Technical Overview of the JIS G3141 Standard
The JIS G3141 standard defines the regulatory requirements for cold-rolled steel sheets, coils, and strips manufactured from low-carbon steel. The scope of this specification includes sheet products, narrow strip steel (less than 500 mm in width), and cut-to-length blanks from coils. EV Group China products compliant with this standard possess precision dimensional accuracy and stable mechanical characteristics, which are critical for stamping and deep drawing applications.
Mechanical Properties and Plasticity Characteristics of Steels
To ensure process stability during cold forming, steel grades under JIS G3141 are classified based on their drawability and tensile strength. The regulatory values for various thickness ranges are presented below.
| Steel Grade | Tensile Strength, N/mm2, min. | Minimum Elongation, % | ||||||
|---|---|---|---|---|---|---|---|---|
| Thickness (t), mm | ||||||||
| – | ≤0.25 | 0.25 < t ≤ 0.40 | 0.40 < t ≤ 0.60 | 0.60 < t ≤ 1.0 | 1.0 < t ≤ 1.6 | 1.6 < t ≤ 2.5 | > 2.5 | |
| SPCC | 270 | 32 | 34 | 36 | 37 | 38 | 39 | 40 |
| SPCD | 270 | 34 | 36 | 38 | 39 | 40 | 41 | 42 |
| SPCE | 270 | 36 | 38 | 40 | 41 | 42 | 43 | 44 |
EV Group China engineers ensure strict quality control at every stage of production, guaranteeing that the supplied products meet the specified plasticity and strength parameters required by modern industry.