API 6a 6b 6bx flanges - API Blind/ Weld Neck Flange manufacturer

Check API 6A Flanges and API 650 Flange Dimensions

API 6a Flange material consists of many other elements such as stainless steel, hastelloy, monel, inconel, titanium, duplex steel, nickel alloy, copper nickel and many more. These are of ring type and are designed with raised face. API 5I flange material includes many chemical and mechanical properties like grades, chemical composition, yield strength, tensile strength and lot more. These are used in petroleum pipeline and natural gas. The size of this is 1/2” to 24” in 150lbs, 300lbs and 600lbs.

API Flange

Unique specification and dimension is provided and based on that the manufacturing process is done. API Bx Flange provided by CCSC are field proven flanges and are has a raised face. API Blind Flange Dimensions includes various factors such as nominal size, outer diameter, thickness and many other things. These are in inches and are used to block off a section of a pipe. This is usually a solid disk and has mounting holes. The only difference in general and blind flange is, this blind flange doesn’t have openings for the liquids to pass. API 6A integral flange works on the temperature of -75 degree to 250 degree F. The dimensions of this are same like ANSI B16.5 flanges. API 6bx Weld Neck Flange has a minimum wall thickness of 200 inches. These are used in the areas where high pressure is needed.

Table of Content

What Does API Flange means ?
15000PSI(103.5MPA) API 6A Weld Neck Flange and type 6BX BLRF Flanges Dimension Chart
Specification chart of API 6bx flanges
API 6a Blind Flange Pressure Ratings
View Material of API Flanges
API 650 Flange Applications

What Does API Flange means ?

API flanges are the one which are designed and manufactured for industries such as oil and gas explosives, chemical industries and other such sectors. There are various API flange manufacturer companies in India. But our regal sales corporation is the reputed one as we are ISO certified and all the high level machineries are used in order to manufacture this product. Even the team is expert and delivers quality services. Hence, our name is maintained in the market.

15000PSI(103.5MPA) API 6A Weld Neck Flange and type 6BX BLRF Flanges Dimension Chart

15000PSI(103.5MPA) API 6A Weld Neck and type 6BX BLRF Flange Dimension Chart

Size	E1	B	OD	G	C	Q	J4	K	J3	T	BC	J1	H	R	J2	N	Ring Number
1 13/16"	-	46.8	210	77.77	3	5.56	-	106	47.6	45.3	160.3	97.6	26	10	71.4	8	151
2 1/16"	-	53.2	220	86.23	3	5.95	-	114	54	50.8	174.6	111.1	26	10	82.5	8	152
2 9/16"	-	65.9	255	102.77	3	6.75	-	133	57.1	57.2	200	128.6	29	10	100	8	153
3 1/16"	-	78.6	290	119	3	7.54	-	154	63.5	64.3	230.2	154	32	10	122.2	8	154
4 1/16"	-	104	360	150.62	3	8.33	-	194	73	78.6	290.5	195.3	39	10	158.7	8	155
5 1/8"	9.5	131	420	176.66	3	9.53	6.4	225	81.8	98.5	342.9	244.5	42	16	200	12	169
7 1/16"	11.1	180.2	505	241.83	6	11.11	7.9	305	92.1	119.1	428.6	325.4	42	16	276.2	16	156
9 "	12.7	229.4	650	299.06	6	12.7	14.2	381	123.8	146.1	552.4	431.8	51	16	349.2	16	157
11"	14.3	280.2	815	357.23	6	14.29	12.7	454	235.7	187.4	711.2	584.2	54	16	427	20	158
13 5/8"	15.9	346.9	885	432.64	6	15.88	17.5	541	114.3	204.8	771.5	595.3	61	25	528.6	20	159
18 3/4"	18.3	477	1160	577.9	6	18.26	35.1	722	155.6	255.6	1016	812.8	80	25	730.2	20	164

1) 'C' should be the maximum value 2) Ring No. BX, 3) Tolerance and Ring Gasket as per API 6A-20TH

API 6A Type 6B 2000 PSI Weld Neck and BLRF Flange

2000PSI (13.8MPA) type 6B Blind and WNRF API 6A Flange Standard Dimensions

Size	B	OD	C	K	P	E	T	Q	X	BC	N	H	LN	HL	JL	R/RX
2 1/16"	53.2	165	3	108	82.55	7.9	33.4	25.4	84	127	8	20	81	60.3	53.3	23
2 9/16"	65.9	190	3	127	101.6	7.9	36.6	28.6	100	149.2	8	23	88	73	63.5	26
3 1/8"	81.8	210	3	146	123.83	7.9	39.7	31.8	117	168.3	8	23	91	88.9	78.7	31
4 1/16"	108.7	275	3	175	149.23	7.9	46.1	38.1	152	215.9	8	26	110	114.3	103.1	37
5 1/8"	131	330	3	210	180.98	7.9	52.4	44.5	189	266.7	8	29	122	141.3	122.9	41
7 1/16"	181.8	355	6	241	211.15	7.9	55.6	47.6	222	292.1	12	29	126	168.3	147.1	45
9"	229.4	420	6	302	269.88	7.9	63.5	55.6	273	349.3	12	32	141	219.1	199.1	49
11"	280.2	510	6	356	323.85	7.9	71.5	63.5	343	431.8	16	35	160	273	248.4	53
13 5/8"	346.9	560	6	413	381	7.9	74.7	66.7	400	489	20	35	-	-	-	57
16 3/4"	426.2	685	6	508	469.9	7.9	84.2	76.2	495	603.2	20	42	-	-	-	65
21 1/4"	540.5	815	6	635	584.2	9.7	98.5	88.9	610	723.9	24	45	-	-	-	73

API 6A Type 6BX 2000PSI BLRF Flange

2000PSI (13.8MPA) type 6BX BLRF API 6A Flange Dimensional Chart

Size	OD	C	E1	G	K	T	J1	J4	R	BC	N	H	BX
26 3/4"	1040	6	21.4	768.33	805	126.3	835.8	9.7	16	952.5	20	48	167
30"	1120	6	23	862.3	908	134.2	931.9	17.5	16	1039.8	32	45	303

API 6A Type 6B 3000PSI Blind / Welding Neck Flange

3000 PSI (20.7MPA) Type 6B Weld Neck and API 6A Blind Flange Dimensions

Size	B	OD	C	K	P	E	T	Q	X	BC	N	H	LN	HL	JL	R/RX
2 1/16"	53.2	215	3	124	95.25	7.9	46.1	38.1	104.8	165.1	8	26	109.6	60.3	50	24
2 9/16"	65.9	245	3	137	107.95	7.9	49.3	41.3	123.8	190.5	8	29	112.7	73	59.7	27
3 1/8"	81.8	240	3	156	123.83	7.9	46.1	38.1	127	190.5	8	26	109.5	88.9	74.4	31
4 1/16"	108.7	290	3	181	149.23	7.9	52.4	44.4	158.8	235	8	32	122.2	114.3	98	37
5 1/8"	131	350	3	216	180.98	7.9	58.8	50.8	190.5	279.4	8	35	134.9	141.3	122.9	41
7 1/16"	181.8	380	6	241	211.15	7.9	63.5	55.6	235	317.5	12	32	147.6	168.3	147.1	45
9"	229.4	470	6	308	269.88	7.9	71.5	63.5	298.5	393.7	12	39	169.9	219.1	189.7	49
11"	280.2	545	6	362	323.85	7.9	77.8	69.9	368.3	469.9	16	39	192.1	273	237.2	53
13 5/8"	346.9	610	6	419	381	7.9	87.4	79.4	419.1	533.4	20	39	-	-	-	57
16 3/4"	426.2	705	6	524	469.9	11.2	100.1	88.9	508	616	20	45	-	-	-	66
20 3/4"	527.8	855	6	648	584.2	12.7	120.7	108	622.3	749.3	20	54	-	-	-	74

API 6A Type 6B 5000PSI BLRF / WNRF Neck Flange

Dimensional Table of 5000 PSI (34.5MPA) type 6B BLRF and API 6A WNRF Flange

Size	B	OD	C	K	P	E	T	Q	X	BC	N	H	LN	HL	JL	R/RX
2 1/16"	53.2	215	3	124	95.25	7.9	46.1	38.1	104.8	165.1	8	26	109.5	60.3	43.7	24
2 9/16"	65.9	245	3	137	107.95	7.9	49.3	41.3	123.8	190.5	8	29	112.7	73	54.9	27
3 1/8"	81.8	265	3	168	136.53	7.9	55.6	47.7	133.3	203.2	8	32	125.4	88.9	67.5	35
4 1/16"	108.7	310	3	194	161.93	7.9	62	54	161.9	241.3	8	35	131.8	114.3	88.1	39
5 1/8"	131	375	3	229	193.68	7.9	81	73.1	196.8	292.1	8	42	163.5	141.3	110.3	44
7 1/16"	181.8	395	6	248	211.15	9.7	92.1	82.6	228.6	317.5	12	39	181	168.3	132.6	46
9"	229.4	485	6	318	269.88	11.2	103.2	92.1	292.1	393.7	12	45	223.8	219.1	173.8	50
11"	280.2	585	6	371	323.85	11.2	119.1	108	368.3	482.6	12	51	265.1	273.1	216.7	54

API 6A Type 6BX 10000PSI Blind / Welding Neck Flange

10000 PSI (69.0MPA) type 6BX Weld Neck and API 6A Blind Flange Dimensions

Size	B	OD	C	E1	Q	G	K	T	J1	J2	J3	J4	R	BC	N	H	BX
1 13/16"	46.8	185	3	-	5.56	77.77	105	42.1	88.9	65.1	48.5	-	10	146.1	8	23	151
2 1/16"	53.2	200	3	-	5.95	86.23	111	44.1	100	74.7	51.6	-	10	158.8	8	23	152
2 9/16"	65.9	230	3	-	6.75	102.77	132	51.2	120.7	92.1	57.2	-	10	184.2	8	26	153
3 1/16"	78.6	270	3	-	7.54	119	152	58.4	142.1	110.2	63.5	-	10	215.9	8	29	154
4 1/16"	104	315	3	-	8.33	150.62	185	70.3	182.6	146.1	73.1	-	10	258.8	8	32	155
5 1/8"	131	360	3	9.5	9.53	176.66	221	79.4	223.8	182.6	81	6.4	10	300	12	32	169
7 1/16"	180.2	480	6	11.1	11.11	241.83	302	103.2	301.6	254	95.3	9.7	16	403.2	12	42	156
9 "	229.4	550	6	12.7	12.7	299.06	359	123.9	374.7	327.1	93.7	9.7	16	476.3	16	42	157
11"	280.2	655	6	14.3	14.29	357.23	429	141.3	450.9	400.1	103.2	14.2	16	565.2	16	48	158
13 5/8"	346.9	770	6	15.9	15.88	432.64	518	168.3	552.5	495.3	114.3	17.5	16	673.1	20	51	159
16 3/4"	426.2	870	6	8.3	8.33	478.33	576	168.3	655.6	601.7	76.2	30.2	19	776.3	24	51	162
18 3/4"	477	1040	6	18.3	18.26	577.9	697	223.1	752.5	674.7	155.6	25.4	16	925.5	24	61	164
21 1/4"	540.5	1145	6	19.1	19.05	647.88	781	241.3	847.7	762	165.1	31.8	21	1022.4	24	67	166

Specification chart of API 6bx flanges

API Flanges Size Chart	1/2″ (15 NB) to 48″ (1200NB) DN10~DN5000
API Flanges Standards	ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092
UNI	6Bar 10Bar 16Bar 25Bar 40Bar
EN	6Bar 10Bar 16Bar 25Bar 40Bar
API Flanges Pressure Rating ANSI	Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS
API Flanges Pressure Calculation in DIN	6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64
JIS	5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K
Test Certificates	EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc
Coating	Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized
Most common types of API Flanges	forged / Threaded / Screwed / Plate
Production technique	forged, Heat treated and machined
Connect Type/ Flange Face Type	Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove, , Groove
Special design	As per your drawing AS, ANSI, BS, DIN and JIS 15 NB (1/2″) to 200 NB (8″) Equal and Reducing Configurations
Origin	Indian / West Europe / Japan / USA / Korean
Manufacturer of	ANSI DIN, GOST, JIS, UNI, BS, AS2129, AWWA, EN, SABS, NFE etc. API Flanges: -BS Flange, EN Flange, API 6A Flange, ANSI Flange, ASME Flange, DIN Flange, EN1092-1 Flange, UNI Flange, JIS/ KS Flange, BS4504 Flange, GB Flange, AWWA C207 Flange, GOST Flange, PSI Flange B.S: BS4504 , BS3293, BS1560, BS10 AS 2129: Table D; Table E; Table H ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings ANSI : ANSI B16.5, ANSI B16.47(API605), MSS SP44, ANSI B16.36, ANSI B16.48 ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48 American standard (ANSI) German (DIN) British standard (BS) DIN: DIN 2527, DIN 2566, DIN 2573, DIN 2576, DIN 2641, DIN 2642, DIN 2655, DIN 2656, DIN 2627, DIN 2628, DIN 2629, DIN 2631, DIN 2632, DIN 2633, DIN 2634, DIN 2635, DIN 2636, DIN 2637, DIN 2638 API Flanges The other standard: AWWA C207; EN1092-1, GOST12820, JIS B2220; KS B1503, SABS1123; NFE29203; UNI2276
Test	Direct-reading Spectrograph, Hydrostatic testing machine, X-ray detector, UI trasonic flaw detector, Magnetic particle detector
Equipment	Press machine, Bending machine, Pushing Machine, electric bevelling machine, Sand-blasting machine etc

API 6a Blind Flange Pressure Ratings

Flange Size	Working Pressure (PSI)	Outside Diameter	Number of Bolt Holes	Diameter of Bolt Holes	Length of Bolts	API Ring Gasket
1-13/16"	10,000	7-3/8"	8	3/4"	5-1/4"	BX-151
1-13/16"	15,000	8-3/16"	8	7/8"	6"	BX-151
1-13/16"	20,000	10-1/8"	8	1"	7-3/4"	BX-151
2-1/16"	2,000	6-1/2"	8	5/8"	5/8"	R-23
2-1/16"	3,000/5,000	8-1/2"	8	7/8"	7/8"	R-24
2-1/16"	10,000	7-7/8"	8	3/4"	3/4"	BX-152
2-1/16"	15,000	8-3/4"	8	7/8"	7/8"	BX-152
2-1/16"	20,000	11-5/16"	8	1-1/8"	1-1/8"	BX-152
2-9/16"	2,000	7-1/2"	8	3/4"	5-1/4"	R-26
2-9/16"	3,000/5,000	9-5/8"	8	1"	7"	R-27
2-9/16"	10,000	9-1/8"	8	7/8"	6-1/4"	BX-153
2-9/16"	15,000	10"	8	1"	7"	BX-153
2-9/16"	20,000	12-13/16"	8	1-1/4"	9-1/2"	BX-153
3-1/8"	2,000	8-1/4"	8	3/4"	5-1/2"	R-31
3-1/8"	3,000	9-1/2"	8	7/8"	6-1/4"	R-31
3-1/8"	5,000	10-1/2"	8	1-1/8"	7-3/4"	R-35
3-1/16"	10,000	10-5/8"	8	1"	7-1/4"	BX-154
3-1/16"	15,000	11-5/16"	8	1-1/8"	8"	BX-154
3-1/16"	20,000	14-1/16"	8	1-3/8"	10-3/4"	BX-154
4-1/16"	2,000	10-3/4"	8	7/8"	6-1/4"	R-37
4-1/16"	3,000	11-1/2"	8	1-1/8"	7-1/2"	R-37
4-1/16"	5,000	12-1/4"	8	1-1/8"	8-3/8"	BX-155
4-1/16"	20,000	17-9/16"	8	1-3/4"	12-3/4"	BX-155
5-1/8"	5,000	14-3/4"	8	1-1/2"	10-3/4"	R-44
7-1/16"	2,000	14"	12	1"	7-1/2"	R-45
7-1/16"	3,000	15"	12	1-1/8"	8-1/2"	R-45
7-1/16"	5,000	15-1/2"	12	1-3/8"	11-1/4"	R-46
7-1/16"	10,000	18-7/8"	12	1-1/2"	11-3/4"	BX-156
7-1/16"	15,000	19-7/8"	16	1-1/2"	13"	BX-156
7-1/16"	20,000	24-13/16"	16	2"	17-3/4"	BX-156
9"	2,000	16-1/2"	12	1-1/8"	8-1/2"	R-49
9"	3,000	18-1/2"	12	1-3/8"	9-1/2"	R-49
9"	5,000"	19"	12	1-5/8"	12-1/2"	R-50
9"	10,000	21-3/4"	16	1-1/2"	13-1/4"	BX-157
9"	15,000	25-1/2"	16	1-7/8"	16"	BX-157
11"	2,000	20"	16	1-1/4"	9-1/4"	R-53
11"	3,000	21-1/2"	16	1-3/8"	10"	R-53
11"	5,000	23"	12	1-7/8"	14-1/4"	R-54
11"	10,000	25-3/4"	16	1-3/4"	15-3/8"	BX-158
11"	15,000	32"	20	2"	19-1/2"	BX-158
13-5/8"	2,000	22"	20	1-1/4"	9-1/2"	R-57
13-5/8"	3,000	24"	20	1-3/8"	10-3/4"	R-57
13-5/8"	5,000	26-1/2"	16	1-5/8"	12-3/4"	BX-160
13-5/8"	10,000	30-1/4"	20	1-7/8"	17-3/4"	BX-159
13-5/8"	15,000	34-7/8"	20	2-1/4"	21"	BX-159
16-3/4"	2,000	27"	20	1-1/2"	10-3/4"	R-65
16-3/4"	3,000	27-3/4"	20	1-5/8"	12-1/4"	R-66
16-3/4"	5,000	30-3/8"	16	1-78"	14-3/4"	BX-162
16-3/4"	10,000	34-5/16"	24	1-7/8"	17-3/4"	BX-162
18-3/4"	5,000	35-5/8"	20	2"	18"	BX-163
16-3/4"	10,000	40-15/16"	24	2-1/4"	23"	BX-164
20-3/4"	3,000	33-3/4"	20	2"	15-1/4"	R-74
21-1/4"	2,000	32"	24	1-5/8"	12-1/2"	R-73
21-1/4"	5,000	39"	24	2"	19"	BX-165
21-1/4"	10,000	45"	24	2-1/2"	24-3/4"	BX-166
26-3/4"	2,000	41"	20	1-3/4"	14-1/4"	BX-167
21-1/4"	3,000	43-3/8"	24	2"	17-1/2"	BX-168

View Material of API Flanges

Carbon Steel	ASTM A105 ASME SA105 DIN 1.0402 DIN 1.0460 DIN 1.0619 ASTM A105N ASME SA105N ASTM A350 LF2 ASME SA350 High Yield CS ASTM A694
Stainless Steel	ASTM A182 F304 ASTM A182 F304L ASTM A182 F316 ASTM A182 F316L ASTM A182 F317 ASTM A182 F317L ASTM A182 F321 ASTM A182 F321H ASTM A182 F347 ASTM A182 F347H
Alloy Steel	ASTM A182 F5 ASTM A182 F9 ASTM A182 F11 ASTM A182 F22 ASTM A182 F91
Inconel	Inconel 600 Inconel 601 Inconel 625 Inconel 718 Inconel x750
Copper	T1, T2, C10100, C10200, C10300, C10400, C10500, C10700, C10800, C10910,C10920, TP1, TP2, C10930, C11000, C11300, C11400, C11500, C11600, C12000,C12200, C12300, TU1, TU2, C12500, C14200, C14420, C14500, C14510, C14520, C14530, C17200, C19200, C21000, C23000, C26000, C27000, C27400, C28000, C33000, C33200, C37000, C44300, C44400, C44500, C60800, C63020, C68700, C70400, C70600, C70620, C71000, C71500, C71520, C71640, etc
Copper Nickel	Copper Nickel 90/10 (C70600 ), Cupro Nickel 70/30 (C71500), UNS C71640
Brass	3602 / 2604 / H59 / H62 / etc.
Hastelloy	Hastelloy C276 (UNS N10276), C22 (UNS N06022), C4, C2000, B2, B3, X
Monel	Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500)
Alloy 20	Carpenter® 20 Alloy, Alloy 20Cb-3
Aluminium	5052 /6061/ 6063 / 2017 / 7075 / etc.
Nickel	Nickel 200, Nickel 201
Duplex	S31803 / S32205 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61
Super Duplex	S32750 / S32760 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61
Incoloy	Incoloy 800, Incoloy 800H, Incoloy 800HT (UNS N08800), Incoloy 825 (UNS N08825)
254 Smo	SMO 254/6Mo, UNS S31254, DIN 1.4547
Nimonic	Nimonic 75, Nimonic 80A, Nimonic 90
Other material	Tin bronze, Alumunum bronze, Lead bronze
Titanium	ASTM B381 Titanium Gr. 1 ASTM B381 Titanium Gr. 2 ASTM B381 Titanium Gr. 4 ASTM B381 Titanium Gr. 5 ASTM B381 Titanium Gr. 7

API 650 Flange Applications

▶ API Flanges uses in Oil and Gas Pipeline
▶ API 605 Threaded Flanges uses in Chemical Industry
▶ API 6A Plate Flanges uses in Plumbing
▶ API Loose Flanges uses in Oil & Gas Industry
▶ API 650 Blind Flanges uses in Water Supply Systems
▶ API Slip On Flanges uses in Paper & Pulp Industry

API 6a 6b 6bx flanges manufacturer in India