Stainless Steel Threaded Flange, Threaded Pipe Flange Manufacturer

Stainless Steel Threaded Flange

Stainless steel threaded flanges, also known as screwed flanges, are used to connect pipes with threaded ends. They are ideal for high-pressure applications and can be assembled without welding, making them suitable for systems where welding is not possible or desirable.

1.Type: Slip-On, Welding Neck, Blind, Socket Welding, Threaded, Lap Joint and Plate etc;

2.Standard: ANSI, JIS, DIN, EN;

3.Material: 304/304L, 316/316L, 316H, 310, F321 F44 (UNS S31254)

Alloy Steel flanges ASTM A182 F1, F5a, F9, F11, F12, F22, F91;

4.Wall Thickness: Sch10, Sch20 , Sch30, STD, Sch40, XS,Sch80, Sch100, Sch120, Sch140, XXS;

5.Pressure Rating: Class 150LBS, 300LBS, 600LBS, 900LBS, 1500LBS, 2000LBS, 3000LBS, 6000LBS, 9000 LBS;

6.Size: 1/2" - 24";

7.Surface treatment: antirust oil, black / yellow / transparent / electric galvanized / hot galvanized.

Stainless Steel Threaded Flange structure

forged steel flange dimensions class150

	Nominal size	Outside diam. of flange	Thick. of flange	Diam. of raised face	Diam of hub at base	Length thru hub	Min. thread lenght	Min. counter	No. of holes	Diam. of holes	Diam. of bolts	Diam. of bolt circle	Approx. weight pounds Kg
		O	C	R	X	Y	T	Q
in.	1/2"	3.5	0.44	1.38	1.19	0.62	0.62		4	0.62	1/2	2.38	1
mm.		88.9	11.2	35.1	30.2	15.7	15.7			15.7	12.7	60.5	0.5
in.	3/4"	3.88	0.5	1.69	1.5	0.62	0.62		4	0.62	1/2	2.75	2
mm.		98.6	12.7	42.9	38.1	15.7	15.7			15.7	12.7	69.9	1
in.	1"	4.25	0.56	2	1.94	0.69	0.69		4	0.62	1/2	3.12	2
mm.		108	14.2	50.8	49.3	17.5	17.5			15.7	12.7	79.2	1
in.	1 1/4"	4.62	0.62	2.5	2.31	0.81	0.81		4	0.62	1/2	3.5	3
mm.		117.3	15.7	63.5	58.7	20.6	20.6			15.7	12.7	88.9	1
in.	1 1/2"	5	0.69	2.88	2.56	0.88	0.88		4	0.62	1/2	3.88	3
mm.		127	17.5	73.2	65	22.4	22.4			15.7	12.7	98.6	1
in.	2"	6	0.75	3.62	3.06	1	1		4	0.75	5/8	4.75	5
mm.		152.4	19.1	91.9	77.7	25.4	25.4			19.1	15.9	120.7	2
in.	2 1/2"	7	0.88	4.12	3.56	1.12	1.12		4	0.75	5/8	5.5	7
mm.		177.8	22.4	104.6	90.4	28.4	28.4			19.1	15.9	139.7	3
in.	3"	7.5	0.94	5	4.25	1.19	1.19		4	0.75	5/8	6	8
mm.		190.5	23.9	127	108	30.2	30.2			19.1	15.9	152.4	4
in.	3 1/2"	8.5	0.94	5.5	4.81	1.25	1.25		8	0.75	5/8	7	11
mm.		215.9	23.9	139.7	122.2	31.8	31.8			19.1	15.9	177.8	5
in.	4"	9	0.94	6.19	5.31	1.31	1.31		8	0.75	5/8	7.5	13
mm.		228.6	23.9	157.2	134.9	33.3	33.3			19.1	15.9	190.5	6
in.	5"	10	0.94	7.31	6.44	1.44	1.44		8	0.88	3/4	8.5	15
mm.		254	23.9	185.7	163.6	36.6	36.6			22.4	19.1	215.9	7
in.	6"	11	1	8.5	7.56	1.56	1.56		8	0.88	3/4	9.5	19
mm.		279.4	25.4	215.9	192	39.6	39.6			22.4	19.1	241.3	9
in.	8"	13.5	1.12	10.62	9.69	1.75	1.75		8	0.88	3/4	11.75	30
mm.		342.9	28.4	269.7	246.1	44.5	44.5			22.4	19.1	298.5	14
in.	10"	16	1.19	12.75	12	1.94	1.94		12	1	7/8	14.25	43
mm.		406.4	30.2	323.9	304.8	49.3	49.3			25.4	22.2	362	20
in.	12"	19	1.25	15	14.38	2.19	2.19		12	1	7/8	17	64
mm.		482.6	31.8	381	365.3	55.6	55.6			25.4	22.2	431.8	29
in.	14"	21	1.38	16.25	15.75	2.25	2.25		12	1.12	1	18.75	90
mm.		533.4	35.1	412.8	400.1	57.2	57.2			28.4	25.4	476.3	41
in.	16"	23.5	1.44	18.5	18	2.5	2.5		16	1.12	1	21.25	98
mm.		596.9	36.6	469.9	457.2	63.5	63.5			28.4	25.4	539.8	44
in.	18"	25	1.56	21	19.88	2.69	2.69		16	1.25	1.13	22.75	130
mm.		635	39.6	533.4	505	68.3	68.3			31.8	28.6	577.9	59
in.	20"	27.5	1.69	23	22	2.88	2.88		20	1.25	1 1/8	25	165
mm.		698.5	42.9	584.2	558.8	73.2	73.2			31.8	28.6	635	75
in.	24"	32	1.88	27.25	26.12	3.25	3.25		20	1.38	1 1/4	29.5	220
mm.		812.8	47.8	692.2	663.4	82.6	82.6			35.1	31.8	749.3	100

forged steel flange dimensions class300

	Nominal size	Outside diam. of flange	Thick. of flange	Diam. of raised face	Diam of hub at base	Length thru hub	Min. thread length	Min. counter-	No. of holes	Diam. of holes	Diam. of bolts	Diam. of bolt circle	Approx. weight pounds Kg
	Nominal size	Outside diam. of flange	Thick. of flange	Diam. of raised face	Diam of hub at base	Length thru hub	Min. thread length	bore	No. of holes	Diam. of holes	Diam. of bolts	Diam. of bolt circle	Approx. weight pounds Kg
		O	C	R	X	Y	T	Q
in.	1/2"	3.75	0.56	1.38	1.5	0.88	0.62	0.93	4	0.62	1/2	2.62	2
mm.		95.3	14.2	35.1	38.1	22.4	15.7	23.6		15.7	12.7	66.5	1
in.	3/4"	4.62	0.62	1.69	1.88	1	0.62	1.14	4	0.75	5/8	3.25	3
mm.		117.3	15.7	42.9	47.8	25.4	15.7	29		19.1	15.9	82.6	1
in.	1"	4.88	0.69	2	2.12	1.06	0.69	1.41	4	0.75	5/8	3.5	3
mm.		124	17.5	50.8	53.8	26.9	17.5	35.8		19.1	15.9	88.9	1
in.	1 1/4"	5.25	0.75	2.5	2.5	1.06	0.81	1.75	4	0.75	5/8	3.88	4
mm.		133.4	19.1	63.5	63.5	26.9	20.6	44.5		19.1	15.9	98.6	2
in.	1 1/2"	6.12	0.81	2.88	2.75	1.19	0.88	1.99	4	0.88	3/4	4.5	6
mm.		155.4	20.6	73.2	69.9	30.2	22.4	50.5		22.4	19.1	114.3	3
in.	2"	6.5	0.88	3.62	3.31	1.31	1.12	2.5	8	0.75	5/8	5	7
mm.		165.1	22.4	91.9	84.1	33.3	28.4	63.5		19.1	15.9	127	3
in.	2 1/2"	7.5	1	4.12	3.94	1.5	1.25	3	8	0.88	3/4	5.88	10
mm.		190.5	25.4	104.6	100.1	38.1	31.8	76.2		22.4	19.1	149.4	5
in.	3"	8.25	1.12	5	4.62	1.69	1.25	3.63	8	0.88	3/4	6.62	13
mm.		209.6	28.4	127	117.3	42.9	31.8	92.2		22.4	19.1	168.1	6
in.	3 1/2"	9	1.19	5.5	5.25	1.75	1.44	4.13	8	0.88	3/4	7.25	17
mm.		228.6	30.2	139.7	133.4	44.5	36.6	104.9		22.4	19.1	184.2	8
in.	4"	10	1.25	6.19	5.75	1.88	1.44	4.63	8	0.88	3/4	7.88	22
mm.		254	31.8	157.2	146.1	47.8	36.6	117.6		22.4	19.1	200.2	10
in.	5"	11	1.38	7.31	7	2	1.69	5.69	8	0.88	3/4	9.25	28
mm.		279.4	35.1	185.7	177.8	50.8	42.9	144.5		22.4	19.1	235	13
in.	6"	12.5	1.44	8.5	8.12	2.06	1.81	6.75	12	0.88	3/4	10.62	39
mm.		317.5	36.6	215.9	206.2	52.3	46	171.5		22.4	19.1	269.7	18
in.	8"	15	1.62	10.62	10.25	2.44	2	8.75	12	1	7/8	13	58
mm.		381	41.1	269.7	260.4	62	50.8	222.3		25.4	22.2	330.2	26
in.	10"	17.5	1.88	12.75	12.62	2.62	2.19	10.88	16	1.12	1	15.25	81
mm.		444.5	47.8	323.9	320.5	66.5	55.6	276.4		28.4	25.4	387.4	37
in.	12"	20.5	2	15	14.75	2.88	2.38	12.94	16	1.25	1 1/8	17.75	115
mm.		520.7	50.8	381	374.7	73.2	60.5	328.7		31.8	28.6	450.9	52
in.	14"	23	2.12	16.25	16.75	3	2.5	14.19	20	1.25	1 1/8	20.25	165
mm.		584.2	53.8	412.8	425.5	76.2	63.5	360.4		31.8	28.6	514.4	75
in.	16"	25.5	2.25	18.5	19	3.25	2.69	16.19	20	1.38	1 1/4	22.5	190
mm.		647.7	57.2	469.9	482.6	82.6	68.3	411.2		35.1	31.8	571.5	86
in.	18"	28	2.38	21	21	3.5	2.75	18.19	24	1.38	1 1/4	24.75	250
mm.		711.2	60.5	533.4	533.4	88.9	69.9	462		35.1	31.8	628.7	113
in.	20"	30.5	2.5	23	23.12	3.75	2.88	20.19	24	1.38	1 1/4	27	315
mm.		774.7	63.5	584.2	587.2	95.3	73.2	512.8		35.1	31.8	685.8	143
in.	24"	36	2.75	27.25	27.62	4.19	3.25	24.19	24	1.62	1 /2	32	475
mm.		914.4	69.9	692.2	701.5	106.4	82.6	614.4		41.1	38.1	812.8	215

forged steel flange dimensions class600

	Nominal size	Outside diam. of flange	Thick. of flange	Diam. of raised face	Diam of hub at base	Length thru hub	Min. thread length	Min. counter-	No. of holes	Diam. of holes	Diam. of bolts	Diam. of bolt circle	Approx. weight pounds Kg
	Nominal size	Outside diam. of flange	Thick. of flange	Diam. of raised face	Diam of hub at base	Length thru hub	Min. thread length	bore	No. of holes	Diam. of holes	Diam. of bolts	Diam. of bolt circle	Approx. weight pounds Kg
		O	C	R	X	Y	T	Q
in.	1/2"	3.75	0.56	1.38	1.5	0.88	0.62	0.93	4	0.62	1/2	2.62	2
mm.		95.3	14.2	35.1	38.1	22.4	15.7	23.6		15.7	12.7	66.5	1
in.	3/4"	4.62	0.62	1.69	1.88	1	0.62	1.14	4	0.75	5/8	3.25	3
mm.		117.3	15.7	42.9	47.8	25.4	15.7	29		19.1	15.9	82.6	1
in.	1"	4.88	0.69	2	2.12	1.06	0.69	1.41	4	0.75	5/8	3.5	4
mm.		124	17.5	50.8	53.8	26.9	17.5	35.8		19.1	15.9	88.9	2
in.	1 1/4"	5.25	0.81	2.5	2.5	1.12	0.81	1.75	4	0.75	5/8	3.88	5
mm.		133.4	20.6	63.5	63.5	28.4	20.6	44.5		19.1	15.9	98.6	2
in.	1 1/2"	6.12	0.88	2.88	2.75	1.25	0.88	1.99	4	0.88	3/4	4.5	7
mm.		155.4	22.4	73.2	69.9	31.8	22.4	50.5		22.4	19.1	114.3	3
in.	2"	6.5	1	3.62	3.31	1.44	1.12	2.5	8	0.75	5/8	5	9
mm.		165.1	25.4	91.9	84.1	36.6	28.4	63.5		19.1	15.9	127	4
in.	2 1/2"	7.5	1.12	4.12	3.94	1.62	1.25	3	8	0.88	3/4	5.88	13
mm.		190.5	28.4	104.6	100.1	41.1	31.8	76.2		22.4	19.1	149.4	6
in.	3"	8.25	1.25	5	4.62	1.81	1.38	3.63	8	0.88	3/4	6.62	16
mm.		209.6	31.8	127	117.3	46	35.1	92.2		22.4	19.1	168.1	7
in.	3 1/2"	9	1.38	5.5	5.25	1.94	1.56	4.13	8	1	7/8	7.25	21
mm.		228.6	35.1	139.7	133.4	49.3	39.6	104.9		25.4	22.2	184.2	10
in.	4"	10.75	1.5	6.19	6	2.12	1.62	4.63	8	1	7/8	8.5	37
mm.		273.1	38.1	157.2	152.4	53.8	41.1	117.6		25.4	22.2	215.9	17
in.	5"	13	1.75	7.31	7.44	2.38	1.88	5.69	8	1.12	1	10.5	63
mm.		330.2	44.5	185.7	189	60.5	47.8	144.5		28.4	25.4	266.7	29
in.	6"	14	1.88	8.5	8.75	2.62	2	6.75	12	1.12	1	11.5	80
mm.		355.6	47.8	215.9	222.3	66.5	50.8	171.5		28.4	25.4	292.1	36
in.	8"	16.5	2.19	10.62	10.75	3	2.25	8.75	12	1.25	11/8	13.75	115
mm.		419.1	55.6	269.7	273.1	76.2	57.2	222.3		31.8	28.6	349.3	52
in.	10"	20	2.5	12.75	13.5	3.38	2.56	10.88	16	1.38	1 1/4	17	170
mm.		508	63.5	323.9	342.9	85.9	65	276.4		35.1	31.8	431.8	77
in.	12"	22	2.62	15	15.75	3.62	2.75	12.94	20	1.38	1 1/4	19.25	200
mm.		558.8	66.5	381	400.1	91.9	69.9	328.7		35.1	31.8	489	91
in.	14"	23.75	2.75	16.25	17	3.69	2.88	14.19	20	1.5	1 3/8	20.75	230
mm.		603.3	69.9	412.8	431.8	93.7	2.9	360.4		38.1	34.9	527.1	104
in.	16"	27	3	18.5	19.5	4.19	3.06	16.19	20	1.62	1 1/2	23.75	330
mm.		685.8	76.2	469.9	495.3	106.4	77.7	411.2		41.1	38.1	603.3	150
in.	18"	29.25	3.25	21	21.5	4.62	3.12	18.19	20	1.75	1.63	25.75	400
mm.		743	82.6	533.4	546.1	117.3	79.2	462		44.5	41.3	654.1	181
in.	20"	32	3.5	23	24	5	3.25	20.19	24	1.75	1 5/8	28.5	510
mm.		812.8	88.9	584.2	609.6	127	82.6	512.8		44.5	41.3	723.9	231
in.	24"	37	4	27.25	28.25	5.5	3.62	24.19	24	2	1 7/8	33	730
mm.		939.8	101.6	692.2	717.6	139.7	91.9	614.4		50.8	47.6	838.2	331

Product Introduction

Mechanical Properties (depending on the grade of stainless steel)

Property	ASTM A182 F304	ASTM A182 F316	ASTM A182 F321	ASTM A182 F347
Tensile Strength	75,000 psi (515 MPa)	75,000 psi (515 MPa)	75,000 psi (515 MPa)	75,000 psi (515 MPa)
Yield Strength	30,000 psi (205 MPa)	30,000 psi (205 MPa)	30,000 psi (205 MPa)	30,000 psi (205 MPa)
Elongation	35%	35%	35%	35%

Dimensional Range

Size Range: 1/2" to 24" (DN 15 to DN 600)
Pressure Rating: Class 150, 300, 600, 900, 1500 (PN 10 to PN 250)
Standards: ANSI/ASME B16.5, EN 1092-1, DIN, JIS, BS

Features

Connection: Threaded (Screwed)
Thread Type: NPT (National Pipe Thread) or BSP (British Standard Pipe) as specified
Advantages: Easy assembly and disassembly, no welding required

Application Fields

Industry	Example Applications
Oil and Gas	Pipelines, refineries, offshore platforms
Petrochemical	Chemical processing plants, storage tanks
Power Generation	Power plants, nuclear facilities
Water Treatment	Water and wastewater treatment plants
Pharmaceutical	Pharmaceutical production facilities
Food and Beverage	Food processing and manufacturing
Shipbuilding	Marine and shipbuilding industries
Construction	Structural applications, HVAC systems

Ordering Information

Quantity: Provide estimated order quantity.
Delivery: Specify desired lead time and delivery schedule.

If you need more detailed information or assistance with a particular flange, please provide the necessary specifications and requirements.

Customer First

Comprehensive product customization
Secondary Quality Testing Before Leaving The Factory
Increased Capacity Based on Customer Demand - Fast Delivery
Provide a Customized Service Process That Dits The Needs of Our Customer

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Product Introduction

Mechanical Properties (depending on the grade of stainless steel)

Dimensional Range

Features

Application Fields

Ordering Information

Customer First

Inquiry Now

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