ASTM B725 welded pipe is a pipe made of welded nickel (UNS N02200) and low carbon nickel (UNS N02201) and nickel copper alloy (UNS N04400), mainly used for general corrosion service and mechanical applications.
This standard specification applies to pipes that are welded and annealed or welded and stress relieved, covering a wide range of outer diameters and nominal wall thicknesses, ranging from 5s to 30 inches.
The main application areas of ASTM B725 welded pipes include pipe fittings, joints, bearings, etc. used in acid-resistant equipment, as well as extensive applications on marine ship equipment. These pipes are widely used in chemical, petrochemical, flue gas desulfurization, pulp and paper, environmental protection and other industrial fields due to their excellent corrosion resistance and good mechanical properties. .
In terms of manufacturing process, ASTM B725 welded pipes undergo treatment processes such as welding, annealing or stress relief to ensure that their performance meets the standard requirements. The specific manufacturing process includes steps such as solution treatment and aging treatment to ensure that the strength, corrosion resistance and mechanical properties of the pipe are in the best state.
ASTM B725 Welded Pipes Specifications
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| Size | : | 6.00 mm OD up to 914.4 mm OD |
| Thickness | : | 0.3mm – 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS |
| Length | : | Within 13500mm |
| Type | : | Welded Pipes |
| Grades | : | UNS N02200, UNS N02201, UNS N04400 |
