JK Engineering Works

Forged Steel Flanges

Forged Steel Flanges Manufacturer

JK Engineering Works is recognized as one of the leading Industrial Forged Steel Flanges Wholesaler in Mumbai, India and a leading Exporter of these products. These ASME B16.5 Stainless Forged Steel Flanges are made from high-quality Materials and Designed in Conformance with Industry Standards. The longevity, excellent performance, and resistance to corrosion of stainless steel Forged Steel Flanges are well known. These forged flanges are compliant with ANSI B16.47 and can be used in a number of different industries, including pipeline engineering, heavy engineering, and the automotive sector. Our flanges tange, which is available in Standard Specifications, can also be modified to meet the needs of our customers.

Our Stainless Forged Steel Flanges is fabricated with the wall thickness having the same dimensions of the matching pipes. Our Stainless Forged Steel Flanges range is catering to the requirements of various industries and is ideal for use at high pressure, and varied cold or hot temperatures. We Offer latest technical advancements and carry well maintained inventory ready for fastest delivery to any location.

We at JK Engineering Works would like to take the opportunity to introduce as a leading Industrial Carbon Forged Steel Flanges Exporter in India. Carbon Forged Steel Flanges are stocked or available in the following range of materials and sizes for the oil, gas, petrochemical and allied industries. Pipes with Bleed Ring can be assembled and disassembled easily.

Forged Steel Flanges Specification

ASME B16.5 Forged Steel Flanges Size Chart	1/2″ (15 NB) to 48″ (1200NB) DN10~DN5000
Forged Steel 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
Forged Steel Flanges Pressure Rating ANSI	Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS Forged Steel Flanges
Forged Steel Flanges Pressure Calculation in DIN	6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64 Forged Steel Flanges
JIS	5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K Forged Steel Flanges
UNI	6Bar 10Bar 16Bar 25Bar 40Bar Forged Steel Flanges
EN	6Bar 10Bar 16Bar 25Bar 40Bar Forged Steel Flanges
Coating	Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized Forged Steel Flanges
Most common types of Forged Steel Flanges	Forged / Threaded / Screwed / Plate
Test Certificates	EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc
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
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
Origin	Indian / West Europe / Japan / USA / Korean
Manufacturer of	ANSI DIN, GOST, JIS, UNI, BS, AS2129, AWWA, EN, SABS, NFE etc. Forged 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 Forged Flanges The other standard: AWWA C207; EN1092-1, GOST12820, JIS B2220; KS B1503, SABS1123; NFE29203; UNI2276
Forged Steel Flanges Uses & application	Bitumen upgraders. Heavy oil refineries. Nuclear power (mostly seamless). Petrochemicals and acids.

Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2, Test Certificates certifying NACE MR0103, NACE MR0175

Forged Steel Flanges Material

Prestige quality Forged Steel Flanges Manufacturer in India offer these Carbon Forged Steel Flanges in DIN, EN, BS, ISO, JIS or ANSI standard.

Carbon Steel Forged Flanges	ASTM/ASME A/SA105 A/SA105N & A/SA216-WCB, DIN 1.0402, DIN 1.0460, DIN 1.0619, Die Steel, ASTM A105 / ASME SA105, A105N, ASTM A350 LF2 / ASME SA350, High Yield CS ASTM A694 / A694 (F52 F56 F60 F65 F70 F80)
Stainless Steel Forged Flanges	ASTM/ASME A/SA182 F304, F304L, F316, F316L, ASTM/ASME A/SA351 CF8, CF3, CF8M, CF3M, DIN 1.4301, DIN 1.4306, DIN 1.4401, DIN 1.4404, DIN 1.4308, DIN 1.4408, DIN 1.4306, DIN 1.4409
Alloy Steel Forged Flanges	ASTM A182 / ASME SA182 F5, F9, F11, F12, F22, F91
Titanium Forged Flanges	ASTM B381 / ASME SB381, Titanium Gr. 1, Titanium Gr. 2, Titanium Gr. 4, Titanium Gr. 5, Titanium Gr. 7 ASTM R50250/GR.1 \| R50400/GR.2 \| R50550/GR.3 \| R50700/GR.4 \| GR.6 \|R52400/GR.7 \| R53400/GR.12 \| R56320/GR.9 \|R56400/GR.5
Copper Forged Flanges	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 Forged Flanges	ASTM / ASME SB 61 / 62 / 151 / 152, Copper Nickel 90/10 (C70600 ), Cupro Nickel 70/30 (C71500), UNS C71640
Brass Forged Flanges	3602 / 2604 / H59 / H62 / etc.
Inconel Forged Flanges	ASTM B564 / ASME SB564, Inconel 600, 601, 625, 718, 783, 690, x750 Forged Flanges
Hastelloy Forged Flanges	ASTM B564 / ASME SB564, Hastelloy C276 (UNS N10276), C22 (UNS N06022), C4, C2000, B2, B3, X Flanges
Monel Forged Flanges	ASTM B564 / ASME SB564, Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500)
Alloy 20 Forged Flanges	ASTM B462 / ASME SB462, Carpenter® 20 Alloy, Alloy 20Cb-3
Aluminium Forged Flanges	5052 /6061/ 6063 / 2017 / 7075 / etc.
Nickel Forged Flanges	ASTM B564 / ASME SB564, Nickel 200, Nickel 201, Nickel 205, Nickel 205LC
Duplex Forged Flanges	S31803 / S32205 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61
Super Duplex Forged Flanges	S32750 / S32760 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61
Incoloy Forged Flanges	ASTM B564 / ASME SB564, Incoloy 800, 800H, 800HT (UNS N08800), 825 (UNS N08825), 925 Flanges
254 Smo Forged Flanges	ASTM A182 / ASME SA182, SMO 254/6Mo, UNS S31254, DIN 1.4547
Nimonic Forged Flanges	Nimonic 75, Nimonic 80A, Nimonic 90
Other Forged Flanges material	Tin bronze, Alumunum bronze, Lead bronze

Forged Steel Flanges Dimensions

Class 150 Forged Steel Flanges Dimensions

Nom. Pipe Size	O	T	TJ	R	X	#/Dia of Holesa	Bolt Circle Dia	B	B2b	B3	H	L	L2	L3c	R	D	Thr
½	3.50	0.38	0.44	1.38	1.19	4-0.62	2.38	0.88	0.62	0.90	0.84	0.56	1.81	0.62	0.12	0.38	0.62
¾	3.88	0.44	0.50	1.69	1.50	4-0.62	2.75	1.09	0.82	1.11	1.05	0.56	2.00	0.62	0.12	0.44	0.62
1	4.25	0.50	0.56	2.00	1.94	4-0.62	3.12	1.36	1.05	1.38	1.32	0.62	2.12	0.69	0.12	0.50	0.69
1¼	4.62	0.56	0.62	2.50	2.31	4-0.62	3.50	1.70	1.38	1.72	1.66	0.75	2.19	0.81	0.19	0.56	0.81
1½	5.00	0.62	0.69	2.88	2.56	4-0.62	3.88	1.95	1.61	1.97	1.90	0.81	2.38	0.88	0.25	0.62	0.88
2	6.00	0.69	0.75	3.62	3.06	4-0.75	4.75	2.44	2.07	2.46	2.38	0.94	2.44	1.00	0.31	0.69	1.00
2½	7.00	0.81	0.88	4.12	3.56	4-0.75	5.50	2.94	2.47	2.97	2.88	1.06	2.69	1.12	0.31	0.75	1.12
3	7.50	0.88	0.94	5.00	4.25	4-0.75	6.00	3.57	3.07	3.60	3.50	1.12	2.69	1.19	0.38	0.81	1.19
3½	8.50	0.88	0.94	5.50	4.81	8-0.75	7.00	4.07	3.55	4.10	4.00	1.19	2.75	1.25	0.38	0.88	1.25
4	9.00	0.88	0.94	6.19	5.31	8-0.75	7.50	4.57	4.03	4.60	4.50	1.25	2.94	1.31	0.44	0.94	1.31
5	10.00	0.88	0.94	7.31	6.44	8-0.88	8.50	5.66	5.05	5.69	5.56	1.38	3.44	1.44	0.44	0.94	1.44
6	11.00	0.94	1.00	8.50	7.56	8-0.88	9.50	6.72	6.07	6.75	6.63	1.50	3.44	1.56	0.50	1.06	1.56
8	13.50	1.06	1.12	10.62	9.69	8-0.88	11.75	8.72	7.98	8.75	8.63	1.69	3.94	1.75	0.50	1.25	1.75
10	16.00	1.12	1.19	12.75	12.00	12-1.00	14.25	10.88	10.02	10.92	10.75	1.88	3.94	1.94	0.50	1.31	1.94
12	19.00	1.19	1.25	15.00	14.38	12-1.00	17.00	12.88	12.00	12.92	12.75	2.12	4.44	2.19	0.50	1.56	2.19
14	21.00	1.31	1.38	16.25	15.75	12-1.12	18.75	14.14	13.25	14.18	14.00	2.19	4.94	3.12	0.50	1.63	2.25
16	23.50	1.38	1.44	18.50	18.00	16-1.12	21.25	16.16	15.25	16.19	16.00	2.44	4.94	3.44	0.50	1.75	2.50
18	25.00	1.50	1.56	21.00	19.88	16-1.25	22.75	18.18	17.25	18.20	18.00	2.62	5.44	3.81	0.50	1.94	2.69
20	27.50	1.62	1.69	23.00	22.00	20-1.25	25.00	20.20	19.25	20.25	20.00	2.81	5.62	4.06	0.50	2.13	2.88
22	29.50	1.75	1.81	25.25	24.25	20-1.38	27.25	22.22	21.25	22.25	22.00	3.07	5.82	4.25	0.50	2.38	3.13
24	32.00	1.81	1.88	27.25	26.12	20-1.38	29.50	24.25	23.25	24.25	24.00	3.19	5.94	4.38	0.50	2.50	3.25

Class 300 Forged Steel Flanges Dimension

Nom. Pipe Size	O	T	TJ	R	X	#/Dia of Holesa	Bolt Circle Dia	B	B2b	B3	H	L	L2	L3c	R	C	D	Thr
½	3.75	0.50	0.56	1.38	1.50	4-0.63	2.62	0.88	0.62	0.90	0.84	0.81	2.00	0.88	0.12	0.93	0.38	0.62
¾	4.62	0.56	0.62	1.69	1.88	4-0.75	3.25	1.09	0.82	1.11	1.05	0.94	2.19	1.00	0.12	1.14	0.44	0.62
1	4.88	0.62	0.69	2.00	2.12	4-0.75	3.50	1.36	1.05	1.38	1.32	1.00	2.38	1.06	0.12	1.41	0.50	0.69
1¼	5.25	0.69	0.75	2.50	2.50	4-0.75	3.88	1.70	1.38	1.72	1.66	1.00	2.50	1.06	0.19	1.75	0.56	0.81
1½	6.12	0.75	0.81	2.88	2.75	4-0.88	4.50	1.95	1.61	1.97	1.90	1.13	2.63	1.19	0.25	1.98	0.62	0.88
2	6.50	0.81	0.88	3.62	3.31	8-0.75	5.00	2.44	2.07	2.46	2.38	1.25	2.69	1.31	0.31	2.50	0.69	1.12
2½	7.50	0.94	1.00	4.12	3.94	8-0.88	5.88	2.94	2.47	2.97	2.88	1.44	2.94	1.50	0.31	3.00	0.75	1.25
3	8.25	1.06	1.12	5.00	4.62	8-0.88	6.62	3.57	3.07	3.60	3.50	1.63	3.06	1.69	0.38	3.63	0.81	1.25
3½	9.00	1.12	1.19	5.50	5.25	8-0.88	7.25	4.07	3.55	4.10	4.00	1.69	3.13	1.75	0.38	4.13		1.44
4	10.00	1.19	1.25	6.19	5.75	8-0.88	7.88	4.57	4.03	4.60	4.50	1.82	3.32	1.88	0.44	4.63		1.44
5	11.00	1.31	1.38	7.31	7.00	8-0.88	9.25	5.66	5.05	5.69	5.56	1.94	3.82	2.00	0.44	5.69		1.69
6	12.50	1.38	1.44	8.50	8.12	12-0.88	10.62	6.72	6.07	6.75	6.63	2.00	3.82	2.06	0.50	6.75		1.81
8	15.00	1.56	1.62	10.62	10.25	12-1.00	13.00	8.72	7.98	8.75	8.63	2.38	4.32	2.44	0.50	8.75		2.00
10	17.50	1.81	1.88	12.75	12.62	16-1.12	15.25	10.88	10.02	10.92	10.75	2.56	4.56	3.75	0.50	10.88		2.19
12	20.50	1.94	2.00	15.00	14.75	16-1.25	17.75	12.88	12.00	12.92	12.75	2.82	5.06	4.00	0.50	12.94		2.38
14	23.00	2.06	2.12	16.25	16.75	20-1.25	20.25	14.14	13.25	14.18	14.00	2.94	5.56	4.38	0.50	14.19		2.50
16	25.50	2.19	2.25	18.50	19.00	20-1.38	22.50	16.16	15.25	16.19	16.00	3.19	5.69	4.75	0.50	16.19		2.69
18	28.00	2.31	2.38	21.00	21.00	24-1.38	24.75	18.18	17.25	18.20	18.00	3.44	6.19	5.12	0.50	18.19		2.75
20	30.50	2.44	2.50	23.00	23.12	24-1.38	27.00	20.20	19.25	20.25	20.00	3.69	6.32	5.50	0.50	20.19		2.88
22	33.00	2.57	2.63	25.25	25.25	24-1.63	29.25	22.22	21.25	22.25	22.00	3.93	6.43	5.75	0.50	22.19		3.13
24	36.00	2.69	2.75	27.25	27.62	24-1.63	32.00	24.25	23.25	24.25	24.00	4.13	6.56	6.00	0.50	24.19		3.25

Class 400 Forged Steel Flanges Dimension

Nom. Pipe Size	O	T	R	X	#/Dia of Holesa	Bolt Circle Dia	B	B3	H	L	L2	L3c	r	C	D	Thr
½	3.75	0.56	1.38	1.5	4-0.63	2.62	0.88	0.9	0.84	0.88	2.06	0.88	0.12	0.93	0.38	0.62
¾	4.62	0.62	1.69	1.88	4-0.75	3.25	1.09	1.11	1.05	1	2.25	1	0.12	1.14	0.44	0.62
1	4.88	0.69	2	2.12	4-.075	3.5	1.36	1.38	1.32	1.06	2.44	1.06	0.12	1.41	0.5	0.69
1¼	5.25	0.81	2.5	2.5	4-0.75	3.88	1.7	1.72	1.66	1.12	2.62	1.12	0.19	1.75	0.56	0.81
1½	6.12	0.88	2.88	2.75	4-0.88	4.5	1.95	1.97	1.9	1.25	2.75	1.25	0.25	1.99	0.62	0.88
2	6.5	1	3.62	3.31	8-0.75	5	2.44	2.46	2.38	1.44	2.88	1.44	0.31	2.5	0.69	1.12
2½	7.5	1.12	4.12	3.94	8-0.88	5.88	2.94	2.97	2.88	1.62	3.12	1.62	0.31	3	0.75	1.25
3	8.25	1.25	5	4.62	8-0.88	6.62	3.57	3.6	3.5	1.81	3.25	1.81	0.38	3.63	0.81	1.38
3½	9	1.38	5.5	5.25	8-1.00	7.25	4.07	4.1	4	1.94	3.38	1.94	0.38	4.13		1.56
4	10	1.38	6.19	5.75	8-1.00	7.88	4.57	4.6	4.5	2	3.5	2	0.44	4.63		1.44
5	11	1.5	7.31	7	8-1.00	9.25	5.66	5.69	5.56	2.12	4	2.12	0.44	5.69		1.69
6	12.5	1.62	8.5	8.12	12-1.00	10.62	6.72	6.75	6.63	2.25	4.06	2.25	0.5	6.75		1.81
8	15	1.88	10.62	10.25	12-1.12	13	8.72	8.75	8.63	2.69	4.62	2.69	0.5	8.75		2
10	17.5	2.12	12.75	12.62	16-1.25	15.25	10.88	10.92	10.75	2.88	4.88	4	0.5	10.88		2.19
12	20.5	2.25	15	14.75	16-1.38	17.75	12.88	12.92	12.75	3.12	5.38	4.25	0.5	12.94		2.38
14	23	2.38	16.25	16.75	20-1.38	20.25	14.14	14.18	14	3.31	5.88	4.62	0.5	14.19		2.5
16	25.5	2.5	18.5	19	20-1.50	22.5	16.16	16.19	16	3.69	6	5	0.5	16.19		2.69
18	28	2.62	21	21	24-1.50	24.75	18.18	18.2	18	3.88	6.5	5.38	0.5	18.19		2.75
20	30.5	2.75	23	23.12	24-1.62	27	20.2	20.25	20	4	6.62	5.75	0.5	20.19		2.88
22	33	2.88	25.25	25.25	24-1.75	29.25	22.22	22.25	22	4.25	6.75	6	0.5			—
24	36	3	27.25	27.62	24-1.88	32	24.25	24.25	24	4.5	6.88	6.25	0.5	24.19		3.25

Class 600 Forged Steel Flanges Dimension

Nom. Pipe Size	O	T	R	X	#/Dia of Holesa	Bolt Circle Dia	B	B3	H	L	L2	L3c	r	C	D	Thr
½	3.75	0.56	1.38	1.5	4-0.63	2.62	0.88	0.9	0.84	0.88	2.06	0.88	0.12	0.93	0.38	0.62
¾	4.62	0.62	1.69	1.88	4-0.75	3.25	1.09	1.11	1.05	1	2.25	1	0.12	1.14	0.44	0.62
1	4.88	0.69	2	2.12	4-0.75	3.5	1.36	1.38	1.32	1.06	2.44	1.06	0.12	1.41	0.5	0.69
1¼	5.25	0.81	2.5	2.5	4-0.75	3.88	1.7	1.72	1.66	1.12	2.62	1.12	0.19	1.75	0.56	0.81
1½	6.12	0.88	2.88	2.75	4-0.88	4.5	1.95	1.97	1.9	1.25	2.75	1.25	0.25	1.99	0.62	0.88
2	6.5	1	3.62	3.31	8-0.75	5	2.44	2.46	2.38	1.44	2.88	1.44	0.31	2.5	0.69	1.12
2½	7.5	1.12	4.12	3.94	8-0.88	5.88	2.94	2.97	2.88	1.62	3.12	1.62	0.31	3	0.75	1.25
3	8.25	1.25	5	4.62	8-0.88	6.62	3.57	3.6	3.5	1.81	3.25	1.81	0.38	3.63	0.81	1.38
3½	9	1.38	5.5	5.25	8-1.00	7.25	4.07	4.1	4	1.94	3.38	1.94	0.38	4.13		1.56
4	10.75	1.5	6.19	6	8-1.00	8.5	4.57	4.6	4.5	2.12	4	2.12	0.44	4.63		1.62
5	13	1.75	7.31	7.44	8-1.12	10.5	5.66	5.69	5.56	2.38	4.5	2.38	0.44	5.69		1.88
6	14	1.88	8.5	8.75	12-1.12	11.5	6.72	6.75	6.63	2.62	4.62	2.62	0.5	6.75		2
8	16.5	2.19	10.62	10.75	12-1.25	13.75	8.72	8.75	8.63	3	5.25	3	0.5	8.75		2.25
10	20	2.5	12.75	13.5	16-1.38	17	10.88	10.92	10.75	3.38	6	4.38	0.5	10.88		2.56
12	22	2.62	15	15.75	20-1.38	19.25	12.88	12.92	12.75	3.62	6.12	4.62	0.5	12.94		2.75
14	23.75	2.75	16.25	17	20-1.50	20.75	14.14	14.18	14	3.69	6.5	5	0.5	14.19		2.88
16	27	3	18.5	19.5	20-1.63	23.75	16.16	16.19	16	4.19	7	5.5	0.5	16.19		3.06
18	29.25	3.25	21	21.5	20-1.75	25.75	18.18	18.2	18	4.62	7.25	6	0.5	18.19		3.12
20	32	3.5	23	24	24-1.75	28.5	20.2	20.25	20	5	7.5	6.5	0.5	20.19		3.25
22	34.25	3.75	25.25	26.25	24-1.75	30.63	22.22	22.25	22	5.25	7.75	6.88	0.5			—
24	37	4	27.25	28.25	24-2.00	33	24.25	24.25	24	5.5	8	7.25	0.5	24.19		3.62

Class 900 Forged Steel Flanges Dimension

Nom. Pipe Size	O	T	R	X	#/Dia of Holesa	Bolt Circle Dia	B	B3	H	L	L2	L3c	r	C	Thr
Sizes 1/2″ through 2 1/2″ are identical to class 1500.
3	9.5	1.5	5	5	8-1.00	7.5	3.57	3.6	3.5	2.12	4	2.12	0.38	3.63	1.62
4	11.5	1.75	6.19	6.25	8-1.25	9.25	4.57	4.6	4.5	2.75	4.5	2.75	0.44	4.63	1.88
5	13.75	2	7.31	7.5	8-1.38	11	5.66	5.69	5.56	3.12	5	3.12	0.44	5.69	2.12
6	15	2.19	8.5	9.25	12-1.25	12.5	6.72	6.75	6.63	3.38	5.5	3.38	0.5	6.75	2.25
8	18.5	2.5	10.63	11.75	12-1.50	15.5	8.72	8.75	8.63	4	6.38	4.5	0.5	8.75	2.5
10	21.5	2.75	12.75	14.5	16-1.50	18.5	10.88	10.92	10.75	4.25	7.25	5	0.5	10.88	2.81
12	24	3.12	15	16.5	20-1.50	21	12.88	12.92	12.75	4.63	7.88	5.62	0.5	12.94	3
14	25.25	3.38	16.25	17.75	20-1.63	22	14.14	14.18	14	5.12	8.38	6.12	0.5	14.19	3.25
16	27.75	3.5	18.5	20	20-1.75	24.25	16.16	16.19	16	5.25	8.5	6.5	0.5	16.19	3.38
18	31	4	21	22.25	20-2.00	27	18.18	18.2	18	6	9	7.5	0.5	18.19	3.5
20	33.75	4.25	23	24.5	20-2.13	29.5	20.2	20.25	20	6.25	9.75	8.25	0.5	20.19	3.62
24	41	5.5	27.25	29.5	20-2.63	35.5	24.25	24.25	24	8	11.5	10.5	0.5	24.19	4

Class 1500 Forged Steel Flanges Dimension

Nom. Pipe Size	O	T	R	X	#/Dia of Holesa	Bolt Circle Dia	B	B3	H	L	L2	L3c	r	C	D	Thr
½	4.75	0.88	1.38	1.5	4-0.88	3.25	0.88	0.9	0.84	1.25	2.38	1.25	0.12	0.93	0.38	0.88
¾	5.12	1	1.69	1.75	4-0.88	3.5	1.09	1.11	1.05	1.38	2.75	1.38	0.12	1.14	0.44	1
1	5.88	1.12	2	2.06	4-1.00	4	1.36	1.38	1.32	1.62	2.88	1.62	0.12	1.41	0.5	1.12
1¼	6.25	1.12	2.5	2.5	4-1.00	4.38	1.7	1.72	1.66	1.62	2.88	1.62	0.19	1.75	0.56	1.19
1½	7	1.25	2.88	2.75	4-1.12	4.88	1.95	1.97	1.9	1.75	3.25	1.75	0.25	1.99	0.62	1.25
2	8.5	1.5	3.63	4.12	8-1.00	6.5	2.44	2.46	2.38	2.25	4	2.25	0.31	2.5	0.69	1.5
2½	9.62	1.62	4.13	4.88	8-1.12	7.5	2.94	2.97	2.88	2.5	4.12	2.5	0.31	3	0.75	1.88
3	10.5	1.88	5	5.25	8-1.25	8		3.6	3.5		4.62	2.88	0.38
4	12.25	2.12	6.19	6.38	8-1.38	9.5		4.6	4.5		4.88	3.56	0.44
5	14.75	2.88	7.31	7.75	8-1.63	11.5		5.69	5.56		6.12	4.12	0.44
6	15.5	3.25	8.5	9	12-1.50	12.5		6.75	6.63		6.75	4.69	0.5
8	19	3.62	10.63	11.5	12-1.75	15.5		8.75	8.63		8.38	5.62	0.5
10	23	4.25	12.75	14.5	12-2.00	19		10.92	10.75		10	7	0.5
12	26.5	4.88	15	17.75	16-2.12	22.5		12.92	12.75		11.12	8.62	0.5
14	29.5	5.25	16.25	19.5	16-2.38	25		14.18	14		11.75	9.5	0.5
16	32.5	5.75	18.5	21.75	16-2.63	27.75		16.19	16		12.25	10.25	0.5
18	36	6.38	21	23.5	16-2.88	30.5		18.2	18		12.88	10.88	0.5
20	38.75	7	23	25.25	16-3.12	32.75		20.25	20		14	11.5	0.5
24	46	8	27.25	30	16-3.63	39		24.25	24		16	13	0.5

Class 2500 Forged Steel Flanges Dimension

Nom. Pipe Size	O	T	R	X	#/Dia of Holesa	Bolt Circle Dia	B3	H	L	L2	L3	r	C	Thr
½	5.25	1.19	1.38	1.69	4-0.88	3.5	0.9	0.84	1.56	2.88	1.56	0.12	0.93	1.12
¾	5.5	1.25	1.69	2	4-0.88	3.75	1.11	1.05	1.69	3.12	1.69	0.12	1.14	1.25
1	6.25	1.38	2	2.25	4-1.00	4.25	1.38	1.32	1.88	3.5	1.88	0.12	1.41	1.38
1¼	7.25	1.5	2.5	2.88	4-1.12	5.13	1.72	1.66	2.06	3.75	2.06	0.19	1.75	1.5
1½	8	1.75	2.88	3.12	4-1.25	5.75	1.97	1.9	2.38	4.38	2.38	0.25	1.99	1.75
2	9.25	2	3.63	3.75	8-1.12	6.75	2.46	2.38	2.75	5	2.75	0.31	2.5	2
2½	10.5	2.25	4.13	4.5	8-1.25	7.75	2.97	2.88	3.12	5.62	3.12	0.31	3	2.25
3	12	2.62	5	5.25	8-1.38	9	3.6	3.5		6.62	3.62	0.38
4	14	3	6.19	6.5	8-1.63	10.75	4.6	4.5		7.5	4.25	0.44
5	16.5	3.62	7.31	8	8-1.88	12.75	5.69	5.56		9	5.12	0.44
6	19	4.25	8.5	9.25	8-2.12	14.5	6.75	6.63		10.75	6	0.5
8	21.75	5	10.63	12	12-2.12	17.25	8.75	8.63		12.5	7	0.5
10	26.5	6.5	12.75	14.75	12-2.63	21.25	10.92	10.75		16.5	9	0.5
12	30	7.25	15	17.38	12-2.88	24.38	12.92	12.75		18.25	10	0.5

General notes:

(a)- Bolt hole diameter 1/8 in. larger than bolt diameter.
(b)- Standard bore dimensions provided. See bore chart for other wall thicknesses.
(c)- This dimension is commonly associated with “true” lap joints. Industry standard is to make to the slip on length through the hub.

ASTM Specification of Forged Steel Flanges

Carbon Steel Forged Flange

A105 Forged Flange

 Alloy Steel High-Temp Forged Flange

A182 Gr F1 Forged Flange
A182 Gr F11 Forged Flange
A182 Gr F12 Forged Flange
A182 Gr F22 Forged Flange
A182 Gr F5 Forged Flange
A182 Gr F9 Forged Flange

 Alloy Steel Low-Temp Forged Flange

A350 Gr LF2 Forged Flange
A350 Gr LF3 Forged Flange

 Austenitic Stainless Steel Forged Flange

A182 Gr F304 Forged Flange
A182 Gr F316 Forged Flange
A182 Gr F321 Forged Flange
A182 Gr F347 Forged Flange
A182 Gr F304L Forged Flange
A182 Gr F316L Forged Flange
A182 Gr F317 Forged Flange
A182 Gr F317L Forged Flange
A182 Gr F321 Forged Flange
A182 Gr F310 Forged Flange
A182 Gr 347 Forged Flange

 Nickel Alloy Forged Flange

ASTM B564 Forged Flange
astm b564 uns n06600 Forged Flange
astm b564 uns n06625 Forged Flange
astm b564 uns no4400 Forged Flange
astm b564 uns n08810 Forged Flange
astm b564 uns n08811 Forged Flange
astm b564 uns n08825 Forged Flange
astm b564 uns n04400 Forged Flange
astm b564 uns n10276 Forged Flange
astm b564 uns n10665 Forged Flange

 Titanium Forged Flange

astm b381 grade f2 Forged Flange
astm b381 f5 Forged Flange
astm b381 f3 Forged Flange
astm b381 f12 Forged Flange
astm b381 f7 Forged Flange
Other grades: ASTM B381 F1, F2, F2H, F3, F4, F5, F6, F7, F7H, F9, F10, F11, F12, F13, F14, F15, F16, F16H, F17, F18, F19, F20, F21, F23, F24, F25, F26 , F26H, F27, F28, F29, F30, F31, F32, F33, F34, F35, F36, F37, F38 Forged Flange

Type of Forged Steel Flanges we produce

Forged Flanges Class 150	Forged Flanges Threaded
Forged Flanges Class 300	Forged Flanges With 1/2 Npt
Forged Flanges Class 1500	Forged Flanges With Threaded Hole
Forged Flanges Class 600	Forged Flanges Weight 150#
Forged Flanges Class 900	Forged Flanges Rtj 1500
Forged Flanges Class 2500	Forged Flanges Ring Type Joint
Forged Flanges Pn16	Forged Flanges Flat Face
Forged Flanges Pn10	Forged Flanges Slip On
Forged Flanges Pn40	Forged Flanges Rtj 900
Forged Flanges Pn 160	Forged Flanges Rtj
Forged Flanges Pn 64	Forged Flanges Npt
Forged Flanges Dn150 Pn16	Forged Flanges Jis 5k
Forged Flanges Din 2527	Forged Flanges Jis B2220
Forged Flanges Din En 1092-1	Forged Flanges Jis 10k
Forged Flanges Din 2633	Kf Forged Flanges
Forged Flanges Din 2576	Forged Flanges B16.47
Forged Flanges Asme B16.5 Class 300	Forged Flanges Ansi B16.5 150

Supplying Forged Steel Flanges to our worldwide clients

JK Engineering Works is a Govt. approved certified Industrial Carbon Forged Steel Flanges Exporter in India. All of our Stainless Forged Steel Flanges are manufactured and tested to international standards, and specifications as per DIN, JIS, EN, ASTM etc.

Stock an extensive range of Stainless Forged Steel Flanges, Carbon Steel Forged Steel Flanges Wholesaler in Mumbai, India & we give you best Industrial Forged Steel Flanges Prices in Mumbai.

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