Alloy Steel Flanges

Leading Supplier of Alloy Steel Flanges – Certified ASME B16.5 / B16.47 / ASTM A182

Nandini Steel is a reliable alloy steel flanges manufacturer in India that offers flanges that are strong, durable and high performance. Alloy steel flanges are components used to connect pipes, pumps, valves and other equipment. These parts are applied to all kinds of piping systems. Our flanges are produced with high-grade alloy steels incorporating chromium, molybdenum and nickel elements for added resistance and mechanical strength. Our flanges conform to specifications such as ANSI/ASME B16.5, B16.48 and B16.47 Series A and B and EN 1092, BS 4504, BS 10, DIN standard for guarantee of reliability.

Top Alloy Steel Flanges Manufacturer in Mumbai – ASTM/ASME Standard Flanges in All Sizes, Pressure Ratings & Grades at Factory Prices

Key Features of Alloy Steel Flanges

Strength and Toughness: Alloy Steel flanges possess excellent mechanical characteristics that support pressure and temperature under high conditions.
Resistance to Heat and Corrosion: Flanges are heat and corrosion resistant. They can be used for chemical and petroleum industries without failure.
High Number of Types: We provide a full range of Alloy Steel Blind Flanges, Alloy Steel Weld Neck Flanges, slip-on, socket weld and threaded for different piping applications.
Dimensional Control: Each flange is made with tightest tolerances to ensure leak-free connection and ease of installation.
Comply to International Standards: All products meet necessary international specifications, including ASTM A182 Low Alloy Steel flanges ANSI B16.5 to ensure durability.

Alloy Steel Flanges vs Other Material Flanges

Alloy Steel Flanges possess excellent tensile strength and are capable of withstanding harsh temperature conditions compared to carbon steel flanges. Their solid performance in extremely tough environments makes them perfect for use in refineries, power plants, and offshore facilities.

Applications and Types of Alloy Steel Flanges

Alloy Steel Flanges are used in petrochemical, oil and gas, power generation and ship building industries. They have pressure and stress handling capability and hence used for pipelines, reactors, heat exchangers, and boilers. Alloy Steel Flanges are manufactured according to application types based on pipe and connection requirement.

Packaging, Testing & Delivery

Our flanges are packed in pallets or wooden crates to safely transport. All flanges undergo quality inspection like hydro testing, PMI testing and dimensional inspection. We are ISO 9001:2015 certified and commit to quality and customer satisfaction.

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Other Types Alloy Steel Flanges

Alloy Steel Weld Neck Flange

Alloy Steel Slip on Flange

Alloy Steel Blind Flange

Alloy Steel Threaded Flange

Alloy Steel Flanges Specification

Standard: ASTM A182 / ASME SA182
Dimensions: 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
Flange Size Chart: 1/2″ (15 NB) to 48″ (1200NB), DN10~DN5000
Pressure Rating: Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS
Pressure Calculation in DIN: 6Bar, 10Bar, 16Bar, 25Bar, 40Bar / PN6, PN10, PN16, PN25, PN40, PN64
JIS: 5K, 10K, 16K, 20K, 30K, 40K, 63K
Flange Connection / 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, Flange Pipe
Origin: West Europe / Japan / Indian / USA / Korean
Types of Flanges: Threaded / Screwed / Forged / Plate
Coating: Yellow Transparent, Zinc Plated, Anti-rust Paint, Oil Black Paint, Cold and Hot Dip Galvanized
Test Of Flange: Direct-reading Spectrograph, Ultrasonic flaw detector, Magnetic particle detector, X-ray detector, Hydrostatic testing machine
Production Technique Used: Heat treated, Forged and Machined
Equipment: Press machine, Bending machine, Pushing Machine, Sand-blasting machine, Electric bevelling machine etc.
Test Certificates: EN 10204/3.1B, Raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report, etc

Alloy Steel Flanges Chemical Composition

Grade	C	Mn	Si	P	S	Cr	Mo
F1	0.15 max	0.3-0.6	0.5	0.03	0.03	4-6	0.44-0.65
F5	0.15 max	0.3-0.6	0.5-1.0	0.03	0.03	4-6	0.44-0.65
F9	0.15 max	0.3-0.6	0.5-1.0	0.03	0.03	8-10	0.9-1.1
F11	0.5-0.15	0.3-0.6	0.5-1.0	0.03	0.03	1.0-1.5	0.44-0.65
F12	0.15 max	0.3-0.6	0.5	0.03	0.03	4-6	0.44-0.65
F22	0.15 max	0.3-0.6	0.5	0.03	0.03	4-6	0.44-0.65
F91	0.15 max	0.3-0.6	0.5-1.0	0.03	0.03	8-10	0.9-1.1

Mechanical Properties of Alloy Steel Flanges

Grade	Tensile Strength	Yield Strength (0.2%Offset)	Elongation
F1	275	485	20 %
F5	275	485	20 %
F9	380	585	20 %
F11	205	415	20 %
F12	275	485	20 %
F22	205	415	20 %
F91	380	585	20 %

Equivalent Grades For Alloy Steel Flanges

Material Group	Common Name	Type	UNS	Forging Spec.	Casting Spec. Equivalent	DIN	DIN W. No	Application
Low AS	Moly Steel	C-1/2Mo	K12822	A182-F1 cl2	A217-WC1	15M03	1.5415	Up to 470ºC* (875ºF)
	AS Chrome Moly	1.1/4Cr-1/2Mo	K11572	A182-F11 cl2	A217-WC6	13CRM044	1.7335	Up to 593ºC (1100ºF)
		2.1/4Cr-1Mo	K21590	A182-F22 cl3	A217-WC9	10CRM0910	1.7380	Up to 593ºC (1100ºF), HP steam
		5Cr-1/2Mo	K41545	A182-F5/F5a	A217-C5	12CRMO195	1.7362	High temp refinery service
		9Cr-1Mo	K90941	A182-F9	A217-C12	X 12 CrMo 9 1	1.7386	High temp erosive refinery service
		9Cr-1Mo-V		A182-F91	A217-C12A	X 10 CrMoVNb 9 1	1.4903	High pressure steam

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Alloy Steel Flanges Thickness Chart

Pipe Normal Diam.		O.D. Flange	Thk. Of Flange Min	Diam. of Hub	Diameter of Raised Face	Length Hub.Y	Thread Length	Diam. of Bolt Circle	Diam. of Bolt Holes	Number of Bolts	Diam. of Bolts (inch)	KG	LB
inch	dn	O	C	X	G	Y	T	BC	BH	BN	BD
1/2″	15	89.00	11.20	30.20	35.10	15.70	15.70	60.50	15.80	4	1/2″	0.4	0.9
3/4″	20	98.50	12.70	38.10	42.90	15.70	15.70	69.90	15.80	4	1/2″	0.7	1.5
1″	25	108.00	14.20	49.30	50.80	17.50	17.50	79.30	15.80	4	1/2″	0.8	1.8
1-1/4″	32	117.50	15.70	58.70	63.50	20.60	20.60	88.90	15.80	4	1/2″	1.2	2.6
1-1/2″	40	127.00	17.50	65.00	73.20	22.40	22.40	98.60	15.80	4	1/2″	1.5	3.3
2″	50	152.50	19.10	77.70	91.90	25.40	25.40	120.70	19.10	4	5/8″	2.3	5.1
2-1/2″	65	178.00	22.40	90.40	104.60	28.40	28.40	139.70	19.10	4	5/8″	3.7	8.1
3″	80	190.50	23.90	108.00	127.00	30.20	30.20	152.40	19.10	4	5/8″	4.1	9
3-1/2″	90	216.00	23.90	122.20	139.70	31.80	31.80	177.80	19.10	8	5/8″	5.1	11.2
4″	100	228.50	23.90	134.90	157.20	33.30	33.30	190.50	19.10	8	5/8″	5.9	13
5″	125	254.00	23.90	163.60	185.70	36.60	36.60	215.90	22.40	8	3/4″	7	15.4
6″	150	279.50	25.40	192.00	215.90	39.60	39.60	241.30	22.40	8	3/4″	8.4	18.5
8″	200	343.00	28.40	246.10	269.70	44.50	44.50	298.50	22.40	8	3/4″	13	28.6
10″	250	406.50	30.20	304.80	323.90	49.30	49.30	362.00	25.40	12	7/8″	18	39.5
12″	300	482.50	31.80	365.30	381.00	55.60	55.60	431.80	25.40	12	7/8″	29	64
14″	350	533.50	35.10	400.10	412.80	57.20	57.20	476.30	28.50	12	1″	39	86
16″	400	597.00	36.60	457.20	469.90	63.50	63.50	539.80	28.50	16	1″	47	103
18″	450	635.00	39.60	505.00	533.40	68.30	68.30	577.90	31.80	16	1 1/8″	57	126
20″	500	698.50	42.90	558.80	584.20	73.20	73.20	635.00	31.80	20	1 1/8″	76	167
24″	600	813.00	47.80	663.40	692.20	82.60	82.60	749.30	35.10	20	1 1/4″	97	214

Weight Chart of Alloy Steel Flanges

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

Alloy Steel Flanges Stockist Distributor of Following Manufacturers

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Alloy Steel Flanges Manufacturing Process

Pan India Supply of Alloy Steel Flanges

Mumbai (Maharashtra)	Delhi	Bengaluru (Karnataka)	Chennai (Tamil Nadu)
Kolkata (West Bengal)	Hyderabad (Telangana)	Ahmedabad (Gujarat)	Pune (Maharashtra)
Jaipur (Rajasthan)	Surat (Gujarat)	Chandigarh	Lucknow (Uttar Pradesh)
Indore (Madhya Pradesh)	Coimbatore (Tamil Nadu)	Kochi (Kerala)	Visakhapatnam (Andhra Pradesh)
Nagpur (Maharashtra)	Patna (Bihar)	Bhopal (Madhya Pradesh)	Vadodara (Gujarat)
Mysuru (Karnataka)	Thane (Maharashtra)	Rajkot (Gujarat)	Vijayawada (Andhra Pradesh)
Agra (Uttar Pradesh)	Nashik (Maharashtra)	Guwahati (Assam)	Kanpur (Uttar Pradesh)
Faridabad (Haryana)	Gurugram (Haryana)	Noida (Uttar Pradesh)	Shimla (Himachal Pradesh)
Raipur (Chhattisgarh)	Udaipur (Rajasthan)	Kolkata (West Bengal)	Bhubaneswar (Odisha)
Dehradun (Uttarakhand)	Ranchi (Jharkhand)	Jamshedpur (Jharkhand)	Chandrapur (Maharashtra)
Dhanbad (Jharkhand)	Aligarh (Uttar Pradesh)	Bhubaneswar (Odisha)	Aurangabad (Maharashtra)
Tiruchirappalli (Tamil Nadu)	Srinagar (Jammu & Kashmir)	Ludhiana (Punjab)	Warangal (Telangana)
Kolkata (West Bengal)	Bikaner (Rajasthan)	Panaji (Goa)	Guntur