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ASTM A53 Pipe, A53 Grade B ERW, A53B ERW Pipe, Grade B A53 Welded Pipe, CS ERW Steel Pipe Manufacturer & Supplier
ASTM A53 GR.B ERW Steel Pipe:
ASTM A53 is a Carbon steel pipe standard established by the American Society for Testing and Materials (ASTM). Grade B indicates a material grade with higher tensile strength (≥415 MPa) and yield strength (≥240 MPa). ERW (Electric Resistance Welded) refers to steel pipe manufactured using the electric resistance welding process, as opposed to seamless pipe.
ASTM A53 GR.B ERW Pipe Size:
ASTM A53 Grade B ERW pipe sizes conform to ASTM, ASME, and API standards. Pipe diameters range from ½ inch to 24 inches. ASTM A53 ERW Steel Pipe covers the following types and grades: Type E—Electric-resistance-welded, Grades A and B. Among them, Grade B is the most commonly used.
Applications of ASTM A53 GR.B ERW pipe:
1. Low-pressure fluid transportation: water, air, steam (non-corrosive media), boilers, hot water transportation, and other pipelines with high groundwater extraction.
2. Building structures: scaffolding, steel frames, towers (requiring anti-corrosion treatment).
3. Machinery manufacturing: machining, bearing assemblies, automobile frames, processing machinery, and other accessories.
4. Oil and gas: Low-pressure gathering and transportation pipelines (interchangeable when meeting API 5L GR.B).
5. Municipal engineering: Drainage and fire protection pipes (ERW galvanized pipe is more durable).
6. Electrical: Gas transmission and hydraulic fluid pipelines.
7. Anti-static pipes for wind power plants.
Chemical Composition of ASTM A53 GR.B ERW Steel Pipe:
| Type |
Carbon
max. % |
Manganese max. % |
Phosphorous max. % |
Sulfur max. % |
Copper max. % |
Nickel max. % |
Chromium max. % |
Molybdenum max. % |
||||||||
|
Grade A |
Grade B |
Grade A |
Grade B |
Grade A |
Grade B |
Grade A |
Grade B |
Grade A |
Grade B |
Grade A |
Grade B |
Grade A |
Grade B |
Grade A |
Grade B |
|
|
Type E (electric-resistance welded) |
0.25 | 0.30 | 0.95 | 1.2 |
0.05 |
0.05 | 0.045 | 0.045 |
0.40 |
0.40 |
0.40 |
0.40 |
0.15 |
0.15 |
0.08 |
0.08 |
Tensile of ASTM A53 GR.B ERW Steel Pipe:
|
Tensile |
Electric-resistance-welded
|
|
|
Grade A |
Grade B |
|
|
Tensile Strength min. psi |
48,000 (≥330 Mpa) |
60,000 (≥415 Mpa) |
|
Yield Strength min. psi |
30,000 (≥205 Mpa) |
35,000 (≥240 Mpa) |
Specification of ASTM A53 GR.B ERW Steel Pipe:
|
Wall Thickness |
Out Diameter |
||||||||||||||||||
|
Inch |
mm |
inch |
mm |
inch |
mm |
inch |
mm |
inch |
mm |
inch |
mm |
inch |
mm |
inch |
mm |
inch |
mm |
inch |
mm |
|
8 5/8 |
219.1 |
10 3/4 |
273.1 |
12 3/4 |
325.0 |
14 |
355.6 |
16 |
406.4 |
18 |
457.7 |
20 |
508.0 |
24 |
610 |
24 4/5 |
630.0 |
||
|
0.157 |
4.0 |
l |
l |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0.197 |
5.0 |
l |
l |
l |
l |
l |
l |
l |
l |
|
|
|
|
|
|
|
|
|
|
|
0.236 |
6.0 |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
|
|
|
|
|
|
|
0.276 |
7.0 |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
|
|
|
|
|
|
0.315 |
8.0 |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
|
|
|
0.354 |
9.0 |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
|
|
|
0.394 |
10.0 |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
|
0.433 |
11.0 |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
|
0.492 |
12.5 |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
|
0.551 |
14.0 |
|
|
|
|
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
|
0.630 |
16.0 |
|
|
|
|
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
|
0.689 |
17.5 |
|
|
|
|
|
|
|
|
l |
l |
l |
l |
l |
l |
l |
l |
l |
l |
|
0.748 |
19.0 |
|
|
|
|
|
|
|
|
|
|
l |
l |
l |
l |
l |
l |
l |
l |
|
0.787 |
20.0 |
|
|
|
|
|
|
|
|
|
|
|
|
l |
l |
l |
l |
l |
l |
ERW Pipe Manufacturing Process:
After the raw steel coil is uncoiled and leveled, it is progressively rolled into a tube using multiple rollers. High-frequency current is used to heat the edges until they are molten, and pressure is applied to achieve seamless welding. The weld seam undergoes in-line annealing for stress relief, and then the outer diameter is calibrated using sizing rollers and straightened to ensure straightness. Finally, the pipe is cut to length and undergoes UT/ET nondestructive testing and hydrostatic testing.
Conclusion:
ASTM A53 Grade B ERW steel pipe is an economical and practical low-pressure carbon steel pipe suitable for construction, municipal engineering, and general industrial applications. Its electric resistance welding process reduces costs, but weld quality must be ensured. When selecting a pipe, consider whether to galvanize or increase the wall thickness based on the pressure, medium, and environment.
Read more: Matters needing Attention When Purchasing Welded Steel Pipes or API 5L ERW Line Pipe Standard & Grade
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