宝钢优质碳素结构钢圆钢

评测依据

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• intros：{"brand_intro":"宝钢股份是中国最大、最现代化的钢铁联合企业，全球碳钢棒材领域的领军者。公司拥有世界一流的冶炼、连铸和轧制技术，产品广泛应用于汽车、机械、能源等高端制造领域。宝钢以\"创享改变生活\"为使命，坚持精品战略，其碳钢棒材以纯净度高、组织均匀、尺寸精度卓越著称，是国内众多精密零部件加工企业的首选供应商。","product_intro":"宝钢45#优质碳素结构钢圆钢，采用转炉+LF精炼+VD真空脱气工艺生产，钢质纯净度高，硫、磷等有害元素含量极低。该产品经控轧控冷技术处理，表面光洁无缺陷，尺寸公差符合GB/T 702-2017标准。适用于制造高强度螺栓、齿轮、轴类等机械零件，热处理后综合力学性能优异，淬透性稳定，加工变形小，深受模具制造和汽车零部件行业用户信赖。","key_specs":["材质：45#碳素结构钢","直径：Φ50mm（可定制Φ20-Φ200mm）","执行标准：GB/T 699-2015","抗拉强度：≥600MPa","屈服强度：≥355MPa","表面状态：黑皮/磨光可选"]}
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