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Q: What is the yield strength and tensile strength range for SPCC?
A: The yield strength is generally 130-270 MPa, and the tensile strength is 270-410 MPa. The specific requirements are subject to the manufacturer's material specifications.
Q: What is the elongation requirement for SPCC?
A: The elongation after fracture (A50) is typically ≥28%, which is sufficient for conventional stamping, bending, and other forming needs.
Q: What are the main chemical components of SPCC?
A: The core elements are C (carbon), Si (silicon), Mn (manganese), P (phosphorus), and S (sulfur). P ≤ 0.045%, S ≤ 0.045% (common grade), Si ≤ 0.10%, and Mn ≤ 0.50%.
Q: What is the typical hardness (HV) range for SPCC?
A: The Vickers hardness in the annealed state is approximately 70-100 HV, which is moderate and easy to process.
Q: Are there differences in the mechanical properties of SPCC from different manufacturers? A: There will be slight differences due to different production processes (such as annealing temperature and cold rolling reduction), but they must all meet the limit requirements of the JIS G 3141 standard.