Different standard in steel pipe-part 1

As a professional pipe supplier,we supply steel pipes in different standards,let’s see the different between them.All these requirements can be met by selecting a pipe made to an appropriate standard e.g. ASTM or API Standard.

ASTM A-53

1. Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless Electric fusion welded steel pipe for High pressure service at moderate temperatures.
2. One of the two most used steel pipe material for welding, bending and coiling.
3. Wall thicknesses are mainly Sch 40 (STD) and Sch 80 (XS).
4. They are either made seamless or seamed using ERW, in Grades A and B. Grade B has higher tensile strength.
5. Used mainly for utility services. For process piping, A106 is used.
6. NPS 1⁄8 to NPS 26 [DN 6 to DN 650].
7. Temperature Range : -15 to 415 deg.C.
8. There are three types and 5 Grades as shown below.
9. 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 Currently an outdated specification and has been replaced by ASTM A106 specification for seamless carbon steel pipe.
10. 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.
11. Type F : Furnace Welded Pipe : With Grade A : 0.3 % Carbon. Not intended for Flanging.

ASTM A53 Grade B seamless steel pipes

ASTM A-106

1. This is a seamless carbon steel pipe for high-temperature service in NPS 1⁄8 to NPS 48 inclusive, with nominal (average) wall thickness as given in ANSI B 36.10.
2. They are mainly used for Process piping while A53 Used for Utility services.
3. Temperature Range : -15 to 415 deg.C.
4. Pipe ordered under this specification shall be suitable for bending, flanging, and similar forming operations, and for welding.
5. Available grades are Grade A, B and C, with carbon content 0.25, 0.3 and 0.35 respectively. Hardness increases and weldability decreases. Bending ability also decreases from A to C.
6. Grade A rather than Grade B or Grade C is the preferred grade for close coiling or cold bending.
7. Wall thicknesses are mainly Sch 40 (STD) and Sch 80 (XS). They are either made seamless or seamed using ERW.

ASTM A106 Gr B seamless steel pipes

ASTM A-120451889

This is the most widely stocked pip. It covers welded and seamless steel pipe for normal use in steam, water, and gas (including air) service.  This pipe is not intended for bending, coiling or high temperature service. It is not specified for hydrocarbon process lines.

ASTM A-672

Its an Electric fusion welded steel pipe for High pressure service at moderate temperatures.  Design temperature Range : -29 deg.C to 425 deg. C .

This is the part 1 of the pipe standards,and i’ll cover several more in the next article.