ASTM A53 Grade B Carbon Steel Welded Pipes Large Od Steel Tubing

• Customization: Available
• Application: Cast Iron, Chemical Processing, Construction, Oil and Gas, Water Supply, Building Material
• Pipe Diameter: 1/8"-5"
• Model NO.: ASTM A53 Grade B Carbon Steel Welded Pipes
• Pipe Length: Max 50m
• Surface Finish: Black
• Steel Grade: A53/A90/A370
• Thickness: 1-150mm
• Size: 1/4"-4", Customized
• Material: Carbon Steel
• Shape: Round/Customized
• Process: Hot Rolled/Cold Drawn
• Tolerance: ±5%
• End: Plain End/Bevel End
• Usage: Heat Transfer
• Test: BV, SGS Is Available
• MOQ: 1 Ton
• Processing: Customized
• Used: Factory, Decoration, Food
• Packing: Standard Export Packing
• Delivery Time: 10-30 Working Days
• Transport Package: Woven Bag/Wooden Case
• Specification: SCH 5S-SCH160
• Trademark: EZS
• Origin: China
• Production Capacity: 10000 Ton/Year

Product Description

Product Description

Standard and Material

1. ASTM A53: A widely adopted standard for carbon steel pipes, specifying both seamless (Schedule 5 to 160) and welded (ERW, EFW, SAW) types for low-to-moderate pressure applications.
2. Grade B Characteristics:
   • Carbon Content: 0.25% max (manganese 0.9-1.2%), providing a balance of strength, ductility, and weldability.
   • Tensile Strength: Min. 415 MPa (60 ksi), yield strength: Min. 240 MPa (35 ksi).

Comparison with Other Grades (ASTM A53)

Grade	Carbon Content	Tensile Strength	Typical Use Cases
Grade A	≤0.20%	Min. 330 MPa	Light-duty applications (e.g., scaffolding, non-critical pipes).
Grade B	≤0.25%	Min. 415 MPa	General-purpose piping, higher pressure/load scenarios.
X42 (API 5L)	-	Min. 290 MPa	Oil/gas transmission (higher ductility for pipeline flexibility).

Application:

1. Boiler and heat exchanger: the standard seamless steel pipe is often used in boilers and heat exchangers for heat transfer, with the performance of high temperature and pressure resistance;

2. Chemical industry: In the chemical industry, the standard pipe is widely used to transport chemical media, such as acid, alkali, etc., as the pipeline is required to have good corrosion resistance;

3. Oil and gas transmission: the standard is also commonly used in oil and gas transmission pipelines, as line pipe is required to have good tightness and pressure resistance;

4. Machinery manufacturing: In the field of machinery manufacturing, the standard seamless steel pipe is widely used to manufacture all kinds of mechanical parts, such as bearing casing, hydraulic cylinder pipe, etc.
 

 

Installation and Handling Considerations

1. Welding and Joining:
   • ERW/EFW Pipes: Suitable for fusion welding (SMAW, GTAW) with E70XX electrodes; threaded or flanged connections for low-pressure systems.
   • SAW Pipes: Field welding requires preheating (100-200°C) for thick walls to prevent hydrogen-induced cracking.
2. Corrosion Protection:
   • In corrosive environments (e.g., seawater, acidic soils), use galvanized pipes or apply external coatings (e.g., coal tar enamel).
   • Avoid contact with stainless steel to prevent galvanic corrosion.
3. Thermal Expansion:
   • Install expansion loops or flexible couplings for steam lines to absorb thermal movement (max. temperature ~400°C for Grade B).

 

 

Detailed Photos

 

 

Technical Details

 

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