Project Description

Specifications:ASTM A53 Grade B Seamless Steel Tube

Dimensions: ASTM, ASME and API

Type: Seamless / ERW / Welded / Fabricated

Size:Out Diameter:1/2″-24″

Wall Thickness: 1.65-20mm

Thickness: 3-12mm

Schedules: SCH 40, SCH 80, SCH 160, SCH XS, SCH XXS, All Schedules

Length : 3-12m, or according to customer’s requirement

End : Plain End, Beveled End, Treaded


ASTM A53 Grade B Seamless Steel Tube Application:

For mechanical and pressure use, and also for transporting steam, water, gas and etc.

ASTM A53 Grade B Seamless Steel Tube Mill test certificates will be issued according to EN10204/3.1B .


ASTM A53 Grade B Seamless Steel Tube (also referred to as ASME SA53 pipe) is intended for mechanical and pressure applications and is also acceptable for ordinary uses in steam, water, gas, and air lines. It is suitable for welding, and suitable for forming operations involving coiling, bending, and flanging, subject to certain qualifications.

Materials and Manufacture

The steel for both seamless and welded pipe shall be made by one or more of the following processes: open-hearth, electric furnace, or basic-oxygen. The weld seam of electric-resistance welded pipe in Grade B shall be heat treated after welding.

Applications: heat exchangers, condensers, heat transfer equipment and similar pipes.

ASTM A53 Grade B Seamless Steel Tube and welded steel pipe with nominal wall thickness. The surface condition is usually black and hot-dipped galvanized. ASTM A 53 is produced mainly for pressure and mechanical applications, and is also used for transport of steam, water, gas line pipes.