GB/T 17394.4-2014Metallic materials - Leeb hardness test - Part 4: Tables of hardness values conversation (English PDF)

Foreword

GB/T 17394 Metallic Materials – Leeb Hardness Test consists of the following 4 parts:

--- Part 1: Test Method;

--- Part 2: Verification and Calibration of Hardness Tester;

--- Part 3: Calibration of Reference Blocks;

--- Part 4: Tables of Hardness Values Conversation.

This Part is Part 4 of GB/T 17394.

This Part was drafted as per the rules specified in GB/T 1.1-2009.

This Part was proposed by China Iron and Steel Industry Association.

This Part shall be under the jurisdiction of National Technical Committee on Steel of

Standardization Administration of China (SAC/TC 183).

Drafting organizations of this Part: Central Iron & Steel Research Institute; and China

Metallurgical Information and Standardization Institute.

Chief drafting staffs of this Part: Gao Yifei, and Dong Li.

Metallic Materials – Leeb Hardness Test – Part 4: Tables of

Hardness Values Conversion

1 Scope

This Part of GB/T 17394 gives the tables of Leeb hardness values conversion for D-type, G-

type and C-type impact devices.

2 Tables of Leeb Hardness Values Conversion for D-Type

Impact Device

For the tables of Leeb harness values conversion for D-type impact device made of carbon steel,

low-alloy steel and cast steel, cast iron, cast aluminum alloy, copper-zinc alloy, copper-

aluminum alloy and copper-tin alloy, pure copper and low-copper alloy, see Tables 1, 2, 3, 4, 5

and 6, respectively.

Table 1 -- Carbon Steel, Low Alloy Steel and Cast Steel (E~210000 MPa)

......