Standard No.:	GB 1979-1980
English Name:	Diagram of a low magnification texture blemish grading of structural steel
Chinese Name:	结构钢低倍组织缺陷评级图
Professional Classification:	GB    National Standard
Issued on:	1981-5-1
Implemented on:	2002-5-1
Status:	superseded
Superseded by:	GB/T 1979-2001 STANDARD diagrams for macrostructure and defect of structural steels
Superseded on:	2002-5-1
Language:	English
File Format:	PDF
Word Count:	2000 words
Price(USD):	40.00
Delivery:	via email in 1 business day

1 Application Scope



1. The grading diagrams are divided into Diagram I, Diagram II and Diagram III (see pages 5~42) according to the dimensions and defect properties of steels (billets); the application scopes of such diagrams are as follows:

nt.

1 Application Scope
2 Classification and Assessment for Macrostructure Defects