ASTM A53 Carbon Steel Pipe
ASTM A53 carbon steel pipe for mechanical, structural, and pressure applications. Available in Type S (seamless) and Type E (ERW), Grades A & B, black or galvanized finish.
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Description
Product Description
ASTM A53 carbon steel pipe is a standard specification developed by ASTM International, widely used for low-pressure plumbing, mechanical systems, and general structural purposes. It covers seamless (Type S) and electric-resistance-welded (ERW – Type E) steel pipes in Grade A and Grade B.
A53 pipes are commonly used in water lines, fire protection systems, structural supports, HVAC, and oil & gas pipelines. We provide both black and hot-dip galvanized surface finishes, plain or threaded ends.
Product Standards
| Specification | ASTM A53 |
|---|---|
| Type | Type E (ERW), Type S (Seamless) |
| Grade | A, B |
| Form | Round |
| Ends | Plain, Beveled, or Threaded with Coupling |
| Finish | Black, Galvanized, Oiled |
A53 Grade A vs Grade B Comparison
| Property | A53 Grade A | A53 Grade B |
|---|---|---|
| Tensile Strength | ≥ 330 MPa | ≥ 415 MPa |
| Yield Strength | ≥ 205 MPa | ≥ 240 MPa |
| Applications | Light pressure, low stress | Higher pressure, structural use |
| Availability | Seamless & ERW | Seamless & ERW |
Available Dimensions
| Nominal Size (NPS) | OD (mm) | Wall Thickness (mm) (SCH 40) |
|---|---|---|
| 1/2″ | 21.3 | 2.77 |
| 1″ | 33.4 | 3.38 |
| 2″ | 60.3 | 3.91 |
| 4″ | 114.3 | 6.02 |
| 6″ | 168.3 | 7.11 |
| 12″ | 323.8 | 9.53 |
Length: 5.8m, 6m, 11.8m, 12m, or custom
Wall Thickness: SCH 10, 20, 40, 80, XXS
Applications of ASTM A53 Pipe
Water and gas lines
Fire sprinkler systems
HVAC piping and exhaust
Steel structures and supports
Low-pressure steam systems
Mechanical engineering components
Fencing and scaffolding
Advantages of A53 Carbon Steel Pipe
Cost-effective for low- to mid-pressure systems
Available in galvanized or black finish
Wide range of sizes and schedules
Threaded ends available for fast installation
Complies with ASTM, ASME, and ISO standards
Surface Options
| Finish | Use Case |
|---|---|
| Black | General structural and mechanical use |
| Galvanized | Corrosion protection for outdoor/wet areas |
| Oil Coated | Short-term rust prevention |
FAQ – A53 Carbon Steel Pipe
Q1: What is the main difference between A53 and A106 pipes?
A: A53 is used for general mechanical and structural applications, while A106 is designed for high-temperature service.
Q2: Can A53 pipes be used for pressure piping?
A: Yes, Grade B is suitable for moderate pressure systems. For high-pressure or high-temp, A106 is preferred.
Q3: Is galvanization available?
A: Yes, we offer hot-dip galvanized A53 pipes upon request.
Q4: What type of welding is used for Type E?
A: Type E A53 pipes are made using Electric Resistance Welding (ERW).
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