Product introduction
ASTM A53 Grade B Seamless is our most popular product under this specification and A53 pipe is commonly dual certified to A106 B Seamless pipe.
ASTM A53 Grade B is the material under the American steel pipe standard, API 5L Gr.B is also the American standard material, A53 GR.B ERW refers to the electric resistance welded steel pipe of A53 GR.B; API 5L GR.B Welded refers to the material Welded steel pipe of API 5L GR.B.
Chemical Properties %
| / |
Grade |
C,
max |
Mn,
max |
P,
max |
S,
max |
Cu*,
max |
Ni*,
max |
Cr*,
max |
Mo*,
max |
V*,
max |
| Type S (Seamless) |
A |
0.25 |
0.95 |
0.05 |
0.05 |
0.4 |
0.4 |
0.4 |
0.15 |
0.08 |
| B |
0.3 |
1.2 |
0.05 |
0.05 |
0.4 |
0.4 |
0.4 |
0.15 |
0.08 |
| Type E (Electric-resistance Welded) |
A |
0.25 |
0.95 |
0.05 |
0.05 |
0.4 |
0.4 |
0.4 |
0.15 |
0.08 |
| B |
0.3 |
1.2 |
0.05 |
0.05 |
0.4 |
0.4 |
0.4 |
0.15 |
0.08 |
| Type F (Furnace-welded) |
A |
0.3 |
1.2 |
0.05 |
0.05 |
0.4 |
0.4 |
0.4 |
0.15 |
0.08 |
*The total composition for these five elements shall not exceed 1.00%
Mechanical Properties
| |
Grade A |
Grade B |
| Tensile Strength, min., psi, (MPa) |
48,000 (330) |
60,000 (415) |
| Yield Strength, min., psi, (MPa) |
30,000 (205) |
35,000 (240) |
(Note: This is summarized information from ASME Specification A53. Please refer to the specific Standard or Specification or contact us for more details.)
ASTM A53 seamless steel pipe is an American standard brand. A53-F corresponds to China's Q235 material, A53-A corresponds to China's No. 10 material, and A53-B corresponds to China's No. 20 material.
Production process
Seamless steel pipe manufacturing process is divided into hot-rolled and cold seamless pipe.
1. Production process of hot-rolled seamless steel pipe: tube billet → heating → perforation → three-roller/cross-rolling & continuous rolling → de-pipe → sizing → cooling → straightening → hydraulic test → marking → seamless steel pipe with leverage effect detected.
2. Production process of cold drawn seamless steel tubes: tube blank → heating → perforation → heading → annealing → pickling → oiling → multiple cold drawing → blank tube → heat treatment → straightening → hydraulic test → marking → storage.
Applications
1. Construction: the pipeline underneath, the groundwater, and the hot water transportation.
2. Mechanical processing, bearing sleeves, processing machinery parts, etc.
3. Electrical: Gas delivery, Hydroelectric power fluid pipeline
4. Anti-static tubes for wind power plants, etc.
