International Standard ISO 6506-4:2014(E)
Metallic materials — Brinell hardness test —
Part 4:
Table of hardness values
ISO 6506 consists of the following parts, under the general title Metallic materials —— Brinell hardness test:
ISO 6506-1 Metallic materials —— Brinell hardness test Part 1: Test method
ISO 6506-2 Metallic materials —— Brinell hardness test Part 2: Verification and calibration of testing machines and indenters
ISO 6506-3 Metallic materials —— Brinell hardness test Part 3: Calibration of refernce blocks
ISO 6506-4 Metallic materials —— Brinell hardness test Part 4: Table of hardness values
Contents
Foreword
1 Scope
2 Determination of the Brinell hardness for testing on flat surfaces
1 Scope
This part of ISO 6506 gives a table of the Brinell hardness values for use in tests on flat surfaces.
2 Determination of the Brinell hardness for testing on flat surfaces
See Tables 1 and 2. Where the measured indentation diameter value is not given in the table, a linear
interpolation between the two adjacent values and between the two corresponding hardness values
should be carried out. Each hardness value is quoted to three significant figures, but is calculated from
the nominal force-diameter index rather than from the specified force value, in order to avoid variations
in the hardness values calculated at a specific force-diameter index. In some cases, this calculation
method leads to an error of one digit in the least significant figure.
相关标准
国家标准GB/T 231.4-2009《金属材料 布氏硬度试验 第4部分：硬度值表》
本标准等同采用国际标准ISO6506-4:2005《金属材料 布氏硬度试验 第4部分:硬度值表》(英文版)。
本标准的整体结构、层次划分、编写方法和技术内容与ISO6506-4:2005完全一致,并符合国家标准GB/T1《标准化工作导则》系列标准的规定。
本标准与等同采用的国际标准ISO6506-4:2005,在编辑上有以下微小差异:
—— 用中文惯用的小数点符号.代替英文采用的小数点符号,;
—— 重新编写了前言,代替ISO6506-4:2005的前言。
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