Carbon Steel Flanges

Carbon Steel Pipe Flanges, ANSI B16.5 Carbon Steel Blind Flange, ANSI B16.48 Carbon Steel Long Weld Neck Flange, Carbon Steel Threaded Flange, WNRF Flange

Carbon Steel Flanges are a popular type of flange primarily composed of carbon steel, offering desirable properties like corrosion resistance, durability, and a polished finish. These flanges come in various types, each serving specific purposes. For example, Carbon Steel Blind Flanges are utilized to close the end of a pipe.

Manufactured using high-grade raw materials, these flanges have a carbon content ranging from 0.25% to 0.60%. The combination of carbon and manganese in high volumes ensures excellent fabrication and good ductility, making them ideal for various industrial applications. Their robust construction and reliable performance make Carbon Steel Flanges a preferred choice in many industries.

Another type of flange worth mentioning is the killed Carbon Steel Forged Flanges. During the melting process, these flanges undergo destruction. The addition of manganese, silicon, and aluminum aids in deoxidation during steel production. Carbon Steel Plate Flanges, welded onto pipes, facilitate bolting and connecting pipes together. They exhibit good ductility, toughness, and perform well in low temperatures, making them suitable for fuel and water pipelines. The cost of these flanges ranges from Rs 398 to Rs 689.

Carbon Steel Slip On Flanges undergo quenching to strengthen and harden the steel and cast iron alloy. Widely used in construction, engineering, and petrochemical industries, the slip-on flanges have their outer diameter welded. Carbon Steel Weld Neck Flanges feature a neck extension at the end, providing a direct butt-welded connection to the pipe. Recommended for critical and severe conditions, Carbon Steel Flanges supplier & manufacturers in India advocate the use of these flanges in such scenarios.

The properties of High Carbon steel flanges include hardness, high strength and wear resistance, moderate ductility.

Carbon Steel Flanges Specifications

Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2, Test Certificates certifying NACE MR0103, NACE MR0175
Specifications	ASTM A105 / ASME SA105, A105N
ASME B16.5 Carbon Steel Flanges size range	1/2" (15 NB) to 48" (1200NB) DN10~DN5000
Carbon 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 Flanges.
Carbon Steel Flanges Standard ANSI	Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS
Carbon Steel Flanges Standard DIN	6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64
Carbon Steel Flanges Standard JIS	5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K
Carbon Steel Flanges Standard UNI	6Bar 10Bar 16Bar 25Bar 40Bar
Carbon Steel Flanges Standard EN	6Bar 10Bar 16Bar 25Bar 40Bar
Main Types	Forged / Threaded / Screwed / Plate
Flange supporting material	Gasket, Ring Joint, Flange Bolts
Carbon Steel Pipe Flanges Test Certificates	EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc
Most common types of Carbon Steel Flanges	Weld Neck Ring Flange (WNRF), Carbon Steel Flanges Slip-On Ring Flange (SORF), Carbon Steel Flanges Blind Ring Flange (BLRF), Carbon Steel Flanges Socket Weld Ring Flange (SWRF), Carbon Steel Flanges Threaded Ring Flange, Carbon Steel Flanges Lap Joint Ring Flange (LJRF), Carbon Steel Flanges Ring Type Joint Flange (RTJF), Carbon Steel Flanges
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 Carbon Steel Flanges Threaded Flanges, Socketweld Flanges, Slip-On Flanges, Blind Flanges, Weld Neck Flanges
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
Specialized manufacturer of	Rtj Flanges Pn16 Flanges DIN 2566 pn16 DIN 2566 en 1092 1 DIN 2566 pn10 Carbon Steel Large Diameter Flanges Carbon Steel Sorf Flanges Carbon Steel Blind Flanges Carbon Steel Table Flanges Carbon Steel Weld Neck Flanges Carbon Steel Threaded Flanges Carbon Steel Slip-On Flanges Carbon Steel Socketweld Flanges Carbon Steel Plate Flanges Carbon Steel Lap Joint Flanges Carbon Steel Loose Flanges Carbon Steel Orifice Flanges Carbon Steel AS 4087 Water Flanges
Carbon Steel Flanges Standard	ANSI DIN, GOST, JIS, UNI, BS, AS2129, AWWA, EN, SABS, NFE etc. 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) Any other specilised flanges 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 The other standard: AWWA C207; EN1092-1, GOST12820, JIS B2220; KS B1503, SABS1123; NFE29203;UNI2276
Key markets and industries for Carbon Steel Flanges	Bitumen upgraders. Heavy oil refineries. Nuclear power (mostly seamless). Petrochemicals and acids.
Export to	Ireland, Singapore, Indonesia, Ukraine, Saudi Arabia, Spain, Canada, USA, Brazil, Thailand, Korea, Iran, India, Egypt, Oman, Dubai, Peru, etc
Carbon Steel Flanges Application	To Connect Pipe & Tubes in Petroleum, Power, Chemical, Construction, Gas, Metallurgy, Shipbuilding etc

Carbon Steel Flanges Chemical Composition

Element	Composition,%
Carbon (C)	0.35max
Manganese (Mn)	0.60–1.05
Phosphorus (P)	0.035max
Sulfur (S)	0.040max
Silicon (Si)	0.10–0.35
Copper (Cu)	0.40max
Nickel (Ni)	0.40max
Chromium (Cr)	0.30max
Molybdenum (Mo)	0.12max
Vanadium (V)	0.08max

Carbon Steel Flanges Mechanical Properties

Mechanical Properties	Requirements
Tensile strength,min,psi [MPa]	70000 [485]
Yield strength,min,psi [MPa]	36000 [250]
Elongation, min, %	30
Reductionofarea,min,%	30
Hardness,HB,max	187

Carbon Steel Flanges Standards / Types And Pressure Class

ASME/ANSI B 16.5	Threaded Flange, Ring Type Joint Flange, Blind Flange, Welding Neck Flange, Slip on Flange,High Hub Blind Flange, Socket Weld Flange, Lap Joint Flange
PRESSURE CLASS	150, 300, 400, 600, 900, 1500, 2500
ASME/ANSI B 16.47	Blind Flange [Series A & B], Welding Neck Flange
PRESSURE CLASS	75, 150, 300, 400, 600, 900
ASME/ANSI B 16.36	Slip on Flange, Welding Neck Flange, Threaded Flange
PRESSURE CLASS	300, 400, 600, 900, 1500, 2500
DIN FLANGES	DIN 2527, 2566, 2573, 2576, 2641,2642, 2655, 2656, 2627, 2628, 2629, 2631, 2632, 2633, 2634, 2635, 2636, 2637,2638, 2673
PRESSURE CLASS	PN 6 TO PN 100
BS 4504 SEC 3.1	Welding Neck Flange, Hubbed Slip on Flange, Hubbed Threaded Flange, Lapped Pipe End Flange, Plate Flange, Loose Plate Flange, Loose Plate With Weld Neck Flange, Blank Flange
PRESSURE CLASS	PN 2.5 TO PN 40
BS 4504[PART 1]	Plate Flange, Loose Plate With Weld On Plate Collar, Blank Flange, Welding Neck Flange, Hubbed Slip-On Hubbed Threaded
PRESSURE CLASS	PN 2.5 TO PN 400
BS 1560 BOSS	Blind Flange, Screwed Boss Flange, Lapped FlangeWelding Neck Flange, Socket Welding Flange, Slip-On Flange
PRESSURE CLASS	150, 300, 400, 600, 900, 1500, 2500
BS10	Blind Flange, Welding Neck Flange, Plate Slip-On Flange, Screwed Boss Flange, Slip-On Boss Flange
TABLE	D, E, F, H

Carbon Steel Flanges Weight Chart

Standard	Class	Diameter	Bolt Circle Diameter	Number of Bolts	Bolt Size	Diameter of Bolt Hole
AS4087	PN14	95	67	4	M12	14
AS 2129 Flanges	Table C	95	67	4	13	14
	Table D	95	67	4	13	14
	Table E	95	67	4	13	14
	Table F	95	67	4	13	14
	Table H	114	83	4	16	17
	Table J	114	83	4	16	17
ANSI B16.5	ANSI 150	89	60	4	13	16
	ANSI 300	95	67	4	13	16
	ANSI 600	95	67	4	13	16
	ANSI 900	121	83	4	19	22
	ANSI 1500	121	83	4	19	22
ISO 7005 (DIN) Flange	PN6	80	55	4	M10	11
	PN10	95	65	4	M12	14
	PN16	95	65	4	M12	14
	PN20	90	60.5	4	M14	16
	PN25	95	65	4	M12	14
	PN40	95	65	4	M12	14

Carbon Steel Flanges Pressure Ratings

Temperature (F°)	150#	300#	400#	600#	900#	1500#	2500#
< 100	285	740	985	1480	2220	3705	6170
200	260	680	905	1360	2035	3395	5655
300	230	655	870	1310	1965	3270	5450
400	200	635	845	1265	1900	3170	5280
500	170	605	805	1205	1810	3015	5025
600	140	570	755	1135	1705	2840	4730
650	125	550	730	1100	1650	2745	4575
700	110	530	710	1060	1590	2655	4425
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	230	305	460	690	1150	1915
950	35	135	185	275	410	685	1145
1000	20	85	115	170	255	430	715
Hydrostatic Test Pressure (psig)	450	1125	1500	2225	3350	5575	9275

Carbon Steel Flange dimensions

Nominal Size	Outside Diameter (OD)	Bore Diameter (B)	No. of Bolt Holes	Bolt Hole Diam.	Bolt Circle (BC)	Thickness (T)	Hub Length (L)	Hub Diam. (H)	Lap Radius ( R )	Approx. Weight (lbs)
1	4.25	1.38	4	0.625	3.13	0.563	0.688	1.938	0.13	2
1 1/4	4.68	1.72	4	0.625	3.50	0.625	0.813	2.312	0.19	3
1 1/2	5.00	1.97	4	0.625	3.88	0.688	0.875	2.563	0.25	3
2	6.00	2.46	4	0.750	4.75	0.750	1.000	3.063	0.31	5
2 1/2	7.00	2.97	4	0.750	5.50	0.875	1.125	3.563	0.31	7
3	7.50	3.60	4	0.750	6.00	0.938	1.188	4.250	0.38	8
3 1/2	8.50	4.10	8	0.750	7.00	0.938	1.250	4.812	0.38	11
4	9.00	4.60	8	0.750	7.50	0.938	1.312	5.312	0.44	13
5	10.00	5.69	8	0.875	8.50	0.938	1.438	6.438	0.44	15
6	11.00	6.75	8	0.875	9.50	1.000	1.562	7.562	0.50	18
8	13.50	8.75	8	0.875	11.75	1.125	1.750	9.688	0.50	30
10	16.00	10.92	12	1.000	14.25	1.188	1.938	12.000	0.50	42
12	19.00	12.92	12	1.000	17.00	1.250	2.188	14.375	0.50	64
14	21.00	14.19	12	1.125	18.75	1.375	2.250	15.750	0.50	90
16	23.50	16.19	16	1.125	21.25	1.438	2.500	18.000	0.50	98
18	25.00	18.20	16	1.250	22.75	1.562	2.688	19.875	0.50	125
20	27.50	20.25	20	1.250	25.00	1.688	2.875	22.000	0.50	160
24	32.00	24.25	20	1.375	29.50	1.875	3.250	26.125	0.50	212
30**	38.75	30.25	28	1.375	36.00	2.125	3.500	32.750	0.50	305
36**	46.00	36.25	32	1.625	42.75	2.375	3.750	39.250	0.50	440

Carbon Steel Flanges Export Destinations

Kuwait, Iran, China, Bhutan, Ukraine, Vietnam, Namibia, Hungary, Gabon, India, Finland, Sri Lanka, Saudi Arabia, Trinidad & Tobago, Thailand, Gambia, Belgium, Puerto Rico, Costa Rica, Croatia, Ireland, Tibet, Lebanon, Romania, Denmark, Bahrain, Poland, Germany, Taiwan, Spain, United States, Algeria, Chile, Portugal, Jordan, Nigeria, Bolivia, Kazakhstan, Ecuador, Norway, Oman, Mexico, Greece, Kenya, Indonesia, Bangladesh, New Zealand, Philippines, Singapore, Nigeria, Argentina, Mexico, Russia, France, Italy, Poland, South Korea, Colombia, Belarus, Peru, Nepal, Japan, Iraq, Yemen, Australia, Slovakia, Austria, Macau, Afghanistan, Switzerland, Venezuela, Tunisia, Czech Republic, Egypt, Bulgaria, Mongolia, Lithuania, Canada, Chile, Angola, Turkey, Netherlands, Israel, Iran, Sweden, Malaysia, Hong Kong, Brazil, United Arab Emirates, Azerbaijan, Morocco, United Kingdom, Qatar, Serbia, Libya, South Africa, Zimbabwe, Estonia, Ghana.

Domestic Supply of Carbon Steel Flanges

Jeddah, Ahmedabad, Hong Kong, Sydney, Muscat, Rio de Janeiro, Edmonton, Petaling Jaya, Howrah, Vadodara, Los Angeles, Houston, London, Port-of-Spain, Faridabad, Bogota, Cairo, Mexico City, Sharjah, Singapore, Madrid, Moscow, Granada, Jakarta, Colombo, Algiers, Montreal, Chandigarh, New York, Chiyoda, Geoje-si, Ernakulam, Hyderabad, Al Khobar, Ahvaz, Melbourne, Pimpri-Chinchwad, Nagpur, Karachi, Doha, Busan, Secunderabad, Atyrau, Santiago, Rajkot, Coimbatore, Kolkata, New Delhi, Dubai, Jaipur, Navi Mumbai, Bengaluru, Gurgaon, Chennai, Ludhiana, Surat, Hanoi, Nashik, Dammam, Thiruvananthapuram, Tehran, Baroda, Ankara, Bangkok, Ranchi, Abu Dhabi, Calgary, Dallas, Aberdeen, Kuwait City, Pune, Haryana, Kuala Lumpur, Vung Tau, Lagos, Thane, Ho Chi Minh City, Caracas, Indore, Mumbai, Kanpur, Ulsan, Courbevoie, Visakhapatnam, Milan, La Victoria, Gimhae-si, Seoul, Istanbul, Bhopal, Jamshedpur, Noida, Toronto, Riyadh, Manama, Perth, Al Jubail, Brisbane.