GB/T 5319-2002 in English

《GB/T 5319-2002烧结金属材料（不包括硬质合金） 横向断裂强度的测定》由TC243（全国有色金属标准化技术委员会）归口，TC243SC4（全国有色金属标准化技术委员会粉末冶金分会）执行，主管部门为中国有色金属工业协会。
本标准规定了用矩形试样测定烧结或烧结后处理的金属材料横向断裂强度的方法。本标准适用于整个截面硬度均匀，塑性极小（两支点间的永久变形约小于0.5mm）的烧结金属材料。本标准也适用于一批金属粉末的烧结强度与参考粉末的烧结强度或参考强度间的比较试验。该方法不适用于硬质合金。

Scope

This standard specifies the method for determining the transverse rupture strength of sintered or post-sintered metal materials with rectangular specimens. This standard applies to sintered metal materials with uniform hardness across the entire cross-section and minimal plasticity (permanent deformation between two fulcrums is less than 0.5 ram). This standard is also applicable to the comparison test between the sintering strength of a batch of metal powder and the sintering strength of reference powder or reference strength. This method is not suitable for cemented carbide. NOTE: Permanent deformation can be accurately measured by the change in length of the bottom surface of the fractured specimen. It is also possible to draw a horizontal straight line on the side of the sample, and measure the deviation of the straight line with an optical instrument such as a microscope or an optical ratio meter.