ASTM A516 Gr .70}} specification:
Qib:ASME A 516 GR .60 boiler thiab siab hlab ntsha steel hlau
Dav:1250mm -3000 hli
Qhov tuab:{{03 - 200 hli / qhov loj me mus txog 4.000 mm
Ntev:3000mm -11000 hli .
Ntau lawm:Kub-rolled (hr)
Kev Kho Cua Sov:Rolled / Qub / N + T / Qt
Tshuaj Muaj Tshuaj
| C | Si | Mn | P | S | Al | Cr | CU | Ni | Mo | Nb | Ti | V |
| 0.18 | 0.4 | 0.95/1.50 | 0.015 | 0.008 | 0.02 (min) | 0.3 | 0.3 | 0.3 | 0.08 | 0.01 | 0.03 | 0.02 |
Cov Khoom Siv Neeg Kho Tshuab
| Tensile lub zog (ksi) | Paib muaj zog (ksi) | Elongation min,% 200 hli (8 hauv) | Elongation min,% 50 hli (2 hauv) |
| 485-620 (70-90) | 260 (38) | 17 | 21 |
1. Cov ntawv thov tseem ceeb yog dab tsi thiab cov qib ntawm Astm A516 Qib 65?
ASTM A516 Qib 65 feem ntau siv rau:
Siab Hlab Rau Hauv Lub Zog Ntau Tiam (Boilers, Daj Drums)
Cov Khoom Siv Petrochemical Ua
Kev Tso Tsheb Hlau Mob Nruab Nrab
Cov Hluav Taws Xob Tshav Kub Kub Thiab Cov Ntsej
Cov Ntsiab Lus Tseem Ceeb:
Siab dua lub zog-rau-hnyav piv dua qib 55/60
Tswj hwm cov ntsiab lus zoo tsis zoo
Zoo heev Weldability thaum cov txheej txheem tsim nyog tau ua raws
Nqi Them Nqi Rau Nruab Nrab-Siab
2. Yuav ua li cas cov tshuaj lom neeg muaj pes tsawg leeg ntawm qib 65 sib txawv ntawm qib 60?
Ib qho kev sib txawv sib txawv:
Cov ntsiab lus MN siab dua: {0.95-1.45% vs 0.85-1.35% hauv qib 60
Zoo ib yam li cov pa roj carbonion: tsawg dua los yog sib npaug rau 0.25% rau ob qho tib si
Nrov cov Sulphur tswj: tsawg dua los yog sib npaug rau 0.035% rau ob qho tib si
Yeem Microalloying: Qee cov neeg tsim khoom ntxiv NB / V rau cov qoob loo nplej
Qhov no muaj pes tsawg leeg muab:
Ntxiv zog los ntawm cov khoom siv tawv tawv
Tswj Weldability los ntawm kev tswj cov roj carbon sib npaug (feem ntau tsawg dua lossis sib npaug rau 0.43)
3. Yuav ua li cas qib 65 ua hauv cov kev pab kub tsawg piv rau lwm qib?
Cov Hluav Taws Xob Hluav Taws Xob:
Qib Qib 65: Haum rau {-50℃f ({-45}} degree) thaum cuam tshuam kev sim
VS Qib 60: Temp Zoo Li-Temp Kev Ua Tau Zoo Tab sis Lub Zog Siab Tshaj
VS Qib 70: Qib 65 feem ntau muaj qhov zoo dua
VS A537 chav kawm 1: A537 muaj cov kev ua tau zoo dua cryogenic
Cim npe nrov: ASTM A516 Qib 65 rau cov hlab ntsha siab 9, Tuam Tshoj ASTM A516 Qib 65 rau siab ntshauv tsim vessel phaj manufacturers, lwm tus neeg, Hoobkas
