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3 inch stainless steel pipe

3 inch stainless steel pipe

3 inch stainless steel pipe is 3 stainless steel pipe, the outside diameter is 3 inch, according to ASTM A312 standard, the dimensions as ANSI B36.19, 3 inch is 88.9mm.

3 stainless steel pipe thickness

DN80 x SCH10, the size in mm is OD 88.9mm, Thickness is 3.05mm
DN80 x SCH40, the size in mm is OD 88.9mm, Thickness is 5.49mm
DN80 x SCH STD, the size in mm is OD 88.9mm, Thickness is 5.49mm
DN80 x SCH80, the size in mm is OD 88.9mm, Thickness is 7.62mm
DN80 x SCH160, the size in mm is OD 88.9mm, Thickness is 11.12mm
DN80 x SCH XXS, the size in mm is OD 88.9mm, Thickness is 15.24mm

3 inch stainless steel pipes

3 inch stainless steel pipe material grade

The material grade available for 3 inch stainless steel pipes are TP304, TP304L, TP316L, TP321, TP310S, TP317L

3 inch stainless steel pipe length

Fixed length as standard is 6meters length, 20 feet length.
From our stock, the length is 5-7.5meters available.
If you need it with 6meters fixed length from our stock, we can do cutting service for you.

seamless or welded

There are seamless or welded for 3 inch stainless steel pipes, two different production processes, for seamless, all thickness is acceptable, for welding, only the thickness from sch10 to sch40.

3 inch stainless steel pipe

pipe production process

Cold drawing is the main production process for seamless stainless steel pipe.
1. Hollow pipe
2. Polishing inside and outside of the hollow pipe
3. smooth lubricating
4. Cold drawing
5. Annealing
6. Pickling
7. Fixed the size
8. Straightening
9. Cutting ends
10. Inspection
11. Marking
12. Packing

Remark, from 4 to 6 is a repeat process.

ERW is the main production process for welded

1 stainless steel plates
2 cutting to fix the pipe size( 88.9*3.1416)
3 ERW
4.annealing
5 pickling
6 inspection
7 marking
8 packing
For ERW stainless steel pipe, all lengths are 6 meters.

stainless steel pipe marking on surface

As the requirements of ASTM A312, our marking details is Logo, seamless stainless steel pipe, ASTM A312 TP304 (or other grades),3 inch * SCH10 (or other thickness) 6meters, Heat No. INOKS8888 (as the actual heat no.)

We supply seamless stainless steel pipe, with stock for fast shipment within 10days. The size from 1 inch to 12inch and all stainless steel grades is available.

If you are interested in our products, please let us know, we reply to you within 24 hours.

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