ISO 3738-1: 1982 《硬质合金洛氏硬度试验（A标尺）第1部分：试验方法》国际标准（英文版）_硬度标准_技术

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ISO 3738-1: 1982 《硬质合金洛氏硬度试验（A标尺）第1部分：试验方法》国际标准（英文版）

International Standard ISO 3738-1:1982 ISO 3738-1-1982(英文).png

Hardmetals - Rockwell hardness test (scale A) -

Part 1 : Test method

1 Scope and field of application

This part of IS0 3738 specifies the Rockwell hardness test (scale A) for hardmetals.

2 References

ISOIR 80, Rockwell hardness test IB and C scales) for steel.

ISOIR 716, Verification of Rockwell B and C scale hardness testing machines.

3 Principle

Forcing a conical diamond indenter into a test piece in two operations and measurement of the permanent increase, e, of the depth of indentation by means of a depth gauge under defined conditions.

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