ASTM A335 P5, tseem hu ua ASME SA335 P5, yog cov yeeb nkab hlau tsis muaj hlau tsawg uas tsim los rau kev pabcuam kub siab.
P5 muaj 4.00 ~ 6.00% chromium thiab 0.45 ~ 0.65% molybdenum, muab lub zog zoo heev thiab kev ua tau zoo nyob rau hauv qhov kub thiab txias siab. Nws yog dav siv rau hauv cov khoom siv xws li boilers, superheaters, thiab cov cua sov sib pauv.
Nws lub npe UNS yog K41545.
Chaw Tsim Khoom thiab Mob
ASTM A335 P5 cov kav hlau yuav tsum ua los ntawm cov txheej txheem seamless thiab yuav tsum yog kub tiav lossis txias kos, raws li tau teev tseg.
Cov kav dej kub tiav lawm yog cov kav hlau tsis muaj qhov txuas uas tsim los ntawm cov billets los ntawm kev cua sov thiab dov cov txheej txheem, thaum cov kav dej txias yog cov kav hlau tsis muaj qhov txuas uas tsim los ntawm kev kos cov kav dej kub tiav lawm ntawm chav tsev kub.
Yog tias koj xav paub ntxiv txog cov txheej txheem tsim khoom ntawm ob hom yeeb nkab hlau tsis muaj seamless no, koj tuaj yeem nyem"Cov Yeeb Nkab Hlau Seamless Yog Dab Tsi?"kom paub meej ntxiv.
Kev Kho Mob Kub
Cov kav dej ASTM A335 P5 yuav tsum tau rov ua kom sov rau kev kho cua sov thiab kho cua sov los ntawmtag nrho los yog isothermal annealing or normalizing thiab tempering.
Cov kev cai tshwj xeeb tau qhia nyob rau hauv lub rooj hauv qab no:
| Qib | Hom kev kho cua sov | Kev Kub Ntxhov los yog Kub Kub |
| ASTM A335 P5 | tag nrho los yog isothermal anneal | — |
| normalizes thiab txo qhov mob | 1250 ℉ [675 ℃] feeb |
Cov haujlwm uas cuam tshuam nrog kev ua kom cov kav hlau kub tshaj qhov kub tseem ceeb, xws li kev vuam, flanging, thiab kev khoov kub, yuav tsum tau ua raws li kev kho cua sov kom tsim nyog.
Cov txheej txheem sim rau cov tshuaj lom neeg sib xyaw thiab cov khoom siv kho tshuab ntawm P5 cov kav hlau yuav tsum ua raws li cov kev cai ntawm ASTM A999.
| Qib | Cov khoom xyaw,% | ||||||
| C | Mn | P | S | Si | Cr | Mo | |
| P5 | 0.15 siab tshaj | 0.30 ~ 0.60 | 0.025 siab tshaj | 0.025 siab tshaj | 0.50 siab tshaj | 4.00 ~ 6.00 | 0.45 ~ 0.65 |
Cov Khoom Tensile
| Qib | Lub zog tensile | Lub Zog Tawm | Kev ntev hauv 2 nti los yog 50 hli |
| P5 | 60 ksi [415 MPa] feeb | 30 ksi [205 MPa] feeb | 30% feeb |
Cov Khoom Siv Hardness
Tus qauv ASTM A335 tsis teev cov kev cai nyuaj rau cov kav hlau P5.
Kev Ntsuas Kom Sib Nqus
Yuav tsum ua qhov kev sim ua kom tiaj tus thiab kuaj raws li cov kev cai ntawm ASTM A999, thiab cov yeeb nkab kawg uas raug txiav yuav siv tau ua cov qauv.
Kev Ntsuas Khoov
Rau cov yeeb nkab uas muaj txoj kab uas hla tshaj NPS 25 thiab uas nws txoj kab uas hla mus rau phab ntsa tuab yog 7.0 lossis tsawg dua yuav tsum raug rau qhov kev sim khoov es tsis txhob sim ua kom tiaj tus.
Cov qauv kuaj khoov yuav tsum khoov ntawm chav tsev kub txog 180° yam tsis muaj tawg rau sab nraud ntawm qhov khoov. Lub cheeb tsam sab hauv ntawm qhov khoov yuav tsum yog 1 nti [25 hli].
Qhov tsos
Qhov saum npoo ntawm cov yeeb nkab hlau yuav tsum du thiab sib npaug, tsis muaj qhov txhab, cov seams, laps, tearing, lossis slivers.
Yog tias qhov tob ntawm qhov tsis zoo tshaj 12.5% ntawm qhov tuab ntawm phab ntsa lossis yog tias qhov tuab ntawm phab ntsa seem qis dua qhov tuab tsawg kawg nkaus, thaj chaw ntawd yuav raug suav hais tias tsis zoo.
Thaum lub phab ntsa tuab tseem nyob hauv cov kev txwv teev tseg, qhov tsis zoo yuav raug tshem tawm los ntawm kev sib tsoo.
Yog tias qhov tuab ntawm phab ntsa seem tshuav qis dua qhov yuav tsum tau ua tsawg kawg nkaus, qhov tsis zoo yuav tsum tau kho los ntawm kev vuam lossis tshem tawm los ntawm kev txiav.
Kev kam rau txoj kab uas hla
Rau cov kav dej uas tau txiav txim los ntawm NPS [DN] lossis sab nraud txoj kab uas hla, kev hloov pauv ntawm sab nraud txoj kab uas hla yuav tsum tsis pub tshaj qhov yuav tsum tau ua raws li qhia hauv lub rooj hauv qab no:
| Tus Neeg Xaiv NPS [DN] | Kev Hloov Pauv Uas Tso Cai | |
| nyob rau hauv. | mm | |
| 1/8 txog 1 1/2 [6 txog 40], nti. | ±1/64 [0.015] | ±0.40 |
| Tshaj 1 1/2 txog 4 [40 txog 100], nti. | ±1/32 [0.031] | ±0.79 |
| Tshaj 4 txog 8 [100 txog 200], nti. | -1/32 - +1/16 [-0.031 - +0.062] | -0.79 - +1.59 |
| Tshaj 8 txog 12 [200 txog 300], nti. | -1/32 - +3/32 [-0.031 - 0.093] | -0.79 - +2.38 |
| Tshaj 12 [300] | ±1% ntawm qhov ntsuas sab nraud uas tau teev tseg | |
Rau cov yeeb nkab uas raug txiav txim kom muaj txoj kab uas hla sab hauv, txoj kab uas hla sab hauv yuav tsum tsis txhob txawv ntau tshaj 1% ntawm txoj kab uas hla sab hauv uas tau teev tseg.
Kev kam rau siab ntawm phab ntsa
Ntxiv rau qhov kev txwv tsis pub dhau ntawm phab ntsa tuab rau cov yeeb nkab uas raug txwv los ntawm qhov hnyav hauv ASTM A999, phab ntsa tuab rau cov yeeb nkab ntawm txhua qhov chaw yuav tsum nyob hauv qhov kev kam rau siab uas tau teev tseg hauv lub rooj hauv qab no:
| Tus Neeg Xaiv NPS [DN] | Kev kam rau siab,% daim ntawv teev tseg |
| 1/8 txog 2 1/2 [6 txog 65] suav nrog txhua qhov piv ntawm t/D | -12.5 - +20.0 |
| Saum toj no 2 1/2 [65], t/D ≤ 5% | -12.5 - +22.5 |
| Saum toj no 2 1/2, t/D > 5% | -12.5 - +15.0 |
| t = Qhov Thickness ntawm Phab Ntsa uas tau teev tseg; D = Qhov Txoj Kab Uas Tau Teev Tseg Sab Nraud. | |
ASTM A335 P5 cov kav hlau feem ntau yog siv rau hauv cov kav dej ua haujlwm hauv qab qhov kub thiab txias thiab siab.
Vim lawv qhov kev tiv taus kub zoo heev thiab cov khoom siv kho tshuab, lawv tau siv dav hauv kev lag luam petrochemical, kev tsim hluav taws xob, thiab kev lag luam refinery.
Cov ntawv thov tshwj xeeb suav nrog:
- Cov kav dej boiler
- Cov khoom siv hloov cua sov
- Cov kab ua haujlwm petrochemical
- Cov kav dej fais fab
- Cov hlab ntsha siab ntawm lub boiler
| ASME | ASTM | EN | JIS |
| ASME SA335 P5 | ASTM A213 T5 | EN 10216-2 X11CrMo5 + Kuv | JIS G 3458 STPA25 |
Khoom siv:ASTM A335 P5 cov kav hlau tsis muaj seamless thiab cov khoom siv;
Loj:1/8 "txog 24", lossis kho raws li koj xav tau;
Ntev:Qhov ntev random lossis txiav kom txiav txim;
Ntim:Cov txheej txheem dub, cov qhov kawg beveled, cov yeeb nkab kawg tiv thaiv, cov ntoo crates, thiab lwm yam.
Kev Txhawb Nqa:Daim ntawv pov thawj IBR, kev tshuaj xyuas TPI, MTC, kev txiav, kev ua tiav, thiab kev kho kom haum;
MOQ:1 m;
Cov nqe lus them nqi:T/T los yog L/C;
Nqe:Tiv tauj peb kom tau txais cov nqi yeeb nkab hlau T11 tshiab kawg.
