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Detailed Product Description
This guide covers standard specification for seamless, straight-seam welded, and cold worked welded austenitic stainless steel pipe intended for high-temperature and general corrosive service. Several grades of steel shall conform to the required chemical composition for carbon, manganese, phosphorus, sulfur, silicon, chromium, nickel, molybdenum, titanium, columbium, tantalum, nitrogen, vanadium, copper, cerium, boron, aluminum, and others. All pipes shall be furnished in the heat-treated condition in accordance with the required heat treating temperature and cooling/testing requirements. Tensile properties of the material shall conform to the prescribed tensile strength and yield strength. The steel pipe shall undergo mechanical tests such as transverse or longitudinal tension test and flattening test. Grain size determination and weld decay tests shall be performed. Each pipe shall also be subjected to the nondestructive electric test or the hydrostatic test.
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USE:
A213 : Seamless Ferritic and Austenitic Alloy-Steel Boiler,Superheater,and Heat-exchanger tubes
A269 : Seamless and Welded Austenitic Stainless Steel Tubing for General Service
A312 : Seamless,Welded and Heavily Cold Worked Austenitic Stainless Steel Pipes
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Weight Count:(Just for 304)
Weight(Kg/M)=(D-S)*S*0.02490
D:Outside Diameter
S:Wall-Thickness
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304 Stainless Steel Pipes Chemical Requirements
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C max
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Mn max
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P max
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S max
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Si
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Cr
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Ni
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Mo
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N
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304
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0.08
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2.00
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0.045
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0.030
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1.00
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18.0-20.0
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8.0-11.0
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...
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...
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304L
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0.035
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2.00
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0.045
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0.030
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1.00
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18.0-20.0
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8.0-11.0
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...
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...
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304H
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0.04-0.10
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2.00
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0.045
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0.030
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1.00
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18.0-20.0
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8.0-11.0
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...
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...
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304N
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0.08
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2.00
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0.045
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0.030
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1.00
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18.0-20.0
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8.0-11.0
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...
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0.10-0.16
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304LN
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0.035
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2.00
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0.045
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0.030
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1.00
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18.0-20.0
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8.0-11.0
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...
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0.10-0.16
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304 Stainless Steel Pipe Mechanical Test
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Tensile(Mpa)
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Yeild(Mpa)
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Elongation(%)
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Hardness
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304
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515
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205
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35
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90HRB
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304L
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485
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170
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35
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90HRB
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304H
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515
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205
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35
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90HRB
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304N
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550
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240
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35
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90HRB
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304LN
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515
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205
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35
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90HRB
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SS Tubing Delivery Condition :
As different requirements,It including bright annealing,pickling,etc.
Packing:
1.Standard Packing
2.Woodbox Packing
Other Test:
1.Hydrostatic or Nondestructive Electric Test
2.Marking
3.Grain Size,etc
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