碳素钢管下屈服强度数据

碳素钢管的屈服强度是指在拉伸试验中，钢管开始发生塑性变形并产生显著的塑性应变时所承受的最大应力。屈服强度是一个重要的材料力学性能参数，用于描述材料的抗拉性能和可塑性。统计公司内部质检部门对不同型号碳素钢管的下屈服强度检测数据，分析该数据与产品标准值之间的差别，得到评级指数，通过评级指数对该型号的碳素钢管进行质量评级，以确保产品的质量。1.数据统计：汇总公司质检部门提供的各型号碳素钢管下屈服强度测量值，明确碳素钢管下屈服强度标准值。2.数据处理：通过每种型号碳素钢管取样测量值，计算得到平均下屈服强度值；再通过（平均下屈服强度值-下屈服强度标准值）/下屈服强度标准值，计算得到该型号碳素钢管的评级指数，最后通过评级指数得到该型号碳素钢管的评级。其中，评级A为评级指数≥0.3，评级B为0.3＞评级指数≥0.15，评级C为0.15＞评级指数≥0，评级D为0＞评级指数。3.数据应用：公司可以借助每种型号的碳素钢管下屈服强度的评级，直观了解该批次产品的下屈服强度质量情况，以保证产品质量稳定。

The yield strength of carbon steel pipes refers to the maximum stress sustained by the pipe when it begins to undergo plastic deformation and generates significant plastic strain during a tensile test. Yield strength is a critical mechanical property parameter of materials, used to characterize the tensile performance and plasticity of the material. This dataset statistically analyzes the lower yield strength test data of various carbon steel pipe models collected from the company's internal quality inspection department, compares the data with the product standard values to derive a rating index, and uses this index to conduct quality grading for each carbon steel pipe model to ensure product quality.
1. Data Statistics: Collect the lower yield strength measurement values of each carbon steel pipe model provided by the company's quality inspection department, and confirm the standard lower yield strength values for carbon steel pipes.
2. Data Processing: Calculate the average lower yield strength value based on the sampled measurement values for each carbon steel pipe model. Then, derive the rating index for the model using the formula: (average lower yield strength value - standard lower yield strength value) / standard lower yield strength value. Finally, assign a quality grade to the carbon steel pipe model based on the rating index, with the grading criteria as follows: Grade A for rating index ≥ 0.3, Grade B for 0.3 > rating index ≥ 0.15, Grade C for 0.15 > rating index ≥ 0, and Grade D for rating index < 0.
3. Data Application: The company can intuitively grasp the quality status of the lower yield strength of each batch of products through the grading results of the carbon steel pipe models, thereby ensuring stable product quality.

搜集汇总

数据集介绍

特点

该数据集记录了绍兴佳立管业有限公司的碳素钢管下屈服强度数据，包含产品型号、测量值、评级指数等信息，用于质量评级和产品稳定性分析。数据规模为205条，每季度更新一次。