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Stainless Steel Tube Pipe in stock

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Polished Stainless Steel Pipe
Jiangsu Sheye Metal is a manufacturer specialized in manufacturing polished stainless steel pipes. Polished stainless steel tube includes mechanically polished cleaning tube and bright annealing cleaning tube. The tubes need to be mechanical polished. Mechanical polishing can be divided into three steps: Coarse Grinding, Fine Grinding, QC of external surface(Visual exam of inner pipe, appearance inspection, roughness, roundness, outside diameter thickness). Then degreasing is necessary. Degreasing also includes three steps, namely degreasing, passivation, RO water rinse. After another inspection, all tubes can be packed and ready for shipment. We can polish a wide range of stainless steel tubes in diameter 4.0mm to 1219mm. And the wall thickness ranges from 0.5mm to 100mm. For metal, we are serious.
Specification of Polished Stainless Steel Pipe
Size OD: 4.0 ~ 1219mm; WT: 0.5 ~ 100mm; Length: 6m, 12m, Max.18m
Process Seamless, Welded
Surface Polishing(180#, 220#, 240#, 320#, 400#, 600#, 800#)
Theoretical Weight(kg/m) Weight/meter = (OD-WT)*WT*0.02507 Both OD and WT in mm.
OD is the specified outside diameter.
WT is the specified wall thickness
Stainless steel pipes shall be pickled free of scale. When bright annealing is used, pickling is not necessary.
Main Grades and Standards of Polished Stainless Steel Pipe
304, 304L, 316, 316L ASTM A312, ASTM A270, DIN 11850, JIS G3447, G3448, EN10312
Tolerances in Wall Thickness (ASTM A312) of Polished Stainless Steel Pipe
NPS Designator Tolerance, % from Nominal
Over Under
1/8 to 2-1/2 incl., all t/D ratios20.012.5
3 to 18 inch., t/D up to 5% incl.22.512.5
3 to 18 inch., t/D>5%15.012.5
20 and larger, welded, all t/D ratios17.512.5
20 and larger, seamless, t/D up to 5% incl.22.512.5
20 and larger, seamless, t/D>5%15.012.5
t = Nominal Wall Thickness;
D = Ordered Outside Diameter.
Tolerances in Outside Diameter (ASTM A312) of Polished Stainless Steel Pipe
NPS Designator Tolerances in Outside Diameter
Over Under
In. mm In. mm
1/8 to 1-1/2, incl.1/64 (0.015)0.41/32 (0.031)0.8
Over 1-1/2 to 4, incl.1/32 (0.031)0.81/32 (0.031)0.8
Over 4 to 8, incl.1/16 (0.062)1.61/32 (0.031)0.8
Over 8 to 18, incl.3/32 (0.093)2.41/32 (0.031)0.8
Over 18 to 26, incl.1/8 (0.125)3.21/32 (0.031)0.8
Over 26 to 34, incl.5/32 (0.156)4.01/32 (0.031)0.8
Over 34 to 48, incl.3/16 (0.187)4.81/32 (0.031)0.8
Tolerances in Straightness (ASTM A312) of Polished Stainless Steel Pipe
Specified OD, in. Specified Wall Thickness, in. Maximum Curvature in any 3ft, in. Maximum Curvature i Total Length, in.
Up to 5.0 incl.Over 3% OD to 0.5, incl.0.0300.010 x length, ft
Over 5.0 to 8.0, incl.Over 4% OD to 0.75, incl.0.0450.015 x length, ft
Over 8.0 to 12.75, incl.Over 4% OD to 1.0, incl.0.0600.020 x length, ft
Packing Information of Polished Stainless Steel Pipe
Polished stainless steel pipes from Sheye Metal are packed according to the customer’s requirement. To avoid any damage which might be caused during international transportation, we provide some optional packaging methods, including woven bags, plywood cases, and wooden boxes.
If you are going to buy high quality polished stainless steel pipe in stock, please feel free to contact Sheye Metal, which is one of the well-known manufacturers and suppliers of good polished stainless steel pipe.Stainless Steel Tube Pipe in stock

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