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235Mpa 370Mpa 420Mpa 300Mpa
≥145MPa ≥215MPa ≥235MPa ≥255MPa
335Mpa 400Mpa 235Mpa 245Mpa
HRB500 HRB400 HRB335 HPB235
Q235 HRB235 HPB335 HRB500E
0.12%~0.30% 0.14%~0.22% 0.24%~0.58% 0.30%~0.65%
HPB300 HPB235 HRB335 HRB400
HRB335 HRB400 HPB235 HPB300
热轧带肋钢筋 细晶粒热轧光圆钢筋 细晶粒热轧带肋钢筋 细晶粒冷轧光圆钢筋
Q235 HRB235 HPB235 RRB235