ASTM A53 Grade B Sch40 Black Painting 3 Inch ERW Iron Steel Pipe

ASTM A53 Grade B Sch40 Black Painting 3 Inch ERW Iron Steel Pipe

API 5L A53 grade B welded tubes are also line pipe comply with API 5L. There are three main welding types that are ERW, SSAW, LSAW.
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Product Details

Our company will maintain the purpose of progress by science and development, to meet customer needs to develop better Hot Dipped Galvanized Square Steel Tube, Cold Rolled Stainless Steel Coil SS Coilss, Ship Building Angel Bar. Our company constantly standardizes internal management, optimizes export structure and establishes flexible business strategy. We try to thoroughly improve the production and working environment of customers and employees. 'Customer's requirements are our pursuit' is our basic business tenet.

detailed description


API 5L A53 Grade B Welded Steel Pipe

Outer Diameter


Wall Thickness



Grade A, Grade B, X42, X46, X52, X56, X60, X65, X70


Comply with the standard

Pipe End

Plain end, Beveled end




Black painting, As rolled, Mill finished

Heat Treatment

Hot rolled, Normalizing rolled, Quenched, Tempered

product picturesAPI steel pipe11API steel pipe14API steel pipe12API steel pipe15API steel pipe16our advantage

our advantage

quality control

quality control

packing and delivery


mill and equipments


certificate and customers


container loading capacity

container loading capacity


FAQ-How to Prevent Steel Rusting

why choose us

why choose us



more details of product

Pipeline steel pipe material: L245 L360, A53, J55 and N80, X42, X46 and X52, X56, of X60 and X65 and X70. API 5L Grade B welded Pipeline steel pipe specifications from diameter 60-630 x thickness 1.53-40mm.

Packing for API 5L A53 grade B welded pipes

1. by bundles, each bundle weight under 3 tons, for small outer diameter seamless steel pipe, each bundle with 4 - 8 steel strips.

2. after making by bundle, covered with Polyethylene waterproof cloth.

3. make black paints painting on each pipe, then make bundles

The quality control for the API 5L A53 grade B welded pipes are Pressure test, Flaw detection, Eddy current testing, Hydrostatic testing or Ultrasonic examination and also with chemical and physical property inspection.

Our company has accumulated many years of experience in manufacturing ASTM A53 Grade B Sch40 Black Painting 3 Inch ERW Iron Steel Pipe. We are always maintaining close contact with customers to ensure effective industry solutions. We strengthen the incentive and restraint mechanism and further improve the statutory basis and policy environment for operation, providing the foundation and basis for sound operation. With the concept of continuous innovation, excellent quality, preferential price and satisfactory service, we will create a better future with friends from all walks of life.


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