The Cr-Ni austenitic stainless steel 201 pipe refers to a stainless steel pipe made from grade 201, which is an austenitic stainless steel alloy containing chromium (Cr) and nickel (Ni) as its primary alloying elements.Grade 201 Stainless Steel is an austenitic chromium-nickel-manganese stainless steel which was developed to conserve nickel. Type 201 is a lower cost alternative to conventional Cr-Ni stainless steels such as 301 and 304.Nickel is replaced by additions of manganese and nitrogen.
Compared to higher grade stainless steels, the is well-known for its good corrosion resistance, formability, and low cost. Typically containing around 16-18% chromium and 3.5-5.5% nickel, this composition helps to improve its corrosion resistance and mechanical properties. The austenitic structure of the 201 steel makes it highly resistant to general corrosion, while the addition of nickel helps improve its toughness and ductility, making it easier to form and weld. The low cost of also makes it a popular choice for various industrial applications, such as cookware, automotive trim, and decorative applications. Despite being a more affordable option, the impressive properties of Cr-Ni Austenitic 201 pipes make them a reliable and durable choice for a wide range of applications.
Cr-Ni austenitic stainless steel 201 pipe can be produced using various manufacturing methods, including seamless, welded, or welded and drawn processes. It is commonly used in a wide range of applications such as construction, automotive, kitchenware, and decorative purposes.
Cr-Ni Austenitic Stainless Steel 201 Pipe Specification
|
Commodity |
Cr-Ni Austenitic Stainless Steel 201 Pipe |
|
Grade |
Austenitic: 201,304/L/H/N, 316/L/H/N/Ti, 321/H, 309/H, 310S, 347/H, 317/L, 904L |
|
Standard |
ASTM A213, A312, ASTM A269,ASTM A778, ASTM A789, DIN 17456,DIN 17457,DIN 17459, JIS G3459, JIS G3463, GOS T9941,EN 10216, BS3605, |
|
Technique |
Welded, Seamless, ERW |
|
Type |
Square Tube, Rectangular Tube, Hollow sections |
|
Size |
Thickness: 0.1mm-50mm, or as your requirements |
|
Length |
5.8m,6m or as required |
|
Packing |
In bundles, Nylon bags, wooden cases or as required |
201 Grade Stainless Pipe Size Chart
201SS Chemical Composition
Grade 201 is a type of austenitic stainless steel that contains high amounts of manganese, silicon, and nitrogen.The presence of these elements makes sus 201 an excellent choice for manufacturing seamless pipes.
SA312 Grade 201 Mechanical Properties
SS 201 Seamless Pipe Tolerance
| NPS | ASTM A312 TP201 OD Tolerance | |||
| + | – | |||
| inch | mm | inch | mm | |
| 1/8~1 1 /2 > 1 1 /2~4 > 4~8 > 8~18 > 18~26 > 26~34 > 34~48 |
1/64(0.015) 1/32(0.031) 1/16(0.062) 3/32(0.093) 1/8(0.125) 5/32(0.156) 3/16(0.187) |
0.4 0.8 1.6 2.4 3.2 4.0 4.8 |
1/32(0.031) 1/32(0.031) 1/32(0.031) 1/32(0.031) 1/32(0.031) 1/32(0.031) 1/32(0.031) |
0.8 0.8 0.8 0.8 0.8 0.8 0.8 |
A312 Grade 201 Pipe Wall Thickness Tolerance
| 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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