Qib sib npaug rau SA514 Qib E
SA514 Qib Eyog ib qho tshwj xeeb quenched thiab tempered alloy steel nrog txhim kho atmospheric corrosion kuj. Nws "sib npaug" nyob ntawm seb koj puas sib phim nws lub zog, kev tiv thaiv corrosion, lossis ob qho tib si.
ASTM A514 Qib E sib raug rau thoob ntiaj teb quenched thiab tempered siab -lub zog steels, xav txog nws cov muaj pes tsawg leeg (xws li, siab Cr-Mo rau toughness) thiab cov khoom (yield ~ 620-}690 MPa, tensile 690-895 MPa, txhim khu kev cuam tshuam qis-temp. Cov npe yog txwv rau qhov sib npaug ncaj qha rau kev siv cov qauv. Cov lus hauv qab no suav nrog cov qauv tseem ceeb hauv ib lub tebchaws / cheeb tsam, tsom mus rau qhov kev sib tw raug.
|
Lub teb chaws / Cheeb Tsam |
Txuj |
Qib sib npaug |
Key Matching Properties |
|---|---|---|---|
|
Teb chaws USA |
ASTM A514 / ASTM A517 Cov Lus Qhia Tshwj Xeeb |
Qib E |
Lub hauv paus: Q&T qis- alloy, 100 ksi tawm los mus txog 2.5", superior qis -temp cuam tshuam rau -60℃F, weldable lug. |
|
Teb chaws Europe (General) |
TS EN 10025-6 |
S690 qw |
Quenched/tempered zoo - nplej; 690 MPa tawm los, tensile 770-940 MPa, elongation Ntau dua lossis sib npaug li 14%, cuam tshuam ntawm -40 degree. |
|
Lub teb chaws Yelemees |
DIN EN 10025-6 / SEW 092 |
S690QL / STE690V / QStE690TM (1.0966) |
Siab -lub zog Q&T; 690 MPa tawm los, 235-295 HB hardness, Cr-Mo alloyed rau txias toughness. |
|
Fabkis |
NF EN 10025-6 / NF A36-231 |
S690QL / E690D / E690TR |
Sib npaug rau EN; Lub zog sib npaug, cuam tshuam ntawm -20℃txog -40 degree, haum rau cov tshuab ua haujlwm hnyav. |
|
Ltalis |
TS EN 10025-6 |
S690 qw |
Ua ke nrog EN; Q&T zoo - nplej, puas ntsoog-resistant, tensile 770-940 MPa. |
|
UK |
TS EN 10025-6 / BS 4360 |
S690 QL / 75F70 |
Rau EN; 690 MPa tawm los, zoo ductility rau txuas hniav, txhim kho qis -temp zog. |
|
Nyiv |
JIS G3128 |
SHY685 / SHY685N |
Siab-yield Q&T welded steel; 685 MPa tawm los, tensile 780-930 MPa, tsis tshua muaj kub toughness nrog V alloys. |
|
Tuam Tshoj |
GB/T 16270 |
Q690D / Q690E |
Tsawg- alloy siab- zog Q&T; 690 MPa tawm los, -20℃rau -40℃cuam tshuam, zoo li Cr-Mo cov ntsiab lus. |
|
Australia/New Zealand |
AS/NZS 3678 |
Qib 700 / 700L15 |
Qauv Q&T phaj; 700 MPa tawm los, tensile 790-930 MPa, qis-kub variant rau weldability. |
|
Russia |
GOST 19281 |
15Kh2NMFA / 14G2AFD |
Tsawg- alloy txias-resistant; 590-690 MPa tawm los, tensile 700-850 MPa, cuam tshuam rau -60 degree. |
|
Is Nrias teb |
TIAB SA 2062 |
E690 |
Siab - lub zog muaj zog Q&T; 690 MPa tawm los, elongation 14-18%, kev xaiv qis. |
|
Sweden |
TS EN 10025-6 |
S690 qw |
Kev sib tw EN; siab -yield nrog txias toughness, siv nyob rau hauv structural engineering. |
|
Canada |
CSA G40.21 |
700 QT / 700W |
Siab -lub zog quenched/tempered; 700 MPa tawm los, qis-temp cuam tshuam, sib npaug rau cov qauv welded. |
Tshawb xyuas nrog daim ntawv pov thawj zeb rau daim ntawv thov kev sib raug zoo.
Yuav Ua Li Cas Xaiv Cov Qib sib npaug: Daim Ntawv Qhia Kev Txiav Txim
| Yog tias koj qhov kev xav tau yog ... | Thiab txoj cai tswjfwm yog ... | Ces qhia... |
|---|---|---|
| 100ksi zog + Toughness | Teb chaws Europe (Eurocode) | EN 10025-6 S690QL |
| 100 ksi + Corrosion Resistance | US / AASHTO (rau txuas hniav) | ASTM A709 Qib 100W |
| Corrosion Resistance + Lub zog nruab nrab | Teb Chaws Asmeskas / General Construction | ASTM A588 Qib K (Plate) |
| General 100 Ksi Q&T Steel | International / Tsis code-bound | ASTM A514 Qib F (qib ntau dua, tab sis poob corrosion kuj ntawm Qib E) |
Lus Cim Tseem Ceeb ntawm SA514 Qib E's Corrosion Resistance
Nws cov corrosion kuj (~ 2x carbon steel) yog tsawg dua li cov huab cua huab cua zoo li A588 lossis A709-W (~ 4-6x). Qib E feem ntau raug xaiv rau cov ntawv thov uas qee qhov kev txhim kho ntawm cov hlau tsis tshua muaj txiaj ntsig, tab sis thawj tus tsav tsheb yog nws lub zog siab thiab hardenability hauv cov ntu tuab.
Cov ntsiab lus:Tsis muaj qhov zoo meej, ib qho sib npaug thoob ntiaj teb rau SA514 Qib E. Qhov sib tw ze tshaj plaws yog A709 Qib 100W (rau txuas txuas) lossis S690QL . Ib txwm pib qhov kev xaiv zaum kawg ntawm cov ntawv pov thawj Mill Test Reports txhawm rau txheeb xyuas cov khoom tshwj xeeb uas koj tus tsim xav tau, tshwj xeeb tshaj yog tias kev tiv thaiv corrosion yog qhov tseem ceeb.
Dab tsi yog qhov txawv ntawm ASTM A514 GR E ntawm lwm qib?
GR E ua tau zoo nyob rau hauv qis- qhov kub thiab txias, ua rau nws haum rau qhov chaw txias nrog cov txiaj ntsig txog li 100 ksi hauv qab 2.5 ntiv tes.
Puas yog vuam A514 GR E ncaj nraim?
Yog lawm, nrog preheating thiab muab cov fillers kom tsis txhob tawg -peb daim hlau yog optimized rau nws.
Daim ntawv thov tseem ceeb phaj.
Offshore rigs, mining nyob rau hauv cov cheeb tsam txias, thiab cov qauv uas yuav tsum tau muaj kev cuam tshuam los ntawm lub temps qis.
Tag nrho cov specification thiab cov ntsiab lus muaj nyob rau ntawm kev thov. Cov ntaub ntawv saum toj no yog muab rau kev taw qhia nkaus xwb. Rau kev tsim tshwj xeeb thov hu rau peb cov neeg ua haujlwm muag khoom.
