ASTM A53 / ASME SA53 Grade B LSAW Carbon Steel Welded Pipes NACE for Industrial Pipeline
ASTM A53 GR. B refers to carbon steel pipes that comply with ASTM A53/A53M standards and are suitable for seamless and welded applications. There are three types:
Type F: furnace butt welded steel pipes (continuous furnace welding process, usually galvanized)
Type E: Resistance welded steel pipe (ERW process)
Type S: Seamless steel pipe (hot-rolled or cold drawn).
It is mainly used as a low-pressure pipeline for fluid transportation of water, oil, steam, gas, etc., or as a structural support for buildings, mechanical components, etc. Generally applicable from -29 ° C to+343 ° C, but it is recommended to use ASTM A106 Gr. B at high temperatures.
ASTM A53 / ASME SA53 Carbon Steel Pipe Chemical Composition:
GRA.
| ASTM A53 / ASME SA53 CHEMICAL COMPOSITION %
|
| C | MN | P | S | CU | NI | CH | MO | VA |
| Type S (seamless pipe) |
| Gr.A | 0.25 | 0.95 | 0.05 | 0.045 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 |
| Gr.B | 0.30 | 1.20 | 0.05 | 0.045 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 |
| Type E (electric-resistance-welded) |
| Gr.A | 0.25 | 0.95 | 0.05 | 0.045 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 |
| Gr.B | 0.30 | 1.20 | 0.05 | 0.045 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 |
| Type F (furnace-welded pipe) |
| Gr.A | 0.30 | 1.20 | 0.05 | 0.045 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 |
ASTM A53 Carbon Steel Pipe Manufacturing Process and Types
Seamless steel pipe (Type S):
- Process: Hot rolling or cold drawing forming, no welds, suitable for high-pressure scenarios
- Size range: outer diameter 1/8 "~24", wall thickness SCH 10~XXS
Welded steel pipe (Type E/F):
- Type E (ERW): High frequency resistance welding, with strength close to seamless pipe
- Type F (furnace welding): Continuous furnace welding, low cost, but only used for low-voltage galvanized pipes
- Surface treatment: Galvanized to improve corrosion resistance (commonly seen in Type F)
ASTM A53 Carbon Steel Welded Pipe Mechanical Properties
| GRADE | Tensile Strength, min ksi [MPa] | Yield Strength, min ksi [MPa] |
|
|
| Gr.A | 48 [330] | 30 [205] |
| Gr.B | 60 [415] | 35 [240] |
ASTM A53 Carbon Steel Pipe Selection Precautions
- Pressure and temperature: Seamless pipes have a higher pressure bearing capacity than welded pipes, and materials such as A106 or A333 need to be used at high temperatures (>343 ° C) or low temperatures (<-29 ° C).
- Corrosion environment: Galvanized pipes (Type F) are suitable for humid environments, but it should be noted that the welding area is prone to corrosion. If they need to be used in severely corrosive environments, it is recommended to use stainless steel (such as ASTM A312) or add coating protection.
- Cost trade-off: Welded pipes (Type E/F) are priced lower than seamless pipes and have lower costs, making them suitable for use in low-pressure and non critical systems.
Comparison between ASTM A53 GR. B and other materials
| Material | Characteristic comparison |
| ASTM A106 Gr.B | seamless pipe, suitable for high temperatures (≤ 450 ° C), with better creep resistance. |
| API 5L Gr.B | specially designed for oil and gas transportation, requiring higher toughness and non-destructive testing. |
| ASTM A36 | structural steel, without pressure requirements, cannot replace A53 for fluid pipelines. |
ASTM A53/ASME SA53 Gr.B Carbon Steel Welded Pipe Application Areas:
- Architecture and Infrastructure: Structural Support, Scaffolding, Water Supply and Drainage Systems, and Other Architecture and Infrastructure Systems.
- Energy industry: Energy industry systems such as fire protection pipelines, low-pressure oil and gas transmission pipelines, etc.
- Industrial equipment: low-pressure steam systems, compressed air pipeline systems, and other industrial equipment.
- Agriculture: Greenhouse supports, irrigation systems, and other agricultural equipment
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ASTM A53 / ASME SA53 Grade B LSAW Carbon Steel Welded Pipes NACE For Industrial Pipeline Images
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