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We can offer various deformed steel bar for construction usage as follow: 1. Steel Grade: HRB335(20MnSi), HRB400(20MnSiV, 20MnSiNb20Mnti), HRB500. 2. Application: Widely used in the construction of building, bridge and roads. 3. Chemical composition % Grade C Si Mn P S Ceq HRB 335 0.25 0.80 1.60 0.045 0.045 0.52 HRB 400 0.25 0.80 1.60 0.045 0.045 0.54 HRB 500 0.25 0.80 1.60 0.045 0.045 0.55 4. Specification: Diameter: 8-32mm Length: 6-12m