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新Ⅲ级螺纹钢筋的开发和应用是现代建筑业发展的需要 ,采用钒铁或钒氮合金进行微合金化 ,对于提高钢筋的机械性能 ,具有良好的强化作用
The development and application of the new grade Ⅲ rebar is the need of the modern construction industry. The use of vanadium iron or vanadium-nitrogen alloy for micro-alloying has a good strengthening effect for improving the mechanical properties of the steel bar