Qhov tso cai rau kev ntxhov siab rauSA516 GR70yog kwv yees li 138 MPa (20 ksi) ntawm chav tsev kub, ib qho ASME Tshooj VIII, nyob ntawm qhov kub thiab qhov tsim.GNEE steel's ASME SA 516 GR 70 daim hlau ua kom muaj kev ua raws li kev siv lub nkoj siab. Kab lus no piav qhia txog kev ntxhov siab thiab nws qhov tseem ceeb.
Nkag siab Tso Cai Stress ntawm SA516 GR70 steel
Kev ntxhov siab tso cai yog qhov kev ntxhov siab siab tshaj plaws uas cov khoom siv tuaj yeem tiv taus kev nyab xeeb, suav tias yog ib feem ntawm tensile/yield zog nrog rau kev nyab xeeb. Rau SA516 GR70, ASME Tshooj VIII muab cov txiaj ntsig raws li qhov kub thiab txias:
|
Kub (degree) |
Tso cai Stress (MPa) |
Sau ntawv |
|---|---|---|
|
20 (Room Temp) |
138 |
Raws li 1/3.5 tensile zog (485 MPa). |
|
200 |
134 |
Txo me ntsis vim muaj kev cuam tshuam thermal. |
|
400 |
119 |
Haum rau siab -kub cov hlab ntsha. |
Tej yam cuam tshuam rau kev nyuaj siab
- Kub: Kub siab dua txo cov kev ntxhov siab.
- Tsim CodeASME Tshooj VIII vs API 650.
- Phaj Thickness: Cov phaj tuab tuaj yeem muaj qhov hloov kho.
ASME SA 516 GR.70-55 Tshuaj muaj pes tsawg leeg
| Tshuaj muaj pes tsawg leeg | Qhov siab tshaj plaws C% rau thickness t (mm) | Mn% rau Thickness t (hli) |
Si% | P% max |
S% max |
||||
|---|---|---|---|---|---|---|---|---|---|
| 6-12.5 hli | 12.5-25 hli | 25-50 hli | >50 hli | Tsawg dua los yog sib npaug li 12.5mm | >12.5mm 3 | ||||
| ASME A516 Gr 55 |
0.18 | 0.20 | 0.22 | 0.25 | 0.55-0.98 | 0.60-1.30 | 0.13-0.45 | 0.035 | 0.035 |
| ASME A516 Gr 60 | 0.21 | 0.23 | 0.23 | 0.25 | 0.6-0.9 | 0.80-1.20 | 0.13-0.45 | 0.035 | 0.035 |
| ASME A516 Gr 65 |
0.24 | 0.26 | 0.26 | 0.28 | 0.85-1.20 | 0.85-1.20 | 0.13-0.45 | 0.035 | 0.035 |
| ASME A516 Gr 70 |
0.27 | 0.28 | 0.28 | 0.30 | 0.85-1.20 | 0.85-1.20 | 0.13-0.45 | 0.035 | 0.035 |
ASME SA 516 GR.70-55 Mechanical Property
| Mechanical Property | Tensile zog (MPa) |
Yam tsawg kawg nkaus tawm los zog (MPa) |
Yam tsawg kawg nkaus elongation (%) ntsuas qhov ntev | |
|---|---|---|---|---|
| 50 hli | 200 hli | |||
| ASME A516 Gr 55 |
380-515 | 205 | 27 | 23 |
| ASME A516 Gr 60 | 415 - 550 | 220 | 25 | 21 |
| ASME A516 Gr 65 |
450 - 585 | 240 | 23 | 19 |
| ASME A516 Gr 70 |
485 - 620 | 260 | 21 | 17 |
Sib piv nrog Lwm Cov Qib SA 516
|
Qib |
Cov pa roj carbon monoxide (Kev ntsuas kub, max %) |
Yield zog (min, ksi / MPa, Tsawg dua lossis sib npaug li 25 mm) |
Tensile zog (ksi / MPa) |
Qhov ceev (kg / m³) |
Daim ntawv thov |
|---|---|---|---|---|---|
|
SIB 516 Gr 55 |
0.18 |
30/205 |
55-75/380-515 |
7850 |
Tsawg- cov hlab ntsha siab |
|
TIAB SA 516 Gr 60 |
0.21 |
32/220 |
60-80/415-550 |
7850 |
Nruab nrab - lub tank siab |
|
TIAB SA 516 Gr 65 |
0.24 |
35/240 |
65-85/450-585 |
7850 |
Siab - cov nkoj muaj zog |
|
TIAB SA 516 Gr 70 |
0.27 |
38/260 |
70-90/485-620 |
7850 |
Siab - cov hlab ntsha siab |
Ntsiab Lus: Txhua qib SA 516 sib koom tib qhov ntom ntom (7850 kg / m³) vim muaj qhov sib xws qis- alloy muaj pes tsawg leeg, tab sis SA 516 Gr 70 muaj lub zog siab dua Gr 55, Gr 60, thiab Gr 65, ua rau nws haum rau siab dua - cov ntawv thov siab.
Vuam thiab kev kho cua sov ntawm SA 516 Gr 70 siab hlab ntsha hlau
SA 516 Gr 70 ntom tsis cuam tshuam rau nws cov weldability:
Vuam: Compatible with SMAW, GMAW, SAW per ASME Section IX. Preheating (149-204°C for >38 mm) tiv thaiv kev tawg; PWHT (593-649 degree) rau kev ntxhov siab hauv cov ntu tuab.
Cov khoom sivE7018 electrodes rau SMAW; ER70S-6 GMAW
Cov ntsiab lus tsis tshua muaj carbon thiab CEV ua kom cov welds muaj zog, txhawb kev ncaj ncees.
Qhov kub thiab txias ntawm SA 516 GR 70
ASME SA 516 GR 70, sib npaug rau ASTM A 516 GR 70, yog tsim los rau cov hlab ntsha siab thiab cov boilers ua haujlwm thoob plaws qhov kub thiab txias. Raws li ASME Boiler thiab Pressure Vessel Code (BPVC) Tshooj VIII, Division 1, cov khoom siv qhov kub thiab txias yog:
Siab Limit: Mus txog 538℃(1000℃F) nyob rau hauv cov xwm txheej zoo, haum rau siab - kub boilers thiab siab hlab ntsha. Tshaj 538 degree, creep thiab thermal degradation yuav tshwm sim, yuav tsum tau alloy steels zoo li SA 537.
Txo qis: nqes mus rau -46℃(-50℃F), nrog rau qhov tsis zoo ntawm qhov tsis zoo (27 J Charpy V-notch cuam tshuam lub zog ntawm -46 degree), ua rau nws zoo tagnrho rau kev siv kub tsawg, xws li cov kav dej arctic lossis cryogenic cia.
GNEE steel's SA 516 GR 70 daim hlau yog qhov qub ntawm 900-950℃kom ua tiav qhov zoo- cov qauv nplej, txhim kho qis- kub toughness thiab high-temperature stability. Rau cov ntawv thov kev pabcuam qaub, peb daim phiaj raug kuaj los ntawm NACE TM0284 kom ntseeg tau tias Hydrogen Induced Cracking (HIC) tsis kam, txuas ntxiv nthuav lawv cov kev siv tau hauv qhov chaw huab cua.
Cov ntawv thov thoob plaws qhov ntsuas kub
SA 516 GR 70's dav qhov kub thiab txias ua rau nws muaj ntau yam rau:
High -Tsub siv:
- Boilers: Ua haujlwm ntawm qhov kub txog li 538℃thiab siab txog li 500 bar, siv hauv kev tsim hluav taws xob thiab cov tshuab cua sov.
- Petrochemical Reactors: Kuaj siab -cov txheej txheem tshuaj kub, feem ntau ua ke nrog ASME SA 516 GR 60.
Tsawg-Tsuas siv kub:
- Arctic Pipelines: Nrog rau -46℃nyob rau hauv cov roj thiab roj pipelines, tshwj xeeb tshaj yog nyob rau hauv qaub kev pab cuam ib puag ncig yuav tsum tau HIC kuj.
- Cryogenic cia: Tank rau liquefied gases, leveraging SA 516 GR 70's notch toughness.
- General Pressure Vessels: Siv nyob rau hauv cov roj thiab roj, petrochemical, thiab tshuaj ua lag luam rau cov hlab ntsha ua hauj lwm nyob rau hauv nruab nrab tej yam kev mob.
GNEE steel khoom siv SA 516 GR 70 daim hlau nyob rau hauv thicknesses ntawm 6mm mus rau 200mm (kev cai mus txog rau 300mm), nrog rau qhov dav txog li 4,500mm thiab ntev mus txog 12,000mm, tailored kom tau raws li qhov project-cov kev cai kub tshwj xeeb.
Hu rau GNEE steel rau ASTM SA516 GR 70 Steel Phaj
GNEE steel yog koj tus khub txhim khu kev qha rau SA516 GR 70 steel phaj, xa cov khoom siab -zoo, ASTM- cov ntaub ntawv ua raws raucov hlab ntsha siab, boilers, thiab cov ntawv thov kev lag luam thoob ntiaj teb. Nrog cov khoom muag dav, thoob ntiaj teb logistics, thiab kev cog lus rau qhov zoo, peb ua kom koj cov haujlwm ua tiav.
Yog xav paub ntxiv los yog muab qhov kev txiav txim, mus saib peb ASTMS A516 GR 70 steel phaj lossis tshawb xyuas cov qib sib xws xws li SA516 Qib 55, SA516 Qib 60, thiab SA516 Qib 65.
Dab tsi yog cov khoom sib npaug rau A516 GR 70?
Cov sib npaug sib npaug suav nrogASME SA516 GR 70, TS EN 10028 P355GH, thiabBS1501 224-490 A & B, haum rau kev siv lub nkoj siab zoo sib xws.
A516 GR 70 piv rau EN 10028 P355GH li cas?
A516 GR 70muaj cov ntsiab lus carbon ntau dua me ntsis (0.27% vs. 0.22%) tab sis qis zog tawm los rau cov phaj nyias piv rauP355GH(355 MPa Tsawg dua lossis sib npaug li 16mm).
Puas muaj ntawv pov thawj rau A516 GR 70?
Yog lawm, Gangsteel muab daim ntawv pov thawj zeb xeem (MTC) thiab txhawb nqa thib peb -kev soj ntsuam tog (SGS, TUV, BV, ABS) rauASTM A516 Qib 70 steel phaj.
Gangsteel puas tuaj yeem tuav cov xaj ntau rau A516 GR 70?
kiag li. Nrog tshaj 5,000 tons hauv Tshuag, peb tshwj xeeb hauvA516 GR 70 steel phajbulk xaj nrog ceev ceev. Tiv tauj peb ntawm peb A516 GR 70 steel phaj.
Dab tsi yog qhov muaj nyob rau A516 GR 70 daim hlau?
Thickness: 6mm-300mm, Dav: 1500mm-4050mm, Ntev: 3000mm-15000mm.
Yog xav paub ntxiv, tshawb xyuas peb ASTM A516 steel phaj qeb.
SA 516 Gr 70 ceev hauv kg/m³ yog dab tsi?
Lub SA 516 Gr 70 ntom yog 7850 kg / m³ (7.85 g / cm³), ua kom cov kev ntsuas qhov hnyav (piv txwv li, 1 m² × 10 mm phaj hnyav 78.5 kg).
SA 516 Gr 70 qhov ntom ntom cuam tshuam li cas rau kev tsim?
SA 516 Gr 70 ntom ntawm 7850 kg / m³ txhawb nqa qhov hnyav ntawm cov hlab ntsha siab thiab cov boilers, kom ntseeg tau cov qauv tsim muaj zog (260 MPa yield) thiab -46℃toughness.
SA 516 Gr 70 piv rau ASME SA 516 Gr 60 li cas?
SA 516 Gr 70 thiab Gr 60 sib koom tib qhov ntom ntom (7850 kg / m³), tab sis Gr 70 muaj cov txiaj ntsig siab dua (260 MPa vs 220 MPa) thiab lub zog tensile (485-620 MPa vs 415-550 MPa) rau cov hlab ntsha siab.
Cov khoom dab tsi ntxiv SA 516 Gr 70 ntom?
SA 516 Gr 70 cov khoom muaj xws li 260 MPa yield, 485-620 MPa tensile lub zog, Ntau dua los yog sib npaug rau 27% elongation, thiab Ntau dua los yog sib npaug rau 27 J ntawm -46 degree, zoo tagnrho rau kev siv siab.
Dab tsi yog SA 516 GR 70 cov khoom siv qib?
SA 516 Gr 70 yogtus qauv specification raws li ASTM rau carbon steel daim hlau feem ntau siv nyob rau hauv welded siab hlab ntsha. Paub txog nws lub zog tensile siab thiab zoo torque toughness, qib no feem ntau yog siv nyob rau hauv nruab nrab mus rau qis kub kev pab cuam.
