NB/T 47029-2012 英文版 壓力容器用鋁及鋁合金鍛件

NB/T 47029-2012 英文版

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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.

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GB/T 228.1-2010

GB/T 3190

GB/T 3199
Metallic materials - Tensile testing - Part 1: Method of test at room temperature
Wrought ? aluminium ? ?and ? aluminium ? ?alloy ? - ? ?Chemical composition
Wrought aluminium and aluminium alloy products - Packing marking transporting and storing

GB/T 20975 (all parts)

JB/T 4730.5
Methods for chemical analysis of aluminium and aluminium alloys
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.

4 ? Order information
4.1 ? The buyer shall indicate the code of this Standard, as well as brand, as-supplied state and quantity of products in an order contract.

4.2 ? The buyer shall provide order drawings.

4.3 ? The buyer shall state additional requirements beyond or higher than those specified in this Standard in the order contract.