GB/T 2651-2023Destructive tests on welds in metallic materials - Transverse tensile test (English PDF)

Foreword

This document was drafted in accordance with the rules given in GB/T 1.1-2020

"Directives for standardization - Part 1: Rules for the structure and drafting of

standardizing documents".

This document replaces GB/T 2651-2008 "Destructive tests on welds in metallic

materials -- Transverse tensile test". Compared with GB/T 2651-2008, in addition to

structural adjustments and editorial changes, the main technical changes are as follows:

a) Changed the description of "Scope" (see Chapter 1 of this Edition; Chapter 1 of

Edition 2008);

b) Deleted L0 (see Table 1 of Edition 2008). Added d0 and S0 (see Chapter 4 of this

Edition);

c) Changed "Principle" to "General principle". Added relevant requirements (see

Chapter 5 of this Edition; Chapter 3 of Edition 2008);

d) Changed the "small diameter" in the sampling position to D0 <= 50 mm (see 6.1 of

this Edition; 5.1 of Edition 2008);

e) Added relevant requirements for "Marking" (see 6.2 of this Edition);

f) Changed "Note" to the main text (see 6.3 of this Edition; 5.3 of Edition 2008);

g) Added "water jet cutting" (see 6.4.3 of this Edition);

h) Changed Figures 1 to 4 (see 6.5 of this Edition; 5.5 of Edition 2008);

i) Changed 51 and 52 in footnote a of Table 2 to 5. Added "resistance welding" (see

1 Scope

This document specifies the specimen preparation and test procedures for transverse

tensile test of welded butt joints, so as to determine their tensile strength and fracture

location.

This document applies to transverse tensile tests on all welded butt joints.

2 Normative references

The following referenced documents are indispensable for the application of this

document. For dated references, only the edition cited applies. For undated references,

the latest edition of the referenced document (including any amendments) applies.

GB/T 228.1, Metallic materials -- Tensile testing -- Part 1: Method of test at room

temperature (GB/T 228.1-2021, ISO 6892-1:2019, MOD)

GB/T 228.2, Metallic materials -- Tensile testing -- Part 2: Method of test at elevated

temperature (GB/T 228.2-2015, ISO 6892-2:2011, MOD)

GB/T 5185, Welding and allied processes -- Nomenclature of processes and

reference numbers (GB/T5185-2005, ISO 4063:1998, IDT)

3 Terms and definitions

There are no terms or definitions that require definition in this document.

4 Symbols and instructions

The symbols used in the transverse tensile test and their corresponding descriptions are

shown in Table 1. These symbols are used in Figures 1 to 4.

specimen is processed, the weld axis is located in the middle of the parallel length of

the specimen.

For small diameter pipes, pipe section specimens may be used (see Figure 3). When no

provisions are made in the relevant application standards or agreements, "small

diameter" means D0 <= 50 mm.