GB/T 8363-2018 in English

VALID

Steel—Drop-weight tear tests method

Issued on:2018-02-06
Implemented on:2018-11-01
File Format:PDF
Delivery:Via email within 5 business days

Price(USD)： $330.00
$321.00

Standard No:	GB/T 8363-2018
Document status:	VALID
Title in English:	Steel—Drop-weight tear tests method
Title in Chinese:	钢材落锤撕裂试验方法
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 5 business days
Issued on:	2018-02-06
Implemented on:	2018-11-01
Superseding:	GB/T 8363-2007 Test method for drop-weight tear tests of steel products
ICS Classification:	77.040.10-Mechanical testing of metals
Chinese Classification:	H22-Metal mechanical property test method
Professional Classification:	GB-National Standard
Related Keywords:	drop-weight tear test method drop-weight tear tests test method tear test tear performance
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《GB/T 8363-2018钢材落锤撕裂试验方法》由TC183（全国钢标准化技术委员会）归口，TC183SC4（全国钢标准化技术委员会力学及工艺性能试验方法分会）执行，主管部门为中国钢铁工业协会。

Introduction

1. Standard Overview

GB/T 8363—2018 "Drop-Weight Tear Test Method for Steel" is an important national standard used to evaluate the tearing properties of steel under specific conditions. This standard replaces the previous GB/T 8363—2007 and has made a number of improvements and extensions to the test method.

2. Standard Updates

Serial Number	Changes	Modification Notes
1	Standard Name Modification	Changed from "Drop-Weight Tear Test Method for Ferritic Steel" to a test method applicable to a wider range of steels.
2	New terms and definitions	Definitions of terms such as total absorbed energy, crack initiation energy and crack growth energy have been added.
3	Requirements for specimen support	Requirements to prevent specimen shaking have been added to ensure the accuracy of the test results.

3. Test Principle and Methods

The drop weight tear test (DWTT) tests the drop weight tear performance of steel by breaking a specimen in a simply supported beam state with a one-time impact force. The main indicators include shear area percentage (SA%), total absorbed energy (Eell), crack initiation energy (Ei) and crack growth energy (Ep).

4. Implementation Suggestions

Precautions when implementing DWTT test:

Ensure that the test equipment meets the energy requirements, and the hammer blade hardness and curvature radius meet the standards.
The shear deformation zone and heat-affected zone should be removed during specimen preparation to avoid affecting the test results.
Select the appropriate notch type (pressed notch or herringbone notch) according to different materials.

More samples: QC/T 942-2021 GB 50021-2001(2009) GB 18306-2015

Sample only — not a preview of GB/T 8363-2018

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