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目前,冷拉钢筋的优势在增长,因为它具有较大的抗电化腐蚀、抗应力腐蚀和抗氢脆性。虽然生产非常便宜的西格玛(Sigma)钢筋的西德公司,在低合金钢中增加了附加剂,调整了耐腐蚀的差距(例如4SSC6钢筋)。但是西德的混凝土行业仍然采用冶拉钢筋。在有些国家,如美国,热轧钢筋被禁用。这两类钢材共同趋势是加大钢筋直径。
At present, the advantages of cold-drawn steel bars are increasing because of its greater resistance to galvanic corrosion, stress corrosion resistance and resistance to hydrogen embrittlement. Although West Germany, which produces very inexpensive Sigma rebar, has added additives to low-alloy steels, the gap in corrosion resistance has been adjusted (for example, 4SSC6 rebar). However, the steel industry in West Germany still uses smelted steel. In some countries, such as the United States, hot-rolled rebar is banned. The common trend of these two types of steel is to increase the bar diameter.