201 J1, J2, J3, J4 Stainless Steel Coil and Sheets Basic Information
201 Stainless Steel Processing
- Forming: Grade 201 stainless steel can be formed using all commonly employed forming methods, similar to 300 series stainless steels.
- Welding: It can be welded using all conventional welding techniques.
- Hot Working: The hot working temperature range is 1149-1232°C (2100-2250°F).
- Annealing: The annealing temperature is 1010-1093°C (1850-2000°F). The temperature should not exceed 2000°F to avoid scaling, and rapid cooling is required to prevent the crystallization of carbides.
201 Stainless Steel Mechanical Property and Physical Property
| 201 Stainless Steel Mechanical Property | ||||
| Property | Yield Strength, min. (ksi) | Tensile Strength, min. (ksi) | Elongation, min. (%) | Hardness, max. (Rb) |
| 201 | 45 | 95 | 40 | 100 |
201 Stainless Steel Chemical Composition
| Physical Properties of 201 J1 Stainless Steel | ||
| Property | Value | Unit |
| Density | 0.283 | lb/in³ |
| Modulus of Elasticity | 28.6 × 10⁶ | psi |
| Coefficient of Thermal Expansion (68-212°F) | 9.2 × 10⁻⁶ | /°F |
| Thermal Conductivity | 9.4 | Btu/ft·hr·°F |
| Specific Heat | 0.12 | Btu/lb·°F |
| Electrical Resistivity | 27 | Microohm-in |
Differences between 201 J1, J2, J3, J4
- Copper Content: J4 > J1 > J3 > J2
- Carbon Content:J2 > J3 > J1 > J4
- Hardness: J2 > J3 > J1 > J4
- Price (from high to low): J4 > J1 > J3 > J2
J1: (Medium Copper)
J1 has slightly higher carbon content and lower copper content than J4. Its processing performance is slightly lower than J4. It is suitable for general shallow and deep drawing products, such as decorative panels, bathroom products, sinks, and product tubes.
J1 is generally considered equivalent to type 201, which corresponds to:
- ASTM A213
- ASTM A240
- ASTM A249
- ASTM A276
- ASTM A412
- ASTM A666
- QQ S766
- ASME SA412
- ASME SA240
- SAE 30201
- SAE J405 (30201)
J2: (High Hardness)
Due to its high hardness (all above 96°), J2 is a good choice for decorative pipe raw materials. However, it is not recommended to use 201 J2 stainless steel for square pipes or bent pipes because the high degree of bending can easily cause cracking.
J3 (Low Copper)
J3 has lower copper content than J1 and J4, but higher than J2. It contains a small amount of copper and is suitable for pipes and mechanical frames requiring shallow processing, such as shelves, display racks, vehicle frames, and stainless steel furniture. 201 stainless steel J3 material can reduce costs while meeting the deformation requirements of stainless steel product manufacturers.
J4 (High Copper)
J4 is the high-end product of the J series, with the highest copper content and a higher price than J1. It is suitable for products requiring deep drawing and deep pulling. Although the corrosion resistance of 201 J4 is not as good as that of 304 and 316 stainless steel, it still provides satisfactory corrosion resistance in many applications. Particularly in indoor or low-corrosive environments, 201 J4 can offer adequate protection. Most products requiring deep salt and salt spray testing are suitable for use in household, catering, automotive industries, and other fields, making it a cost-effective choice.
Stainless Steel 201 vs 304
- 201 stainless steel: Lower nickel content (around 1%), higher manganese and nitrogen content.
- 304 stainless steel: Higher nickel content (8%-10%), higher chromium content (18%-20%).
- 304 stainless steel has higher nickel and chromium content, thus better corrosion resistance.
304 stainless steel has lower manganese content, resulting in a brighter and whiter surface. 201 stainless steel has a higher manganese content, giving it a darker surface color.
- 201 stainless steel: Lower nickel content (around 1%), higher manganese and nitrogen content.
- 304 stainless steel: Higher nickel content (8%-10%), higher chromium content (18%-20%).
Sanmei's 201 Stainless Steel Coil and Sheet Specification
For Coil
| Type | Width (mm) | Weight (MT) | Thickness (mm) | ||||
| 201 Coil | 1000, 1219, 1240, 1500 or Customized | 3-10 | 0.15-3.0 | ||||
For Sheets
| Type | Width (mm) | Length (mm) | Thickness (mm) | |||||||||
| 201 Sheets | 1000, 1219, 1240, 1500 or Customized | 2000, 2438, 2500, 3000, 3048 | 0.3-3.0 | |||||||||
Basic Surfaces for Stainless Steel Coils and Sheets
The basic finish options for 201, 304, 304L, 316, 316L, and 430, etc. stainless steel coils and sheets include 2B, BA, No. 1, and No. 4 finishes. Please get in touch with our professional sales team for details on other grades and finishes.
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