AISI 201 is a widely used austenitic stainless steel grade for various applications, including the manufacturing of pipes. AISI (American Iron and Steel Institute) is a standard designation for stainless steel grades, and AISI 201 refers to the specific chemical composition and properties of this stainless steel grade.
AISI 201 stainless steel offers a combination of good corrosion resistance, formability, and cost-effectiveness. It contains a higher manganese content compared to other austenitic stainless steel grades, which helps enhance its formability and reduce the risk of work hardening during fabrication. AISI 201 also has lower nickel content compared to other stainless steel grades, making it more affordable.
AISI 201 pipe is a low-cost alternative to traditional stainless steel pipes. It is a type of austenitic stainless steel that is non-magnetic, has high corrosion resistance, and is easy to form and weld.Like other steel pipes, AISI 201 ss pipes can be manufactured using different processes, including hot rolling, cold rolling, or seamless manufacturing methods. The choice of manufacturing process depends on factors such as the specific application, desired dimensions, and production requirements.

AISI 201 SS Pipe Specification
Materials: SS201
Standard: ASTM A249, A213
OD:3-75mm
Thickness:0.5-1.5
Tolerance: OD:+/-0.1mm,thickness:+/-0.02mm.length:+/-5mm
Surface: 180#,240#,320# hairline, 400#,600# mirror polish
Processing Service:Bending, Welding, Decoiling, Punching, Cutting, Moulding
Application: handrail,railing,staircase,weldmesh,screen,door,window,balcony,fence,bench,furniture,ect.


AISI 201 Steel Pipe Size

Wall Thickness Tolerance for Grade 201 Seamless Pipe
| NPS | ASTM A312 TP 201 WT Tolerance, % | |
| + | – | |
| 1/8-2 1 /2 | 20.0 | 12.5 |
| 3~18, t/D≤ 5% | 22.5 | 12.5 |
| 3~18, t/D> 5% | 15.0 | 12.5 |
| ≥ 20, welded | 17.5 | 12.5 |
| ≥ 20, seamless, t/D≤ 5% | 22.5 | 12.5 |
| ≥ 20, seamless, t/D> 5% | 15.0 | 12.5 |
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