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.
相關(guān)標準
國家標準GB/T 231.4-2009《金屬材料 布氏硬度試驗 第4部分：硬度值表》
本標準等同采用國際標準ISO6506-4:2005《金屬材料 布氏硬度試驗 第4部分:硬度值表》(英文版)。
本標準的整體結(jié)構(gòu)、層次劃分、編寫方法和技術(shù)內(nèi)容與ISO6506-4:2005完全一致,并符合國家標準GB/T1《標準化工作導則》系列標準的規(guī)定。
本標準與等同采用的國際標準ISO6506-4:2005,在編輯上有以下微小差異:
—— 用中文慣用的小數(shù)點符號.代替英文采用的小數(shù)點符號,;
—— 重新編寫了前言,代替ISO6506-4:2005的前言。
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