Cabbirka darajada Q345C 4*1219*2438mm saxan bir ah
Sharaxaad:
Heerka: GB/T 1591-2018
Fasalka: Q345B/Q355B, Q345C/Q355C, Q345D/Q355D
Xaaladda Bixinta: Gariir kulul
| Darajo | 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 |
Guryaha Makaanikada:
| Darajo | Xoogga Yeildmin Mpa | Xoogga Jilicsan | Dheeraynta | Tijaabada Saamaynta | |||
| T ee mm | Mpa | ||||||
| ≤16 | ＞16 ≤30 | ＞30 | ℃ | Saamaynta/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 waa nooc ka mid ah birta qaab dhismeedka hoose ee xoogga sare leh: (oo u dhiganta darajooyinkii hore ee kahor 88 sano: 16Mn,
12MnV, 14MnNb, 16MnRe, 18Nb shan fasal ayaa la isku daray) Q waa xarafka ugu horreeya ee pinyin Shiinaha
dabeecadda "wax-soo-saarka", oo tilmaamaysa xoogga wax-soo-saarka 345 waa qiimaha gaarka ah ee xoogga wax-soo-saarka: 345MPa The C at
dhabarku waa astaanta darajada tayada ee birta heerkan xoogga ah, guud ahaan waxa loo qaybiyaa A, B, C, D, E iyo
heerarka kale (heerka sare, heerka sare) Fiiro gaar ah: Shanta fasal A, B, C, D, E isma dhigmaan
ilaa shantii darajooyinka birta ee hore, laakiin darajooyinka tayada. Farqiga ugu weyni waa in shuruudaha saameynta
Tamartu way kala duwan tahay: Q345-A: Awoodda saamaynta looma baahna Q345-B: Shuruudaha tamarta saamaynta qolka
Heerkulka Q345-C: wuxuu u baahan yahay 0℃ tamarta saamaynta Q345-D: waxay u baahan tahay tamar saamayn ah -20℃ Q345-E: waxay u baahan tahay
-40℃ saamaynta tamarta Waxaa la arki karaa in darajooyinka birta ee soo socda loo isticmaali karo heerkul hoose
Waxaan dhisnay xiriir iskaashi oo muddo dheer ah oo xasilloon oo lala yeesho macaamiisha gudaha, sida Shanghai, Jiangsu,
Zhejiang, Anhui, Shandong, Jiangxi, Qinghai, Liaoning, Hainan iyo wixii la mid ah.
Dibadda, macmiilkayaga ugu weyn ee ka yimid Koonfurta Aasiya, Afrika, Koonfurta Ameerika sida Singapore, Vietnam, Brazil, Ghana,
New Zealand, Spain, Mauritius, Dubai iwm.
