ISO 4381:2011规定了多层滑动轴承用基于锡铸造合金的轴承金属的要求。化学成分和材料特性指原始未加工材料，并在代表性样品上测量。由于轴承生产的影响，最终轴承的测试结果可能会有所不同。因此，不打算将这些结果与ISO 4381:2011中给出的数据进行比较。

ISO 4381:2011 specifies requirements for bearing metals based on tin casting alloys for multilayer plain bearings. The chemical composition and material properties refer to the original unprocessed material and are measured on representative samples. Testing results on final bearings can differ due to the influence of bearing production. Therefore, it is not intended that these results be compared with data given in ISO 4381:2011.