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GB/T 33216-2016 English PDF (GB/T33216-2016)

GB/T 33216-2016 English PDF (GB/T33216-2016)

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GB/T 33216-2016: Steel Open Die Forgings on Hammer - Classification of Complexity and Equivalent Coefficient
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GB/T 33216-2016
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 77.140.85
J 32
Steel Open Die Forgings on Hammer - Classification
of Complexity and Equivalent Coefficient
ISSUED ON: DECEMBER 13, 2016
IMPLEMENTED ON: JULY 1, 2017
Issued by: General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration of the People’s Republic of
China.
Table of Contents
Foreword ... 3 
1 Scope ... 4 
2 Classification of Complexity for Steel Open Die Forgings on Hammer ... 4 
3 Equivalent Coefficient ... 9 
Foreword
This Standard was drafted in accordance with the rules in GB/T 1.1-2009.
This Standard was proposed by and shall be under the jurisdiction of National
Technical Committee 74 on Forging of Standardization Administration of China
(SAC/TC 74).
The drafting organizations of this Standard: First Design and Research Institute MI
China Co., Ltd., Lanzhou Lanshi Group Co., Ltd., Beijing Research Institute of
Mechanical and Electrical Technology, Hubei Tri-ring Forging Co., Ltd.
The main drafters of this Standard: Xuqiang, Cui Shuangbin, Wen Tiejun, Zhang
Yunjun, Zhoulin, Yangwu, Weiwei, Chen Tianfu, Wang Bingzheng, Chen Wenjing,
Huang Mingwei.
Steel Open Die Forgings on Hammer - Classification
of Complexity and Equivalent Coefficient
1 Scope
This Standard stipulates the classification of complexity and equivalent coefficient for
steel open die forgings on hammer.
This Standard is applicable to general-purpose carbon-steel and structural alloy-steel
open die forgings (including tire die forgings) on hammer.
This Standard may be considered as a basis for the statistics of the standard
production volume of forgings, and the formulation of production quota and energy
consumption. In addition, it may also be considered as a reference for enterprises in
the formulation of sale price.
2 Classification of Complexity for Steel Open Die
Forgings on Hammer
In this Standard, steel open die forgings are classified into 9 types in accordance with
the complexity of forging shapes, as it is shown in Table 1.
3 Equivalent Coefficient
The nominal equivalent coefficient of each type of forgings shall comply with the
stipulations in Table 2. In this Standard, Type-VII forgings are taken as the benchmark
(nominal equivalent coefficient Zm = 1), which is corrected in accordance with the
following circumstances:
a) Correct in accordance with Table 3 and the tonnage of equipment used in
forging production;
b) Correct in accordance with Table 4 and the batch of forgings;
c) In terms of forging billet which are pre-forged through hot die forging, determine
the type in accordance with the shape, then, lower to an inferior type for
calculation (for example, lower Type-I to Type-II, and so forth). However, if it
belongs to Type-IX, it shall still be calculated as Type-IX;
d) Correct in accordance with Table 5 and the grade of steel used for the forgings.
Table 2 -- Table of Nominal Equivalent Coefficient (Zm)
Table 3 -- Table of Equipment Tonnage Correction Factor (X1)
Table 4 -- Table of Forging Batch Correction Factor (X2)
Type of Forgings
Nominal Equivalent
Coefficient Zm
Correction Factor X1
Mass of Forging
Hammer Dropping
Part/t
Correction Factor X2
Forging Batch/PCS
GB/T 33216-2016
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 77.140.85
J 32
Steel Open Die Forgings on Hammer - Classification
of Complexity and Equivalent Coefficient
ISSUED ON: DECEMBER 13, 2016
IMPLEMENTED ON: JULY 1, 2017
Issued by: General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration of the People’s Republic of
China.
Table of Contents
Foreword ... 3 
1 Scope ... 4 
2 Classification of Complexity for Steel Open Die Forgings on Hammer ... 4 
3 Equivalent Coefficient ... 9 
Foreword
This Standard was drafted in accordance with the rules in GB/T 1.1-2009.
This Standard was proposed by and shall be under the jurisdiction of National
Technical Committee 74 on Forging of Standardization Administration of China
(SAC/TC 74).
The drafting organizations of this Standard: First Design and Research Institute MI
China Co., Ltd., Lanzhou Lanshi Group Co., Ltd., Beijing Research Institute of
Mechanical and Electrical Technology, Hubei Tri-ring Forging Co., Ltd.
The main drafters of this Standard: Xuqiang, Cui Shuangbin, Wen Tiejun, Zhang
Yunjun, Zhoulin, Yangwu, Weiwei, Chen Tianfu, Wang Bingzheng, Chen Wenjing,
Huang Mingwei.
Steel Open Die Forgings on Hammer - Classification
of Complexity and Equivalent Coefficient
1 Scope
This Standard stipulates the classification of complexity and equivalent coefficient for
steel open die forgings on hammer.
This Standard is applicable to general-purpose carbon-steel and structural alloy-steel
open die forgings (including tire die forgings) on hammer.
This Standard may be considered as a basis for the statistics of the standard
production volume of forgings, and the formulation of production quota and energy
consumption. In addition, it may also be considered as a reference for enterprises in
the formulation of sale price.
2 Classification of Complexity for Steel Open Die
Forgings on Hammer
In this Standard, steel open die forgings are classified into 9 types in accordance with
the complexity of forging shapes, as it is shown in Table 1.
3 Equivalent Coefficient
The nominal equivalent coefficient of each type of forgings shall comply with the
stipulations in Table 2. In this Standard, Type-VII forgings are taken as the benchmark
(nominal equivalent coefficient Zm = 1), which is corrected in accordance with the
following circumstances:
a) Correct in accordance with Table 3 and the tonnage of equipment used in
forging production;
b) Correct in accordance with Table 4 and the batch of forgings;
c) In terms of forging billet which are pre-forged through hot die forging, determine
the type in accordance with the shape, then, lower to an inferior type for
calculation (for example, lower Type-I to Type-II, and so forth). However, if it
belongs to Type-IX, it shall still be calculated as Type-IX;
d) Correct in accordance with Table 5 and the grade of steel used for the forgings.
Table 2 -- Table of Nominal Equivalent Coefficient (Zm)
Table 3 -- Table of Equipment Tonnage Correction Factor (X1)
Table 4 -- Table of Forging Batch Correction Factor (X2)
Type of Forgings
Nominal Equivalent
Coefficient Zm
Correction Factor X1
Mass of Forging
Hammer Dropping
Part/t
Correction Factor X2
Forging Batch/PCS

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