针对这款8字型圆孔产品，其特点在于无尖角设计，但材料厚度为4.0mm，且采用硬度较高的不锈钢材质，因此对模具的抗崩裂性能提出了较高要求。鉴于DC53模具钢（碳含量1.0%）的高碳特性易导致脆性增大，从而增加崩裂风险，更适合采用抗崩裂性能更强的模具钢材 ...

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