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GB/T 33811-2017 English PDF (GBT33811-2017)

GB/T 33811-2017 English PDF (GBT33811-2017)

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GB/T 33811-2017: Alloy tool and mould steel sheets and plates
GB/T 33811-2017
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 77.140.50
H 46
Alloy Tool and Mould Steel Sheets and Plates
ISSUED ON. MAY 31, 2017
IMPLEMENTED ON. DECEMBER 1, 2017
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine of the People's Republic of China;
Standardization Administration of the People's Republic of
China.
3. No action is required - Full-copy of this standard will be automatically and
immediately delivered to your EMAIL address in 0~60 minutes.
Table of Contents
Foreword ... 3 
1 Application Scope ... 4 
2 Normative References ... 4 
3 Ordering Content ... 6 
4 Dimensions and Shape ... 6 
5 Technical Requirements ... 8 
6 Test Methods ... 11 
7 Inspection Rules ... 12 
8 Packaging, Marking and Quality Certification ... 13 
Annex A (Informative) Main Characteristics and Purposes of All
Designations ... 14 
Foreword
This Standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This Standard was proposed by China Iron and Steel Association.
This Standard shall be under the jurisdiction of the National Standardization Technical
Committee on Steels (SAC/TC 183).
The drafting organizations of this Standard. Northeast Special Steel Shares Co., Ltd.,
China Metallurgical Information and Standardization Institute.
The main drafters of this Standard. Wang Lin, Mou Feng, Ji Xiao, Liu Yufen, Dai Qiang.
Alloy Tool and Mould Steel Sheets and Plates
1 Application Scope
This Standard specifies the ordering content, dimensions, shape, weight,
specifications, test methods, inspection rules, and packaging, marking and quality
certification of alloy tool and mould steel sheets and plates (hereinafter referred to as
“steel sheets and plates”).
This Standard applies to cold-rolled steel sheets and plates of thickness not greater
than 4 mm and hot-rolled steel sheets and plates of thickness not greater than 10 mm.
2 Normative References
The following referenced documents are indispensable for the application of this
document. For dated references, only the edition dated applies to this document. For
undated references, the latest edition of the referenced documents (including all
amendments) applies to this Standard.
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-
Benzoyl-N-Phenylhydroxylamine Extraction Photometric Method for the
Determination of Vanadium 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 223.40, Iron, Steel and Alloy – Determination of Niobium Content by the
Sulphochlorophenol S Spectrophotometric Method
GB/T 223.43, Iron Steel and Alloy – Determination of Tungsten Content –
Gravimetric Method and Spectrophotometric Method
GB/T 223.58, Methods for Chemical Analysis of Iron, Steel and Alloy – The Sodium
Arsenite-Sodium Nitrite Titrimetric Method for the Determination of Manganese
Content
GB/T 223.60, Methods for Chemical Analysis of Iron, Steel and Alloy – The
Perchloric Acid Dehydration Gravimetric Method for the Determination of Silicon
Content
GB/T 223.62, Methods for Chemical Analysis of Iron, Steel and Alloy – The Butyl
Acetate Extraction Photometric Method for the Determination of Phosphorus
Content
GB/T 223.68, Methods for Chemical Analysis of Iron, Steel and Alloy – The
Potassium Iodate Titration Method after Combustion in the Pipe Furnace for the
Determination of Sulfur Content
GB/T 223.71, Methods for Chemical Analysis of Iron, Steel and Alloy – The
Gravimetric Method after Combustion in the Pipe Furnace for the Determination of
Carbon Content
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 231.1, Metallic Materials – Brinell Hardness Test – Part 1. Test Method
GB/T 247, Methods for Chemical Analysis of Iron, Steel and Alloy – The Gravimetric
Method after Combustion in the Pipe Furnace for the Determination of Carbon
Content
GB/T 708, Dimensions, Shape, Weight and Tolerances for Cold-Rolled Plates and
Sheets
GB/T 709-2006, Dimension, Shape, Weight and Tolerances for Hot-Rolled Steel
Plates and Sheets
GB/T 1299-2014, Tool and Mould Steels
GB/T 4336, Carbon and Low-alloy Steel – Determination of Multi-element Contents
– Spark Discharge Atomic Emission Spectrometric Method (Routine Method)
GB/T 6394, Metal – Methods for Estimating the Average Grain Size
GB/T 8651, Flaw Detection Method by the Ultrasonic Plate Wave for Metal Plates
4.4.1 Steel plates and sheets of other dimensions may be supplied, which shall be
as agreed on by the supplier and the purchaser and stated in the contract.
4.4.2 Steel plates and sheets of higher rolling precision may be supplied, which shall
be as agreed on by the supplier and the purchaser and stated in the contract.
5 Technical Requirements
5.1 Designation and chemical composition
The designation and chemical composition (product analysis composition) of steels
shall be as specified in Table 3. Steels of other designations in GB/T 1299-2014 may
also be supplied as required by the purchaser, which shall be stated in the contract.
5.2 Smelting method
Steels shall be smelted with the method of electric furnace + vacuum refining or
electroslag remelting. When the electroslag remelting smelting is required, it shall be
stated in the contract.
5.3 Delivery condition
5.3.1 Steel plates and sheets shall be delivered in the state of annealing.
5.3.2 Steel plates and sheets may be delivered in the state of acid pickling as
required by the purchaser, which shall be stated in the contract.
5.4 Hardness
5.4.1 The Brinell hardness of steel plates and sheets under the delivery condition
shall be as specified in Table 4.
5.4.2 For steel plates and sheets of thickness not greater than 1.5 mm, when the
supplier is capable of ensuring the hardness under the delivery condition is as specified
in Table 4, the testing for hardness under the delivery condition may be omitted.
5.5 Macrostructure
There shall be no visible shrinking hole remnants, cracks and inclusions on the acid
pickling macrostructural test pieces of steel plates and sheets or steel billets.
5.6 Nonmetallic inclusions
The nonmetallic inclusions of steel plates and sheets shall be tested and assessed in
accordance with Method A in GB/T 10561-2005; the results shall be as specified in
Table 5. When delivery is made as required for Group 1, it shall be stated in the contract,
or they shall be delivered as required for Group 2.
tested as required by the purchaser, which shall be stated in the contra...
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