![]() ![]() ![]() A234 = This specification covers wrought carbon steel and alloy steel fittings of seamless and welded construction.A312 = Standard specification for seamless, straight-seam welded, and cold worked welded austenitic stainless steel pipe intended for high-temperature and general corrosive service.A333 = This specification covers wall seamless and welded carbon and alloy steel pipe intended for use at low temperatures.A335 = This specification covers seamless ferritic alloy-steel pipe for high-temperature service.A106 = This specification covers carbon steel pipe for high-temperature service.Fatigue Resistance – is ability of material to withstand cyclic load for a given number of cycles before it fails.įrequently Used ASTM Grades for Various Piping Materials Material.Creep resistance – ability to resist any kind of distortion when under a load over an extended period.Toughness – ability of a material to absorb energy before fracture.Hardness – is ability of a material to resist plastic deformation.% Elongation – Percent elongation is a measure of ductility.Elasticity – is the ability of a material to resume its normal shape after the load is removed just like rubber.Yield Strength – that is the load at which plastic deformation or you can say permanent deformation start.Ultimate Tensile Strength – that is the capacity of a material to withstand when subjected to tension.Preference is always given to the material which does not require any special requirement during welding and manufacturing. Weldability and Manufacturability of material also play a vital role in selection.Availability – whether the material is locally available or import is required.Piping material selection mainly depends on process conditions such as S = ultimate stress of pipe material (psi) Piping Materials P = internal service pressure of pipe (psig) The schedule number is roughly calculated as: Schedule = 1000 x (P/S) where P is the internal service pressure of the pipe (psig) and S is the ultimate tensile strength of the pipe material (psi). The schedule number of a pipe therefore defines the internal diameter, as the OD is fixed by the NPS number. As the schedule number increases, the wall thickness of the pipe increases. A pipe schedule is a dimensionless number and is calculated based on the design formula for wall thickness, given the design pressure and allowable stress.Įxamples of schedule numbers are as follows: 5, 5S, 10, 20, 30, 40, 50, 60, 80, 100, 120, 140, 160, STD, XS, and XXS-with the most common being schedules 40 and 80. This is a critical parameter as it is directly related to the strength of the pipe and the suitability for specific applications. Steel pipe schedules are a way to describe the wall thickness of the pipe. The reason for this is so that the same structural supports can be used for all piping of a specific NPS number regardless of the wall thickness. The internal diameter will vary depending on the wall thickness of the metal. However, all pipes of a specific NPS number have the same external or outer diameter (OD). The origin of the NPS numbers for smaller pipes (< NPS 12) is different to the origin for larger diameter pipes. Pipe size is quoted as a “Nominal Pipe Size” or NPS. or Sch., for example – “2-inch diameter pipe, Schedule 40”). Specific pipe is identified by pipe diameter and another non-dimensional number for wall thickness referred to as the Schedule (Sched. “ Nominal” refers to pipe in non-specific terms and identifies the diameter of the hole with a non-dimensional number (for example – 2-inch nominal steel pipe” consists of many varieties of steel pipe with the only criterion being a 2.375-inch (60.3 mm) outside diameter). Mild Steel Pipes Dimensions – IS 1239, IS 3589, IS 4923.Stainless Steel Pipe Dimensions, ANSI B36.19.Carbon Steel Seamless Pipe Dimensions, ANSI B36.10.Stainless Steel 317L Seamless Pipes Price List.Stainless Steel 310/310S Seamless Pipes Price List.Stainless Steel 316/316L Seamless Pipes Price List.Stainless Steel 321/321H Seamless Pipes Price List. ![]() Stainless Steel 304L Seamless Pipes Price List.Stainless Steel 304 Seamless Pipes Price List.Carbon Steel (CS) Pipes Price List – Jindal, ISMT, China.Pipes are available in a variety of sizes, from 1/8″ outside diameter to 48.”Īll measurements listed are in inches unless otherwise noted. The following chart lists available dimensions for seamless & welded pipes offered by Penn Stainless Products. ![]()
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