| Teem nqi | Tshuaj lom neeg muaj pes tsawg leeg (%) | ||||
| C | Mn ntau dua lossis sib npaug | Si | P | S | |
| ASTM A515 Qib 65 (A515Gr65) | 0.28-0.33 | 0.98 | 0.13-0.45 | 0.035 | 0.035 |
| Teem nqi | Cov Cuab Yeej Cuab Yeej Cuab Yeej | ||||
| Tensile lub zog (mpa) | Yield zog (mpa) | % Elongation nyob rau hauv 2 . (50 hli) min | Kev cuam tshuam kev ntsuas kub (degree) | ||
| ASTM A515 Qib 65 (A515Gr65) | 450-585 | 240 | 23 | -20,40,-60 | |
Q1:Qib 65 tau tsim nyog rau cov kev pabcuam hauv qab no -30 degree?
Tsawg-cov ntawv pov thawj kub:
Txheem MDMT:{{0 {}}℃(nrog ntsuas qauv txheem)
Txuas Ntxiv Mdmt Xaiv:
-45 degree:Yuav tsum muaj ntau dua lossis sib npaug ntawm 34J ntawm kev sim ntsuas kub
-60 degree:Xav tau nplua cov kev coj ua (Astm tsis muaj .8+) + ntau dua lossis sib npaug nrog {{3} degree
Metallurgical Controls:
Aluminium KhoRau cov nplej ua kom zoo
Ultra-Low Sulphur(Tsawg dua los yog sib npaug rau 0.008%) nrog cov calcium hloov kho
Q2:Dab tsi yog qhov yuav tsum tau vuam cov txheej txheem rau cov ntawv tseem ceeb?
Vuam Surcolol:
Preheat: 75-125°C for thickness >25mm
Cov tub lim hlau:AWS E7018 (SMAW), ER70S -6 (gmaw)
Interpass tswj:Tsawg dua los yog sib npaug nrog 250 degree
Kev kho mob weld:
Pwhal: Required for thickness >32mm ({595-650℃× 1hr / 25mm)
Hardness tswj:Tsawg dua los yog sib npaug rau 225 hb nyob rau hauv haz (ib nace mr0175)
Q3:Thaum twg qib 65 muab kev ua tau zoo ntawm kev ua tau zoo li cas?
| Chaw ua uas tsis tau haus | Gr .65 | Gr .60 | Gr .70 |
|---|---|---|---|
| Paib lub zog | 240 MPa | 220 MPA | 260 MPa |
| Tus nqi them nqi | 10% dhau gr .60 | Lub hauv paus | 15% hla gr .65 |
| Zoo tshaj plaws rau | Mid-siab nkoj | Tsawg nqi siv dav dav dav dav | Daim Ntawv Thov Kev Nyuaj Siab |
Q4:Dab tsi yog qhov kev lag luam ua ntej ntawm qib 65?
Cov Ntawv Thov Tseem Ceeb:
Lng Cia Tso Tsheb Hlau Luam(theem nrab muaj, -50℃rau 50 degree)
Tshuaj Tshuab Refe(tsis yog-qaub, tsawg dua los yog sib npaug rau 2.5mpa tsim siab)
Lub Hwj Chim Tsob Nroj Dej Nyab
Cim npe nrov: ASME SA516 Qib 65 rau siab hlab ntsha phaj, Tuam Tshoj ASME SA516 qib 65 rau siab lub nkoj phaj tsim, cov chaw muag khoom, Hoobkas
