What is the core chemical composition range of the SPCC coil?
A: Carbon ≤0.10%, Manganese ≤0.50%, Phosphorus ≤0.040%, Sulfur ≤0.035%, low impurities ensure basic machinability.
What are the yield strength and tensile strength of the SPCC coil?
A: Yield strength 130-230MPa, tensile strength 310-430MPa, stable performance in the annealed state.
What is the elongation requirement for the SPCC coil?
A: For thicknesses of 3-12mm, elongation ≥27%, ensuring basic bending and stamping deformation capabilities.
What is the hardness range of the SPCC coil?
A: Brinell hardness (HB) ≤131, moderate hardness, facilitating subsequent processing.
What is the thickness tolerance achievable for the SPCC coil?
A: Standard tolerance ±0.02-±0.05mm, high precision requirements can be controlled within ±0.015mm.