Q345C sehlopha sa boholo 4 * 1219 * 2438mm Steel poleiti
Tlhaloso:
E tloaelehileng:GB/T 1591-2018
Kereiti: Q345B/Q355B, Q345C/Q355C, Q345D/Q355D
Boemo ba ho fana: Hot rolling
Kereiti | C | Si | Mn | P | S | Nb | V | Ti | Cr | Ni | Cu | N | Mo | Als |
Q345B | ≤0.20 | ≤0.50 | ≤1.70 | ≤0.035 | ≤0.035 | ≤0.07 | ≤0.15 | ≤0.20 | ≤0.30 | ≤0.50 | ≤0.30 | ≤0.012 | ≤0.10 | / |
Q345C | ≤0.20 | ≤0.50 | ≤1.70 | ≤0.035 | ≤0.030 | ≤0.07 | ≤0.15 | ≤0.20 | ≤0.30 | ≤0.50 | ≤0.30 | ≤0.012 | ≤0.10 | ≥0.015 |
Q345D | ≤0.18 | ≤0.50 | ≤1.70 | ≤0.035 | ≤0.025 | ≤0.025 | ≤0.15 | ≤0.20 | ≤0.30 | ≤0.50 | ≤0.30 | ≤0.012 | ≤0.10 | ≥0.015 |
Thepa ea Mechini:
Kereiti | Yeild Strengthmin Mpa | Matla a tšepe | Elongation | Teko ea Tšusumetso | |||
T ka mm | Mpa | ||||||
≤16 | >16 ≤30 | >30 | ℃ | Impact/J | |||
≥ | |||||||
Q345B | 345 | 325 | 295 | 470-630 | ≥20 | 20 | 34 |
Q345C | 345 | 325 | 295 | 470-630 | ≥21 | 0 | 34 |
Q345D | 345 | 325 | 295 | 470-630 | ≥21 | -20 | 34 |
Q345C ke mofuta oa tšepe ea boleng bo tlase ea alloy e matla haholo: (e tsamaellanang le limaraka tsa khale pele ho lilemo tse 88: 16Mn,
12MnV, 14MnNb, 16MnRe, 18Nb lihlopha tse hlano li kopantsoe) Q ke lengolo la pele la pinyin ea Sechaena ea Machaena
tlhaku “kotulo”, e bontšang matla a chai 345 ke boleng bo khethehileng ba matla a tlhahiso: 345MPa The C at
ka morao ke letšoao la boleng ba tšepe ea boemo bona ba matla, ka kakaretso e arotsoe ka A, B, C, D, E le
maemo a mang (a phahame, a phahame) Ela hloko: Limaraka tse hlano A, B, C, D, E ha li lumellane.
ho limaraka tse hlano tse fetileng tsa tšepe, empa limaraka tsa boleng. Phapang e kholo ke hore litlhoko tsa tšusumetso
matla a fapane: Q345-A: Matla a amang ha a hlokehe Q345-B: Litlhokahalo tsa matla a matla ka phapusing
mocheso Q345-C: o hloka 0℃ tšusumetso ea matla Q345-D: e hloka matla a tšusumetso ea -20℃ Q345-E: e hloka
-40 ℃ matla a tšusumetso Ho ka bonoa hore limaraka tse latelang tsa tšepe li ka sebelisoa ka mocheso o tlase
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