KVN Steels – Leading Supplier of Industrial Ferrous and Non-Ferrous Metals

Kvn Steel is a well-established manufacturer of Alloy Steel F91 Flanges. These flanges boast durability, anti-corrosive properties, high tensile strength, and resistance to oxidation, corrosion, stress corrosion cracking, and crevice corrosion. They are known for their good dimensional accuracy, making them suitable for various applications.

Alloy Steel F91 Flanges are crafted using a combination of high-quality metals such as Manganese, Molybdenum, Chromium, and Nickel, which impart excellent features. These flanges are ideal for use in high-pressure and extreme-temperature environments. Our manufactured products offer sturdiness, longevity, and resistance to corrosion, making them highly reliable for industrial use.

Alloy Steel K90901 Ring Type Joint - RTJ Flanges, ASTM A182 Alloy Steel F91 Long Weld Neck Flanges, ASTM A182 Alloy Steel F91 Blind Flanges Exporter, Alloy Steel F91 Weld Neck Flanges, Alloy Steel 1.4903 Flanges Supplier, Alloy Steel F91 Slip on Flanges, Chrome Moly F91 Flanges Manufacturer in India.

Table Of Content
Alloy Steel F91 Flanges Equivalent Grades
Types of Alloy Steel F91 Flanges
Alloy Steel F91 Slip On Flanges
Alloy Steel F91 Weld Neck Flanges
Alloy Steel F91 Blind Flanges
Alloy Steel F91 Threaded Flanges
Alloy Steel F91 Socket Weld Flanges
Alloy Steel F91 Lap Joint Flanges
Alloy Steel F91 RTJ Flanges
Alloy Steel F91 Orifice Flanges
Alloy Steel F91 Long Weld Neck Flanges
Alloy Steel F91 Spectacle Blind Flanges
Alloy Steel F91 Forged Flanges
Alloy Steel F91 Plate Flanges
CrMo F91 Flanges Standard Specification
Type Alloy Steel F91 Flanges Chemical Composition
Alloy Steel F91 Flanges Mechanical Properties
Alloy Steel F91 Flanges Application Industries
Latest Price List of Alloy Steel F91 Flanges
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These flanges find applications in various industries, including nuclear power plants, valve and pump manufacturing, and hydrocarbon processing pipelines. They are also utilized in commercial kitchens and food processing plants due to their easy sterilization and maintenance properties.

Alloy Steel F91 Flanges are made of chromium molybdenum steel alloy, ensuring high rupture resistance while remaining lightweight. They exhibit resistance to sulfide corrosion cracking and hydrogen attacks, along with excellent ductility and durability.

In addition to their inherent characteristics, these flanges are easy to weld. We conduct a series of tests on our products to ensure high-quality standards, including eddy current testing, hydrostatic testing, chemical analysis, mechanical tests, and third-party inspections.

Alloy Steel F91 Flanges Equivalent Grades

STANDARD	UNS	WERKSTOFF NR.
Alloy Steel F91	K90901	1.4903

Chrome Moly F91 Slip On Flanges

Alloy Steel F91 SORF Flanges, UNS K12822 Slip On Flanges, DIN 1.5415 SORF Flanges, ASME SA 182 Alloy Steel F91 Slip-on Raised Face Flanges

Alloy Steel F91 Weld Neck Flanges

ASME SA182 Alloy Steel F91 WNRF Flanges, ASTM A182 Alloy Steel F91 Weld Neck Flanges, DIN 1.5415 Weld Neck Flanges, UNS K12822 Weld Neck Raised Face Flanges

Chromium Molybdenum F91 Blind Flanges

ASTM A182 Alloy Steel F91 Blind Flanges, DIN 1.5415 Blind Flanges, ASME SA182 Alloy Steel F91 BLRF Flanges, Alloy Steel K12822 Blind Raised Face Flanges Supplier

Alloy Steel F91 Threaded Flanges

DIN 1.5415 Threaded Flanges, UNS K12822 Screwed Flanges, ASME SA 182 Alloy Steel F91 Threaded Flanges, ASTM A182 Alloy Steel F91 Threaded Flanges

Alloy Steel F91 Socket Weld Flanges

ASTM A182 Alloy Steel F91 Socket Weld Flanges, Alloy UNS K12822 Socket Weld Flanges, Alloy DIN 1.5415 Socket Weld Flanges

Alloy Steel F91 Lap Joint Flanges

UNS K12822 Lap Joint Flanges, Alloy Steel F91 Lap Joint Flanges, ASTM A182 Chrome Moly 1.5415 Lap Joint Flanges, ASME SA182 Alloy Steel Lap Joint Flanges

Alloy Steel F91 Ring Type Joint Flange

UNS K12822 Ring Type Joint Flange, ANSI B16.9 Alloy Steel RTJ Flanges, ASTM A182 Alloy Steel 1.5415 Ring Type Joint Flanges, ASME SA182 Alloy Steel F91 Ring Type Joint Flanges

Alloy Steel F91 Orifice Flanges

UNS K12822 Orifice Flanges, B16.36 Alloy Steel F91 Orifice Flanges, ASTM A182 Alloy Steel 1.5415 Orifice Flanges, ASME SA 182 Chromium Molydenum F91 Orifice Flanges

Alloy Steel F91 Long Weld Neck Flanges

UNS K12822 Long Weld Neck Flanges, Alloy Steel 1.5415 Long Weld Neck Flanges, ASTM A182 Alloy Steel Long Weld Neck Flanges, ASME SA 182 Alloy Steel F91 Long Weld Neck Flanges

Alloy Steel F91 Spectacle Blind Flanges

UNS K12822 Spectacle Blind Flanges, ANSI / ASME B16.9 Alloy Steel 1.5415 Spectacle Blind Flanges, ASTM A182 Alloy Steel Spectacle Blind Flanges, ASME SA 182 Alloy Steel F91 Spectacle Blind Flanges

Alloy Steel F91 Forged Flanges

UNS K12822 Forged Flanges, B16.9 Alloy Steel Forged Flanges, ASTM A182 Alloy Steel F91 Forged Flanges, ASME SA182 Alloy Steel 1.5415 Forged Flanges

Alloy Steel F91 Plate Flanges

UNS K12822 Plate Flanges, ANSI B16.9 Alloy Steel F91 Plate Flanges, ASTM A182 Alloy Steel 1.5415 Plate Flanges, ASME SA182 Alloy Steel Plate Flanges

Alloy Steel Flanges Specification :

ASTM A182 / ASME SA182

Dimension Standard :

ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.

Standard :

ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.

Size :

1/2" (15 NB) to 48" (1200NB)

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)

DIN Flanges :

DIN 2527, 2566, 2573, 2576, 2641,2642, 2655, 2656, 2627, 2628, 2629, 2631, 2632, 2633, 2634, 2635, 2636, 2637,2638, 2673.

JIS Flanges :

JIS B2220 5K, JIS B2220 10K, JIS B2220 16K, JIS B2220 20K

BS Flanges :

BS4504 PN 6, BS 4504 PN 10, BS4504 PN 16, BS4504 PN 25, BS4504 PN 40, BS 4504 PN 64, BS 4504 PN 100, BS 4504 PN 160, BS 4504 PN 250, BS 10, BS Table D, BS Table E, BS Table F, BS Table H.

Chemical Composition of Alloy Steel F91 Flanges

Grade	C	Mn	P	S	Si	Ni	Ch	Mo	Cb	N
F91	0.08-0.12	0.30-0.60	0.020	0.010	0.20-0.50	0.40	8.0-9.5	0.85-1.05	0.06-0.10	0.03-0.07

Mechanical Properties Of Alloy Steel F91 Flanges

Grade	Tensile Strength (MPa) min	Yield Strength 0.2% Proof (MPa) min	Elongation (% in 50mm) min	Hardness
Grade	Tensile Strength (MPa) min	Yield Strength 0.2% Proof (MPa) min	Elongation (% in 50mm) min	Rockwell B (HR B) max	Brinell (HB) max
F91	585	415	20	-	248 max