Stainless Steel Flanges

Manufacturer of a wide range of products which include socket weld flange, flat face flange, blind flanges, stainless steel forging flanges, spectacle flange and long neck flange.

Socket Weld Flange

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Approx. Price: Rs 330 / NumberGet Latest Price

Product Details:

Minimum Order Quantity	10 Number
Color	Silver
Material	Carbon Steel, Coper, Nickel Alloy, Stainless Steel
Size	3/4 inch, 3 inch, 1/2 inch, 2 inch, 1 inch
Class	150, 300, 600
Connection	Flanged
No. Of Holes	4 , 8 , 12
Application	Structure Pipe, Chemical Fertilizer Pipe, Gas Pipe, Hydraulic Pipe, Pneumatic Connections
Shape	Round
Type	Socket Weld Flange

Other Details:

Material of Construction	Standard	Grades
Stainless Steel Socket Weld Flanges	ASTM A182 , A240	F 304, 304L, 304H, 316, 316Ti, 316H, 316L, 316LN, 309S, 309H, 310S, 310H,317, 317L, 321, 321H, 347, 347H, 201, 202, 904L
Carbon Steel Socket Weld Flanges	ASTM A105	Gr. F42,46,52,56,60,65,70
Alloy Steel Socket Weld Flanges	ASTM A182	F1,F5,F9,F11,F22,F91
Nickel Alloy Socket Weld Flanges	ASTM SB564, SB160, SB472, SB162	Nickel 200 (UNS No. N02200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No. N10276), Alloy 20 (UNS No. N08020),
Copper Alloys Socket Weld Flanges	ASTM SB 61 , SB62 , SB151 , SB152	UNS No. C 70600 (Cu-Ni 90/10), C 71500 (Cu-Ni 70/30), UNS No. C 10100, 10200, 10300, 10800, 12000, 12200,
Low Temperature Carbon Steel Socket Weld Flanges	ASTM A350	LF2 , LF3
Duplex Steel Socket Weld Flanges	ASTM A182, A240	UNS F 44, F 45, F51, F 53, F 55, F 60, F 61

Dimensional Tolerances of Socket Weld Flanges ASME B16.5:

Outside Diameter ≤ 24 = 1.6 mm \| > 24 = ± 3.2 mm	Inside Diameter ≤ 10 = ± 0.8 mm \| ≥ 12 = + 1.6 mm / – 0 mm
Diameter of Contact Face 1.6 mm Raised Face = ± 0.8 mm 6.35 mm Raised Face, Tongue & Groove / Male-Female = ± 0.4 mm	Outside Diameter of Hub ≤ 12 = + 2.4 mm / – 1.6 mm \| ≥ 14 = ± 3.2 mm
Diameter of Counterbore Same as for Inside Diameter	Drilling Bolt Circle = 1.6 mm \| Bolt Hole Spacing = ± 0.8 mm Eccentricity of Bolt Circle with Respect to Facing ≤ 2½ = 0.8 mm max. \| ≥ 3 = 1.6 mm max.
Thickness ≤ 18 = + 3.2 mm / – 0 \| ≥ 20 = + 4.8 mm / – 0	Length thru Hub ≤ 18 = + 3.2 mm / – 0.8 mm \| ≥ 20 = + 4.8 mm / – 1.6 mm

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Flat Face Flange

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Approx. Price: Rs 370 / NumberGet Latest Price

Product Details:

Minimum Order Quantity	10 Number
Size	10-20 inch
Brand	UNIFLEX
Material Standard	ASTM A105
Usage/Application	Oil Industry
Type	ALL TYPES
Rated Pressure	150#,300#,900
Shape	ROUND
Material Grade	A105
Color	Black
Surface Finish	BLACK
Grades	A105
Material	Carbon Steel
Flange Size Range	1/2 Inch-80 Inch

Other Detail:

Material of Construction	Standard	Grades
Stainless Steel Raised Face Flanges	ASTM A182 , A240	F 304, 304L, 304H, 316, 316Ti, 316H, 316L, 316LN, 309S, 309H, 310S, 310H,317, 317L, 321, 321H, 347, 347H, 201, 202, 904L
Carbon Steel Raised Face Flanges	ASTM A105	Gr. F42,46,52,56,60,65,70
Alloy Steel Raised Face Flanges	ASTM A182	F1,F5,F9,F11,F22,F91
Nickel Alloy Raised Face Flanges	ASTM SB564, SB160, SB472, SB162	Nickel 200 (UNS No. N02200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No. N10276), Alloy 20 (UNS No. N08020),
Copper Alloys Raised Face Flanges	ASTM SB 61 , SB62 , SB151 , SB152	UNS No. C 70600 (Cu-Ni 90/10), C 71500 (Cu-Ni 70/30), UNS No. C 10100, 10200, 10300, 10800, 12000, 12200,
Low Temperature Carbon Steel Raised Face Flanges	ASTM A350	LF2 , LF3
Duplex Steel Raised Face Flanges	ASTM A182, A240	UNS F 44, F 45, F51, F 53, F 55, F 60, F 61

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Delivery Time: READY STOCK

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Approx. Price: Rs 260 / NumberGet Latest Price

Product Details:

Minimum Order Quantity	10 Number
Size	20-30 inch, 1/2, 1-5 inch, 10-20 inch, 0-1 inch, 5-10 inch, >30 inch
Material Standard	ASTM A105, ASTM A182, ASTM A351
Color	Silver
Material	Stainless Steel
Shape	Round
Type	Blind Flange

This is a flange without a bore and is used to shut off a piping system or vessel opening. It also permits Easy access to vessels or piping systems for inspection purposes. Blind flange can be supplied with or without hubs at the manufacturers option.

Others Details:

Material of Construction	Standard	Grades
Stainless Steel Blind Flanges	ASTM A182 , A240	F 304, 304L, 304H, 316, 316Ti, 316H, 316L, 316LN, 309S, 309H, 310S, 310H,317, 317L, 321, 321H, 347, 347H, 201, 202, 904L
Carbon Steel Blind Flanges	ASTM A105	Gr. F42,46,52,56,60,65,70
Alloy Steel Blind Flanges	ASTM A182	F1,F5,F9,F11,F22,F91
Nickel Alloy Blind Flanges	ASTM SB564, SB160, SB472, SB162	Nickel 200 (UNS No. N02200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No. N10276), Alloy 20 (UNS No. N08020),
Copper Alloys Blind Flanges	ASTM SB 61 , SB62 , SB151 , SB152	UNS No. C 70600 (Cu-Ni 90/10), C 71500 (Cu-Ni 70/30), UNS No. C 10100, 10200, 10300, 10800, 12000, 12200,
Low Temperature Carbon Steel Blind Flanges	ASTM A350	LF2 , LF3
Duplex Steel Blind Flanges	ASTM A182, A240	UNS F 44, F 45, F51, F 53, F 55, F 60, F 61

Dimensional Tolerances of Blind Flanges ASME B16.5:

Outside Diameter ≤ 24 = 1.6 mm \| > 24 = ± 3.2 mm	Inside Diameter not applicable
Diameter of Contact Face 1.6 mm Raised Face = ± 0.8 mm 6.35 mm Raised Face, Tongue & Groove / Male-Female = ± 0.4 mm	Outside Diameter of Hub ≤ 12 = + 2.4 mm / – 1.6 mm \| ≥ 14 = ± 3.2 mm
Diameter of Counterbore not applicable	Drilling Bolt Circle = 1.6 mm \| Bolt Hole Spacing = ± 0.8 mm Eccentricity of Bolt Circle with Respect to Facing ≤ 2½ = 0.8 mm max. \| ≥ 3 = 1.6 mm max.
Thickness ≤ 18 = + 3.2 mm / – 0 \| ≥ 20 = + 4.8 mm / – 0	Length thru Hub ≤ 18 = + 3.2 mm / – 0.8 mm \| ≥ 20 = + 4.8 mm / – 1.6 mm

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Stainless Steel Forging Flanges

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Approx. Price: Rs 1,000 / NumberGet Latest Price

Product Details:

Minimum Order Quantity	50 Number
Size	5-10 inch
Brand	UNIFLEX
Material Standard	ASTM A182
Usage/Application	Construction/Manufacturing
Type	FORGING FLANGES
Shape	ROUND
Surface Finish	POLISHED
Condition	New

Being a well established organization, we bring forth an excellent assortment of Stainless Steel Flanges. Our offered flanges are widely appreciated by our prestigious clients for their precise design and easy installation. These flanges can also be availed in various sizes, designs and other related specifications. Our provided flanges are manufactured by a team of our vendors'' adept professionals utilizing quality approved raw material and advanced technology.

Features:

Compact design
Smooth finish
Rust proof

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Additional Information:

Delivery Time: READY STOCK

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Spectacle Flange

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Approx. Price: Rs 300 / NumberGet Latest Price

Product Details:

Minimum Order Quantity	5 Number
Size	Up to 48 Inch
Material	Stainless Steel
Type	Welding Flange
Weight	0.49 kgs-600 kgs

This is a pressure retaining plate with one solid end and one open end connected with a web or tie-bar. In normal operation, the open end forms the seal between two flanges and permits normal flow of fluid through pipe work. If the solid end is swung into position it effectively blanks of the pipe and halts the flow.

Other Details:

Material of Construction	Standard	Grades
Stainless Steel Spectacle Blind Flanges	ASTM A182 , A240	F 304, 304L, 304H, 316, 316Ti, 316H, 316L, 316LN, 309S, 309H, 310S, 310H,317, 317L, 321, 321H, 347, 347H, 201, 202, 904L
Carbon Steel Spectacle Blind Flanges	ASTM A105	Gr. F42,46,52,56,60,65,70
Alloy Steel Spectacle Blind Flanges	ASTM A182	F1,F5,F9,F11,F22,F91
Nickel Alloy Spectacle Blind Flanges	ASTM SB564, SB160, SB472, SB162	Nickel 200 (UNS No. N02200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No. N10276), Alloy 20 (UNS No. N08020),
Copper Alloys Spectacle Blind Flanges	ASTM SB 61 , SB62 , SB151 , SB152	UNS No. C 70600 (Cu-Ni 90/10), C 71500 (Cu-Ni 70/30), UNS No. C 10100, 10200, 10300, 10800, 12000, 12200,
Low Temperature Carbon Steel Spectacle Blind Flanges	ASTM A350	LF2 , LF3
Duplex Steel Spectacle Blind Flanges	ASTM A182, A240	UNS F 44, F 45, F51, F 53, F 55, F 60, F 61

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Long Neck Flange

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Approx. Price: Rs 500 / NumberGet Latest Price

Product Details:

Minimum Order Quantity	5 Number
Size	>30 inch, 5-10 inch, 10-20 inch, 20-30 inch, 0-1 inch, 1-5 inch
Material Standard	ASTM A105, ASTM A351, ANSI B16.5, ASTM A182
Material	Stainless Steel
Application	Machinery Parts
Surface Treatment	Polishing
Type	Long Neck Flange

Other Details:

Material of Construction	Standard	Grades
Stainless Steel Long Neck Flanges	ASTM A182 , A240	F 304, 304L, 304H, 316, 316Ti, 316H, 316L, 316LN, 309S, 309H, 310S, 310H,317, 317L, 321, 321H, 347, 347H, 201, 202, 904L
Carbon Steel Long Neck Flanges	ASTM A105	Gr. F42,46,52,56,60,65,70
Alloy Steel Long Neck Flanges	ASTM A182	F1,F5,F9,F11,F22,F91
Nickel Alloy Long Neck Flanges	ASTM SB564, SB160, SB472, SB162	Nickel 200 (UNS No. N02200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No. N10276), Alloy 20 (UNS No. N08020),
Copper Alloys Long Neck Flanges	ASTM SB 61 , SB62 , SB151 , SB152	UNS No. C 70600 (Cu-Ni 90/10), C 71500 (Cu-Ni 70/30), UNS No. C 10100, 10200, 10300, 10800, 12000, 12200,
Low Temperature Carbon Steel Long Neck Flanges	ASTM A350	LF2 , LF3
Duplex Steel Long Neck Flanges	ASTM A182, A240	UNS F 44, F 45, F51, F 53, F 55, F 60, F 61

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Weld Neck Flange

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Approx. Price: Rs 250 / NumberGet Latest Price

Product Details:

Minimum Order Quantity	10 Number
Size	>30 inch, 20-30 inch, 10-20 inch, 1-5 inch, 5-10 inch
Material Standard	ASTM A182, ASTM A351, ANSI B16.5, ASTM A105
Outside Diameter	Less tha equal 24 = 1.6 mm \| More 24 = +- 3.2 mm
Inside Diameter	Less than equal 10 = +- 0.8 mm \| 12 thru 18 = 1.6 mm \| More than equal 20 = + 3.2 mm / -1.6 mm
Thickness	Less than equal 18 = + 3.2 mm / - 0 \| More than equal 20 = + 4.8 mm / - 0
Bolt Circle	1.6 mm
Material	Stainless Steel

Others Details:

Material of Construction	Standard	Grades
Stainless Steel Weld Neck Flanges	ASTM A182 , A240	F 304, 304L, 304H, 316, 316Ti, 316H, 316L, 316LN, 309S, 309H, 310S, 310H,317, 317L, 321, 321H, 347, 347H, 201, 202, 904L
Carbon Steel Weld Neck Flanges	ASTM A105	Gr. F42,46,52,56,60,65,70
Alloy Steel Weld Neck Flanges	ASTM A182	F1,F5,F9,F11,F22,F91
Nickel Alloy Weld Neck Flanges	ASTM SB564, SB160, SB472, SB162	Nickel 200 (UNS No. N02200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No. N10276), Alloy 20 (UNS No. N08020),
Copper Alloys Weld Neck Flanges	ASTM SB 61 , SB62 , SB151 , SB152	UNS No. C 70600 (Cu-Ni 90/10), C 71500 (Cu-Ni 70/30), UNS No. C 10100, 10200, 10300, 10800, 12000, 12200,
Low Temperature Carbon Steel Weld Neck Flanges	ASTM A350	LF2 , LF3
Duplex Steel Weld Neck Flanges	ASTM A182, A240	UNS F 44, F 45, F51, F 53, F 55, F 60, F 61

Dimensional Tolerances of Welding Neck Flanges ASME 16.5:

Outside Diameter ≤ 24 = 1.6 mm \| > 24 = ± 3.2 mm	Inside Diameter ≤ 10 = ± 0.8 mm \| 12 thru 18 = 1.6 mm \| ≥ 20 = + 3.2 mm / – 1.6 mm
Diameter of Contact Face 1.6 mm Raised Face = ± 0.8 mm 6.35 mm Raised Face, Tongue & Groove / Male-Female = ± 0.4 mm	Diameter of Hub at Base ≤ 24 = 1.6 mm \| > 24 = ± 3.2 mm
Diameter of Hub at Point of Welding ≤ 5 = + 2.4 mm / – 0.8 mm \| ≥ 6 = + 4.0 mm / – 0.8 mm	Drilling Bolt Circle = 1.6 mm \| Bolt Hole Spacing = ± 0.8 mm Eccentricity of Bolt Circle with Respect to Facing ≤ 2½ = 0.8 mm max. \| ≥ 3 = 1.6 mm max
Thickness ≤ 18 = + 3.2 mm / – 0 \| ≥ 20 = + 4.8 mm / – 0	Length thru Hub ≤ 10 = 1.6 mm \| ≥ 12 = ± 3.2 mm

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Lap Joint Flange

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Approx. Price: Rs 340 / NumberGet Latest Price

Product Details:

Minimum Order Quantity	5 Number
Size	0-1 inch, 10-20 inch, 20-30 inch, 1-5 inch, 5-10 inch, >30 inch
Material Standard	ASTM A351, ASTM A182, ASTM A105, ANSI B16.5
Type	Lap Joint
Material	Stainless Steel
Outside Diameter	100-2500 mm
Usage	Industrial

Other Details:

Material of Construction	Standard	Grades
Stainless Steel Lap Joint Flanges	ASTM A182 , A240	F 304, 304L, 304H, 316, 316Ti, 316H, 316L, 316LN, 309S, 309H, 310S, 310H,317, 317L, 321, 321H, 347, 347H, 201, 202, 904L
Carbon Steel Lap Joint Flanges	ASTM A105	Gr. F42,46,52,56,60,65,70
Alloy Steel Lap Joint Flanges	ASTM A182	F1,F5,F9,F11,F22,F91
Nickel Alloy Lap Joint Flanges	ASTM SB564, SB160, SB472, SB162	Nickel 200 (UNS No. N02200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No. N10276), Alloy 20 (UNS No. N08020),
Copper Alloys Lap Joint Flanges	ASTM SB 61 , SB62 , SB151 , SB152	UNS No. C 70600 (Cu-Ni 90/10), C 71500 (Cu-Ni 70/30), UNS No. C 10100, 10200, 10300, 10800, 12000, 12200,
Low Temperature Carbon Steel Lap Joint Flanges	ASTM A350	LF2 , LF3
Duplex Steel Lap Joint Flanges	ASTM A182, A240	UNS F 44, F 45, F51, F 53, F 55, F 60, F 61

Dimensional Tolerances of Lap Joint Flanges ASME B16.5:

Outside Diameter ≤ 24 = 1.6 mm \| > 24 = ± 3.2 mm	Inside Diameter ≤ 10 = ± 0.8 mm \| ≥ 12 = + 1.6 mm / – 0 mm
Diameter of Contact Face 1.6 mm Raised Face = ± 0.8 mm 6.35 mm Raised Face, Tongue & Groove / Male-Female = ± 0.4 mm	Outside Diameter of Hub ≤ 12 = + 2.4 mm / – 1.6 mm \| ≥ 14 = ± 3.2 mm
Diameter of Counterbore Same as for Inside Diameter	Drilling Bolt Circle = 1.6 mm \| Bolt Hole Spacing = ± 0.8 mm Eccentricity of Bolt Circle with Respect to Facing ≤ 2½ = 0.8 mm max. \| ≥ 3 = 1.6 mm max.
Thickness ≤ 18 = + 3.2 mm / – 0 \| ≥ 20 = + 4.8 mm / – 0	Length thru Hub ≤ 18 = + 3.2 mm / – 0.8 mm \| ≥ 20 = + 4.8 mm / – 1.6 mm

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Orifice Flange

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Approx. Price: Rs 320 / NumberGet Latest Price

Product Details:

Minimum Order Quantity	5 Number
Size	20-30 inch, >30 inch, 0-1 inch, 1-5 inch, 5-10 inch, 10-20 inch
Material Standard	ASTM A105, ANSI B16.5
Material	Stainless Steel
Type	Welding Flange
Color	Silver
Shape	Round

Other Detail:

Material of Construction	Standard	Grades
Stainless Steel Orifice Flanges	ASTM A182 , A240	F 304, 304L, 304H, 316, 316Ti, 316H, 316L, 316LN, 309S, 309H, 310S, 310H,317, 317L, 321, 321H, 347, 347H, 201, 202, 904L
Carbon Steel Orifice Flanges	ASTM A105	Gr. F42,46,52,56,60,65,70
Alloy Steel Orifice Flanges	ASTM A182	F1,F5,F9,F11,F22,F91
Nickel Alloy Orifice Flanges	ASTM SB564, SB160, SB472, SB162	Nickel 200 (UNS No. N02200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No. N10276), Alloy 20 (UNS No. N08020),
Copper Alloys Orifice Flanges	ASTM SB 61 , SB62 , SB151 , SB152	UNS No. C 70600 (Cu-Ni 90/10), C 71500 (Cu-Ni 70/30), UNS No. C 10100, 10200, 10300, 10800, 12000, 12200,
Low Temperature Carbon Steel Orifice Flanges	ASTM A350	LF2 , LF3
Duplex Steel Orifice Flanges	ASTM A182, A240	UNS F 44, F 45, F51, F 53, F 55, F 60, F 61

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Raised Face Flange

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Approx. Price: Rs 360 / NumberGet Latest Price

Product Brochure

Product Details:

Minimum Order Quantity	10 Number
Size	1-5 inch, >30 inch, 0-1 inch, 10-20 inch, 20-30 inch, 5-10 inch
Material Standard	ANSI B16.5, ASTM A105, ASTM A351, ASTM A182
Structure	Round
Material	Stainless Steel
Type	Threaded Connection Flange

Specifications covering the manufacture and dimensions of flanges:

Astm Specifications: ASTM specifications regulate approved raw materials for which flanges can be made and specifications .
For stainless flanges are: ASTM A.182 – Forged or Rolled Alloy Steel Pipe Flanges & Fittings for high temperature service.
Ansi and Mss Specifications: The standards govern the dimensions and tolerances to which fitting are manufactured.

Other Detail:

ANSI B. 16.5	Steel Pipe Flanges and Flanged Fittings (½ inch to 24 inch nominal diameter)
MSS SP.6	Flange Facings
MSS SP.25	Marking of flanges
MSS SP.39	Bolts and Nuts for Flanges
MSS SP.44	Large Diameter Pipeline Flanges. (Over 24 inch dia)
API-605	Large Diameter Flanges for petroleum Usage. (Over 24 inch dia)

The ASME Code is not a standard as such but section VIII provides the procedure for calculating dimensions For all pressurised vessels flanges. The following are not flange specifications but they influence the manufacture of forged steel flange

ANSI B. 31.10	Code for Pressure Piping
ANSI B. 31.3	Petroleum Refinery Piping
ANSI B. 31.4	Oil Transportation Piping
ANSI B. 31.5	Refrigeration Piping Systems
ANSI B. 31.7	Nuclear Power Piping
ANSI B. 31.8	Gas Transmission and Distribution Piping systems
ANSI B. 36.10	Standard for Wrought Steel pipe
ANSI B. 36.19	Standard for Stainless Steel Pipe
ANSI B. 16.10	Valve Dimensions Face & End

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Pay Mode Terms: L/C (Letter of Credit),T/T (Bank Transfer)
Port of Dispatch: JNPT

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Groove And Tongue Flange

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Approx. Price: Rs 1,200 / PieceGet Latest Price

Product Details:

Minimum Order Quantity	1 Piece
Size	1/2'-78'
Material	Steel
Color	Silver
Type	Welding Flange

The Groove and Tongue faces of this flanges must be matched. One flange face has a raised ring (Tongue) machined onto the flange face while the mating flange has a matching depression (Groove) machined into it’s face. Tongue-and-groove facings are standardized in both large and small types. They differ from male-and-female in that the inside diameters of the tongue-and-groove do not extend into the flange base, thus retaining the gasket on its inner and outer diameter. These are commonly found on pump covers and Valve Bonnets. Tongue-and-groove joints also have an advantage in that they are self-aligning and act as a reservoir for the adhesive. The scarf joint keeps the axis of loading in line with the joint and does not require a major machining operation. General flange faces such as the RTJ, T&G and the F&M shall never be bolted together. The reason for this is that the contact surfaces do not match and there is no gasket that has one type on one side and another type on the other side.

Other Details:

Material of Construction	Standard	Grades
Stainless Steel Tongue & groove Flanges	ASTM A182 , A240	F 304, 304L, 304H, 316, 316Ti, 316H, 316L, 316LN, 309S, 309H, 310S, 310H,317, 317L, 321, 321H, 347, 347H, 201, 202, 904L
Carbon Steel Tongue & groove Flanges	ASTM A105	Gr. F42,46,52,56,60,65,70
Alloy Steel Tongue & groove Flanges	ASTM A182	F1,F5,F9,F11,F22,F91
Nickel Alloy Tongue & groove Flanges	ASTM SB564, SB160, SB472, SB162	Nickel 200 (UNS No. N02200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No. N10276), Alloy 20 (UNS No. N08020),
Copper Alloys Tongue & groove Flanges	ASTM SB 61 , SB62 , SB151 , SB152	UNS No. C 70600 (Cu-Ni 90/10), C 71500 (Cu-Ni 70/30), UNS No. C 10100, 10200, 10300, 10800, 12000, 12200,
Low Temperature Carbon Steel Tongue & groove Flanges	ASTM A350	LF2 , LF3
Duplex Steel Tongue & groove Flanges	ASTM A182, A240	UNS F 44, F 45, F51, F 53, F 55, F 60, F 61

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Outside Diameter ≤ 24 = 1.6 mm \| > 24 = ± 3.2 mm	Inside Diameter ≤ 10 = ± 0.8 mm \| ≥ 12 = + 1.6 mm / – 0 mm
Diameter of Contact Face 1.6 mm Raised Face = ± 0.8 mm 6.35 mm Raised Face, Tongue & Groove / Male-Female = ± 0.4 mm	Outside Diameter of Hub ≤ 12 = + 2.4 mm / – 1.6 mm \| ≥ 14 = ± 3.2 mm
Diameter of Counterbore Same as for Inside Diameter	Drilling Bolt Circle = 1.6 mm \| Bolt Hole Spacing = ± 0.8 mm Eccentricity of Bolt Circle with Respect to Facing ≤ 2½ = 0.8 mm max. \| ≥ 3 = 1.6 mm max.
Thickness ≤ 18 = + 3.2 mm / – 0 \| ≥ 20 = + 4.8 mm / – 0	Length thru Hub ≤ 18 = + 3.2 mm / – 0.8 mm \| ≥ 20 = + 4.8 mm / – 1.6 mm

Outside Diameter ≤ 24 = 1.6 mm \| > 24 = ± 3.2 mm	Inside Diameter not applicable
Diameter of Contact Face 1.6 mm Raised Face = ± 0.8 mm 6.35 mm Raised Face, Tongue & Groove / Male-Female = ± 0.4 mm	Outside Diameter of Hub ≤ 12 = + 2.4 mm / – 1.6 mm \| ≥ 14 = ± 3.2 mm
Diameter of Counterbore not applicable	Drilling Bolt Circle = 1.6 mm \| Bolt Hole Spacing = ± 0.8 mm Eccentricity of Bolt Circle with Respect to Facing ≤ 2½ = 0.8 mm max. \| ≥ 3 = 1.6 mm max.
Thickness ≤ 18 = + 3.2 mm / – 0 \| ≥ 20 = + 4.8 mm / – 0	Length thru Hub ≤ 18 = + 3.2 mm / – 0.8 mm \| ≥ 20 = + 4.8 mm / – 1.6 mm

Outside Diameter ≤ 24 = 1.6 mm \| > 24 = ± 3.2 mm	Inside Diameter ≤ 10 = ± 0.8 mm \| 12 thru 18 = 1.6 mm \| ≥ 20 = + 3.2 mm / – 1.6 mm
Diameter of Contact Face 1.6 mm Raised Face = ± 0.8 mm 6.35 mm Raised Face, Tongue & Groove / Male-Female = ± 0.4 mm	Diameter of Hub at Base ≤ 24 = 1.6 mm \| > 24 = ± 3.2 mm
Diameter of Hub at Point of Welding ≤ 5 = + 2.4 mm / – 0.8 mm \| ≥ 6 = + 4.0 mm / – 0.8 mm	Drilling Bolt Circle = 1.6 mm \| Bolt Hole Spacing = ± 0.8 mm Eccentricity of Bolt Circle with Respect to Facing ≤ 2½ = 0.8 mm max. \| ≥ 3 = 1.6 mm max
Thickness ≤ 18 = + 3.2 mm / – 0 \| ≥ 20 = + 4.8 mm / – 0	Length thru Hub ≤ 10 = 1.6 mm \| ≥ 12 = ± 3.2 mm

Outside Diameter ≤ 24 = 1.6 mm \| > 24 = ± 3.2 mm	Inside Diameter ≤ 10 = ± 0.8 mm \| ≥ 12 = + 1.6 mm / – 0 mm
Diameter of Contact Face 1.6 mm Raised Face = ± 0.8 mm 6.35 mm Raised Face, Tongue & Groove / Male-Female = ± 0.4 mm	Outside Diameter of Hub ≤ 12 = + 2.4 mm / – 1.6 mm \| ≥ 14 = ± 3.2 mm
Diameter of Counterbore Same as for Inside Diameter	Drilling Bolt Circle = 1.6 mm \| Bolt Hole Spacing = ± 0.8 mm Eccentricity of Bolt Circle with Respect to Facing ≤ 2½ = 0.8 mm max. \| ≥ 3 = 1.6 mm max.
Thickness ≤ 18 = + 3.2 mm / – 0 \| ≥ 20 = + 4.8 mm / – 0	Length thru Hub ≤ 18 = + 3.2 mm / – 0.8 mm \| ≥ 20 = + 4.8 mm / – 1.6 mm

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