Q345C papa nui 4 * 1219 * 2438mm Steel pā
wehewehe:
Kūlana: GB/T 1591-2018
Papa:Q345B/Q355B, Q345C/Q355C, Q345D/Q355D
Kūlana Hāʻawi: ʻO ka ʻōwili wela
| Papa | 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 |
Nā Pono Mechanical:
| Papa | Ikaika Yeildmin Mpa | Ikaika U'i | ʻO ka elongation | Ho'āʻo Impact | |||
| T i ka mm | Mpa | ||||||
| ≤16 | ＞16 ≤30 | ＞30 | ℃ | Ka hopena/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 |
ʻO Q345C kahi ʻano haʻahaʻa haʻahaʻa haʻahaʻa kiʻekiʻe-ikaika structural steel: (e like me nā papa kahiko ma mua o 88 mau makahiki: 16Mn,
12MnV, 14MnNb, 16MnRe, 18Nb ʻelima mau māka i hui ʻia) ʻO Q ka leka mua o ka pinyin Pākē o ka Pākē.
ʻano "hua", e hōʻike ana i ka ikaika o ka hua 345 ka waiwai kikoʻī o ka ikaika hua: 345MPa ʻO C ma
ʻO ke kua ka hōʻailona maikaʻi o ke kila o kēia pae ikaika, maʻamau i māhele ʻia i A, B, C, D, E a me
nā pae ʻē aʻe (ʻo ke kiʻekiʻe o ka pae, ʻoi aku ka kiʻekiʻe o ka pae) Nānā: ʻAʻole kūpono nā papa ʻelima A, B, C, D, E.
i nā papa kila ʻelima ma mua, akā ʻo nā māka maikaʻi. ʻO ka ʻokoʻa nui ʻo ia nā koi no ka hopena
ʻokoʻa ka ikehu: Q345-A: ʻAʻole koi ʻia ka mana hopena Q345-B: Nā koi no ka ikehu hopena ma ka lumi
ka mahana Q345-C: koi i ka ikehu hopena 0 ℃ Q345-D: pono ka ikehu hopena o -20 ℃ Q345-E: pono
-40 ℃ ikehu hopena Hiki ke ʻike ʻia e hiki ke hoʻohana ʻia nā māka kila ma lalo o nā mahana haʻahaʻa
Ua kūkulu mākou i kahi pilina pili lōʻihi a paʻa me nā mea kūʻai aku ma ka home, e like me Shanghai, Jiangsu,
Zhejiang, Anhui, Shandong, Jiangxi, Qinghai, Liaoning, Hainan a pela aku.
No nā ʻāina ʻē, kā mākou mea kūʻai nui mai Asia Hema, ʻApelika, ʻAmelika Hema e like me Singapore, Vietnam, Palakila, Ghana,
New Zealand, Sepania, Mauritius, Dubai etc.
