Alloy Steel F91 Flanges

Home
Alloy Steel Flanges
Alloy Steel F91 Flanges

Quality Oriented and ISO Approved Alloy Steel F91 Flanges Manufacturer in India

Alloy Steel F91 Pipe Flanges Suppliers in Mumbai India

We Keep the stock of ASTM A182 Alloy Steel F91 Flanges Manufactured using Standards – ASME/ANSI B16.5, ASME B16.47, MSS-SP-44, BS4504, BS4504, BS1560, BS10 with size range 1/2″ to 36″in Sch 10s, 40s, 80s, 160s, XXS (DN6~DN100) to satisfy any urgent small or large domestic and international inquiries at reasonable prices.

India’s one of the Leaders Amongst Manufacturers, Stockist, Exporters, and Global Suppliers of ASME/ANSI B16.5 / ANSI B16.47 / MSS SP-44 / ASME SA182M Alloy Steel F91 Slip On Flange, Blind Flange, Plate Flange, Orifice Flange, Weld Neck Flange, Lap Joint Flange, Socket Weld Flange, Reducing Flange, Alloy Steel F91 Welded and Seamless Pipe Flanges.

Table Of Content

Alloy Steel F91 Flanges Standard Specifications
What is an Alloy Steel F91 Pipe Flanges & Why Us to buy it?
Alloy Steel F91 Flanges Types
F91 Alloy Steel Flanges Size
Alloy Steel F91 Flanges Standards / Types & Pressure Class
ASTM A182 Alloy Steel F91 Flanges Dimensions
Alloy Steel F91 Flanges Chemical Composition
Alloy Steel F91 Flanges Mechanical Properties
Advantages of Grade F91
Available Grades of A182 Alloy Steel F91 Pipe Flanges
Top Nations we Export and Supply Alloy Steel F91 Pipe Flanges
Alloy Steel F91 Flanges Applications

Nuclear Industry

Refineries Industry

Offshore Oil Drilling Companies

Offshore Oil Drilling

Gas Processing

Hydrocarbon Processing Industry

Hydrocarbon Processing

Fertilizer Industry

Boiler Heat Exchanger Industry

Boiler Heat Exchanger

Petrochemicals

Pharmaceutical Industry

Food Processing Dairy Industry

Engineering Industry

Engineering

Paper Pulp Companies

Paper & Pulp Industry

Cement Industry

Piping Industry

Power Generation

Water Pipe Line

Construction

Industries We Served Happily

We offer huge stock of odd sizes & hard to find Standards – ASME/ ANSI, EN, DIN, AFNOR, AWWA, GOST, BS, JIS, AS, MSS, SA, UNI, AISI Alloy Steel F91 Pipe Flanges, ASTM A182 F91 WNRF Flanges Exporter, Alloy Steel F91 RTJ Flange, ASME SA182M Alloy Steel F91 Class 300 Flange, Alloy Steel Grade F91 Flat Flange, ASTM A182 F91 Alloy Steel EN 1092-1 Flanges, A182 F91 Flange, ASTM A182 F91 Alloy Steel Pipe Flanges offering at market leading prices from Mumbai, India.

Alloy Steel F91 Flanges Specifications

Specifications	ASTM A182 F91 / ASME SA182 F91
Dimension Standard	ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.
Standard Size Range	1/2″ to 36″
Wall Thickness / Schedule	SCH5, SCH10, SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS / 3mm – 40mm
Value Added Services	Hot Dipped Galvanizing, Electro Polish, Sand Blasting, Epoxy & FBE Coating, Threading, Soldering
Standard	ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.
Class / Pressure	150#, 300#, 600#, 900#, 1500#, 2500# \| PN6, PN10, PN16, PN25, PN40, PN64 etc.
Flange Face Type	Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
Grades	ASTM A182 F91

Petromat is ISO approved Manufacturer, Supplier of Alloy Steel F91 Flanges. We are Exporter of ASTM A182 F91 Forged Flanges, A182 F91 Flanges, SA A182 F91 Weld Neck Flanges & A182 F91 Blind Flanges at less expensive due to reasonable man hours in India and enough source of high quality Alloy Steel A182 F91 Flanges at best price available in Mumbai, India. We offer these flanges to our clients in different shapes, specifications and sizes as per their different necessities. We are having decades of experience in Supplying and Exporting Alloy Steel F91 Pipe Flanges to vary countries like Oman, Jordan, Iran, Iraq.

Grade F91 Alloy Steel Flanges with chromium contents of at least 20 % tо 40 %, can be used at temperatures up to 1725 Degree F – 1850 Degree F (941 Degree C – 1010 Degree C). C. Alloy Steel F91 Slip on Flanges have no appreciable price difference between F91 Alloy Steel Flange. Alloy Steel F91 Long Weld Neck Flanges have temperature range where corrosion resistance is important. Grade F91 Alloy Steel Slip On Flange is resistant to atmospheric conditions, water and some chemicals. Grade F91 Flat Face Flanges is mostly used in the Alloy Steel Flange.

Alloy Steel F91 Flanges Types

Price Range: $3.00 – $100.00 / Piece

ASTM A182 Alloy Steel F91 Flanges Size

Products		Size
ASTM A182 Alloy Steel F91 Slip-On Flanges	ASTM A182 Alloy Steel F91 Weld Neck Flanges	Sizes 1/2″ – 36″ Raised Face or Flat Face
ASTM A182 Alloy Steel F91 Blind Flanges	ASTM A182 Alloy Steel F91 Lap Joint Flanges
ASTM A182 Alloy Steel F91 Threaded Flanges	ASTM A182 Alloy Steel F91 Socket Weld Flanges
ASTM A182 Alloy Steel F91 Plate Flanges	ASTM A182 Alloy Steel F91 Ring Joint Type Face (RTJ) Flanges
ASTM A182 Alloy Steel F91 Spectacle Blind Flanges	ASTM A182 Alloy Steel F91 High Hub Blind Flanges
ASTM A182 Alloy Steel F91 Orifice Flanges	ASTM A182 Alloy Steel F91 Reducing Flanges
ASTM A182 Alloy Steel F91 Square Flanges	ASTM A182 Alloy Steel F91 Groove & Tongue Flanges
ASTM A182 Alloy Steel F91 Long Neck Weld Flanges	ASTM A182 Alloy Steel F91 Spades and Ring Spacers Flanges
ASTM A182 Alloy Steel F91 Weldo / Nipo Flanges	ASTM A182 Alloy Steel F91 Expander Flanges

Alloy Steel F91 Flanges Standards / Types & Pressure Class

ASME/ANSI B 16.5	Welding Neck Flange, Slip on Flange, Blind Flange, High Hub Blind Flange, Socket Weld Flange, Lap Joint Flange, Threaded Flange, Ring Type Joint Flange
PRESSURE CLASS	150, 300, 400, 600, 900, 1500, 2500
ASME/ANSI B 16.47	Welding Neck Flange, Blind Flange [Series A & B]
PRESSURE CLASS	75, 150, 300, 400, 600, 900
ASME/ANSI B 16.36	Welding Neck Flange, Slip on Flange, Threaded Flange
PRESSURE CLASS	300, 400, 600, 900, 1500, 2500
PRESSURE CLASS	PN 2.5 TO PN 400
BS 1560 BOSS	Welding Neck Flange, Socket Welding Flange, Slip-On Flange, Blind Flange, Screwed Boss Flange, Lapped Flange
PRESSURE CLASS	150, 300, 400, 600, 900, 1500, 2500
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]	Welding Neck Flange, Hubbed Slip-On Hubbed Threaded, Plate Flange, Loose Plate With Weld On Plate Collar, Blank Flange
BS10	Welding Neck Flange, Plate Slip-On Flange, Screwed Boss Flange, Slip-On Boss Flange, Blind Flange
TABLE	D, E, F, H
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

Alloy Steel F91 Flanges Dimensions

Class 150 Class 300 Class 400 Class 600 / 900 Class 1500 / 2500 Dimensions

Class 150 Alloy Steel F91 Pipe Flanges Dimensions

NOMINAL PIPE SIZE NPS (INCHES)	CLASS 150 PIPE FLANGES
NOMINAL PIPE SIZE NPS (INCHES)	DIAMETER OF FLANGE (INCHES)	NO. OF BOLTS	DIAMETER OF BOLTS (INCHES)	DIAMETER OF BOLT HOLES (INCHES)	BOLT CIRCLE (INCHES)
1	4-1/4	4	1/2	0.62	3-1/8
1-1/4	4-5/8	4	1/2	0.62	3-1/2
1-1/2	5	4	1/2	0.62	3-7/8
1/4	3-3/8	4	1/2	0.62	2-1/4
1/2	3-1/2	4	1/2	0.62	2-3/8
3/4	3-7/8	4	1/2	0.62	2-3/4
2	6	4	5/8	0.75	4-3/4
4	9	8	5/8	0.75	7-1/2
5	10	8	3/4	0.88	8-1/2
6	11	8	3/4	0.88	9-1/2
8	13-1/2	8	3/4	0.88	11-3/4
10	16	12	7/8	1	14-1/4
2-1/2	7	4	5/8	0.75	5-1/2
3	7-1/2	4	5/8	0.75	6
3-1/2	8-1/2	8	5/8	0.75	7
12	19	12	7/8	1	17
14	21	12	1	1.12	18-3/4
20	27-1/2	20	1-1/8	1.25	25
16	23-1/2	16	1	1.12	21-1/4
18	25	16	1-1/8	1.25	22-3/4
24	32	20	1-1/4	1.38	29-1/2

Class 300 Alloy Steel F91 Pipe Flanges Dimensions

NOMINAL PIPE SIZE NPS (INCHES)	CLASS 300 PIPE FLANGES
NOMINAL PIPE SIZE NPS (INCHES)	DIAMETER OF FLANGE (INCHES)	NO. OF BOLTS	DIAMETER OF BOLTS (INCHES)	DIAMETER OF BOLT HOLES (INCHES)	BOLT CIRCLE (INCHES)
1	4-7/8	4	5/8	0.75	3-1/2
1-1/4	5-1/4	4	5/8	0.75	3-7/8
1-1/2	6-1/8	4	3/4	0.88	4-1/2
1/4	3-3/8	4	1/2	0.62	2-1/4
1/2	3-3/4	4	1/2	0.62	2-5/8
3/4	4-5/8	4	5/8	0.75	3-1/4
2	6-1/2	8	5/8	0.75	5
4	10	8	3/4	0.88	7-7/8
5	11	8	3/4	0.88	9-1/4
6	12-1/2	12	3/4	0.88	10-5/8
8	15	12	7/8	1	13
10	17-1/2	16	1	1.12	15-1/4
2-1/2	7-1/2	8	3/4	0.88	5-7/8
3	8-1/4	8	3/4	0.88	6-5/8
3-1/2	9	8	3/4	0.88	7-1/4
12	20-1/2	16	1-1/8	1.25	17-3/4
14	23	20	1-1/8	1.25	20-1/4
20	30-1/2	24	1-1/4	1.38	27
16	25-1/2	20	1-1/4	1.38	22-1/2
18	28	24	1-1/4	1.38	24-3/4
24	36	24	1-1/2	1.62	32

Class 400 Alloy Steel F91 Pipe Flanges Dimensions

NOMINAL PIPE SIZE NPS (INCHES)	CLASS 400 PIPE FLANGES
NOMINAL PIPE SIZE NPS (INCHES)	DIAMETER OF FLANGE (INCHES)	NO. OF BOLTS	DIAMETER OF BOLTS (INCHES)	DIAMETER OF BOLT HOLES (INCHES)	BOLT CIRCLE (INCHES)
1	4-7/8	4	5/8	0.75	3-1/2
1-1/4	5-1/4	4	5/8	0.75	3-7/8
1-1/2	6-1/8	4	3/4	0.88	4-1/2
1/4	3-3/8	4	1/2	0.62	2-1/4
1/2	3-3/4	4	1/2	0.62	2-5/8
3/4	4-5/8	4	5/8	0.75	3-1/4
3-1/2	9	8	7/8	1	7-1/4
4	10	8	7/8	1	7-7/8
5	11	8	7/8	1	9-1/4
6	12-1/2	12	7/8	1	10-5/8
8	15	12	1	1.12	13
2	6-1/2	8	5/8	0.75	5
2-1/2	7-1/2	8	3/4	0.88	5-7/8
3	8-1/4	8	3/4	0.88	6-5/8
10	17-1/2	16	1-1/8	1.25	15-1/4
12	20-1/2	16	1-1/4	1.38	17-3/4
20	30-1/2	24	1-1/2	1.62	27
14	23	20	1-1/4	1.38	20-1/4
16	25-1/2	20	1-3/8	1.5	22-1/2
18	28	24	1-3/8	1.5	24-3/4
24	36	24	1-3/4	1.88	32

Class 600 Alloy Steel F91 Pipe Flanges Dimensions

NOMINAL PIPE SIZE NPS (INCHES)	CLASS 600 PIPE FLANGES
NOMINAL PIPE SIZE NPS (INCHES)	DIAMETER OF FLANGE (INCHES)	NO. OF BOLTS	DIAMETER OF BOLTS (INCHES)	DIAMETER OF BOLT HOLES (INCHES)	BOLT CIRCLE (INCHES)
1	4-7/8	4	5/8	0.75	3-1/2
1-1/4	5-1/4	4	5/8	0.75	3-7/8
1-1/2	6-1/8	4	3/4	0.88	4-1/2
1/4	3-3/8	4	1/2	0.62	2-1/4
1/2	3-3/4	4	1/2	0.62	2-5/8
3/4	4-5/8	4	5/8	0.75	3-1/4
2	6-1/2	8	5/8	0.75	5
2-1/2	7-1/2	8	3/4	0.88	5-7/8
3	8-1/4	8	3/4	0.88	6-5/8
3-1/2	9	8	7/8	1	7-1/4
4	10-3/4	8	7/8	1	8-1/2
10	20	16	1-1/4	1.38	17
12	22	20	1-1/4	1.38	19-1/4
14	23-3/4	20	1-3/8	1.5	20-3/4
16	27	20	1-1/2	1.62	23-3/4
5	13	8	1	1.12	10-1/2
6	14	12	1	1.12	11-1/2
8	16-1/2	12	1-1/8	1.25	13-3/4
18	29-1/4	20	1-5/8	1.75	25-3/4
20	32	24	1-5/8	1.75	28-1/2
24	37	24	1-7/8	2	33

Class 900 Alloy Steel F91 Pipe Flanges Dimensions

NOMINAL PIPE SIZE NPS (INCHES)	CLASS 900 PIPE FLANGES
NOMINAL PIPE SIZE NPS (INCHES)	DIAMETER OF FLANGE (INCHES)	NO. OF BOLTS	DIAMETER OF BOLTS (INCHES)	DIAMETER OF BOLT HOLES (INCHES)	BOLT CIRCLE (INCHES)
1	5-7/8	4	7/8	1	4
1-1/4	6-1/4	4	7/8	1	4-3/8
1-1/2	7	4	1	1.12	4-7/8
1/2	4-3/4	4	3/4	0.88	3-1/4
3/4	5-1/8	4	3/4	0.88	3-1/2
2	8-1/2	8	7/8	1	6-1/2
5	13-3/4	8	1-1/4	1.38	11
6	15	12	1-1/8	1.25	12-1/2
8	18-1/2	12	1-3/8	1.5	15-1/2
10	21-1/2	16	1-3/8	1.5	18-1/2
2-1/2	9-5/8	8	1	1.12	7-1/2
3	9-1/2	8	7/8	1	7-1/2
4	11-1/2	8	1-1/8	1.25	9-1/4
12	24	20	1-3/8	1.5	21
14	25-1/4	20	1-1/2	1.62	22
16	27-3/4	20	1-5/8	1.75	24-1/2
18	31	20	1-7/8	2	27
20	33-3/4	20	2	2.12	29-1/2
24	41	20	2-1/2	2.62	35-1/2

Class 1500 Alloy Steel F91 Pipe Flanges Dimensions

NOMINAL PIPE SIZE NPS (INCHES)	CLASS 1500 PIPE FLANGES
NOMINAL PIPE SIZE NPS (INCHES)	DIAMETER OF FLANGE (INCHES)	NO. OF BOLTS	DIAMETER OF BOLTS (INCHES)	DIAMETER OF BOLT HOLES (INCHES)	BOLT CIRCLE (INCHES)
1	5-7/8	4	7/8	1	4
1-1/4	6-1/4	4	7/8	1	4-3/8
1-1/2	7	4	1	1.12	4-7/8
1/2	4-3/4	4	3/4	0.88	3-1/4
3/4	5-1/8	4	3/4	0.88	3-1/2
2	8-1/2	8	7/8	1	6-1/2
5	14-3/4	8	1-1/2	1.62	11-1/2
6	15-1/2	12	1-3/8	1.5	12-1/2
8	19	12	1-5/8	1.75	15-1/2
2-1/2	9-5/8	8	1	1.12	7-1/2
3	10-1/2	8	1-1/8	1.25	8
4	12-1/4	8	1-1/4	1.38	9-1/2
10	23	12	1-7/8	2	19
12	26-1/2	16	2	2.12	22-1/2
14	29-1/2	16	2-1/4	2.38	25
16	32-1/2	16	2-1/2	2.62	27-3/4
18	36	16	2-3/4	2.88	30-1/2
20	38-3/4	16	3	3.12	32-3/4
24	46	16	3-1/2	3.62	39

Class 2500 Alloy Steel F91 Pipe Flanges Dimensions

NOMINAL PIPE SIZE NPS (INCHES)	CLASS 2500 PIPE FLANGES
NOMINAL PIPE SIZE NPS (INCHES)	DIAMETER OF FLANGE (INCHES)	NO. OF BOLTS	DIAMETER OF BOLTS (INCHES)	DIAMETER OF BOLT HOLES (INCHES)	BOLT CIRCLE (INCHES)
1	6-1/4	4	7/8	1	4-1/4
1-1/4	7-1/4	4	1	1.12	5-1/8
1-1/2	8	4	1-1/8	1.25	5-3/4
1/2	5-1/4	4	3/4	0.88	3-1/2
3/4	5-1/2	4	3/4	0.88	3-3/4
2	9-1/4	8	1	1.12	6-3/4
5	16-1/2	8	1-3/4	1.88	12-3/4
6	19	8	2	2.12	14-1/2
8	21-3/4	12	2	2.12	17-1/4
2-1/2	10-1/2	8	1-1/8	1.25	7-3/4
3	12	8	1-1/4	1.38	9
4	14	8	1-1/2	1.62	10-3/4
10	26-1/2	12	2-1/2	2.62	21-1/4
12	30	12	2-3/4	2.88	24-3/8

Alloy Steel F91 Flanges Chemical Composition

Grade	C	S	Cr	Mo	Mn	Si	P
Alloy Steel F91	0.15 max	0.03	8-10	0.9-1.1	0.3-0.6	0.5-1.0	0.03

Alloy Steel F91 Flanges Mechanical Properties

Tensile Strength	Elongation	Yield Strength (0.2%Offset)
380	20 %	585

Advantages of Grade F91

Anti-corrosive
High tensile strength
he flanges are made up of quality of alloy that adds strength and various good attributes, thus resulting in high demand. • Sturdiness
Durability and longevity
Good dimensional accuracy
Corrosion/oxidation/stress corrosion cracking/crevice corrosion resistance

Available Grades of Alloy Steel Pipe Flanges

Alloy Steel F1 Flanges	Alloy Steel F5 Flanges	Alloy Steel F9 Flanges
Alloy Steel F11 Flanges	Alloy Steel F12 Flanges	Alloy Steel F22 Flanges
Alloy Steel F91 Flanges

Top Nations We Export and Supply Alloy Steel F91 Flanges

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

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

Alloy Steel F91 Flanges Applications

Off-Shore Oil Drilling Companies	Power Generation	Gas Processing	Petrochemicals
Pharmaceutical Equipment	Specialty Chemicals	Chemical Equipment	Pharmaceuticals
Pulp & Paper Industry	Sea Water Equipment	Heat Exchangers	Condensers

Call +91 99679 94496 / +91-22-2388 3775 / 76 OR
Email us at sales@petromatco.com for quick response

SEND YOUR INQUIRY