YB/T 2011-2014 PDF English
US$110.00 · In stock · Download in 9 secondsYB/T 2011-2014: Continuous casting square and rectangular blank Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedureStatus: Valid YB/T 2011: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| YB/T 2011-2014 | English | 110 |
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Continuous casting square and rectangular blank
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| YB/T 2011-2004 | English | 125 |
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Continuous casting square and rectangular blank
| Obsolete |
| YB 2011-1983 | English | RFQ |
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(Continuous cast billet and rectangular billet)
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YB/T 2011-2014: Continuous casting square and rectangular blank---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/YBT2011-2014
YB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 77.140.70
H 43
Replacing YB/T 2011-2004
Continuous casting square and rectangular blank
Issued on. MAY 06, 2014
Implemented on. OCTOBER 01, 2014
Issued by. Ministry of Industry and Information Technology of the
People’s Republic of China
Table of Contents
Foreword... 3
1 Scope... 4
2 Normative references... 4
3 Terms and definitions... 4
4 Order contents... 5
5 Dimensions, appearance, weight and allowable deviation... 5
6 Technical requirements... 8
7 Test method... 9
8 Inspection rules... 10
9 Transport, storage, marks and quality certificate... 11
Foreword
This Standard is drafted in accordance with the rules specified in GB/T 1.1-2009.
This Standard replaces YB/T 2011-2004 Continuous casting square and rectangular
blank.
Compared with YB/T 2011-2004, the main differences of this Standard are as follows.
-- Modify the provisions of bulges;
-- Add the provisions of sinking;
-- Modify the schematic diagram of shearing oblique;
-- Add the provisions of furnace number classification;
-- Modify the provisions of shrinkage cavity in top cutting and end cutting.
-- Delete the provisions of bulge measurement.
This Standard was proposed by China Iron and Steel Association.
This Standard shall be under the jurisdiction of National Technical Committee of Steel
Standardization (SAC/TC183).
Drafting organizations of this Standard. Hebei Shougang Qian An Iron & Steel Co., Ltd.,
Anshan Baode Iron and Steel Co., Ltd, Tianjin Iron and Steel Group Co., Ltd., China
Metallurgical Information and Standardization Institute, and Shougang Group.
Main drafters of this Standard. Liu Xiaoyan, Wang Hongxin, Wang Liping, Gong Wenchao,
Liu Baoshi, Zhang Bingcheng, Li Bingyi, Shi Li, and Wang Yujian.
The previous versions replaced by this Standard are. YB 2011-1983, ND YB/T 2011-2004.
Continuous casting square and rectangular blank
1 Scope
This Standard specifies the definition, order contents, dimensions, appearance, weight as
well as allowable deviation, technical requirements, test methods, inspection rules,
transport, storage, marks, and quality certificate of non-alloy steel, low-alloy steel, and
alloy-steel continuous casting square and rectangular blank (hereinafter referred to as
continuous casting blank).
This Standard is applicable to non-alloy steel, low-alloy steel, and alloy-steel (excluding
tool steel) continuous casting blank which are classified in accordance with GB/T 13304.1
and GB/T 13304.2.
2 Normative references
The articles contained in the following documents have become part of this document
when they are quoted herein. For the dated documents so quoted, all the modifications
(including all corrections) or revisions made thereafter shall be applicable to this
document.
GB/T 222 Permissible tolerances for chemical composition of steel products
GB/T 226 Etch test for macrostructure and defect of steels
GB/T 2101 General requirement of acceptance packaging marking and certification
for section steel
GB/T 20066 Steel and iron-Sampling and preparation of samples for the
determination of chemical composition
GB/T 13304.1 Steels classification - Part 1.Classification of according to chemical
composition
3 Terms and definitions
The following terms and definitions apply to this Standard.
3.1
Continuous casting square blank
It refers to the continuous casting blank of which the four sides of the cross section are in
the same length, and the four interior angles are 90°.
4 Order contents
Order contract according to this Standard shall include the following contents.
5 Dimensions, appearance, weight and allowable deviation
5.1 Dimensions and allowable deviation
5.1.1 Dimensions and allowable deviation of continuous casting blank shall comply with
the requirements indicated in table 1.
5.2 Appearance
5.2.1 Diagonal line difference, shearing oblique, and bulge of continuous casting blank
shall comply with the requirements indicated in table 1, with diagram shown in table 2.
5.2.3 The broadening at the end of the continuous casting blank due to shear deformation
shall not exceed 10% of the side-length.
5.2.4 There shall be no obvious torsion on the continuous casting blank.
5.3 Weight
Continuous casting blank shall be delivered at the actual weight, and theoretical weight
delivery is also available with negotiation between both the demander and the supplier.
6 Technical requirements
6.1 Chemical components
6.2 Pouring
Generally, continuous pouring shall be conducted with the same grade molten steel for the
continuous casting blank. When pouring with different grades of molten steel, the
intermediate blank shall be determined as per the actual components.
6.3 Furnace number classification
Adjacent furnace number classification method for continuous casting blank. when
pouring the molten steel in the teeming ladle into the tundish, calculate the beginning of
the next furnace according to the residual molten steel volume in the tundish of the
weighing system.
6.5 Macrostructure
Superior non-alloy-steel, special-quality non-alloy steel, and alloy-steel continuous casting
blank shall take macrostructure assessment as per YB/T 153; its conformity grade shall
be determined by both the demander and the supplier after negotiation. If the supplier can
ensure the conformity of the macrostructure, inspection may be exempted.
6.6 Surface quality
6.6.1 There shall be no visible halved joint, skull patch, scabs and impurity on the surface
of the continuous casting blank.
6.6.6 If there is any flaw as specified above which is unallowable or beyond the allowable
scope, it shall be cut away. The cutting width shall not be less than 6 times of the depth,
and the cutting length shall not be less than 10 times of the depth. After the shaving, the
flaw part shall be smooth without edges and corners.
6.6.7 The surface quality requirements of the continuous casting blank can be properly
adjusted after the negotiation of both the demander and the supplier.
7 Test method
The inspection items, sampling quantity, sampling method and test method of each batch
of continuous casting blank shall comply with the provisions specified in table 3.
8 Inspection rules
8.1 Inspection and acceptance
Inspection and acceptance of continuous casting blank shall be conducted by the quality
supervision department of the supplier, and the demander has the right to conduct
re-check.
8.2 Batch-grouping rules
Inspection and acceptance of continuous casting blank shall be conducted in batches,
and each batch shall be consisted of the steel blanks with the same-furnace number and
same-cross section.
8.3 Dimension measurement
8.3.1 Side-length
It shall be measured in the vertical direction of the continuous casting blank length, taking
the longest as the side-length. The part to be measured shall be away from the area with
shear deformation and flaws.
8.4 Re-check and judgment rules
The re-check and judgment of continuous casting blank shall be conducted as per GB/T
2101.
9 Transport, storage, marks and quality certificate
9.1 In case of any special requirements proposed by the demander, they can be
determined by both parties through negotiation.
9.3 The quality certificate shall comply with the provisions of GB/T 2101.
YB/T 2011-2014
YB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 77.140.70
H 43
Replacing YB/T 2011-2004
Continuous casting square and rectangular blank
Issued on. MAY 06, 2014
Implemented on. OCTOBER 01, 2014
Issued by. Ministry of Industry and Information Technology of the
People’s Republic of China
Table of Contents
Foreword... 3
1 Scope... 4
2 Normative references... 4
3 Terms and definitions... 4
4 Order contents... 5
5 Dimensions, appearance, weight and allowable deviation... 5
6 Technical requirements... 8
7 Test method... 9
8 Inspection rules... 10
9 Transport, storage, marks and quality certificate... 11
Foreword
This Standard is drafted in accordance with the rules specified in GB/T 1.1-2009.
This Standard replaces YB/T 2011-2004 Continuous casting square and rectangular
blank.
Compared with YB/T 2011-2004, the main differences of this Standard are as follows.
-- Modify the provisions of bulges;
-- Add the provisions of sinking;
-- Modify the schematic diagram of shearing oblique;
-- Add the provisions of furnace number classification;
-- Modify the provisions of shrinkage cavity in top cutting and end cutting.
-- Delete the provisions of bulge measurement.
This Standard was proposed by China Iron and Steel Association.
This Standard shall be under the jurisdiction of National Technical Committee of Steel
Standardization (SAC/TC183).
Drafting organizations of this Standard. Hebei Shougang Qian An Iron & Steel Co., Ltd.,
Anshan Baode Iron and Steel Co., Ltd, Tianjin Iron and Steel Group Co., Ltd., China
Metallurgical Information and Standardization Institute, and Shougang Group.
Main drafters of this Standard. Liu Xiaoyan, Wang Hongxin, Wang Liping, Gong Wenchao,
Liu Baoshi, Zhang Bingcheng, Li Bingyi, Shi Li, and Wang Yujian.
The previous versions replaced by this Standard are. YB 2011-1983, ND YB/T 2011-2004.
Continuous casting square and rectangular blank
1 Scope
This Standard specifies the definition, order contents, dimensions, appearance, weight as
well as allowable deviation, technical requirements, test methods, inspection rules,
transport, storage, marks, and quality certificate of non-alloy steel, low-alloy steel, and
alloy-steel continuous casting square and rectangular blank (hereinafter referred to as
continuous casting blank).
This Standard is applicable to non-alloy steel, low-alloy steel, and alloy-steel (excluding
tool steel) continuous casting blank which are classified in accordance with GB/T 13304.1
and GB/T 13304.2.
2 Normative references
The articles contained in the following documents have become part of this document
when they are quoted herein. For the dated documents so quoted, all the modifications
(including all corrections) or revisions made thereafter shall be applicable to this
document.
GB/T 222 Permissible tolerances for chemical composition of steel products
GB/T 226 Etch test for macrostructure and defect of steels
GB/T 2101 General requirement of acceptance packaging marking and certification
for section steel
GB/T 20066 Steel and iron-Sampling and preparation of samples for the
determination of chemical composition
GB/T 13304.1 Steels classification - Part 1.Classification of according to chemical
composition
3 Terms and definitions
The following terms and definitions apply to this Standard.
3.1
Continuous casting square blank
It refers to the continuous casting blank of which the four sides of the cross section are in
the same length, and the four interior angles are 90°.
4 Order contents
Order contract according to this Standard shall include the following contents.
5 Dimensions, appearance, weight and allowable deviation
5.1 Dimensions and allowable deviation
5.1.1 Dimensions and allowable deviation of continuous casting blank shall comply with
the requirements indicated in table 1.
5.2 Appearance
5.2.1 Diagonal line difference, shearing oblique, and bulge of continuous casting blank
shall comply with the requirements indicated in table 1, with diagram shown in table 2.
5.2.3 The broadening at the end of the continuous casting blank due to shear deformation
shall not exceed 10% of the side-length.
5.2.4 There shall be no obvious torsion on the continuous casting blank.
5.3 Weight
Continuous casting blank shall be delivered at the actual weight, and theoretical weight
delivery is also available with negotiation between both the demander and the supplier.
6 Technical requirements
6.1 Chemical components
6.2 Pouring
Generally, continuous pouring shall be conducted with the same grade molten steel for the
continuous casting blank. When pouring with different grades of molten steel, the
intermediate blank shall be determined as per the actual components.
6.3 Furnace number classification
Adjacent furnace number classification method for continuous casting blank. when
pouring the molten steel in the teeming ladle into the tundish, calculate the beginning of
the next furnace according to the residual molten steel volume in the tundish of the
weighing system.
6.5 Macrostructure
Superior non-alloy-steel, special-quality non-alloy steel, and alloy-steel continuous casting
blank shall take macrostructure assessment as per YB/T 153; its conformity grade shall
be determined by both the demander and the supplier after negotiation. If the supplier can
ensure the conformity of the macrostructure, inspection may be exempted.
6.6 Surface quality
6.6.1 There shall be no visible halved joint, skull patch, scabs and impurity on the surface
of the continuous casting blank.
6.6.6 If there is any flaw as specified above which is unallowable or beyond the allowable
scope, it shall be cut away. The cutting width shall not be less than 6 times of the depth,
and the cutting length shall not be less than 10 times of the depth. After the shaving, the
flaw part shall be smooth without edges and corners.
6.6.7 The surface quality requirements of the continuous casting blank can be properly
adjusted after the negotiation of both the demander and the supplier.
7 Test method
The inspection items, sampling quantity, sampling method and test method of each batch
of continuous casting blank shall comply with the provisions specified in table 3.
8 Inspection rules
8.1 Inspection and acceptance
Inspection and acceptance of continuous casting blank shall be conducted by the quality
supervision department of the supplier, and the demander has the right to conduct
re-check.
8.2 Batch-grouping rules
Inspection and acceptance of continuous casting blank shall be conducted in batches,
and each batch shall be consisted of the steel blanks with the same-furnace number and
same-cross section.
8.3 Dimension measurement
8.3.1 Side-length
It shall be measured in the vertical direction of the continuous casting blank length, taking
the longest as the side-length. The part to be measured shall be away from the area with
shear deformation and flaws.
8.4 Re-check and judgment rules
The re-check and judgment of continuous casting blank shall be conducted as per GB/T
2101.
9 Transport, storage, marks and quality certificate
9.1 In case of any special requirements proposed by the demander, they can be
determined by both parties through negotiation.
9.3 The quality certificate shall comply with the provisions of GB/T 2101.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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