YS/T 335-2009 in English

VALID

Metallographic determination methods of oxygen content in oxygen-free copper

Issued on:2009-12-04
Implemented on:2010-06-01
File Format:PDF
Delivery:Via email within 1~3 business days

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Standard No:	YS/T 335-2009
Document status:	VALID
Title in English:	Metallographic determination methods of oxygen content in oxygen-free copper
Title in Chinese:	无氧铜含氧量金相检验方法
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2009-12-04
Implemented on:	2010-06-01
ICS Classification:	77.040.99-Other methods of testing of metals
Chinese Classification:	H13-Heavy metals and their alloys analysis method
Professional Classification:	YS-Non-ferrous Metal
Related Keywords:	standard oxygen content oxygen content metallographic determination methods oxygen content grade metallographic determination principle
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1 Scope

This standard specifies metallographic determination principle, apparatus, specimen and specimen preparation, test procedure and requirements as well as the test report of oxygen content in oxygen-free copper.
This standard is applicable to the inspection of grade of oxygen content in oxygen-free copper.

2 Method Principle

Heat the prepared specimen in hydrogen-containing atmosphere and cool it under the condition free of air exposure, according to the feature that the cuprous oxide reacts with reductive hydrogen and thus generating cracks or cracking, observe with metalloscope and judge its oxygen content grade based on the crack or cracking condition.

3 Apparatus

Foreword I
1 Scope
2 Method Principle
3 Apparatus
4 Specimen and Specimen Preparation
5 Test Methods and Requirements
6 Test Report
Appendix A (Normative) Maps for Standard Oxygen Content