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Stainless Steel Tube and Fittings - Atlas Steels

Stainless SteelTube and FittingsPhotography courtesy of Outokumpu, Arcelor and New Zealand Tube 3/8/10 7:36 AM Page 53/8/10 7:38:46 3/8/10 7:36 AM Page 133/8/10 7:39:23 July 20101S5 Stainless Steel tube and fittingsStainless Steel tube is typically specified by OD (outside diameter), WT (wall thickness), grade, condition and surface finish. It is resistant to many forms of corrosion, has hygienic sterile properties, highquality aesthetic appeal and exceptional is manufactured in round, square and rectangular sections in a variety of wallthicknesses and usually by the processes of longitudinal welding, hot and cold drawing(seamless) or spiral welding.

2B mill finish, standard polished is a finely grit polished finish and there is a finer buffed finish giving close to a mirror appearance. Finishes are selected to suit application and aesthetic appeal. Stainless steel tube can be joined by welding, which facilitates rigidity in construction,

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Transcription of Stainless Steel Tube and Fittings - Atlas Steels

1 Stainless SteelTube and FittingsPhotography courtesy of Outokumpu, Arcelor and New Zealand Tube 3/8/10 7:36 AM Page 53/8/10 7:38:46 3/8/10 7:36 AM Page 133/8/10 7:39:23 July 20101S5 Stainless Steel tube and fittingsStainless Steel tube is typically specified by OD (outside diameter), WT (wall thickness), grade, condition and surface finish. It is resistant to many forms of corrosion, has hygienic sterile properties, highquality aesthetic appeal and exceptional is manufactured in round, square and rectangular sections in a variety of wallthicknesses and usually by the processes of longitudinal welding, hot and cold drawing(seamless) or spiral welding.

2 Finishes or appearance range from unpolished to highly polished. Unpolished has a 2B mill finish, standard polished is a finely grit polished finish and there is a finer buffedfinish giving close to a mirror appearance. Finishes are selected to suit application andaesthetic Steel tube can be joined by welding, which facilitates rigidity in construction, or by the use of mechanical Fittings which enables dismantling for hygienic is usually annealed if extensive forming and bending is required, such as forbending or expanding. The tubular products system incorporates a comprehensive rangeof Stainless Steel Fittings in the form of elbows, tees, reducers and flanges in varioussizes, wall thickness, grades and finishes to suit tube dimensions and (AW) tubeDecorative & Structural Tube This tubing is produced direct off the continuous tubewelding mill, using cold rolled Stainless Steel strip made to ASTM standards, with tubeproduced to commercial limits of straightness in standard or specific customer tube has a higher yield point than annealed tube and is generally used for structuraland decorative applications in mildly corrosive conditions.

3 It is not suitable forapplications requiring significant flaring, expanding or bending, nor for pressureapplications. AW tube is also available with rebate slots for support of architectural specification: ASTM Quality Tube As-welded food quality tube is stocked by Atlas Steels . This tube at thepoint of manufacture goes through a process where the internal weld bead is rolled. The resultis an improved internal finish along the weld, reducing the chance of a crevice where liquid orfood product may be trapped. This assists with clean in place (CIP) environment food andbeverage process lines or other applications such as the pharmaceutical industry.

4 Furtherassurance of reliability of food tube comes from the 100% weld NDT mandatory for specification: AS annealed (AWA) tubeThis tube is produced by the same process as AW tube but is annealed to relieve stressesand improve ductility. Bright annealing is carried out in a controlled-atmosphere furnace,so that no oxide or scale is formed on the both increases the corrosion resistance and softens the tube which allowssevere manipulation such as bending, expanding and specification:ASTM A269 Atlas Steels PRODUCT REFERENCE MANUALSECTION 5: Stainless Steel TUBE AND FITTINGSA tlas_ProductGuide_Section_5 3/8/10 7:32 AM Page 13/8/10 7:33.

5 54 July 20102S5 Cold worked annealed (CWA) tubeThis tube is typically destined for heat exchanger applications and is produced in a similar way to AWA product except that the internal bead is rolled flush with the inside tube surface prior to annealing. Because of the critical end use this tubeundergoes extensive testing as part of the manufacturing specification:ASTM drawn seamless (CDS) tubeThis tube is produced by drawing from hollow billets. It is usually supplied in theannealed and pickled condition and used where service conditions involve high pressureand corrosive conditions and where good surface finish and close tolerances arerequired, heat exchanger and condenser tubing, instrumentation tubing and somerefinery specification:ASTM A269 for general service.

6 ASTM A213M for heatexchanger service and A268 for Ferritic and Martensitic tubes . Spiral welded tubeThis tube is produced by the helical forming and automatic welding of a continuous stripof Stainless applications include water and pulp in paper mills , product and effluent lines inchemical processing, water lines for brewing, dust fume extraction, furnace and boilerflues, stormwater down-pipes in high-rise applications and ventilation ducts andcondensation lines for airconditioning. Manufacturing specification: generally to ASTM A778, except for :Austenitic: 304, 304L, 316, 316L, : Steels PRODUCT REFERENCE MANUALSECTION 5: Stainless Steel TUBE AND FITTINGSA tlas_ProductGuide_Section_5 3/8/10 7:32 AM Page 23/8/10 7:33:56 July 2010Pr oductrange,dimensions,theoreticalweights andmethodof manufacturingOD of tubemminchesWeight(kg/m)Wallthickness(mm )FDFDFDFDFD304316304316304316304/304L316 /316L2205As welded(A W)As welded annealed (AWA)Colddrawnseamless(CDS)Coldworkedann ealed(CW A) Steel round tube Specifications refer p1-23S5 Atlas Steels PRODUCT REFERENCE MANUALSECTION 5.

7 Stainless Steel TUBE AND FITTINGSColdWorkedAnnealed(CWA)Tube in 304/304L,316/316L,2205is availableon indentonly .TubefinishesTube is stockedin thr ee dif fer ent finishes:unpolished,320 grit polishedand 600 grit (FD)Markedas FD indicatesan additionalstockrangeof tubesuitablefor use in a foodpr tubeis weldbeadremovedinter nally .Atlas_ProductGuide_Section_5 3/8/10 7:32 AM Page 33/8/10 7:33:57 July 2010Pr oductrange,dimensions,theoreticalweights andmethodof manufacturingOD of tubemminchesWeight(kg/m)Wallthickness(mm )FDFDFDFDFDFDFDFDFD304316304316304316304 /304L316/316L2205As welded(A W)As welded annealed (AWA)Colddrawnseamless(CDS)Coldworkedann ealed(CW A) Steel round tube Specifications refer p1-2 Atlas Steels PRODUCT REFERENCE MANUALSECTION 5: Stainless Steel TUBE AND FITTINGS4S5 ColdWorkedAnnealed(CWA)Tube in 304/304L,316/316L,2205is availableon indentonly.

8 TubefinishesTube is stockedin thr ee dif fer ent finishes:unpolished,320 grit polishedand 600 grit (FD)Markedas FD indicatesan additionalstockrangeof tubesuitablefor use in a foodpr tubeis weldbeadremovedinter nally .Atlas_ProductGuide_Section_5 3/8/10 7:32 AM Page 43/8/10 7:33:57 July 2010Pr oductrange,dimensions,theoreticalweights andmethodof manufacturingOD of tubemminchesWeight(kg/m)Wallthickness(mm )FDFDFDFDFD304316304316304316304/304L316 /316L2205As welded(A W)As welded annealed (AWA) Colddrawnseamless(CDS)Coldworkedannealed (CW A) Steel round tube Specifications refer p1-2 Atlas Steels PRODUCT REFERENCE MANUALSECTION 5: Stainless Steel TUBE AND FITTINGS5S5 ColdWorkedAnnealed(CWA)Tube in 304/304L,316/316L,2205is availableon indentonly.

9 TubefinishesTube is stockedin thr ee dif fer ent finishes:unpolished,320 grit polishedand 600 grit (FD)Markedas FD indicatesan additionalstockrangeof tubesuitablefor use in a foodpr tubeis weldbeadremovedinter nally .Atlas_ProductGuide_Section_5 3/8/10 7:32 AM Page 53/8/10 7:33:58 July oductrange,dimensions,theoreticalweights andmethodof manufacturingOD of tubemminchesWeight(kg/m)Wallthickness(mm )FDFD304316304316304316304/304L316/316L2 205As welded(A W)As welded annealed (AWA) Colddrawnseamless(CDS)Coldworkedannealed (CW A) Steel round tube Specifications refer p1-2 Atlas Steels PRODUCT REFERENCE MANUALSECTION 5: Stainless Steel TUBE AND FITTINGS6S5 ColdWorkedAnnealed(CWA)Tube in 304/304L,316/316L,2205is availableon indentonly.

10 TubefinishesTube is stockedin thr ee dif fer ent finishes:unpolished,320 grit polishedand 600 grit (FD)Markedas FD indicatesan additionalstockrangeof tubesuitablefor use in a foodpr tubeis weldbeadremovedinter nally .Atlas_ProductGuide_Section_5 3/8/10 7:32 AM Page 63/8/10 7:33:58 July 2010 Stockrange,dimensions,theoreticalweights andmethodof manufacturingOD of tubemminchesWeight(kg/m)Wallthickness(mm )FDFDFDFD304316304316304316304/304L316/3 16L2205As welded(A W)As welded annealed (AWA) Colddrawnseamless(CDS)Coldworkedannealed (CW A) is stockedin thr ee dif fer ent finishes:unpolished,320 grit polishedand 600 grit (highlypolished).


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