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GB/T 33220-2016 (GB/T33220-2016)

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GB/T 33220-2016English145 Add to Cart 0-9 seconds. Auto-delivery. Copper-beryllium alloy forgings and extrusions -- General specification Valid

GB/T 33220-2016: PDF in English (GBT 33220-2016)
GB/T 33220-2016
ICS 77.150.30
J 32
Copper-beryllium Alloy Forgings and Extrusions -
General Specification
Issued by: General Administration of Quality Supervision, Inspection and
Standardization Administration of the People's Republic of
Table of Contents
Foreword ... 3 
1 Scope ... 4 
2 Normative references ... 4 
3 Terms and definitions ... 5 
4 General requirements ... 5 
5 Order Information ... 6 
6 Materials and manufacturing ... 6 
7 Chemical composition ... 7 
8 State ... 7 
9 Grain size ... 7 
10 Physical properties ... 7 
11 Mechanical properties ... 7 
12 Heat treatment ... 8 
13 Special requirements ... 9 
14 Dimensions and allowable deviation ... 9 
15 Process, final processing and appearance ... 9 
16 Test method ... 9 
Copper-beryllium Alloy Forgings and Extrusions -
General Specification
1 Scope
This Standard specifies the requirements, order information, materials and
manufacturing, chemical composition, state, grain size, physical properties,
mechanical properties, heat treatment, dimensions and allowable deviation,
process, final processing, appearance and test method of copper-beryllium
alloy forgings and extrusions.
This Standard applies to copper-beryllium alloy forgings and extrusions whose
alloy grades are C17000 (Be content of 1.7%) and C17200 (Be content of 1.9%).
The alloys, which are not indicated with the grade, in this Standard, are C17200
copper-beryllium alloys.
2 Normative references
The following documents are indispensable for the application of this document.
For dated references, only the dated version applies to this document. For
undated references, the latest edition (including all amendments) applies to this
GB/T 6394, Determination of estimating the average grain size of metal
GB/T 8541, Terminology of forging and stamping
ASTM E 8, Test methods for tension testing of metallic materials
ASTM E 18, Test methods for Rockwell hardness of metallic materials
ASTM B 194, Specification for Copper-beryllium Alloy Plate, Sheet, Strip and
Rolled Bar
ASTM B 249/B249M, Specification for General Requirements for Wrought
Copper and Copper-alloy Rod, Bar, Shapes and Forgings
ASTM B 601, Classification for Temper Designations for Copper and Copper
Alloys - Wrought and Cast
ASTM B 846, Terminology for Copper and Copper Alloys
requirements are supplements to the relevant provisions of ASTM B
5 Order Information
5.1 Product order information includes:
a) name and version number of this Standard;
b) quantity: number of pieces or quality;
c) alloy number (see Chapter 1);
d) state (see Chapter 8) or heat treatment (see Chapter 12);
e) if necessary, the provided forging drawings shall contain shapes,
dimensions and allowances;
f) the extrusion shall be provided with length (or mass) and straightness.
5.2 when it is required, the forging drawings or purchase order shall be provided
with the following information:
a) tensile test (see Chapter 11);
b) special tests, such as grain size;
c) post processing (see Chapter 15);
d) grain size (see Chapter 9).
6 Materials and manufacturing
6.1 Materials
6.1.1 The materials which are used for the manufacture of forgings shall be
ingots or forgings of C17000 or C17200, of which, the purity and compactness
shall be in accordance with the provisions of the products in this Standard.
6.1.2 The quality certificate and test report shall be provided with the smelting
furnace number.
6.2 Manufacturing
The hot working and heat treatment processes which are used in the
manufacture of the product shall be able to make the products meet the
requirements of this Standard.
(Above excerpt was released on 2019-07-12, modified on 2021-06-07, translated/reviewed by: Wayne Zheng et al.)
Source: https://www.chinesestandard.net/PDF.aspx/GBT33220-2016