GB/T 19292.2-2018 (English Version) PDF

Standard No.: GB/T 19292.2-2018
Language: Chinese, Available in English version
Release Date: 2018
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 19292.2-2018
Replace: GB/T 19292.2-2003

Scope: This part of GB/T 19292 specifies the corrosion guidance values for metals and alloys exposed to outdoor natural atmosphere for more than 1 year. This section is used in conjunction with GB/T 19292.1. Guidance values give the corrosion rates for standard materials of construction and these data can be used for engineering calculations. Guideline values specify the technical content of each corrosivity class of standard metals. Appendix A gives the calculation example of the maximum corrosion loss of 6 standard corrosion grades with exposure time up to 20 years. The average corrosion rate and steady-state corrosion rate of standard metals corresponding to the six standard corrosion levels at the initial stage of exposure to sunlight are given in Appendix B. Appendix C gives the method of calculating the corrosion loss according to the composition of the steel.

GB/T 19292.2-2018 Referenced Document

GB/T 10123 Corrosion of metals and alloys—Vocabulary*， 2022-04-15 Update
GB/T 19292.1 Corrosion of metals and alloys—Corrosivity of atmospheres—Part 1: Classification, determination and estimation
GB/T 19355.1 Guidelines and recommendations for corrosion protection of steel structures with zinc cladding - Part 1: Basic principles of design and corrosion protection

2018 GB/T 19292.2-2018 Corrosion of metals and alloys.Corrosivity of atmospheres.Part 2: Guiding values for the corrosivity categories
2003 GB/T 19292.2-2003 Corrosion of metals and alloys--Corrosivity of atmospheres--Guiding values for the corrosivity categories