Analysis on Issues in GB/T 228.1-2010 Based on Data of Tensile Verification Test by 21 Laboratories

By analyzing the tensile verification test data of specimens made of uniform and no aging steel with 5 methods by 21 laboratories, a series of clear conclusions on tensile test were deduced. And according to the obtained conclusions, some issues in GB/T 228.1-2010 were revealed. Finally some suggestions to revise GB/T 228.1-2010 were submitted clearly.