ASTM A53 Seamless Carbon Steel Pipe
Features
- Seamless construction without a longitudinal weld seam
- Grade A and Grade B options for different mechanical requirements
- Suitable for mechanical and pressure applications within specified design limits
- Compatible with welding, bending, coiling, and flanging when appropriate procedures are followed
- Black steel or hot dipped galvanized finishes according to application requirements
- Hydrostatic and applicable nondestructive testing to verify conformance with specified requirements
- Plain, threaded, and bevelled end configurations for different piping connections
Specifications
| Parameter | Specification |
|---|---|
| Standard | ASTM A53/A53M, Standard Specification for Pipe, Steel, Black and Hot Dipped, Zinc Coated, Welded and Seamless |
| Type | Type S, seamless |
| Grades | Grade A and Grade B |
| Manufacturing Process | Seamless steel pipe manufactured in accordance with ASTM A53/A53M requirements |
| Outside Diameter | NPS 1/8 to NPS 26, subject to applicable dimensional requirements |
| Wall Thickness | Specified nominal wall thickness according to applicable pipe dimensions and schedules |
| Length | Specified or standard random lengths according to the order requirements |
| Ends | Plain ends, threaded ends, or bevelled ends as specified |
| Surface Finish | Black steel finish or hot dipped galvanized finish where specified |
| Testing | Tensile testing, applicable bend or flattening tests, hydrostatic testing, and nondestructive electric testing according to the standard |
| Typical Use | Steam, water, gas, air lines, mechanical systems, and general pressure piping |
Chemical Composition and Mechanical Properties
| Element | Grade A (%) | Grade B (%) |
|---|---|---|
| Carbon (C) | 0.25 | 0.30 |
| Manganese (Mn) | 0.95 | 1.20 |
| Phosphorus (P) | 0.050 | 0.050 |
| Sulfur (S) | 0.045 | 0.045 |
| Copper (Cu) | 0.40 | 0.40 |
| Nickel (Ni) | 0.40 | 0.40 |
| Chromium (Cr) | 0.40 | 0.40 |
| Molybdenum (Mo) | 0.15 | 0.15 |
| Vanadium (V) | 0.08 | 0.08 |
| Property | Grade A | Grade B |
|---|---|---|
| Minimum Tensile Strength | 330 MPa | 415 MPa |
| Minimum Yield Strength | 205 MPa | 240 MPa |
| Elongation | Determined according to specimen dimensions and applicable standard requirements | Determined according to specimen dimensions and applicable standard requirements |
Size Chart
| Nominal Pipe Size (NPS) | Nominal Diameter (DN) | Outside Diameter (mm) | Schedule 40 Wall Thickness (mm) |
|---|---|---|---|
| 1/2 | 15 | 21.3 | 2.77 |
| 1 | 25 | 33.4 | 3.38 |
| 2 | 50 | 60.3 | 3.91 |
| 3 | 80 | 88.9 | 5.49 |
| 4 | 100 | 114.3 | 6.02 |
| 6 | 150 | 168.3 | 7.11 |
| 8 | 200 | 219.1 | 8.18 |
| 10 | 250 | 273.1 | 9.27 |
| 12 | 300 | 323.9 | 10.31 |
Use Case
- Steam and condensate piping systems
- Water distribution and industrial water lines
- Gas and compressed air piping
- General industrial mechanical piping
- Building services and utility piping
- Industrial equipment and process installations