Stainless Steel Threaded Flange

GNEE steel is leading high-quality Stainless Steel Threaded Flanges Manufacturer in China. These Stainless Steel Threaded Flanges are ideal for applications that require the use of tiny high-pressure pipes. Stainless Steel Threaded Flanges has been designed using high-grade raw materials and advanced technology in accordance with national and international industry standards. Our ASTM A182 Threaded Flange and other goods come with a standard quality.

We offer Stainless Steel Threaded Flange in various sizes and shapes on hand to meet the needs of our customers. The pipe is placed into the socket end and the fillet weld is made around the top when attaching socket weld Stainless Steel Threaded Flanges. Because the bore of the pipe and the Flange are the same, this assures proper gas and fluid flow inside the piping system. We offer this Stainless Steel Threaded Flanges in a variety of materials, dimensions, and sizes. Fabricability, weldability, fatigue strength, and corrosion resistance are all advantages of our Stainless Steel Threaded Flanges. Due to their outstanding stress corrosion cracking resistance, these Flanges may perform effectively in acidic and corrosive conditions.

Our Threaded Flanges division includes an integrated forging units that Manufactures a wide range of Flanges in a variety of specifications, including ASME/ANSI, EN, DIN, AFNOR, AWWA, GOST, BS, JIS, AS, MSS, SA, UNI, and others. For industrial use, we create either Forged Flanges Manufacturer in India or Plate Flanges Manufacturer in China in sizes ranging from 12" to 40". We are a very premium value answer for all of your Flanges wants because of our greater capability range, superior quality, and unsurpassed client satisfaction service. We also have a reputation for being one of the largest suppliers of Long Weld Flanges, Lap Joint Flanges, Sockets Weld Flanges .

Stainless Steel Threaded Flange Manufacturer - Specifications

Specification :	Stainless Steel Threaded Flange
Dimensions:	ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom DrawingsANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
Size:	1/2" (15 NB) to 48" (1200NB)
Class:	150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6,10, 16, 25, 40 Etc.
DIN:	DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636,DIN2637, DIN2638, DIN2673
BS:	BS4504 , BS4504, BS1560, BS10
Coating/Surface Treatment:	Antirust Paint, Oil Black Paint, Yellow Transparent, Zinc Plated, Cold and Hot Dip Galvanized
Flange Face Type :	Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)

ANSI/ASME B16.5 THREADED FLANGE DIMENSIONS

Pipe Size (NPS)	Outside Diameter of Flange A	Diameter of Raised Face B	Thickness of Flange C	Diameter of Hub at Base J	Length of Hub L	Minimum Thread Length N	Number of Bolt Holes	Approx. Weight (Lbs.)
1/2	3 1/2	1 3/8	7/16	1 3/16	5/8	5/8	4	2
3/4	3 7/8	1 11/16	1/2	1 1/2	5/8	5/8	4	2
1	4 1/4	2	9/16	1 15/16	11/16	11/16	4	2
1 1/4	4 5/8	2 1/2	5/8	2 5/16	13/16	13/16	4	3
1 1/2	5	2 7/8	11/16	2 9/16	7/8	7/8	4	3
2	6	3 5/8	3/4	3 7/16	1	1	4	5
2 1/2	7	4 1/8	7/8	3 9/16	1 1/8	1 1/8	4	7
3	7 1/2	5	15/16	4 1/4	1 3/16	1 3/16	4	8
3 1/2	8 1/2	5 1/2	15/16	4 13/16	1 1/4	1 1/4	8	11
4	9	6 3/16	15/16	5 5/16	1 5/16	1 5/16	8	13
5	10	7 5/16	15/16	6 7/16	1 7/16	1 7/16	8	15
6	11	8 1/2	1	7 9/16	1 9/16	1 9/16	8	19
8	13 1/2	10 5/8	1 1/8	9 11/16	1 3/4	1 3/4	8	30
10	16	12 3/4	1 3/16	12	1 15/16	1 15/16	12	43
12	19	15	1 1/4	14 3/8	2 3/16	2 3/16	12	64
14	21	16 1/4	1 3/8	15 3/4	2 1/4	2 1/4	12	85
16	23 1/2	18 1/2	1 7/16	18	2 1/2	2 1/2	16	93
18	25	21	1 9/16	19 7/8	2 11/16	2 11/16	16	120
20	27 1/2	23	1 11/16	22	2 7/8	2 7/8	20	155
22	29 1/2	25 1/4	1 13/16	24	3 1/8	3 1/8	20	159
24	32	27 1/4	1 7/8	26 1/8	3 1/4	3 1/4	20	210

NPS 1/2 Threaded Flange Dimensions

CL	150	300	600	900	1500	2500
DIA A	30	38	38	38	38	43
DIA D	90	95	95	120	120	135
THK B	9.6	12.7	14.3	22.3	22.3	30.2
THK B	11.2	14.3	20.7	28.7	28.7	36.6
DIA G	35.1	35.1	35.1	35.1	35.1	35.1
DIA K	60.3	66.7	66.7	82.6	82.6	88.9
H	14	21	22	32	32	40
H	15.6	22.6	28.4	38.4	38.4	46.4
NO. L	4	4	4	4	4	4
DIA L	15.9	15.9	15.9	22.2	22.2	22.2
Stud Bolts Diameter x Length
DIA (in)	1/2	1/2	1/2	3/4	3/4	3/4
Len mm	55	65	75	110	110	120

NPS 3/4 Threaded Flange Dimensions

CLASS	150	300	600	900	1500	2500
DIA A	38	48	48	44	44	51
DIA D	100	115	115	130	130	140
THK B	11.2	14.3	15.9	25.4	25.4	31.8
THK B	12.8	15.9	22.3	31.8	31.8	38.2
DIA G	42.9	42.9	42.9	42.9	42.9	42.9
DIA K	69.9	82.6	82.6	88.9	88.9	95.2
H	14	24	25	35	35	43
H	15.6	25.6	31.4	41.4	41.4	49.4
NO. L	4	4	4	4	4	4
DIA L	15.9	19.1	19.1	22.2	22.2	22.2
Stud Bolts Diameter x Length
DIA (in)	1/2	5/8	5/8	3/4	3/4	3/4
Len mm	65	75	90	115	115	125

NPS 3/4 Threaded Flange Dimension

CLASS	150	300	600	900	1500	2500
DIA A	38	48	48	44	44	51
DIA D	100	115	115	130	130	140
THK B	11.2	14.3	15.9	25.4	25.4	31.8
THK B	12.8	15.9	22.3	31.8	31.8	38.2
DIA G	42.9	42.9	42.9	42.9	42.9	42.9
DIA K	69.9	82.6	82.6	88.9	88.9	95.2
H	14	24	25	35	35	43
H	15.6	25.6	31.4	41.4	41.4	49.4
NO. L	4	4	4	4	4	4
DIA L	15.9	19.1	19.1	22.2	22.2	22.2
Stud Bolts Diameter x Length
DIA (in)	1/2	5/8	5/8	3/4	3/4	3/4
Len mm	65	75	90	115	115	125

NPS 1 Threaded Flange Dimensions

CLASS	150	300	600	900	1500	2500
DIA A	49.2	54	54	52	52	57
DIA D	110	125	125	150	150	160
THK B	12.7	15.9	17.5	28.6	28.6	35
THK B	14.3	17.5	23.9	35	35	41.4
DIA G	50.8	50.8	50.8	50.8	50.8	50.8
DIA K	79.4	88.9	88.9	101.6	101.6	108
H	16	25	27	41	41	48
H	17.6	26.6	33.4	47.4	47.4	54.4
NO. L	4	4	4	4	4	4
DIA L	15.9	19.1	19.1	25.4	25.4	25.4
Stud Bolts Diameter x Length
DIA (in)	1/2	5/8	5/8	7/8	7/8	7/8
Len mm	65	75	90	125	125	140

NPS 1.1/4 Threaded Flange Dimensions

CLASS	150	300	600	900	1500	2500
DIA A	59	64	64	64	64	73
DIA D	115	135	135	160	160	185
THK B	14.3	17.5	20.7	28.6	28.6	38.1
THK B	15.9	19.1	27.1	35	35	44.5
DIA G	63.5	63.5	63.5	63.5	63.5	63.5
DIA K	88.9	98.4	98.4	111.1	111.1	130.2
H	19	25	29	41	41	52
H	20.6	26.6	35.4	47.4	47.4	58.4
NO. L	4	4	4	4	4	4
DIA L	15.9	19.1	19.1	25.4	25.4	28.6
Stud Bolts Diameter x Length
DIA (in)	1/2	5/8	5/8	7/8	7/8	1
Len mm	70	85	95	125	125	150

NPS 1.1/2 Threaded Flange Dimensions

CLASS	150	300	600	900	1500	2500
DIA A	65	70	70	70	70	79
DIA D	125	155	155	180	180	205
THK B	15.9	19.1	22.3	31.8	31.8	44.5
THK B	17.5	20.7	28.7	38.2	38.2	50.9
DIA G	73.2	73.2	73.2	73.2	73.2	73.2
DIA K	98.4	114.3	114.3	123.8	123.8	146
H	21	29	32	44	44	60
H	22.6	31.6	38.4	50.4	50.4	66.4
NO. L	4	4	4	4	4	4
DIA L	15.9	22.2	22.2	28.6	28.6	31.8
Stud Bolts Diameter x Length
DIA (in)	1/2	3/4	3/4	1	1	1.1/8
Len mm	70	90	110	140	140	170

Notes:

Dimensions are in millimeters unless otherwise indicated.
The length of the Stud Bolt does not include the height of the chamfers (points).

ASME B16.5 Threaded Flange Pressure Ratings

Maximum allowable non-shock pressure (psig) and temperature ratings for threaded flange ansi b16.5 and flanged fittings according the American National Standard ANSI B16.5 – 1988.

Maximum Allowable non-shock Pressure (psig)
Temperature (oF)	Pressure Class (lb)
	150	300	400	600	900	1500	2500
	Hydrostatic Test Pressure (psig)
	450	1125	1500	2225	3350	5575	9275
-20 to 100	290	750	1000	1500	2250	3750	6250
200	260	750	1000	1500	2250	3750	6250
300	230	730	970	1455	2185	3640	6070
400	200	705	940	1405	2110	3520	5865
500	170	665	885	1330	1995	3325	5540
600	140	605	805	1210	1815	3025	5040
650	125	590	785	1175	1765	2940	4905
700	110	555	740	1110	1665	2775	4630
750	95	505	675	1015	1520	2535	4230
800	80	410	550	825	1235	2055	3430
850	65	320	425	640	955	1595	2655
900	50	225	295	445	670	1115	1855
950	35	135	185	275	410	685	1145
1000	20	85	115	170	255	430	715

Convenient Installation and Maintenance

The threaded flange is screwed to the threaded pipe by the thread, which is processed in the inner hole of the flange. So It does not need to be welded. Therefore, it became so convenient for installation and maintenance comparing with other flange types, such as slip on flange, socket weld flange etc.

Application in Special Circumstance

Threaded flanges are used where it is difficult to weld or cannot be welded, such as threaded flanges used to protect the galvanized layer of pipes. In addition, It should not be used on pipes with repeated temperature fluctuations or above 260 ℃ and below -45℃ as well.

In ASME B31.3 standard it defines:

Where steel pipe is threaded and used for steam service above 250 psi or for water service above 100 psi with water temperatures above 220° F, the pipe shall be seamless and have a thickness at least equal to schedule 80 of ASME B36.10.

Measurement

If threaded pipe flange can be measured accurately, following data shall be required:
O: Outside Diameter of flange
C: Thickness of flange
R: Diameter of raised face
X: Hub Diameter at base
Y: Length through hub
T: Minimum thread length
Q: Minimum diameter of bolt circle

Applications