Fa'asinomaga foliga paipa ma vasega Q345C/D/E ma specail luga togafitiga
1. Fa'amatalaga
O le vaega omo e masani ona faʻaaogaina i le fausaga uʻamea ma masini masini, ae o foliga masani ma le vasega e le mafai ona faʻamalieina se vaega faʻapitoa;
Ina ia fetaui ma le tele ma sili atu manaʻoga faʻapitoa, ua sauni la matou kamupani e tuʻuina atu se talosaga faʻanatinati e pei ona taua i lalo:
1) foliga fa'apitoa e pei o le fa'aofuofu Oval, fa'aigoa taimane, fa'ato'aga falaoa, fa'ailoga fa'apitoa
2) vasega fou e pei o Q345B, Q345C, Q345D, Q355B, Q355C, Q355D, SS400, 304, 316, 310, 16Mo3, AL-6Xn ma isi
3) Lau'ele'ele pei o le epoxy primer, fana fana ma isi
Q345A, Q345B, Q345C, Q345D, Q345E o eseesega o togi lelei, faateleina mai le A i le E, e mafua ona o le eseesega.
i le vevela o aʻafiaga e mafua mai i mea o loʻo i totonu o microelements e pei o le phosphorus ma le sulfur, o lona uiga o le aʻafiaga o le vevela e
'ese'ese Ma fa'aau faumea tu'ufa'atasiga mea fa'ainisinia.
Ole vasega Q345A e leai se a'afiaga; o le Q345B vasega o se 20 tikeri faateʻia i le vevela potu; o le Q345C vasega o se 0 tikeri faateʻia;
o le Q345D vasega o se -20 tikeri faateʻia; le Q345E vasega o se -40 tikeri faateʻia. I le eseese o le vevela o le te'i, o le taua foi o le te'i
eseese.
Ole malosi ole Q e le itiiti ifo ile 345Mp. O le tulaga lelei e faʻaalia ai le aofaʻi o elemene eleelea (carbon, manganese, silicon, sulfur,
phosphorus. O le elemene eleelea i totonu o le uamea), ma o le tele o le A, B, C, ma le D e alu, o le itiiti ifo lea o mea le mama.
2. Vasega Vailaau Fa'atusa
| Vasega | Tulaga Fa'ainumera (%) | ||||
| C | Si | Mn | P | S | |
| Q235B | ≤0.20 | ≤0.35 | ≤1.40 | ≤0.045 | ≤0.045 |
| Q345B | ≤0.20 | ≤0.50 | ≤1.70 | ≤0.035 | ≤0.035 |
| Q345C | ≤0.20 | ≤0.50 | ≤1.70 | ≤0.035 | ≤0.030 |
| Q345D | ≤0.18 | ≤0.50 | ≤1.70 | ≤0.035 | ≤0.025 |
3. Meatotino Fa'ainisinia
| Vasega | Meatotino Fa'ainisinia | ||
| Malosi e maua mai (N/mm2)/(Mpa) | Malosi (N/mm2)/(Mpa) | Fa'aumi (%) | |
| Q235B | ≥235 | 370-500 | ≥26 |
| Q345B | 345 | 470-630 | ≥20 |
| Q345C | 345 | 470-630 | ≥21 |
| Q345D | 345 | 470-630 | ≥21 |
4. Togafitiga luga:
Epoxy zinc-oa mea muamua
Fa'ato'a fana:
5. Q345 C/D/E talosaga:
1) Q345C seamless paipa e masani ona faʻaaogaina i faʻalapotopotoga faʻainisinia, masini eletise, faʻaaogaina lautele i vailaʻau, suauu, ie,
foma'i, mea'ai, masini ma isi alamanuia, e masani lava ona fa'aaogaina i paipa fa'a'ele'ele fale gaosimea, vaega fa'avae ma vaega.
2) Q345D paipa uʻamea seamless e masani ona faʻaaogaina i vaʻa, boilers, vaʻa mamafa, tane suauʻu teuina, alalaupapa, masini eletise,
si'itia ma felauaiga masini ma isi vaega fa'apipi'i uelo maualuga.
3) Q345E cryogenic tubes o loʻo faʻaaogaina i le maualuga o le mamafa ma le maualuga o le vevela o paipa ma meafaigaluega e pei o le eletise,
fale malosi faaniukilia, fauvela maualuga, fa'avevela vevela maualuga ma toe fa'avevela. O le Q345E cryogenic paipa ei ai
o se vaega gaogao ma e masani ona faʻaaogaina o se paipa mo le felauaiga o vai, e pei o paipa mo le felauaiga o suauʻu, kesi masani, kesi, vai
ma nisi mea mautu.
6. Isi vaega fa'apitoa:
5. Q345 C/D/E talosaga:
Q345D paipa u'amea lelei, Q345D paipa u'amea, Q345D paipa u'amea, Q345E paipa u'amea lelei, paipa u'amea lelei mo maualuga
meafaigaluega fa'ama'i fa'amalosi, paipa u'amea maualalo o le vevela mo fale eletise, vaila'au vaila'au ma pusa.
