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ASTM A53 Grade B Seamless Steel Pipe for Construction, Oil & Gas and Mechanical Applications
| ASTM A53 Seamless Steel Pipe Details | |
| Item | Description |
| Product Name | ASTM A53 Grade B Seamless Steel Pipe |
| Standard | ASTM A53 / ASME SA53 |
| Material Grade | Grade A, Grade B (Grade B Most Common) |
| Pipe Type | Seamless Steel Pipe |
| Outside Diameter | 21.3mm – 762mm (1/2" – 30") |
| Wall Thickness | SCH 10, SCH 20, SCH 40, SCH 80, SCH 160, STD, XS, XXS |
| Length | 5.8m, 6m, 11.8m, 12m or Customized |
| End Type | Plain End (PE), Beveled End (BE), Threaded End |
| Surface Treatment | Black Painted, Varnished, Oiled, Galvanized, Anti-Corrosion Coating |
| Manufacturing Process | Hot Rolled Seamless / Cold Drawn Seamless |
| Inspection & Testing | Hydrostatic Test, NDT, Mechanical Test, Chemical Analysis |
| Certificate | MTC EN10204 3.1, ISO 9001, SGS, BV, TUV Available |
| Packing | Bundles with Steel Strips, Plastic Caps, Waterproof Packaging |
| Supply Capacity | Large Stock & Fast Delivery Available |
| Chemical Composition | |||||||||
| Grade | Max,% | ||||||||
| Carbon | Manganese | Phosphorus | Sulfur | Copper | Nickel | Chromium | Molybdenum | Vanadium | |
| Type S(seamless pipe) | |||||||||
| Grade B | 0.3 | 1.2 | 0.05 | 0.045 | 0.4 | 0.4 | 0.4 | 0.15 | 0.08 |
| Mechanical Properties | |
| Strength | Grade B |
| Tensile strength,min,psi [MPa] | 60000 [415] |
| Yield strength,min,psi[MPa] | 35000 [240] |
| Elongation in 2 in.or 50 mm | e=625000 [1940]A⁰²7U9 |
| ASTM A53 Seamless Pipe Size Table | |||
| NPS (Inch) | Outside Diameter (OD, mm) | SCH 40 Wall Thickness (mm) | SCH 80 Wall Thickness (mm) |
| 1/2" | 21.3 | 2.77 | 3.73 |
| 3/4" | 26.7 | 2.87 | 3.91 |
| 1" | 33.4 | 3.38 | 4.55 |
| 1-1/4" | 42.2 | 3.56 | 4.85 |
| 1-1/2" | 48.3 | 3.68 | 5.08 |
| 2" | 60.3 | 3.91 | 5.54 |
| 2-1/2" | 73 | 5.16 | 7.01 |
| 3" | 88.9 | 5.49 | 7.62 |
| 4" | 114.3 | 6.02 | 8.56 |
| 5" | 141.3 | 6.55 | 9.53 |
| 6" | 168.3 | 7.11 | 10.97 |
| 8" | 219.1 | 8.18 | 12.7 |
| 10" | 273 | 9.27 | 15.09 |
| 12" | 323.9 | 10.31 | 17.48 |
| 14" | 355.6 | 11.13 | 19.05 |
| 16" | 406.4 | 12.7 | 21.44 |
| 18" | 457.2 | 14.27 | 23.83 |
| 20" | 508 | 15.09 | 26.19 |
| 24" | 609.6 | 17.48 | 30.96 |
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Coating Types & Usage
Black Painted: Basic anti-rust for storage; construction & structural works
Bare Black Steel: Raw mill surface; machining, welding fabrication
Oiled: Thin rust-proof oil; general export & industrial use
Varnished: Anti-corrosion & neat look; infrastructure
Hot-Dip Galvanized: Long-lasting zinc anti-corrosion; water supply, outdoor facilities
3PE: Triple-layer polyethylene; underground oil & gas pipelines
FBE: High-adhesion epoxy; oil, gas & water pipelines
Coal Tar Epoxy: Heavy anti-corrosion; coastal & marine pipelines
Custom Coating: Made-to-order for energy & industrial projects
Coating Benefits
Better anti-corrosion performance
Longer service life
Safe storage & transit
Adaptable to harsh & offshore conditions
Royal Steel Group supplies all ASTM A53 Grade B seamless pipe coatings for global construction, oil & gas, water and mechanical infrastructure projects.
| No. | Application Field | Description | Usage Scenarios |
| 1 | Oil & Gas Transmission | For conveying oil, natural gas and petroleum fluid media | Oil & gas pipeline delivery systems |
| 2 | Water Supply & Distribution | Safe water conveying with stable pressure resistance | Municipal waterworks, water treatment, farm irrigation |
| 3 | Structural Construction | High structural strength & load-bearing performance | Building frames, steel columns, structural support parts |
| 4 | Mechanical Engineering | Easy cutting, welding and mechanical processing | Machine manufacturing, custom mechanical components |
| 5 | Industrial Piping Systems | Resist conventional industrial medium corrosion | Chemical plants, processing factory fluid pipelines |
| 6 | Power Generation Projects | Adapt to high-temperature and conventional pipeline working conditions | Thermal power plants, public energy utility infrastructure |
| 7 | Fire Protection Systems | Comply with fire pipeline pressure & safety standards | Building fire sprinkler & firefighting pipe networks |
| 8 | Infrastructure Development | Durable for outdoor civil engineering use | Bridges, traffic works, municipal public utilities |
| 9 | HVAC Systems | Stable for circulating heating & cooling water | Building heating, ventilation, air conditioning pipelines |
| 10 | Marine & Offshore Projects | Adapt to coastal humid and salt fog working environment | Ports, docks, coastal and offshore engineering projects |
| Royal Steel Group Advantage | |
| Professional Steel Pipe Astm A53 Supplier | Custom Processing Services |
| Over 10 years of export experience supplying ASTM A53 seamless steel pipes for construction, oil & gas, water transmission, and industrial projects worldwide. | Support for cutting, threading, beveling, galvanizing, and anti-corrosion coatings such as 3PE and FBE. |
| Strict Quality Assurance | Complete Export Documentation |
| Every pipe undergoes comprehensive inspection, including chemical composition analysis, mechanical testing, dimensional verification, and hydrostatic testing. | Provide MTC EN 10204 3.1, SGS/BV inspection reports, packing lists, commercial invoices, and other project-required documents. |
| Wide Range of Specifications | Global Project Experience |
| Available in various diameters, wall thicknesses, schedules, and lengths, with customized solutions to meet specific project requirements. | Successfully supplied steel pipes for infrastructure, industrial, energy, construction, and utility projects across the Americas, Southeast Asia, the Middle East, and Africa. |
| Reliable Supply Chain | Professional Logistics Support |
| Strong manufacturing resources and stable inventory ensure consistent product quality, competitive pricing, and dependable delivery schedules. | Flexible container, bulk vessel, and break bulk shipping solutions with secure export packaging and on-time delivery. |
1) Branch Office - Spanish-speaking support, customs clearance assistance, etc.
2) Over 5,000 tons of stock in stock, with a wide variety of sizes
3) Inspected by authoritative organizations such as CCIC, SGS, BV, and TUV, with standard seaworthy packaging
Royal Steel Group offers special ASTM A53 Seamless Steel Pipes packaging & delivery service to protect your goods and provide you with convenience and reliable supply service worldwide.
Packaging:
The pipes are bundled by high strength steel straps to facilitate handling and loading.
Piping ends are protected with plastic caps.
For long distance ocean transportation waterproof wrapping and anti-rust protection can be provided.
Each band is labeled with pipe size, grade, quantity, heat number, and customer requirements.
Tailor made packing can be provided for container and bulk vessel shipments.
Delivery:
Various types of shipping are available container shipping, bulk vessel, and break bulk transport.
Standard loading makes sure no deformation and surface damages.
Full set of export documents including Mill Test Certificate (MTC), inspection reports, commercial invoice, packing list, shipment documents.
The Royal Steel Group's efficient logistics allowing quick and secure delivery to the construction sites, oil & gas, industrial and infrastructure project sites globally.
1. Are you an owner factory of ASTM A53 Seamless Steel Pipe or a trader?
The Royal Steel Group, a trustworthy steel pipe manufacturer and supplier in the industry, offer you a wide range of industrial piping solutions including the ASTm A53 Seamless Steel Pipe, carbon steel pipe for the global project.
2. Which grades of ASTM A53 pipe do you offer?
We provide seamless steel pipes of Grade A and Grade B of ASTM A53, with Grade B is more popular for stronger requirements in industrial, mechanical, construction and pipeline uses.
3. What are the size and technical standards of ASTM A53 pipes?
We have different OD, wall thickness, schedules (SCH 10, SCH 40, SCH 80, and more) and length for from which to choose, and customized options are available.
4. Could you please inform me about the quality certificate?
We offer full quality documentation such as Mill test certificate (MTC), analysis of the chemical composition, mechanical test reports, hydrostatic test reports, and third party inspection certificates.
5. Can you customize process or coaing of ASTM A53 seamless pipe?
Affirmative. Customized services can be provided, such as cutting, threading, beveling and so on, also galvanizing, painting and anti-corrosion coating treatment can be done based on projects requirements.
6. How you package and ship ASTM A53 steel pipe?
The pipes are bundled with steel straps, capped and covered with waterproof material and are shipped falling under the terms of container, bulk vessel or break bulk with full export documentation.
7. Why should I choose Royal Steel Group as the supplier of my ASTM A53 pipes?
Our service provides:
Stable steel pipe supply capacity
Factory direct competitive price
Quality Control Rigorous
Customized processing service
Professional Export Support
Global Delivery Service
We have a proven track record of reliable delivery at competitive rates around the world.
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