GB/T 37910.1-2019 Non-destructive testing of welds—Acceptance levels for radiographic testing—Part 1:Steel,nickel, titanium and their alloys (English Version)
Non-destructive testing of welds - Acceptance levels for radiographic testing - Part 1: Steel, nickel, titanium and their alloys
1 Scope
This part of GB/T 37910 specifies the acceptance levels for indications from imperfections in butt welds of steel, nickel, titanium and their alloys detected by radiographic testing. If agreed by the parties to the contract, the acceptance levels may be applied to other types of welds or materials.
The acceptance levels are related to welding standards, testing standards, specifications or codes. This part is used to assess whether a weld meets the requirements specified for a weld quality level by comparing the sizes of imperfections permitted by this part with those revealed by a radiograph or figure of the weld when carrying out radiographic testing in accordance with GB/T 3323.1 or GB/T 3323.2.
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 3323.1 Non-destructive testing of welds - Radiographic testing - Part 1: X- and gamma-ray techniques with film (GB/T 3323.1-2019, ISO 17636-1: 2013, MOD)
GB/T 3323.2 Non-destructive testing of welds - Radiographic testing - Part 2: X- and gamma-ray techniques with digital detectors (GB/T 3323.2-2019, ISO 17636-2: 2013, MOD)
GB/T 6417.1 Classification and explanation of imperfections in fusion welded joints (GB/T 6417.1-2005, ISO 6520-1: 1998, IDT)
GB/T 32259 Non-destructive testing of welds - Visual testing of fusion-welded joints (GB/T 32259-2015, ISO 17637: 2003, MOD)
ISO 5817 Welding - Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding excluded) - Quality levels for imperfections
3 Testing technique
Depending on the weld quality level, radiographic testing in accordance with Class A or Class B in GB/T 3323.1 or GB/T 3323.2 shall be carried out, as shown in Table 1.
Foreword i
1 Scope
2 Normative references
3 Testing technique
4 General
5 Acceptance levels
Annex A (Informative) Guide to the imperfections of radiographic testing
Annex B (Informative) Examples for area percentage (%) of imperfections
Annex C (Informative) Calculation of the sum of acceptable imperfection areas
GB/T 37910.1-2019 Non-destructive testing of welds—Acceptance levels for radiographic testing—Part 1:Steel,nickel, titanium and their alloys (English Version)
Standard No.
GB/T 37910.1-2019
Status
valid
Language
English
File Format
PDF
Word Count
7500 words
Price(USD)
150.0
Implemented on
2020-3-1
Delivery
via email in 1 business day
Detail of GB/T 37910.1-2019
Standard No.
GB/T 37910.1-2019
English Name
Non-destructive testing of welds—Acceptance levels for radiographic testing—Part 1:Steel,nickel, titanium and their alloys
Non-destructive testing of welds - Acceptance levels for radiographic testing - Part 1: Steel, nickel, titanium and their alloys
1 Scope
This part of GB/T 37910 specifies the acceptance levels for indications from imperfections in butt welds of steel, nickel, titanium and their alloys detected by radiographic testing. If agreed by the parties to the contract, the acceptance levels may be applied to other types of welds or materials.
The acceptance levels are related to welding standards, testing standards, specifications or codes. This part is used to assess whether a weld meets the requirements specified for a weld quality level by comparing the sizes of imperfections permitted by this part with those revealed by a radiograph or figure of the weld when carrying out radiographic testing in accordance with GB/T 3323.1 or GB/T 3323.2.
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 3323.1 Non-destructive testing of welds - Radiographic testing - Part 1: X- and gamma-ray techniques with film (GB/T 3323.1-2019, ISO 17636-1: 2013, MOD)
GB/T 3323.2 Non-destructive testing of welds - Radiographic testing - Part 2: X- and gamma-ray techniques with digital detectors (GB/T 3323.2-2019, ISO 17636-2: 2013, MOD)
GB/T 6417.1 Classification and explanation of imperfections in fusion welded joints (GB/T 6417.1-2005, ISO 6520-1: 1998, IDT)
GB/T 32259 Non-destructive testing of welds - Visual testing of fusion-welded joints (GB/T 32259-2015, ISO 17637: 2003, MOD)
ISO 5817 Welding - Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding excluded) - Quality levels for imperfections
3 Testing technique
Depending on the weld quality level, radiographic testing in accordance with Class A or Class B in GB/T 3323.1 or GB/T 3323.2 shall be carried out, as shown in Table 1.
Contents of GB/T 37910.1-2019
Foreword i
1 Scope
2 Normative references
3 Testing technique
4 General
5 Acceptance levels
Annex A (Informative) Guide to the imperfections of radiographic testing
Annex B (Informative) Examples for area percentage (%) of imperfections
Annex C (Informative) Calculation of the sum of acceptable imperfection areas
