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GB/T 1299-2014 English PDF (GBT1299-2014)

GB/T 1299-2014 English PDF (GBT1299-2014)

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GB/T 1299-2014: Alloy tool steels
GB/T 1299-2014
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 77.140.35
H 40
Replacing GB/T 1299-2000, GB/T 1298-2008
Tool and mould steels
ISSUED ON. DECEMBER 05, 2014
IMPLEMENTED ON. SEPTEMBER 01, 2015
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration of PRC.
Table of Contents
Foreword ... 4 
1 Scope ... 7 
2 Normative references ... 7 
3 Classification ... 11 
4 Ordering content ... 12 
5 Size, shape, weight ... 12 
5.1 Size, shape, allowable deviation of hot-rolled steel bars and coil rods ... 12 
5.2 Size, shape, allowable deviation of forged steel bars ... 16 
5.3 Size, shape, allowable deviation of cold-drawn steel bar ... 18 
5.4 Size, shape, allowable deviation of bright steel bar ... 18 
5.5 Size, shape, allowable deviation of post-machining delivered steel ... 18 
5.6 Weight ... 19 
6 Technical requirements ... 19 
6.1 Designations and chemical composition ... 19 
6.2 Smelting methods ... 26 
6.3 Delivery status ... 26 
6.4 Delivery hardness ... 27 
6.5 Macrostructure ... 32 
6.6 Microstructure ... 33 
6.7 Non-metallic inclusions ... 35 
6.8 Decarburization layer ... 36 
6.9 Relative magnetic permeability ... 37 
6.10 Ultrasonic testing ... 37 
6.11 Surface quality... 38 
6.12 Special requirements ... 39 
7 Test methods ... 40 
8 Inspection rules ... 40 
8.1 Inspection and acceptance ... 40 
8.2 Group-batch rules ... 40 
8.3 Sampling quantity and sampling locations ... 40 
8.4 Reinspection and judgement rules ... 42 
9 Packaging, marking, quality certificate ... 42 
Appendix A (Normative) Standard rating chart ... 43 
Appendix B (Normative) Test method of hardenability of non-alloy tool steel 49 
Appendix C (Informative) Main features and purposes of each designation .. 52 
Appendix D (Informative) Comparison of designation of tool and mould steel
between domestic and international standards ... 65 
Tool and mould steels
1 Scope
This standard specifies the classification, ordering content, size, shape, weight
and allowable deviation, technical requirements, test methods, inspection rules,
packaging, marking and quality certificate of tool and mould steel.
This standard is applicable to hot-rolled, forged, cold-drawn, bright steel bar
and post-machining delivered steel for tool and mould. The chemical
composition is also applicable to ingots, billets, their products.
2 Normative references
The following documents are essential to the application of this document. For
the dated documents, only the versions with the dates indicated are applicable
to this document; for the undated documents, only the latest version (including
all the amendments) are applicable to this standard.
GB/T 223.5 Steel and iron - Determination of acid-soluble silicon and total
silicon content - Reduced molybdosilicate spectrophotometric method
GB/T 223.8 Methods for chemical analysis of iron, steel and alloy - The
sodium fluoride separation-EDTA titration method for the determination of
aluminum content
GB/T 223.11 Iron, steel and alloy - Determination of chromium content -
Visual titration or potentiometric titration method
GB/T 223.13 Methods for chemical analysis of iron, steel and alloy - The
ammonium ferrous sulfate titration method for the determination of vanadium
content
GB/T 223.14 Methods for chemical analysis of iron, steel and alloy - The N-
Benzoy-N-Phenylhydroxylamine extraction photometric method for the
determination of vanadium content
GB/T 223.18 Methods for chemical analysis of iron, steel and alloy - The
sodium thiosulfate separation iodimetric method for the determination of
copper content
GB/T 223.19 Methods for chemical analysis of steels and alloys - The 2,9-
dimethyl-1,10-phenanthroline-trichloromethane extractive
spectrophotometric for the determination of copper content
GB/T 223.22 Methods for chemical analysis of iron, steel and alloy - The
nitroso-R-salt spectrophotometric method for the determination of cobalt
content
GB/T 223.23 Iron, steel and alloy - Determination of nickel content - The
dimethylglyoxime spectrophotometric method
GB/T 223.26 Iron, steel and alloy - Determination of molybdenum content -
The thiocyanate spectrophotometric method
GB/T 223.28 Methods for chemical analysis of iron, steel and alloy - The α-
benzoin oxime gravimetric method for the determination of molybdenum
content
GB/T 223.29 Iron steel and alloy - Determination of lead content - Carrier
precipitation-xylenol orange spectrophotometric method
GB/T 223.31 Iron steel and alloy - Determination of arsenic content -
Distillation-molybdenum blue spectrophotometric method
GB/T 223.43 Iron steel and alloy - Determination of tungsten content -
Gravimetry method and spectrophotometric method
GB/T 223.47 Method for chemical analysis of iron, steel and alloy - The
carrier precipitation-molybdenum blue photometric method for the
determination of antimony content
GB/T 223.48 Methods for chemical analysis of iron, steel and alloy - The
semixylenol orange photometric method for the determination of bismuth
content
GB/T 223.50 Methods for chemical analysis of iron, steel and alloy - The
phenylfuorone-CTMAB direct photometric method for the determination of
tin content
GB/T 223.53 Methods for chemical analysis of steels and alloys - The flame
atomic absorption spectrophotometry for the determination of copper
content
GB/T 223.54 Methods for chemical analysis of steels and alloys - The flame
atomic absorption spectrophotometry for the determination of nickel content
GB/T 223.58 Methods for chemical analysis of steels and alloys - The
sodium arsenite-sodium nitrite titration for the determination of manganese
content
GB/T 223.59 Iron, steel and alloy - Determination of phosphorus content -
Bismuth phosphomolybdate blue spectrophotometric method and antimony
GB/T 223.86 Steel and iron - Determination of total carbon content - Infrared
absorption method after combustion in an induction furnace
GB/T 224 Determination of depth of decarburization of steels
GB/T 225 Steel - Hardenability test by end quenching (Jominy test)
GB/T 226 Test method for macrostructure and defect of steel by etching
GB/T 230.1 Metallic materials - Rockwell hardness test - Part 1. Test method
(scales A, B, C, D, E, F, G, H, K, N, T)
GB/T 231.1 Metallic materials - Brinell hardness test - Part 1. Test method
GB/T 702-2008 Hot-rolled steel bars - Dimensions, shape, weight and
tolerances
GB/T 905-1994 Rubber and plastics hose - Determination of adhesion
between components
GB/T 908-2008 Forged bars - Dimensions, shape, weight and tolerances
GB/T 1979-2001 Standard diagrams for macrostructure and defect of
structural steels
GB/T 2101 General requirement of acceptance packaging marking and
certification for section steel
GB/T 3207-2008 Bright steel
GB/T 4336 Carbon and low-alloy steel - Determination of multi-element
contents - Spark discharge atomic emission spectrometric method (routine
method)
GB/T 6402-2008 Steel forgings - Method for ultrasonic testing
GB/T 6394 Metal - Methods for estimating the average grain size
GB/T 10561-2005 Steel - Determination of content of nonmetallic inclusions
- Micrographic method using standard diagrams
GB/T 11261 Steel and iron - Determination of oxygen content - The pulse
heating inert gas f...
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