The naming convention for these steel grades uses the prefix "" (representing qu , the first letter of the Chinese pinyin for yield), followed by a number indicating the minimum yield strength in megapascals (MPa), and a quality grade letter (C, D, E, or F). GB/T 16270-2009 English PDF

This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later.