含钒Ⅲ级螺纹钢筋市场前景广阔含钒新Ⅲ级螺纹钢筋（20MnSiV、400Mpa）在生产过程中加入了钒、铌、钛等合金，与普通Ⅱ级螺纹钢筋相比，具有强度高、韧性好、焊接性能和抗震性能良好的优点。

Vanadium containing third grade rebar market prospects of vanadium containing new third grade rebar (20MnSiV, 400Mpa) with vanadium, niobium and titanium alloy in the production process, compared with ordinary grade rebar, with high strength and good toughness, welding performance and good seismic performance.

A、经济：由于强度高，使用新Ⅲ级螺纹钢筋可比Ⅱ级螺纹钢筋节省钢材10-15%，因此可降低建筑工程的建设成本。

A, economy: due to high strength, the use of new grade III rebar rebar can be compared to the second class rebar reinforced steel 10-15%, which can reduce the construction cost of construction.

B、强度高、韧性好：采用微合金化处理，屈服点在400Mpa以上，抗拉强度570Mpa以上，分别比Ⅱ级螺纹钢筋提高20%。

B, high strength, good toughness: micro alloying treatment, yield point above 400Mpa, tensile strength above 570Mpa, respectively, than the second grade rebar increased by 20%.

C、抗震：含钒钢筋具有较高的抗弯度、时效性能，较高的低周疲劳性能，其抗震性能明显优于Ⅱ级螺纹钢筋。

C, seismic: vanadium steel has higher bending strength and aging properties, low cycle fatigue performance is higher, its seismic performance is better than grade II rebar.

D、易焊接：由于碳含量≤0.54%，焊接性能好，适应各种焊接方法，工艺简单方便。

D, easy welding: because the carbon content is less than 0.54%, good welding performance, adapt to a variety of welding methods, the technique is simple and convenient.

E、施工方便：采用新Ⅲ级螺纹钢筋增大了施工间隙，为施工方便及施工质量提供了保证。

E, construction convenience: the use of new grade III rebar reinforced construction gap for construction convenience and construction quality provides a guarantee.

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