本发明公开一种整卷无损钛及钛合金卷带性能预判的方法，对应待测卷带的种类和牌号，搜集试样，按常规做出硬度与抗拉强度的线性关系；将待测卷带的去头，在切除头部的卷带横向两边部分别测试卷带的硬度，在相应纵向间距的卷带横向两边部，分别测试卷带的硬度，去尾，在切除尾部的卷带横向两边部分别测试卷带的硬度，将所得硬度值对照线性关系计算出各位置的抗拉强度，再对照GB/T3621‑2007的要求，确定待测卷带的抗拉性能是否整卷合格或部分合格。本发明提供的方法准确、快速、简便、低成本，能严格控制产品质量，对不同牌号、不同长度，甚至长度达上千米的钛及钛合金卷带均能进行整卷性能判定。 

The invention discloses a method for predicting the performance of whole-roll non-destructive titanium and titanium alloy coiled tapes. In correspondence with the types and the marks of the to-be-tested coiled tapes, samples are collected, and a linear relation between the hardness and the tensile strength is made according to the routine; heads of the to-be-tested coiled tapes are removed, the hardness of the coiled tapes is tested on the two transverse sides of the coiled tapes without the heads, the hardness of the coiled tapes is tested on the two transverse sides of the coiled tapes withthe corresponding longitudinal distance, the tails are removed, the hardness of the coiled tapes is tested on the two transverse sides of the coiled tapes without the tails, the hardness number contrasts the linear relationship to calculate the tensile strength at all positions, and then by contrasting the requirements of GB/T3621-2007, either the tensile performance of the whole-roll coiled tapesto be tested is completely qualified or partially qualified is determined. The method provided by the invention is accurate, rapid, simple and low in cost, the product quality can be strictly controlled, and whole-roll performance judgment of the titanium and titanium alloy coiled tapes with different brands, with different lengths and even with the length up to several kilometers can be carriedout.