ASTM A53 Grade B Carbon Steel Fittings Manufacturer, Supplier & Exporter
ASTM A53 Grade B Carbon Steel Fittings are widely used for connecting, redirecting, reducing, and terminating piping systems in industrial applications. These fittings include elbows, tees, reducers, return bends, and forged fittings manufactured according to ASTM A234 WPB, ASTM A105, ASME B16.9, and ASME B16.11 standards, offering excellent strength, durability, and weldability.
ASTM A53 Grade B Carbon Steel Fittings
ASTM A53 Grade B Carbon Steel Fittings are among the most commonly used piping components in industrial piping systems. These fittings are designed to connect pipes, change flow direction, branch pipelines, and reduce pipe sizes while maintaining system integrity under pressure and temperature variations.
We supply a complete range of ASTM A53 Grade B Carbon Steel Fittings manufactured to international standards for use in oil and gas, petrochemical, power generation, water treatment, chemical processing, marine, and infrastructure projects. Our fittings are known for their dimensional accuracy, excellent mechanical strength, corrosion resistance, and long service life.
The product range includes ASTM A53 Grade B Fittings, A53 Carbon Steel Pipe Fittings, ASTM A53 Gr B Seamless Pipe Fittings, ASTM A234 WPB Fittings, ASTM A105 Forged Fittings, and various butt weld and threaded fitting configurations.

Key Features of ASTM A53 Grade B Carbon Steel Fittings
- High tensile strength and structural reliability
- Excellent weldability and fabrication performance
- Suitable for high-temperature and moderate-pressure service
- Available in seamless and forged construction
- Corrosion-resistant surface with optional coatings
- Long operational life with minimal maintenance
- Cost-effective compared with alloy alternatives
- Wide compatibility with carbon steel piping systems
Types of ASTM A53 Grade B Fittings We Supply
Our range of ASTM A53 Grade B Fittings is designed to support demanding industrial environments.
ASTM A53 Grade B Carbon Steel Elbow
Used to change the direction of fluid flow. Available in 45°, 90°, and 180° configurations with long and short radius options.
A234 WPB Carbon Steel Equal / Unequal Tee
Designed for branch connections where the flow is divided or combined. Equal tees maintain the same outlet size, while unequal tees reduce branch dimensions.
ASTM A53 Gr B CS Concentric / Eccentric Reducer
Reducers are used when transitioning between different pipe diameters. Concentric reducers maintain center alignment while eccentric reducers prevent air accumulation.
CS A234 WPB Seamless Return Bends
Used where smooth directional changes are required and pressure loss must be minimized.
ASTM A53 Gr B Seamless Pipe Fittings
Manufactured from seamless construction for improved pressure handling and uniform wall thickness.
A53 ERW Carbon Steel Fittings
Produced using electric resistance welding processes and preferred for cost-effective industrial applications.
ASTM A105 Forged Fittings
Suitable for high-pressure applications and available as socket weld and threaded configurations.
ASTM A105 NPT Threaded Fittings
Threaded fittings allow easy installation and maintenance without welding requirements.


ASTM A53 Grade B Carbon Steel Fittings Specifications
| Specification | Details |
| Product Name | ASTM A53 Grade B Carbon Steel Fittings |
| Material Grade | ASTM A53 Grade B |
| Equivalent Fitting Standard | ASTM A234 WPB Fittings |
| Forged Material Standard | ASTM A105 Forged Fittings |
| Dimensions Standard | ASME B16.9 Carbon Steel Fittings |
| Forged Dimensions | ASME B16.11 Forged Fittings |
| Fitting Types | Elbow, Tee, Reducer, Return Bend, Coupling, Cap |
| Manufacturing Types | Seamless, Welded, ERW, Forged |
| Thread Type | ASTM A105 NPT Threaded Fittings |
| Size Range | ½” to 48” |
| Pressure Class | SCH 10 to SCH XXS |
Chemical Composition of ASTM A53 Grade B Fittings
| Element | Percentage |
| Carbon | Max 0.30 |
| Manganese | Max 1.20 |
| Phosphorus | Max 0.05 |
| Sulfur | Max 0.045 |
| Copper | Max 0.40 |
| Nickel | Max 0.40 |
| Chromium | Max 0.40 |
| Molybdenum | Max 0.15 |
Mechanical Properties of ASTM A53 Grade B Carbon Steel Fittings
| Property | Value |
| Tensile Strength | 415 MPa Minimum |
| Yield Strength | 240 MPa Minimum |
| Elongation | 20% Minimum |
These mechanical properties make A53 ERW Carbon Steel Fittings and seamless fittings suitable for demanding industrial service conditions.
ASTM A53 Gr B Fittings Dimensions / Weight Chart
Common Size Range
| Description | Range |
| Butt Weld Fittings | 1/2″ NB to 48″ NB |
| Forged Fittings | 1/8″ NB to 4″ NB |
| Wall Thickness | SCH 10 to SCH XXS |
| Pressure Class | 2000#, 3000#, 6000#, 9000# |
Available Schedules
- SCH 10
- SCH 20
- SCH 40
- SCH 60
- SCH 80
- SCH 120
- SCH 160
- XXS
Custom dimensions and project-specific requirements are available upon request.
ASTM A234 WPB Fittings vs ASTM A105 Forged Fittings
Many buyers compare ASTM A234 WPB Fittings and ASTM A105 Forged Fittings before purchasing.
| Parameter | ASTM A234 WPB | ASTM A105 |
| Product Type | Buttweld Fittings | Forged Fittings |
| Standard | ASME B16.9 | ASME B16.11 |
| Application | Large Bore Systems | High Pressure Small Bore |
| Installation | Welding | Threaded / Socket Weld |
| Pressure Capability | Medium to High | High |
Applications of ASTM A53 Grade B Carbon Steel Fittings
These fittings are widely used across industrial sectors due to their versatility and dependable performance.
Industries Served:
- Oil and Gas Processing
- Petrochemical Plants
- Chemical Industries
- Power Generation Facilities
- Water Transmission Systems
- HVAC Installations
- Construction Projects
- Marine and Offshore Applications
- Refineries and Industrial Pipelines
Related Carbon Steel Fittings Grades
Why Choose Us for ASTM A53 Grade B Carbon Steel Fittings?
We focus on supplying industrial piping components that meet international quality expectations and project delivery timelines.
What customers value:
- Wide stock availability
- Competitive pricing
- Consistent product quality
- Technical assistance
- Custom quantity support
- Fast dispatch capability
- Export-ready documentation
- Global supply experience
Whether you require standard elbows or complete project quantities of carbon steel fitting solutions, we support procurement with practical technical guidance. Request a quote today for ASTM A53 Grade B Carbon Steel Fittings, technical specifications, dimensions, weight charts, pricing, and delivery availability.
Global Reach
ASC LLP boasts a robust global presence, committed to delivering unparalleled service and quality to clients around the world. Our dedication to prompt delivery and exceptional customer care sets us apart in the industry. Major corporations across the USA, Europe, Asia, and other regions place their trust in our high-quality ASTM A53 Grade B Carbon Steel Fittings. This widespread trust underscores our reputation for reliability and excellence. By consistently meeting and exceeding the expectations of our international clientele, we continue to solidify our position as a leader in the global steel market.

Countries We Export To
UNITED STATES, EUROPE, UK, UAE, SAUDI ARABIA, OMAN, KUWAIT, JORDAN, QATAR, INDONESIA, MALAYSIA, BRAZIL, SPAIN, ITALY, FRANCE, GERMANY, BAHRAIN, SRI LANKA, AZERBAIJAN, AUSTRALIA, AUSTRIA, PHILIPPINES, TURKEY, RUSSIA, IRAN, IRAQ, CANADA, KOREA, JAPAN, YEMEN, FINLAND, ZIMBABWE, HUNGARY, PORTUGAL, VIETNAM, MOROCCO, THAILAND, SOUTH AFRICA, MEXICO, SINGAPORE, GREECE, KUWAIT, POLAND, NEW ZEALAND, SWEDEN, SWITZERLAND, BELGIUM, BHUTAN, BANGLADESH, TAIWAN, ROMANIA, CAMBODIA, KAZAKHSTAN, AFGHANISTAN.

