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Kolkata, India

Alloy Steel Blind Flanges Manufacturer and Supplier in Kolkata, India

Veer Flanges Kolkata, India has developed a global reputation as a supplier and manufacturer of high quality Alloy Steel Blind Flanges. Veer Flanges has built its reputation through precision engineering and consistent production performance. We supply Alloy Steel Blind Flanges to all major industries, including oil & gas; petrochemicals and power generation among others. Our Alloy Steel Blind Flanges are supplied with extreme strength and are also strongly resistant to corrosion and deformation under high pressure. Veer Flanges is dedicated to quality and customer satisfaction, we ensure that we consistently meet deadlines for deliveries to ensure we fulfil commitments to our clients and that our products have passed rigorous international quality standards.

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Alloy Steel Blind Flanges in india

Alloy Steel Blind Flanges

Alloy Steel Flat Face Blind Flanges in india

Alloy Steel Flat Face Blind Flanges

Alloy Steel Raised Face Blind Flanges in india

Alloy Steel Raised Face Blind Flanges

Alloy Steel Blind Flanges are manufactured using alloyed metals, including materials like chromium, molybdenum and nickel giving them exceptional strength corrosion-resistance, and toughness. These alloys typically contain 0.25 – 0.55% carbon 0.80 – 2.0% chromium and 0.15 – 0.25% molybdenum. Alloy steel blind flanges have a tensile strength rating of roughly 600 MPa and while they are durable enough to withstand heavy weights and pressures, they can also withstand high temperatures. Alloy steel blind flanges are designed to seal pipe ends in order to terminate or isolate sections of a piping system.

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Alloy Steel Blind Flanges Specification

SpecificationASTM A182 / ASME SA182
Size Chart1/2″ (15 NB) to 48″ (1200NB) DN10~DN5000
StandardsANSI/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
Pressure Rating ANSIClass 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS
Pressure Calculation in DIN6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64
UNI6Bar 10Bar 16Bar 25Bar 40Bar
EN6Bar 10Bar 16Bar 25Bar 40Bar
CoatingOil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized
Test CertificatesEN 10204/3.1B
Raw Materials Certificate
100% Radiography Test Report
Third Party Inspection Report, etc
Production TechniqueForged, Heat treated and machined
Connect Type/ Flange Face TypeRaised 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

TestDirect-reading Spectrograph, Hydrostatic testing machine, X-ray detector, UI trasonic flaw detector, Magnetic particle detector
EquipmentPress machine, Bending machine, Pushing Machine, electric bevelling machine, Sand-blasting machine etc
Manufacturer of

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)

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 ASTM A182 Ff9 Alloy Steel Flanges
The other standard: AWWA C207; EN1092-1, GOST12820, JIS B2220; KS B1503, SABS1123; NFE29203; UNI2276

GradesAlloy Steel F1, F5, F9, F11, F22, F91
Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2, Test Certificates certifying NACE MR0103, NACE MR0175

Largest Alloy Steel Blind Flanges Supplier in Kolkata, India

Veer Flanges, a leading supplier in Kolkata, India, offers an extensive selection of Alloy Steel Blind Flanges, including weld neck flanges, slip-on flanges, blind flanges, threaded flanges, and lap joint flanges. Designed for diverse industrial applications, our high-quality inventory and commitment to exceptional service make us a trusted choice for flange products in the region.

Contact us to get a quick quote for your requirement.

We offer These Flanges as per DIN, ISO, JIS or ANSI Standard.

Alloy steel Blind flanges are utilized when it is necessary to plug the end of a piping system, while allowing for easy access for repairs, inspections, or expansions later. Alloy steel blind flanges are utilized because of their strength, resistance to corrosion, as well as their ability to handle very high temperatures, and high amount of pressure. They are commonly used for applications that are critical in nature, such as oil and gas, petrochemical, power generation, and chemical processing. Alloy steel blind flanges help to eliminate leaks, as well as maintain system quality, in environments where there is high-stress placed on the piping and flanges.

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Types of Alloy Steel Blind Flanges

Alloy Steel Flat Face Blind Flanges in india
Alloy Steel Flat Face Blind Flanges
Alloy Steel Ring Joint Blind Flanges in india
Alloy Steel Ring Joint Blind Flanges
Alloy Steel Raised Face Blind Flanges in india
Alloy Steel Raised Face Blind Flanges
Alloy Steel Male and Female Blind Flanges in india
Alloy Steel Male and Female Blind Flanges
Alloy Steel BLFF Flanges in india
Alloy Steel BLFF Flanges
Alloy Steel Tongue and Groove Blind Flanges in india
Alloy Steel Tongue and Groove Blind Flanges

Are Custom Sizes Available for Alloy Steel Blind Flanges?

Yes, we offer custom sizes for Alloy Steel Blind Flanges to meet specific project needs. Our team at Veer Flanges is committed to providing tailored solutions for all your requirements. For more details, contact us at sales@veerflanges.co.in.

Material Testing

We are renowned for delivering products with precise, accurate dimensions. Each product undergoes thorough testing, both destructive and non-destructive, to ensure quality before being shipped to our customers.

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Application Industry of Alloy Steel Blind Flanges

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