材料怎么分类钢材

斗破苍穹

钢材是钢结构的核心载体，材料选型直接决定结构安全、耐久性与经济性。当前主流结构用钢为 Q235B、Q355B、Q355C 及低合金高强钢，高层建筑与大跨场馆优先选用 Q355 及以上级别，低温环境需选用冲击韧性合格的低温钢。
https://vk.com/topic-238822187_63478608
https://vk.com/topic-238805258_62527531
https://vk.com/topic-238834949_62837371
https://vk.com/topic-238772816_62389291
https://vk.com/topic-238834983_62282554
https://vk.com/topic-238792950_63152026
https://vk.com/topic-238768823_62282530
https://vk.com/topic-238766120_63151996
https://vk.com/topic-238768873_62282518
https://vk.com/topic-238822187_63478541
https://vk.com/topic-238805258_62527456
https://vk.com/topic-238834949_62837308
https://vk.com/topic-238772816_62389221
https://vk.com/topic-238834983_62282485
https://vk.com/topic-238792950_63151961
https://vk.com/topic-238768823_62282461
https://vk.com/topic-238766120_63151928
https://vk.com/topic-238822187_63478464
https://vk.com/topic-238805258_62527370
https://vk.com/topic-238834949_62837225
https://vk.com/topic-238834983_62282417
https://vk.com/topic-238792950_63151901
https://vk.com/topic-238768778_62527346
https://vk.com/topic-238768823_62282400
https://vk.com/topic-238766120_63151872
https://vk.com/topic-238822187_63478400
https://vk.com/topic-238834949_62837166
https://vk.com/topic-238834983_62282346
https://vk.com/topic-238792950_63151835
https://vk.com/topic-238803161_63685985
https://vk.com/topic-238768778_62527278
https://vk.com/topic-238768823_62282325
https://vk.com/topic-238766120_63151804
https://vk.com/topic-238822187_63478329
https://vk.com/topic-238834949_62837085
https://vk.com/topic-238834983_62282275
https://vk.com/topic-238792950_63151772
https://vk.com/topic-238803161_63685921
https://vk.com/topic-238768778_62527197
https://vk.com/topic-238768823_62282246
https://vk.com/topic-238766120_63151732
https://vk.com/topic-238822187_63478259
https://vk.com/topic-238834949_62837012
https://vk.com/topic-238834983_62282198
https://vk.com/topic-238792950_63151700
https://vk.com/topic-238803161_63685863
https://vk.com/topic-238768778_62527130
https://vk.com/topic-238768823_62282178
https://vk.com/topic-238766120_63151672
https://vk.com/topic-238822187_63478197
https://vk.com/topic-238834949_62836930
https://vk.com/topic-238834983_62282136
https://vk.com/topic-238792950_63151632
https://vk.com/topic-238803161_63685815
https://vk.com/topic-238831076_62388904
https://vk.com/topic-238768778_62527050
https://vk.com/topic-238768823_62282115
https://vk.com/topic-238766120_63151606
https://vk.com/topic-238822187_63478135
https://vk.com/topic-238834949_62836849
https://vk.com/topic-238834983_62282071
https://vk.com/topic-238792950_63151572
https://vk.com/topic-238803161_63685758
https://vk.com/topic-238831076_62388838
https://vk.com/topic-238768778_62526968
https://vk.com/topic-238768823_62282058
https://vk.com/topic-238766120_63151542
https://vk.com/topic-238822187_63478061
https://vk.com/topic-238834949_62836779
https://vk.com/topic-238834983_62282018
https://vk.com/topic-238792950_63151509
https://vk.com/topic-238803161_63685698
https://vk.com/topic-238831076_62388774
https://vk.com/topic-238768778_62526890
https://vk.com/topic-238766120_63151481
https://vk.com/topic-238822187_63477993
https://vk.com/topic-238834949_62836694
https://vk.com/topic-238834983_62281962
https://vk.com/topic-238792950_63151440
https://vk.com/topic-238803161_63685622
https://vk.com/topic-238831076_62388711
https://vk.com/topic-238768778_62526796
https://vk.com/topic-238822187_63477930
https://vk.com/topic-238834949_62836636
https://vk.com/topic-238834983_62281892
https://vk.com/topic-238792950_63151379
https://vk.com/topic-238803161_63685554
https://vk.com/topic-238831076_62388664
https://vk.com/topic-238768778_62526726
https://vk.com/topic-238766092_62642516
https://vk.com/topic-238822187_63477874
https://vk.com/topic-238834949_62836566
https://vk.com/topic-238834983_62281839
https://vk.com/topic-238792950_63151311
https://vk.com/topic-238803161_63685494
https://vk.com/topic-238831076_62388605
https://vk.com/topic-238768778_62526647
https://vk.com/topic-238766092_62642455
https://vk.com/topic-238822187_63477807
https://vk.com/topic-238834949_62836499