Welcome to our E S HAJI & CO!
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(+91) 994 009 7572 / 89563 56925
Monday to Friday
9:00am - 6:00pm
E-mail us
info@eshaji.in
Leading Custom Flange Manufacturers & Suppliers in Chennai
E S HAJI & CO. is a trusted name in Chennai, known for manufacturing high-quality industrial flanges with precision and reliability. With 30+ years of experience, we focus on delivering durable and well-engineered products that meet international standards. Our team combines advanced technology with strict quality control to ensure consistent performance, making us a dependable partner for various industrial applications across India.
Custom Flange Solutions for Industrial Use
At E S HAJI & CO., we specialize in manufacturing sturdy and well-engineered flanges for various industries. From oil & gas to construction, our flanges are highly regarded across Chennai for their consistent quality and compliance with global standards. As one of the leading Custom Flange Manufacturers in Chennai, we offer tailor-made flange solutions crafted from high-grade materials using modern technology. Each flange is engineered for reliability, precision and optimal performance to meet your specific requirements.
Size Range: 15 NB (½") to 3000 NB
Pressure Class: 150# | 300# | 600# | 900# | 1500# | 2500#
Standards: ASME B16.5 / B16.47 / B16.48 / DIN / BS / JIS / IS
Materials: MS, CS, SS, Alloy Steel, Duplex, Hastelloy, Monel, Inconel
Delivery: PAN India & Export | MTC EN 10204 3.1 Provided
What is a Custom Flange?
A custom flange is a forged or machined mechanical disc designed to connect two sections of pipe, valves, pumps or equipment, and is manufactured to non-standard specifications — custom size, bore, bolt circle, facing, pressure class or material — to meet the exact needs of a specific application. At E S HAJI & CO., custom flanges are built from client drawings or engineering requirements using precision forging, heat treatment and CNC machining, and are supplied with full Material Test Certificates (MTC) as per EN 10204 3.1/3.2.
Types of Flanges – Grades & Specifications
Weld Neck Flange
Specifications: ASME B16.5, ANSI B16.47
Slip-On Flange
Specifications: ASME B16.5
Blind Flange
Specifications: ASME B16.5, B16.47
Socket Weld Flange
Specifications: ASME B16.5
Threaded Flange
Specifications: ASME B16.5
Lap Joint Flange
Specifications: ASME B16.5
Long Weld Neck Flange
Specifications: ASME B16.5, MSS SP-44
Orifice Flange
Specifications: ASME B16.36
Spectacle Blind Flange
Specifications: ASME B16.48
Full Specifications of Our Flanges
| Specification | Details |
|---|---|
| Types | Weld Neck (WNRF), Slip-On (SORF), Blind (BLRF), Socket Weld (SWRF), Threaded (TRF), Lap Joint, Long Weld Neck, Orifice, Reducing, Spectacle Blind, Spacer & Ring |
| Standards | ASME B16.5, ASME B16.47 (Series A & B), ASME B16.36, ASME B16.48, MSS SP-44, AWWA C207, DIN, EN1092-1, BS 10, BS 4504, JIS, IS 6392, IS 3589, Custom Drawing |
| Size Range | 15 NB (½") to 3000 NB — covering both standard and oversized diameters |
| Pressure Class (ASME) | 150#, 300#, 400#, 600#, 900#, 1500#, 2500# |
| Pressure Class (DIN) | PN 6, PN 10, PN 16, PN 25, PN 40, PN 64, PN 100 |
| Face Types | Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ), Tongue & Groove (T&G), Male-Female (M&F) |
| Wall Thickness | SCH 10, 20, 30, 40, 80, 120, 160, STD, XS, XXS |
| Manufacturing Process | Forged, CNC Machined, Heat Treated |
| Certifications | ISO, Material Test Certificate (MTC) as per EN 10204 3.1 / 3.2 |
| Third-Party Inspection | Lloyds, Bureau Veritas (BV), Engineers India Ltd (EIL), BHEL, TUV |
Material Grades We Supply
| Material Type | Grades / ASTM Specifications |
|---|---|
| Carbon Steel (CS) | ASTM A105, A105N, A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2, A694 F42, F46, F52, F60, F65, F70, A266 Gr.1/2/3/4 |
| Stainless Steel (SS) | ASTM A182 F304, F304L, F304H, F316, F316L, F316H, F316Ti, F317, F317L, F321, F321H, F347, F347H, F310S, F904L |
| Alloy Steel | ASTM A182 F1, F5, F9, F11, F12, F22, F91 |
| Duplex & Super Duplex | ASTM A182 F44 (254 SMO), F51 (S31803), F53 (S32750), F55 (S32760), F60, F61 |
| Nickel Alloys | Hastelloy C-22, C-276 (ASTM B564), Monel 400 / K500, Inconel 600 / 625 / 718 / 800 / 825 |
| Mild Steel (MS) | IS 2062, IS 2002, ASTM A515 Gr.60/70, A516 Gr.60/70 |
Pressure Class Reference
Selecting the right pressure class is critical for safe, leak-free operation. The pressure class of a flange must match the piping system it connects to. Our flanges are available across every common ASME and DIN class to suit low-pressure utility lines all the way to high-pressure hydrocarbon and steam service.
| Standard | Available Classes |
|---|---|
| ASME/ANSI B16.5 | 150#, 300#, 400#, 600#, 900#, 1500#, 2500# |
| ASME/ANSI B16.47 (Series A & B) | 75#, 150#, 300#, 400#, 600#, 900# |
| DIN / EN1092-1 | PN 6, PN 10, PN 16, PN 25, PN 40, PN 64, PN 100 |
| BS 10 | Table D, E, F, H |
Flange Face Types Available
Key Benefits of Our Custom Flanges
- Manufactured with premium-grade raw materials for long service life.
- Precision machining ensures accurate dimensions and tight sealing.
- Available in multiple pressure classes and international standards.
- Excellent resistance to corrosion, heat, and chemical exposure.
- Custom-built as per client drawings and project specifications.
- Suitable for oil & gas, petrochemical, power, marine, and infrastructure sectors.
- Tested and inspected to ensure leak-proof and reliable performance.
- Bulk production capability with timely nationwide delivery.
Industries We Serve
Our flanges are trusted across India's most demanding industries — built to withstand high pressure, extreme temperatures and corrosive fluids.
Quality Testing & Certifications
Every flange we ship passes multi-stage quality checks before dispatch. Testing is carried out in-house and, where specified, by third-party inspection agencies such as Lloyds, Bureau Veritas (BV), Engineers India Ltd (EIL), BHEL, Nuclear Power Corporation and TUV.
- Chemical & Mechanical Testing (tensile, yield, elongation, hardness)
- Positive Material Identification (PMI)
- Ultrasonic Testing (UT) & Radiographic Testing (RT)
- Dye Penetrant (DP) & Magnetic Particle (MT) testing
- Intergranular Corrosion (IGC) Test for SS grades
- Dimensional Inspection per ASME B16.5 / B16.47
- Material Test Certificate (MTC) per EN 10204 3.1 / 3.2 with every order
Why Choose E S HAJI & CO
- 30+ Years Experience
- PAN India Delivery
- Bulk Orders Accepted
- Strict quality assurance with full material test certificates (MTC).
- Decades of proven industry expertise in flange manufacturing.
- Complete customization – size, pressure rating, facing type, and material as per drawings.
- Advanced CNC machining and modern technology for high precision.
- Competitive pricing without compromising on quality standards.
- On-time delivery across Chennai and throughout India.
- Certified manufacturing processes complying with ASME, ANSI, DIN & IS standards.
- Strong client relationships and long-term industrial partnerships.
- Eco-friendly and sustainable production practices.
- Continuous innovation in flange design and engineering solutions.
Applications of Custom Flanges
Our flanges are widely used in oil & gas, petrochemical plants, power generation, water treatment systems, and heavy industrial pipelines.
Locations We Serve
Chennai & Tamil Nadu: Ambattur, Sriperumbudur, Oragadam, Tambaram, Guindy, Padi, Maraimalai Nagar, Manali, Ennore, Coimbatore, Hosur, Trichy, Madurai.
PAN India: Mumbai, Pune, Ahmedabad, Hyderabad, Bangalore, Kolkata, Delhi, Vadodara, Surat, Vizag, Kochi, Jamshedpur and all major industrial hubs.
Export: UAE, Saudi Arabia, Qatar, Oman, Bahrain, Sri Lanka, Nepal, Bangladesh, Singapore, Malaysia and Africa.
In addition to our specialized flange manufacturing, we also offer comprehensive Custom Metal Fabrication solutions tailored to your project's unique demands. Our expert team provides top-tier Steel Fabrication Services, delivering precision-engineered components for a wide range of industrial applications with a strong commitment to quality and durability. Looking for fasteners? Explore our Foundation Bolts and Anchor Bolts ranges.
Need Custom Flanges for Your Project?
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Get Instant QuoteFrequently Asked Questions about Custom Flanges
What makes E S HAJI & CO. a reliable partner for flange manufacturing?
E S HAJI & CO. is an established manufacturer with 30+ years of experience producing high-quality industrial flanges. Our commitment to precision manufacturing, strict quality control and timely delivery makes us the preferred choice for clients across many sectors.
What types of flanges does E S HAJI & CO. offer?
What size range of flanges do you manufacture?
Which pressure classes and standards are available?
What face types do you offer?
How does E S HAJI & CO. ensure the highest quality in flange manufacturing?
Do you provide Material Test Certificates (MTC)?
What materials does E S HAJI & CO. use for flange production?
How does E S HAJI & CO. maintain quality across production?
Does E S HAJI & CO. provide custom flange manufacturing?
Which industries does E S HAJI & CO. serve with flange solutions?
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Do you provide technical support for flange selection?
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Get in touch
You will find yourself working in a true partnership that results in an incredible experience, and an end product that is the best.
Call us on
(+91) 994 009 7572 / 89563 56925
Email us
info@eshaji.in
