EN 10025-} 2 yog cov qauv Askiv ntawm European, nrog S275J2 muab lub zog zoo, weldability, thiab kev cuam tshuam ntawm -20 degree.
Kab lus no muab cov txheej txheem tshaj tawm ntawm BS EN 10025-2 S275J2 qauv hlau, cov ntaub ntawv siv cov khoom siv, thiab cov txiaj ntsig, muab cov khoom siv muaj txiaj ntsig, muab cov khoom siv muaj txiaj ntsig, muab cov khoom siv, cov khoom siv, cov ntaubnators, thiab cov kws tshaj lij tshwj xeeb.
Tshuaj Muaj Tshuaj
Cov tshuaj lom neeg muaj pes tsawg leeg ntawm EN 10025-2 S275J2 tau nruj nreem kom ua tiav cov khoom siv zoo thaum tswj kev vam meej thiab muaj peev xwm. Cov lus hauv qab no piav qhia cov raug nplua per Din en 10025-2:
|
Lub ntsiab |
Kev sib xyaw (% los ntawm qhov hnyav) |
|---|---|
|
Carbon (c) |
0.18 Max |
|
Manganese (mn) |
1.000 Max |
|
Phosphorus (p) |
0.030 max |
|
Sulphur (s) |
0.025 max |
|
Silicon (si) |
0.55 max |
|
Tooj Liab (Cu) |
0.55 max |
|
Nitrogen (n) |
0.012 max |
|
Hlau (FE) |
Seem |
Cov ntawv tseem ceeb:
Pa roj carbon: Txwv rau 0.18% los xyuas kom zoo weldability thiab tiv thaiv brittleness, tseem ceeb rau cov ntawv thov kev tsim qauv.
Tus kws dai txiv manganese: Txog li 1.50% txhim kho lub zog thiab tawv yam tsis muaj kev hloov pauv.
Phosphorus thiab leej faj: Cov qib qis (0.030% P, 0.025% s) txhim kho kev cuam tshuam, tshwj xeeb tshaj yog nyob rau hauv subzero kub (sim ntawm -20℃rau J2).
Silicon thiab tooj liab: Pab txhawb rau atmospheric corrosion tsis kam, ua rau 10025-2 S275J2 tsim nyog rau sab nraum zoov qauv.
Gnee; 'S en 10025-2 S275J2 Cov Phiaj Xwm Tshuaj Lom Zem Tshuaj Kom Sib Ntsib Sib Tham kom tau ntsib DIN en 10025-2, nrog kev xaiv rau kev sim ntxiv xws li kev tshuaj ntsuam ntxiv.
Cov Khoom Siv Neeg Kho Tshuab
n 10025-2 S275J2 Muaj cov khoom siv neeg kho kom zoo, ua rau nws muaj ntau yam rau kev ua lag luam qauv. Cov lus hauv qab no ua rau nws cov khoom tseem ceeb rau ib pawg DIN EN 10025-2 (rau daim hlau mus txog 16 hli tuab):
|
Ntiag tug |
Tus nqi |
|---|---|
|
Yield zog (min) |
275 mpa |
|
Lub zog tensile |
410-560 MPa |
|
Elongation (Min, 200 hli) |
20% |
|
Kev cuam tshuam cov tawv (charpy v - Itch) |
27 J ntawm -20 degree |
|
Hardness (HB, raug) |
130-180 HB |
Tuab ntaus
|
Nominal tuab t (hli) |
Kam rau siab (hli) sab saud / qis dua |
|---|---|
|
t tsawg dua los yog sib npaug rau 3 |
±0.3 |
|
3 |
±0.4 |
|
5 |
±0.5 |
|
8 |
±0.6 |
|
15 |
±0.8 |
|
25 |
±1.0 |
|
40 |
±1.2 |
|
80 |
±1.4 |
|
100 |
±1.8 |
|
150 |
±2.2 |
|
200 |
±2.6 |
EN 10025-2 S275J2 Cov Khoom Siv Sib Pauv
|
Lub teb chaws / Txuj |
Xws li qib |
Sau ntawv |
|---|---|---|
|
Tebchaws Asmeskas (ASTM) |
A572 Qib 42 |
Zoo sib xws lub zog thiab Veldability |
|
Lub teb chaws Yelemees (Din) |
St44-3n |
Sib piv cov tawv tawv ntawm -20 degree |
|
Nyiv (JIS) |
Sm400c |
Sib npaug rau cov qauv siv |
|
Tuam Tshoj (GB) |
Q275D |
Sib Tw Tso Tawm Lub Zog thiab Kev Cuam Tshuam |
|
Fabkis (AFNOR) |
E28-3 |
Zoo sib xws rau kev tsim kho |
|
ISO |
FEM430D |
General txheej txheem sib npaug |
|
UK (BS) |
43D |
Piv rau kev siv tawm ntawm ntug dej |
Cov Khoom Siv
EN 10025-2 S275J2 yog ntau yam thiab siv dav hauv:
Kev tsa tsev: Rau cov choj, vaj tse, thiab chaw ntau pob, uas muaj lub zog muaj zog thiab qis {{} kub} kub sab.
Ntawm Chaw Tsim Tshuaj: Hauv platforms thiab cua tshuab, leveraging nws corrosion tsis kam thiab cuam tshuam nyuaj.
Cov Machinery hnyav: Rau cranes, excavators, thiab cov khoom siv mining, qhov twg ruaj khov nyob rau hauv cov khoom siv tsis sib haum yog qhov tseem ceeb.
Nkoj nkoj: Hauv Hulls thiab nce qib, tau txiaj ntsig los ntawm nws weldability thiab lub zog.
Zog Kev Txuag Hluav Taws Xob: Rau pipelines thiab cia tso tsheb hlau luam, zoo ib yam li EN055J3G3 khoom siv Hlau daim hlau tab sis nrog lub zog hlau.
