If you need a between GB/T 16270 and EN 10025-6 or ASTM equivalent grades
| GB/T 16270 | International Equivalent | Notes | | :--- | :--- | :--- | | | S460Q (EN 10025-6), A514 Grade B (ASTM) | Very close match. | | Q550 | S550Q (EN 10025-6) | Direct mechanical equivalence. | | Q690 | S690Q (EN 10025-6), ASTM A514 Grade Q | The most common interchangeable grade. | | Q960 | S960Q (EN 10025-6) | Niche applications; careful of CEV differences. |
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: Many public libraries, especially those with a focus on engineering or technology, offer access to standards databases, which might include Chinese national standards. gb t 16270 pdf
: Generally restricted below 0.20% to prevent brittle welds.
It is crucial to ensure you are using the 2009 version to comply with the current national requirements. 5. Summary of Key Differences from Previous Standards The 2009 revision made the following key changes:
Bridges, high-rise buildings, and large-span structures. If you need a between GB/T 16270 and
The standard categorizes steel plates using the "Q" prefix, which stands for Qingye (yield strength in Chinese pinyin). The number following the "Q" indicates the minimum yield strength required for the material in megapascals (MPa).
: Specifically covers high-strength structural steel plates delivered in quenched and tempered (Q+T) conditions. Thickness Limits : Applicable to plates with a thickness not exceeding (extended from 100mm in the previous version). Reference Standards
: Niobium, Vanadium, Titanium, and Boron are added in minute percentages to refine grain structure during heat treatment. | | Q960 | S960Q (EN 10025-6) |
Whether you require a direct to an EN or ASTM standard
is a Chinese national standard that specifies technical requirements for high-performance structural steel plates. The current active version is GB/T 16270-2009 , which superseded the older 1996 version. Chinese Standard GB/T Key Specifications of GB/T 16270-2009
: Added for solid solution strengthening and deoxidation.