPVC plastic
Flanges: Use Class 150 CPVC plastic

						4ft.		8ft.
DIN Size	OD	ID	Wall Thick.	Color	Max. Pressure		Each		Each
50 mm	50mm	42.6mm	3.7mm	Light Gray	230 psi @ 72° F	0000000	0000000	0000000	0000000

UV-Resistant Polypropylene Pipe for Chemicals

This polypropylene pipe resists the damaging effects of ultraviolet light, so it’s suitable for outdoor use. It has the chemical resistance to withstand a wide variety of acids, solvents, and other harsh substances. Pipe has thick, strong walls for heavy duty chemical processing applications. It meets ASTM D4101 specifications and testing requirements for material quality.

Warning: Never use plastic pipe fittings and pipe with compressed air or gas.

Sealants cannot be sold to Colorado, Connecticut, District of Columbia, Delaware, Illinois, Indiana, Massachusetts, Maryland, Maine, Michigan, New Hampshire, New Jersey, Northern Virginia, New York, Ohio, Pennsylvania, Rhode Island, or Utah due to local VOC (Volatile Organic Compounds) regulations.

Metric Unthreaded

For Use With: Solvents
Temperature Range: 32° to 212° F
Specifications Met: ASTM D4101
Fittings:: Use Polypropylene Plastic

Use heat welding to connect unthreaded pipe to unthreaded female socket-connect fittings.

							8 ft.
DIN Size, mm	OD, mm	ID, mm	Wall Thick., mm	Material	Color	Max. Pressure		Each
50	50	40.8	4.6	Polypropylene Plastic	Light Gray	150 psi @ 72° F	00000000	000000

Polished Multipurpose 304 Stainless Steel

Polished to either a brushed or mirror-like finish, this material is widely used to fabricate decorative enclosures and industrial workstations. The sheets, strips, bars, and adhesive-back foil are covered with a protective peel-off film. 304 stainless steel is a good all-around choice for a wide range of applications. It maintains its corrosion resistance in temperatures up to 1500° F.

Brushed #4 is often called a satin finish; it’s similar to a #3 finish, except the grain lines are finer. Rectangular and round tubes are polished on the outside.

Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.

Round Tubes

Brushed #4

Yield Strength:
Inch Sizes: Not Rated
Metric Sizes: 24,000 psi
Hardness:
Inch Sizes: Rockwell B80 (Medium)
Metric Sizes: Rockwell B70 (Medium)
Heat Treatment: See table
Heat Treatable: No
Specifications Met:
Inch Sizes: ASTM A554
Metric Sizes: ASTM A269

Brushed #4
OD	OD Tolerance	ID	Fabrication	Heat Treatment	Straightness Tolerance		1 ft. Lg.	3 ft. Lg.	6 ft. Lg.
2mm Wall Thick. (-0.03mm to 0.03mm Tolerance)
50mm	-0.250mm to 0.250mm	46mm	Seamless	Annealed (Softened)	Not Rated	0000000	0000000	0000000	0000000
3mm Wall Thick. (-0.3mm to 0.3mm Tolerance)
50mm	-0.250mm to 0.250mm	44mm	Seamless	Annealed (Softened)	Not Rated	0000000	000000	000000	000000

Ultra-Chemical-Resistant PTFE Gaskets for Quick-Clamp Tube Fittings

Made of PTFE, these gaskets are chemically inert (except to molten alkali metal and elemental fluorine). They ensure a tight seal in quick-clamp stainless steel sanitary tube fittings.

Gaskets that meet DIN 32676 adhere to international standards for sanitary quick-clamp fittings.

For Tube OD	ID	OD	Thick.	Temperature Range, °F	Hardness	Hardness Rating	Color	Specifications Met		Each
50mm	50.20mm	64.00mm	5.2mm	-100° to 500°	Durometer 63D	Extra Hard	White	DIN 32676, FDA Compliant 21 CFR 177.1550	000000000	000000

High-Temperature Silicone Gaskets for Quick-Clamp Tube Fittings

Even as temperatures rise, these silicone gaskets ensure a tight seal in quick-clamp stainless steel sanitary tube fittings. They withstand temperatures up to 450° F. These gaskets also resist water and salts.

Gaskets that meet DIN 32676 adhere to international standards for sanitary quick-clamp fittings.

For Tube OD	ID	OD	Thick.	Temperature Range, °F	Hardness	Hardness Rating	Color	Specifications Met		Each
50mm	50.20mm	66.04mm	5.2mm	-40° to 450°	Durometer 75A	Hard	Clear	DIN 32676, FDA Compliant 21 CFR 177.2600	00000000	000000

Water- and Steam-Resistant EPDM Gaskets for Quick-Clamp Tube Fittings

When working in moist environments, these EPDM gaskets ensure a tight seal in quick-clamp stainless steel sanitary tube fittings.

Gaskets that meet DIN 32676 adhere to international standards for sanitary quick-clamp fittings.

For Tube OD	ID	OD	Thickness	Temperature Range, °F	Hardness	Hardness Rating	Color	Specifications Met		Each
50mm	50.20mm	64.00mm	0.205"	-50° to 275°	Durometer 70A	Hard	Black	DIN 32676	0000000	00000