Foreword
Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative.
This Standard is developed with reference to American standard ASME SB-247 (2010 edition). Five designations of aluminum and aluminum alloy forgings are included in this Standard in consideration of the production and application in China.
This standard was proposed by and is under the jurisdiction of the National Technical Committee on Boilers and Pressure Vessels of Standardization Administration of China (SAC/TC 262).
The National Technical Committee on Boilers and Pressure Vessels of Standardization Administration of China (SAC/TC 262) is responsible for the interpretation of the Standard.
Aluminium and aluminium alloy forgings for pressure vessels
1 Scope
This standard specifies the technical requirements, test methods and inspection rules of aluminium and aluminium alloy forgings (including hand forgings and die forgings).
This standard is applicable to aluminium and aluminium alloy forgings with a design pressure not greater than 10.0Mpa used for pressure vessels.
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated reference, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 228.1-2010 Metallic materials - Tensile testing - Part 1: Method of test at room temperature
GB/T 3190 Wrought aluminium and aluminium alloy - Chemical composition
GB/T 3199 Wrought aluminium and aluminium alloy products - Packing marking transporting and storing
GB/T 20975 (all parts) Methods for chemical analysis of aluminium and aluminium alloys
JB/T 4730.5 Nondestructive testing of pressure equipment - Part 5: Penetrant testing
3 Terms and Definitions
For the purposes of this Standard, the following terms and definitions apply.
3.1 ring forging
axisymmetric hollow forging with an axial length (L) less than or equal to its outer diameter (D), as shown in Figure 1a), where the smaller of L and t is measured according to the nominal thickness.
3.2 disk forging
axisymmetric solid forging with an axial length (L) less than or equal to its outer diameter (D), as shown in Figure 1b), where L is measured according to the nominal thickness.
3.3 neck flange forging
axisymmetric hollow forging with two outer diameters in the axial direction, as shown in Figure 1c), where the larger of t1 and t2 is measured according to the nominal thickness.
3.4 bar forging
solid forging with a circular cross section and an axial length (L) greater than its outer diameter (D), as shown in Figure 1d), where D is measured according to the nominal thickness.
forging with a rectangular cross section and an axial length (L) greater than its lengths a and b, as shown in Figure 1e), the smaller of a and b is measured according to the nominal thickness.
Foreword i
1 Scope
2 Normative References
3 Terms and Definitions
4 Order information
5 Technical requirements
6 Test methods
7 Inspection rules
8 Packaging, marking and quality certificate
ICS 77.150.10
H 61
NB
中華人民共和國行業標準
NB／T 47029-2012
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壓力容器用鋁及鋁合金鍛件
Aluminium and aluminium alloy forgings for pressure vessels
（ASME SEC II B SB-247：2002，Specification for aluminum- alloy die and hand forgings, MOD）
2012-11-09發布 2013-03-01實施
國家能源局 發布
前言
本標準主要參照美國ASME（2010年版）SB-247標準制定。根據我國的生產和使用情況列入了5個牌號的鋁及鋁合金鍛件。
本標準由全國鍋爐壓力容器標準化技術委員會（SAC／TC 262）提出并歸口。
本標準由全國鍋爐壓力容器標準化技術委員會（SAC／TC 262）負責解釋。
壓力容器用鋁及鋁合金鍛件
1 范圍
本標準規定了壓力容器用鋁及鋁合金鍛件（包括自由鍛件和模鍛件）的技術要求、試驗方法及檢驗規則等。
本標準適用于設計壓力不大于16MPa的壓力容器用鋁及鋁合金鍛件。
2 規范性引用文件
下列文件對于本文件的應用是必不可少的。凡是注日期的引用文件，僅注日期的版本適用于本文件。凡是不注日期的引用文件，其最新版本（ 包括所有的修改單）適用于本文件。
GB／T 228.1-2010 金屬材料 拉伸試驗 第1部分：室溫試驗方法
GB／T 3190 變形鋁及鋁合金化學成分
GB／T 3199 鋁及鋁合金加工產品包裝、標志、運輸、貯存
GB／T 20975（所有部分） 鋁及鋁合金化學分析方法
JB／T 4730.5 承壓設備無損檢測 第5部分：滲透檢測
3 術語和定義
本標準采用下列術語和定義。
3.1 環形鍛件 ring forging
軸向長度L小于或等于其外徑D的軸對稱空心鍛件，如圖1a）所示。L和t中的小者為公稱厚度。
3.2 餅形鍛件 disk forging
軸向長度L小于或等于其外徑D的軸對稱實心鍛件，如圖1b）所示。L為公稱厚度。
3.3 長頸法蘭鍛件 neck flange forging
軸向有兩個外徑的軸對稱空心鍛件，如圖1c）所示。t1和t2中的大者為公稱厚度。
3.4 條形鍛件 bar forging
橫截面為圓形，軸向長度L大于其外徑D的實心鍛件，如圖1 d）所示。D為公稱厚度。
橫截面為矩形，軸向長度L均大于其兩邊長a、b的鍛件，如圖1 e）所示。a和b中的小者為公稱厚度。
