Q345C qib loj 4 * 1219 * 2438mm Steel phaj
Nqe lus piav qhia:
Txuj: GB / T 1591-2018
Qib: Q345B/Q355B, Q345C/Q355C, Q345D/Q355D
Deliver Condition: Kub dov
| Qib | C | Si | Mn | P | S | Nb | V | Ti | Cr | Ni | Cu | N | Mo | Als |
| q345 ib | ≤ 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 | / |
| qw 345c | ≤ 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 |
| qw 345d | ≤ 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 |
Mechanical Properties:
| Qib | Yeild zogkuv Mpa | Tensile zog | Elongation | Impact Test | |||
| T hauv mm | Mpa | ||||||
| ≤16 | ＞ 16 ≤ 30 | ＞ 30 | ℃ | Impact/J | |||
| ≥ | |||||||
| q345 ib | 345 | 325 | 295 | 470-630 : kuv | ≥ 20 | 20 | 34 |
| qw 345c | 345 | 325 | 295 | 470-630 : kuv | ≥ 21 | 0 | 34 |
| qw 345d | 345 | 325 | 295 | 470-630 : kuv | ≥ 21 | -20 | 34 |
Q345C yog hom qis-alloy high-strength steel structural steel: (xws li cov qib qub ua ntej 88 xyoo: 16Mn,
12MnV, 14MnNb, 16MnRe, 18Nb tsib qib merged) Q yog thawj tsab ntawv ntawm Suav pinyin ntawm Suav
cim "yield", qhia lub zog ntawm yield 345 yog tus nqi tshwj xeeb ntawm yield zog: 345MPa Lub C ntawm
sab nraub qaum yog cov cim qib zoo ntawm cov hlau ntawm qib no, feem ntau muab faib ua A, B, C, D, E thiab
Lwm qib (theem siab dua, qib siab dua) Ceeb toom: tsib qib A, B, C, D, E tsis sib haum
mus rau tsib qib steel yav dhau los, tab sis qib zoo. Qhov sib txawv tseem ceeb yog qhov yuav tsum muaj rau kev cuam tshuam
Lub zog sib txawv: Q345-A: Kev cuam tshuam lub zog tsis tas yuav Q345-B: Kev xav tau rau kev cuam tshuam lub zog ntawm chav
Kub Q345-C: xav tau 0 ℃ cuam tshuam lub zog Q345-D: yuav tsum muaj kev cuam tshuam lub zog ntawm -20 ℃ Q345-E: yuav tsum tau
-40 ℃ cuam tshuam lub zog Nws tuaj yeem pom tias cov qib steel hauv qab no tuaj yeem siv rau qhov kub thiab txias
Peb tau tsim lub sijhawm ntev thiab ruaj khov kev sib raug zoo nrog cov neeg siv khoom hauv tsev, xws li Shanghai, Jiangsu,
Zhejiang, Anhui, Shandong, Jiangxi, Qinghai, Liaoning, Hainan thiab lwm yam.
Rau txawv teb chaws, peb cov neeg siv khoom tseem ceeb los ntawm South Asia, Africa, South America xws li Singapore, Nyab Laj, Brazil, Ghana,
New Zealand, Spain, Mauritius, Dubai thiab lwm yam.
