ASTM A105 Carbon Steel Flanges are forged carbon steel flanges used in high-pressure and high-temperature piping systems. Manufactured as per ASTM A105 Flange Specification and ASME SA 105 standards, these flanges offer excellent strength, durability, and weldability. Common types include ASTM A105 Carbon Steel Slip On Flanges, ASTM A105 Carbon Steel Weld Neck Flanges, and blind flanges, widely used in oil & gas, petrochemical, and power industries.
When it comes to building safe and reliable piping systems, choosing the right flange material is critical. ASTM A105 Carbon Steel Flanges are among the most widely used forged flanges due to their strength, durability, and cost-effectiveness.
We supply high-quality ASTM A105 Carbon Steel Flanges that meet real industrial requirements— from high-pressure pipelines to demanding refinery environments. Based on our experience working with engineering contractors and industrial buyers, these flanges are preferred because they offer consistent p erformance and easy installation.
What are ASTM A105 Carbon Steel Flanges?
ASTM A105 Carbon Steel Flanges are forged flanges made from carbon steel material designed for ambient and higher-temperature service in pressure systems. These flanges are used to connect pipes, valves, pumps, and other equipment.
Unlike cast flanges, ASTM A105 Carbon Steel Forged Flanges are manufactured through a forging process, which enhances their mechanical strength and structural integrity.
Key Characteristics:- High tensile strength
- Excellent pressure resistance
- Good weldability
- Cost-effective compared to alloy flanges
Advantages of ASTM A105 Carbon Steel Flanges
- High strength and durability
- Cost-effective solution
- Easy to install and weld
- Available in multiple types
- Suitable for high-pressure systems
Types of ASTM A105 Carbon Steel Flanges
➤ ASTM A105 Carbon Steel Slip On Flanges Manufacturer
As a leading ASTM A105 Carbon Steel Slip On Flanges Manufacturer, we provide flanges that are easy to install and widely used in low to medium pressure systems.
Features:- Slips over pipe before welding
- Lower installation cost
- Suitable for non-critical applications
➤ ASME SA 105 SORF Flange
The ASME SA 105 SORF Flange (Slip-On Raised Face) is commonly used where alignment and ease of installation are required.
Benefits:- Strong welded connection
- Smooth flow transition
- Reduced turbulence
➤ A105 CS Slip On Flange Flat Face
The A105 CS Slip On Flange Flat Face is ideal for low-pressure systems and connections with cast iron equipment.
Advantages:- Even load distribution
- Prevents equipment damage
- Cost-effective solution
➤ ASTM A105 Carbon Steel Weld Neck Flanges
STM A105 Carbon Steel Weld Neck Flanges are designed for high-pressure and high- temperature applications.
Features:- Long tapered hub
- Excellent stress distribution
- High fatigue resistance
➤ Other Types
- Blind Flanges
- Socket Weld Flanges
- Threaded Flanges
- Lap Joint Flanges
ASTM A105 Carbon Steel Flanges Specification Chart
| Parameters | Details |
|---|---|
| Standard | ASTM A105 / ASME SA 105 |
| Material Type | Forged Carbon Steel |
| Product Type | Pipe Flanges |
| Size Range | ½” NB to 48” NB |
| Pressure Class | Class 150, 300, 600, 900, 1500, 2500 |
| Facing Types | Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ) |
| Flange Types | Slip On, Weld Neck, Blind, Socket Weld, Threaded, Lap Joint |
| Manufacturing Process | Forged & Machined |
| Heat Treatment | As Forged / Normalized (A105N) |
| Temperature Range | Up to 425°C (approx.) |
| Applications | Oil & Gas, Petrochemical, Power Plants |
| Testing | UT, RT, Hydro Test, PMI, Visual Inspection |
ASTM A105 Carbon Steel Flanges Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | ≤ 0.35 |
| Manganese (Mn) | 0.60 – 1.05 |
| Phosphorus (P) | ≤ 0.035 |
| Sulfur (S) | ≤ 0.040 |
| Silicon (Si) | 0.10 – 0.35 |
| Vanadium (V) | ≤ 0.08 |
ASTM A105 Carbon Steel Flanges Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | ≥ 485 MPa |
| Yield Strength | ≥ 250 MPa |
| Elongation | ≥ 22% |
| Reduction of Area | ≥ 30% |
| Hardness | ≤ 187 HB |
| Impact Strength | Depends on heat treatment (higher in A105N) |
Applications of ASTM A105 Carbon Steel Flange
These flanges are widely used in:
- Oil & Gas Industry
- Petrochemical Plants
- Power Generation
- Water Treatment Systems
- Marine Applications
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How to Choose the Right ASTM A105 Flange?
Consider:
- Pressure rating
- Temperature conditions
- Type of connection
- Industry requirements
Choosing the correct flange improves safety and performance.
Trusted ASTM A105 Carbon Steel Flanges Suppliers
We provide:
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Get Best Price on ASTM A105 Carbon Steel Flanges
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