1 Scope
This standard specifies terms and definitions, classification, requirements and rounding off of numerical values of surface condition of hot-rolled steel plates.
This standard is applicable to hot-rolled steel plate rolled in single piece and shear plates sheared from hot rolled coil (hereinafter referred to as steel plates), whose thickness is within 3mm~400mm.
2 Normative References
The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments (excluding corrections) to, or revisions of, any of these publications do not apply. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies.
YB/T 081 Rule for Rounding Off of Numberical Values and Judgement of Testing Values for Technical Standards of Metallurgy
3 Terms and Definitions
For the purposes of this document, the following terms and definitions apply.
3.1
imperfection
Foreword i
1 Scope
2 Normative References
3 Terms and Definitions
4 Classification
5 Requirements
6 Rounding Off of Numerical Values
Annex A (Informative) Description of Common Surface Discontinuities
Annex B (Informative) Classification of Surface Conditions and Their Respective Requirements
1 Scope
This standard specifies terms and definitions, classification, requirements and rounding off of numerical values of surface condition of hot-rolled steel plates.
This standard is applicable to hot-rolled steel plate rolled in single piece and shear plates sheared from hot rolled coil (hereinafter referred to as steel plates), whose thickness is within 3mm~400mm.
2 Normative References
The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments (excluding corrections) to, or revisions of, any of these publications do not apply. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies.
YB/T 081 Rule for Rounding Off of Numberical Values and Judgement of Testing Values for Technical Standards of Metallurgy
3 Terms and Definitions
For the purposes of this document, the following terms and definitions apply.
3.1
imperfection
Contents of GB/T 14977-2008
Foreword i
1 Scope
2 Normative References
3 Terms and Definitions
4 Classification
5 Requirements
6 Rounding Off of Numerical Values
Annex A (Informative) Description of Common Surface Discontinuities
Annex B (Informative) Classification of Surface Conditions and Their Respective Requirements
