GB/T 38769-2020
Metallic materials－Measurement of fracture toughness at impact loading rates using precracked Charpy-type test pieces

Standard No.

GB/T 38769-2020

Language

Chinese

Release Date

2020

Published By

国家市场监督管理总局、中国国家标准化管理委员会

Lastest

GB/T 38769-2020

Scope

This standard specifies the principle, specimen, testing machine, test procedure and measurement, calculation of fracture mechanics parameters and test report for instrumented impact on pre-cracked Charpy specimens of metallic materials and evaluation of their fracture toughness by means of fracture mechanics. This standard applies to the determination of impact fracture toughness of Charpy specimens with pre-cracked metal materials.

GB/T 38769-2020 Referenced Document

• GB/T 229 Metallic materials—Charpy pendulum impact test method*， 2020-09-29 Update
• GB/T 229-2007 Metallic materials- Charpy pendulum impact test method

GB/T 38769-2020 history

• 2020 GB/T 38769-2020 Metallic materials－Measurement of fracture toughness at impact loading rates using precracked Charpy-type test pieces