ASTM/ASME A53/SA53 Seamless and Welded Standard Steel Pipe

Domestically produced welded and seamless steel pipe for general processing applications.

Our Steel Tube Products ASTM/ASME A53/SA53 seamless and welded steel pipe is a general, all-purpose pipe used in generator plants, refineries, compressor stations, natural gas transmission, and steam conduction. It is acceptable for welding, flanging, and bending.

Our steel is locally sourced, developed and produced which means our customers are assured of the highest quality standards and a local, concerned customer service presence invested in the success of your project. Our Steel has control over every step of the pipe manufacturing process, from melt to final product.

A53 Comparative Specifications

ASTM Specification A53 covers seamless and welded, black and hot-dipped galvanized nominal (average) wall pipe for coiling, bending, flanging and other special purposes and is suitable for welding.

MECHANICAL PROPERTIES – TENSILE REQUIREMENTS

CHEMICAL REQUIREMENTS FOR A53

· Testing Requirements for seamless and welded API 53 steel pipe

· Hydrostatic Testing test pressures for plain and threaded and coupled pipe are specified. Hydrostatic pressure shall be maintained for not less than 5 seconds for all sizes of seamless and ERW pipe.

· Mechanical Tests:

§ Tensile Test: Two transverse tests required on the ERW for NPS 8 and larger, one across the weld and one opposite the weld.

§ Flattening Test: On ERW for NPS 2 and larger, STD and XS wall (not required for XXS pipe)

§ Bending Test (cold): For NPS 2 and under, XS wall and under; for NPS 1-1/4 and under, XXS wall

· Number of Tests: Seamless and Electric Resistance Weld (ERW) – bending, flattening, tensile on one length of pipe from each lot of 500 lengths, or less, of each pipe size.

· Permissible Variations for A53 steel pipe

· Wall thickness: The minimum wall thickness at any point shall not be more than 12.5% under the nominal wall thickness specified.

· Weights per foot are plus or minus 10%

· Outside diameter: Outside diameter at any point shall not vary from standard specified more than:

· Lengths of A53 steel pipe
Our Steel Tube Products A53 seamless and welded steel pipe is produced in random lengths 16’ – 22’ or 32’ – 44’, in multiple lengths, and in specific cut lengths.

· Marking Requirements
Rolled, die-stamped, ink-printed, or stenciled (manufacturer’s option).

· Manufacturer’s name, brand, or trademark

· Size and wall

· Steel grade

· ASTM A53

Our Steel Certifications

Our Steel Tube Products electric-welded and seamless pipe facilities meet the internationally recognized quality system requirements of ISO9001 and API Q1 and our seamless facilities hold PED certifications.

For pipe sizes and grades not found in the section above, please contact us with your inquiry.

Test Before Delivery

We will control the quality from part of material steel pipe, each pipe produced will be have it is own identify label, quality will check the chemical component and physical property and then provide material test certificate. Size dimension will be checked and show pictures to customer to guarantee all goods will be meet requirement.

Application

Carbon steel pipe and tube are used in high-pressure conditions. They are highly resistant to shock and vibration, making it ideal to transport fluids. Carbon steel pipes are widely used in a number of industries, such as construction material, buidlings, bridges, transporting water and sewage, oil and gas industries, boiler and condenser tubes, high-pressure applications, and chemical processing.

- Construction material / bridges

- Transporting water and sewage

- Oil and gas industries

- Boiler and condenser tubes

- High-pressure applications

- Chemical processing

Packaging And Transportation

1) Packaging: 3 layers of packing. Inside is craft paper, Middle is water plastic film and outside GI steel sheet to be covered by steel strips with lock, with inner coil sleeve or as customers' requirements.

2) Shipping: We have long-term cooperation with many experienced shipping companies and will find the most suitable mode of transportation for you.

3) Trade terms: FOB/CIF/CFR

4) Shipping port: Qingdao/Tianjin/Shanghai

5) Shipment: A: Length: ≤6m, loaded in 20GP Container. B: Length: ≤12m, loaded in 40GP Container.

Remark: Size of 20GP Container (inside :5898*2352*2393mm); Size of 40GP Container (inside:12032*2352*2393mm); Size of 40HQ Container (inside:12032*2352*2698mm).

6) Delivery time: Normal size: 7-15days send from warehouse directly. Special size:15-30days custom made for you.

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