ASTM / ASME / DIN Certified

Carbon Steel Flanges Manufacturers in India

Unicorn Metal Industries is a leading Carbon Steel Flanges Manufacturers in India, offering durable and precision-engineered flange solutions for piping systems, structural applications, and industrial assemblies. Carbon Steel Flanges are widely used across industries due to their high strength, excellent load-bearing capacity, and ability to perform under high-pressure conditions.

Our product range includes slip-on, weld neck, blind, socket weld, and threaded Carbon Steel Flanges manufactured in accordance with ASTM, ASME, DIN, and international standards. These Carbon Steel Flanges are part of our comprehensive industrial flanges manufacturers range and are widely used in oil & gas, power generation, construction, and heavy engineering industries. With advanced manufacturing capabilities, we produce both standard and custom Carbon Steel Flanges tailored to project-specific requirements.

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15–600 NBSize Range

150#–2500#Pressure Rating

A105 / LF2Core Grades

Carbon Steel Flanges Manufacturers in India

Overview

Carbon Steel Flanges Overview

Carbon Steel Flanges are essential piping components used to connect pipes, valves, and equipment in industrial systems. Known for their high strength and durability, Carbon Steel Flanges ensure secure, leak-proof connections in high-pressure and heavy-duty applications.

One of the key advantages of Carbon Steel Flanges is their ability to withstand mechanical stress, high loads, and fluctuating temperatures. These Carbon Steel Flanges are available in multiple pressure classes and configurations, making them suitable for diverse industrial uses. At Unicorn Metal Industries, Carbon Steel Flanges are manufactured with precision forging and machining processes to ensure dimensional accuracy and consistent performance, similar to high-performance solutions such as Duplex Steel flanges and Alloy Steel flanges used in demanding environments.

Datasheet

Carbon Steel Flanges Specifications

Full mill-standard specifications, material grades, chemical composition, and mechanical properties for our Carbon Steel Flanges range.

Carbon Steel Flanges — Specifications

SHEET 01

Specification	Details
Product	Carbon Steel Flanges
Size Range	15 NB to 600 NB
Pressure Rating	150# to 2500#
Standards	ASTM / ASME / DIN
Form	Slip-On, Weld Neck, Blind, Socket Weld, Threaded
Finish	Machined / Black

Carbon Steel Flanges Material Grades

SHEET 02

Grade	Standard	Application
A105	ASTM / ASME	General piping
A350 LF2	ASTM / ASME	Low temperature

Chemical Composition

SHEET 03

Element	Range
Carbon	0.25–0.35%
Manganese	0.60–1.05%
Silicon	≤0.35%
Sulfur	≤0.04%

Mechanical Properties

SHEET 04

Property	Value	Unit
Tensile Strength	485–620	MPa
Yield Strength	≥250	MPa
Hardness	140–190	HB
Elongation	≥22	%

Product Types

Types of Carbon Steel Flanges We Manufacture

We manufacture a comprehensive range of Carbon Steel Flanges designed for strength, durability, and reliable performance in industrial piping systems and structural applications.

TYPE / 01

Slip-On Carbon Steel Flanges

Designed for easy installation, these flanges slide over the pipe and are widely used in low to moderate pressure systems where alignment flexibility is required.

TYPE / 02

Weld Neck Carbon Steel Flanges

Engineered for high-pressure and high-temperature applications, these flanges provide excellent strength through a strong welded connection and tapered hub design.

TYPE / 03

Blind Carbon Steel Flanges

Used to close pipe ends and isolate sections of piping systems, these flanges ensure leak-proof sealing and are ideal for pressure testing applications.

TYPE / 04

Socket Weld Carbon Steel Flanges

Suitable for small-diameter pipelines, these flanges provide strong connections and are commonly used in high-pressure systems.

TYPE / 05

Threaded Carbon Steel Flanges

Designed for applications where welding is not feasible, these flanges offer secure connections using threaded joints.

TYPE / 06

Lap Joint Carbon Steel Flanges

Ideal for systems requiring frequent dismantling, these flanges provide flexibility and easy alignment.

TYPE / 07

Plate Carbon Steel Flanges

Used in general industrial applications, these flanges offer a cost-effective solution for low-pressure systems.

TYPE / 08

Custom Carbon Steel Flanges

Manufactured as per engineering drawings, these flanges are tailored to meet specific industrial requirements.

Where They're Used

Applications of Carbon Steel Flanges

Carbon Steel Flanges are widely used in industries where strong and reliable piping connections are required. In oil & gas and petrochemical industries, Carbon Steel Flanges are used in pipelines and pressure systems handling fluids under high pressure.

They are also extensively used in power plants, construction, water treatment, and heavy engineering industries. Carbon Steel Flanges provide durability and strength in applications involving high loads and demanding operating conditions.

Our Commitment

Why Choose Our Carbon Steel Flanges

Selecting the right manufacturer is critical when sourcing Carbon Steel Flanges for industrial applications. Unicorn Metal Industries focuses on delivering Carbon Steel Flanges that meet strict engineering and quality standards.

Manufacturing emphasizes precision, traceability, and consistent quality
Custom Carbon Steel Flanges based on drawings and specifications
Reliable performance and timely delivery for project requirements

Quality Assurance

At Unicorn Metal Industries, strict quality control procedures are followed to ensure the reliability of Carbon Steel Flanges.

Raw Material Verification

The process begins with raw material verification to confirm grade and composition before production starts.

Dimensional Inspection

Followed by dimensional inspection and in-process quality checks during manufacturing.

Mechanical Testing

Mechanical testing is conducted to confirm strength and performance against specification.

Final Inspection

Each flange undergoes final inspection before dispatch, ensuring compliance with international standards and consistent quality for industrial applications.

FAQ

Frequently Asked Questions

What are Carbon Steel Flanges used for?

Carbon Steel Flanges are used to connect pipes, valves, and equipment in piping systems. They provide strong and leak-proof connections, making them essential in industries such as oil & gas, construction, and power plants.

Which grade is commonly used in Carbon Steel Flanges?

Grades like A105 and A350 LF2 are commonly used. A105 is suitable for general applications, while LF2 is preferred for low-temperature environments.

What are the types of Carbon Steel Flanges?

Common types include slip-on, weld neck, blind, threaded, and socket weld Carbon Steel Flanges, each designed for specific pressure and application requirements.

Are Carbon Steel Flanges suitable for high-pressure applications?

Yes, Carbon Steel Flanges are widely used in high-pressure systems due to their high strength and load-bearing capacity.

What is the difference between Carbon Steel and Stainless Steel flanges?

Carbon Steel Flanges offer higher strength and are more cost-effective, while Stainless Steel flanges provide better corrosion resistance in aggressive environments.

Can Carbon Steel Flanges be used in corrosive environments?

They can be used with protective coatings, but for highly corrosive conditions, Duplex Steel flanges or Inconel flanges are more suitable.

How do I select the right Carbon Steel Flanges?

Selection depends on pressure, temperature, fluid type, and application requirements. Consulting with experts ensures proper material and design selection.