Carbon Steel Forged Flanges are critical piping components used extensively across Indian industries such as oil & gas, refineries, petrochemicals, power plants, water treatment facilities, sugar mills, fertilizer plants, cement plants, and heavy engineering projects. These flanges are designed to connect pipes, valves, pumps, and other equipment securely while withstanding high pressure, high temperature, and aggressive operating conditions.
At Krishna Industries, we supply high-quality Carbon Steel Forged Flanges manufactured as per ANSI / ASME and DIN standards, catering to both domestic Indian requirements and export-oriented projects. Based in Ahmedabad, Gujarat, we serve customers across India with reliable supply, consistent quality, competitive pricing, and technical support.
Our forged flanges are widely used alongside related piping products such as carbon steel pipe fittings, forged steel flanges, butterfly valves, ball valves, and check valves, making us a preferred sourcing partner for complete piping solutions.
What is a Carbon Steel Forged Flange?
A Carbon Steel Forged Flange is a forged metal ring or disc used to connect piping systems by bolting two flanges together with a gasket in between. The forging process enhances grain structure, resulting in superior mechanical strength, improved fatigue resistance, and excellent pressure-handling capability compared to cast flanges.
In Indian industrial projects, forged flanges are preferred due to their reliability, long service life, and compliance with international standards such as ANSI, ASME, DIN, and EN. Carbon steel, being cost-effective and mechanically robust, makes these flanges ideal for high-demand applications.
Manufacturing Process of Carbon Steel Forged Flanges
Forged flanges supplied by Krishna Industries are manufactured using controlled forging processes to ensure dimensional accuracy and metallurgical integrity:
Selection of high-quality carbon steel billets
Heating to precise forging temperature
Open-die or closed-die forging
Rough machining and heat treatment (normalizing)
Final machining as per drawing or standard
Inspection and testing
This process ensures higher strength, lower porosity, and superior performance under cyclic pressure loads common in Indian industrial environments.
Carbon Steel Grades Offered
We supply Carbon Steel Forged Flanges in commonly demanded Indian and international grades:
ASTM A105
ASTM A105N
ASTM A350 LF2
ASTM A694 F42 / F52 / F60
DIN Carbon Steel Grades (EN standards)
Material Test Certificates (MTC) as per EN 10204 3.1 can be provided on request.
Standards & Specifications
ANSI / ASME Carbon Steel Forged Flanges
ASME B16.5 (Up to 24”)
ASME B16.47 Series A & B (26” and above)
Pressure Classes: 150, 300, 600, 900, 1500, 2500
DIN Carbon Steel Forged Flanges
DIN EN 1092-1
Pressure Ratings: PN6, PN10, PN16, PN25, PN40
Types of Carbon Steel Forged Flanges We Supply
Weld Neck Flange
Slip On Flange
Socket Weld Flange
Threaded Flange
Blind Flange
Lap Joint Flange
Each flange type is selected based on pressure, temperature, pipe size, and application requirements.
Facing Types Available
Raised Face (RF)
Flat Face (FF)
Ring Type Joint (RTJ)
Size Range
ANSI: ½” to 48”
DIN: DN15 to DN1200
Applications in Indian Industries
Oil & Gas Pipelines
Refineries & Petrochemical Plants
Power Generation Plants
Water Supply & Wastewater Treatment
Chemical & Process Industries
Sugar, Cement & Fertilizer Plants
Marine & Offshore Applications
Indian EPC contractors and fabrication units prefer forged flanges due to their reliability under fluctuating operating conditions.
Why Choose Carbon Steel Forged Flanges?
High mechanical strength
Excellent pressure resistance
Long service life
Cost-effective compared to alloy steels
Easy availability in India
Compatibility with standard carbon steel pipes
Quality Control & Testing
All flanges supplied by Krishna Industries undergo strict quality checks:
Dimensional Inspection
Visual Inspection
Chemical Composition Test
Mechanical Properties Test
Hardness Test
Packing & Dispatch
Flanges are packed using:
Anti-rust oil coating
Plastic wrapping
Wooden boxes or pallets
Safe packing ensures damage-free delivery across India.
Why Buy from Krishna Industries?
Krishna Industries is a trusted supplier of industrial piping components based in Ahmedabad, Gujarat. Our strengths include:
Ready stock of standard sizes
Reliable vendor network
Competitive Indian market pricing
Fast delivery across India
Support for bulk & project requirements
We work closely with OEMs, fabricators, traders, and EPC contractors to ensure smooth procurement.
Frequently Asked Questions (FAQ)
1. What is the difference between forged and cast flanges?
Forged flanges have higher strength, better grain structure, and superior pressure resistance compared to cast flanges.
2. Which carbon steel grade is most commonly used in India?
ASTM A105 is the most widely used grade for carbon steel forged flanges.
3. Do you supply DIN and ANSI flanges both?
Yes, we supply both DIN and ANSI standard carbon steel forged flanges.
4. Can you provide MTC with the flanges?
Yes, EN 10204 3.1 Material Test Certificates can be provided on request.
5. What is your minimum order quantity?
MOQ depends on size and type, but we support both small and bulk orders.
6. Do you supply flanges for export projects?
Yes, we supply flanges suitable for export and international EPC projects.
7. What is the delivery time?
Standard sizes are usually available from ready stock; delivery depends on quantity and location.
8. Are custom dimensions available?
Yes, custom dimensions can be arranged against drawings.
9. How are flanges packed?
Flanges are packed with anti-rust coating and wooden packaging for safety.
10. Where is Krishna Industries located?
We are located in Ahmedabad, Gujarat, India.
Contact Krishna Industries
For pricing, technical details, or bulk inquiries for Carbon Steel Forged Flanges (DIN, ANSI), contact:
Krishna Industries Ahmedabad, Gujarat, India Website: www.kelorvalves.com
Get reliable supply, consistent quality, and professional service from a trusted Indian supplier.
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