GB/T 37400.15-2019 English PDF

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GB/T 37400.15-2019: Heavy mechanical general technical specification -- Part 15: Nondestructive test of steel forgings
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Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 37400.15-2019	678	Add to Cart	1 days	Heavy mechanical general technical specification -- Part 15: Nondestructive test of steel forgings	Valid

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GB/T 38238   GB/T 37400.5   GB/T 37122   GB/T 37400.18   GB/T 37400.17   GB/T 37400.11   

Basic data

Standard ID: GB/T 37400.15-2019 (GB/T37400.15-2019)
Description (Translated English): Heavy mechanical general technical specification -- Part 15: Nondestructive test of steel forgings
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J04
Classification of International Standard: 25.010
Word Count Estimation: 34,360
Date of Issue: 2019-05-10
Date of Implementation: 2019-12-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 37400.15-2019: Heavy mechanical general technical specification -- Part 15: Nondestructive test of steel forgings

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Heavy mechanical general technical specification--Part 15. Nondestructive test of steel forgings ICS 25.010 J04 National Standards of People's Republic of China General technical conditions for heavy machinery Part 15. Non-destructive testing of forged steel parts Part 15. Nondestructivetestofsteelforgings Published on.2019-05-10 2019-12-01 implementation State market supervision and administration China National Standardization Administration issued

Content

Foreword III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 General requirements 2 4.1 Selection Principle 2 4.2 Detection File 2 4.3 Testing staff 3 5 Ultrasonic testing and its quality level 3 5.1 Inspection basis 3 5.2 Terms of Agreement 3 5.3 Preparation of test procedures 3 5.4 Detection System 4 5.5 Surface Status 5 5.6 Detection timing 5 5.7 Detection 5 5.8 Detection sensitivity 5 5.9 Determination of the probability of forgings 6 5.10 Determination of material attenuation coefficient 6 5.11 Calculation of sound beam diameter 7 5.12 Defect size determination 7 5.13 Record of defects 8 5.14 Quality Level 8 5.15 Test Report 10 6 Magnetic particle testing and its quality level 11 6.1 Inspection basis 11 6.2 Agreement clause 11 6.3 Safety and Environmental Requirements 11 6.4 Detection surface requirements 11 6.5 Inspection period 11 6.6 Equipment and equipment 11 6.7 Detection method 12 6.8 Magnetization 13 6.9 Magnetization parameters 14 6.10 How to use the sensitivity test strip 16 6.11 Magnetic field strength 17 6.12 Application of magnetic powder and magnetic suspension 17 6.13 Observation conditions 17 6.14 Demagnetization 17 6.15 Re-inspection 17 6.16 Magnetic Trace Classification 17 6.17 Quality Level 18 6.18 Inspection report 19 7 Penetration testing and its quality rating 19 7.1 Inspection basis 19 7.2 Test surface requirements 19 7.3 Testing materials 19 7.4 Comparison test block 19 7.5 Classification and selection of penetration test methods 20 7.6 Detection 20 7.7 Trace classification 22 7.8 Recording limits and quality levels 23 7.9 Inspection report 24 Appendix A (Normative Appendix) Forging steel V-groove DAC detection method and quality acceptance requirements 25 Appendix B (Normative) Common Sensitivity Test Strips (Block) 27

Foreword

GB/T 37400 "General Technical Conditions for Heavy Machinery" is divided into 16 parts. --- Part 1. Product inspection; --- Part 2. Flame cutting parts; ---Part 3. Welded parts; ---Part 4. Cast iron parts; ---Part 5. Steel castings; ---Part 6. Non-ferrous metal castings; ---Part 7. Repair welding of steel castings; ---Part 8. Forgings; ---Part 9. Machining parts; --- Part 10. Assembly; --- Part 11. piping; --- Part 12. Painting; --- Part 13. Packaging; ---Part 14. Non-destructive testing of steel castings; ---Part 15. Non-destructive testing of forged steel parts; --- Part 16. Hydraulic system. This part is the 15th part of GB/T 37400. This part is drafted in accordance with the rules given in GB/T 1.1-2009. This part is proposed and managed by the National Technical Committee for Metallurgical Equipment Standardization (SAC/TC409). This section drafted by. Erzhong (Deyang) Heavy Equipment Co., Ltd., Yizhong Group Dalian Engineering Technology Co., Ltd., MCC Shaanxi Heavy Industry Equipment Co., Ltd., Taiyuan Heavy Industry Co., Ltd., China National Heavy Machinery Research Institute Co., Ltd. Drafters of this section. Yang Lan, Shao Yimin, Xia Juan, Hu Juefan, Jin Jiliang, Li Xuemin, Liu Zhen, Yan Lifeng, Zhang Hui, Xu Changqing, Fan Yuke. General technical conditions for heavy machinery Part 15. Non-destructive testing of forged steel parts

1 Scope

This part of GB/T 37400 specifies the ultrasonic, magnetic powder and penetration testing methods and quality grades of forged steel parts. This section applies to non-destructive testing of forged steel for heavy machinery.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 5097 Non-destructive testing for penetration testing and magnetic particle testing conditions GB/T 9445 Non-destructive testing personnel qualification and certification GB/T 11259 Preparation and verification of steel comparison test blocks for ultrasonic inspection GB/T 12604.1 Non-destructive testing terminology ultrasonic testing GB/T 12604.3 Non-destructive testing terminology penetration test GB/T 12604.5 Non-destructive testing terminology magnetic particle testing GB/T 15822.1 Non-destructive testing - Magnetic particle testing - Part 1. General GB/T 15822.2 Non-destructive testing - Magnetic particle testing - Part 2 GB/T 15822.3 Non-destructive testing - Magnetic particle testing - Part 3 GB/T 18851.2 Non-destructive testing - Part 2. Examination of osmotic materials GB/T 18851.3 Non-destructive testing - Penetration testing - Part 3. Reference test block GB/T 18851.4 Non-destructive testing - Penetration testing - Part 4. Equipment GB/T 18851.5 Non-destructive testing - Penetration testing - Part 5. Penetration testing at temperatures above 50 ° C GB/T 20737 General Terms and Definitions for Nondestructive Testing GB/T 23907-2009 Non-destructive testing magnetic particle testing test piece GB/T 27664.1 Non-destructive testing - Ultrasonic testing equipment - Performance and testing - Part 1 Non-destructive testing - Performance and testing of ultrasonic testing equipment - Part 2. Probes GB/T 27664.3 Non-destructive testing - Performance testing and testing - Part 3. Combined equipment ISO 16811 Non-destructive testing Ultrasonic testing sensitivity and range settings (Non-destructive testing-Ultrasonic testing-Sensitivityandrangesetting)

3 Terms and definitions

GB/T 12604.1, GB/T 12604.3, GB/T 12604.5 and GB/T 20737 and the following terms and definitions apply to This document. 3.1 Non-extended defect reflectorswithnomeasurablesize When the probe moves smoothly, the defect echo falls uniformly in all directions, and the defect maximum echo amplitude is greater than or equal to the defect of the initial recording limit. see picture 1. ......

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