GB/T 2975-1998 in English

SUPERSEDED

Steel and Steel Products - Location and Preparation of Test Pieces for Mechanical Testing

Issued on:1998-10-16
Implemented on:1999-08-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $60.00
$59.00

Standard No:	GB/T 2975-1998
Document status:	SUPERSEDED
Superseded by:	GB/T 2975-2018 Steel and steel products—Location and preparation of samples and test pieces for mechanical testing
Superseded on:	2019-02-01
Title in English:	Steel and Steel Products - Location and Preparation of Test Pieces for Mechanical Testing
Title in Chinese:	钢及钢产品力学性能试验取样位置及试样制备
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	1998-10-16
Implemented on:	1999-08-01
Superseding:	GB 2975-1982 Rules for sampling in mechanical and technological testing of steel products
ICS Classification:	77.040.10-Mechanical testing of metals
Chinese Classification:	H20-Metal physical and chemical property test method in general
Professional Classification:	GB-National Standard
Related Keywords:	steel products test pieces steel products annex b test piece steel plate
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《GB/T 2975-1998钢及钢产品力学性能试验取样位置及试样制备》由TC183（全国钢标准化技术委员会）归口，TC183SC2（全国钢标准化技术委员会基础分会）执行，主管部门为中国钢铁工业协会。
本标准规定了GB/T 15574中定义的型钢、条钢、钢板和钢管的力学性能试验、取样位置和试样制备要求。本标准适用于其他金属产品的取样。如产品标准或供需双方协议对取样另有规定，应按其规定执行。

1. Scope
This national standard specifies the requirements of the mechanical testing, sampling location and sample preparation of the section steel, steel bar, steel plate and steel tube defined in GB/T 15574. Through negotiation on both sides, this standard may also adopt other metal products for sampling.
If the product standard or the mutual agreement has other regulations on the sampling, it shall execute the regulations.
2. Normative reference
The following standards contain provisions which, through reference in this text, constitute provisions of this standard. At time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below.
GB/T 15574-1995 Classification of steel products
3. Definitions and signs
This standard adopts the following definitions and signs:
3.1 Definitions
3.1.1 Test unit
According to the product standard or the requirements of the contract, and based on the experiment conducted on the sample product, the number or tons of the take-over or rejected products are referred to test unit (see Figure 1).
3.1.2 Sample product
In test and experiment, extractive part of the test unit (for example: a piece of plate) is referred to sample product (see Figure 1).
3.1.3 Sample
In order to prepare for one or several samples, adequate material cut from the sample product is referred to sample (see Figure 1).
Note: in certain cases, the samples equal to sample product.
3.1.4 Rough specimen
In order to prepare for sample, the samples after mechanical treatment or required heat treatment are referred to rough specimen (see Figure 1).
3.1.5 Test piece
After mechanical treatment or not, the rough specimen that meet the requirements of size and test are referred to test piece.
Note: in certain cases, the test piece may be the sample material, or may be the rough specimen.
3.1.6 Reference condition
The samples, rough specimen or test pieces shall be under heat treatment to represent the final state of the product.

Foreword
ISO foreword
1. Scope
2. Normative reference
3. Definitions and signs
3.1 Definitions
3.2 Signs
4. General requirements
5. Sample condition
6. Preparation of test pieces
Annex A (Normative) Sampling location for mechanical testing of steel products
Annex B (Informative) Selection of the admittance of the rough specimen