- Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless Electric fusion welded steel pipe for High pressure service at moderate temperatures.
- One of the two most used steel pipe material for welding, bending and coiling.
- Wall thicknesses are mainly Sch 40 (STD) and Sch 80 (XS).
- They are either made seamless or seamed using ERW, in Grades A and B. Grade B has higher tensile strength.
- Used mainly for utility services. For process piping, A106 is used.
- NPS 1⁄8 to NPS 26 [DN 6 to DN 650].
- Temperature Range : -15 to 415 deg.C.
- There are three types and 5 Grades as shown below.
- Type S : Seamless Pipe with Grade A and B based on Carbon Content. A: 0.25% and Grade B : 0.3 Percent. Use A if bending and Closed Coiling to be done. Currently an outdated specification and has been replaced by ASTM A106 specification for seamless carbon steel pipe.
- Type E : Electric Resistance Welded with Grade A and B based on Carbon Content. A:0.25% and Grade B: 0.3 Percent. Use A if bending and Closed Coiling to be done.
- Type F : Furnace Welded Pipe : With Grade A : 0.3 % Carbon. Not intended for Flanging.
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