SA387 Qib 22 Chav Kawm 2 yog dab tsi?
SA387 Qib 22 Chav Kawm 2yog qib tshwj xeeb ntawm chrome-molybdenum (Cr-Mo) alloy steel phaj tsim los rau siab - kub thiab siab - kev pabcuam siab. Nws feem ntau yog siv rau hauv kev tsim cov hlab ntsha siab, boilers, thiab reactors hauv kev lag luam xws li roj refineries, petrochemical cov nroj tsuag, thiab lub zog tsim.
ASTM A387 Gr.22 CL.2 Alloy Steel Phaj Sib npaug qib
| Lub teb chaws | EU EN |
USA - | Lub teb chaws Yelemees DIN, NWS |
Nyiv JIS |
Fabkis AFNOR |
Askiv BS |
Ltalis UNI |
Tuam Tshoj GB |
Sweden SS |
| STANDARDS | 10CrMo9-10 | A387 Gr.22 Gr.P 22 |
10CrMo9-10 | SCMV 4 | 10 CD9-10 12 CD9-10 |
622 622g31 ib |
10CrMo9-10 12CrMo9-10 |
12 CrMo | 2218 |
| Lub teb chaws | Poland PN |
Czechia CSN |
Austria ONORM |
Russia GOST |
Inter ISO |
| STANDARDS | 10H2M | 15313 | 10CrMo9-10KW lub cev muaj zog | 10 KH2M | F34 P34 TS 34 |
ASTM A387 Qib 22 CL.2 Alloy Steel Phaj Chemical Composition
| Qib | C | Mn | P | S | Si | Cr | Mo |
| A387 Gr.22 | 0.05-0.15 | 0.30-0.60 | 0.035 | 0.035 | 0.50 max | 2.00-2.50 | 0.90-1.10 |
ASTM A387 Gr 22 CL.2 Alloy Steel Phaj Mechanical Properties
| Chav kawm | Tensile (MPa) | Tawm tswv yim (MPa) | Elong. (50 hli) | Elong. (200 hli) | Reduc'n ntawm Cheeb Tsam * |
| Chav Kawm 1 | 415 - 585 | 205 feeb | 18% min | - | 40% min |
| Chav kawm 2 | 515 - 690 | 310 min | 18% min | - | 40% min |
Daim ntawv thov ntawm A387 Gr.22 Chav Kawm 2 Alloy Steel Phaj
ASTM A387 Qib 22 siab hlab ntsha hlau yog dav siv hauv roj av, tshuaj lom neeg kev lag luam, chaw nres tsheb fais fab, boiler, thiab lwm yam, siv los ua lub reactor, heat exchanger, separator, spherical tank, liquefied gas, nuclear reactor pressure vessel, boiler steam nruas steam, liquefied petroleum, hydropower station, high pressure pipe.
Cov txiaj ntsig ntawm A387 Gr.22 Class 2 Steel Phaj
| Feature | Paub meej / Cov ntaub ntawv |
|---|---|
| High Strength & Efficiency | Yield zog Ntau dua los yog sib npaug rau 310 MPa, Tensile zog 515-690 MPa, elongation Ntau dua los yog sib npaug li 18-22%. |
| Kev ua haujlwm siab | Khaws cov khoom siv kho tshuab ntawm qhov kub txog li 550 degree. |
| Lub Neej Ntev Ntev | Kev tiv thaiv zoo heev rau oxidation, corrosion, thiab thermal qaug zog, txo cov nqi kho. |
| Flawless tiav | Kub- dov daim hlau nrog nruj me ntsis kam rau ua thiab du nto. |
| Durable | Siab creep zog thiab hnav tsis kam nyob rau hauv tas li load. |
| Corrosion Resistant Lub Cev | Chromium thiab molybdenum alloying muab kev txhim kho corrosion kuj hauv cov pa roj qaub thiab siab - qhov kub thiab txias. |
| Siab kub Resistant Lub Cev | Khaws cov tawv tawv thiab kev ua haujlwm ruaj khov hauv nruab nrab - thiab siab - qhov kub thiab txias kev pabcuam. |
| Weldability zoo | tuaj yeem welded siv cov qauv txheej txheem nrog preheat kom zoo thiab tom qab-weld heat treatment (PWHT), txo qhov kev pheej hmoo ntawm kev tawg. |
1. SA387 Qib 22 Chav Kawm 2 yog dab tsi?
SA387 Qib 22 Chav Kawm 2 yog ib qho kev qhia tshwj xeeb rau chromium-molybdenum alloy steel daim hlau feem ntau siv hauv cov hlab ntsha siab thiab lwm yam siab - cov ntawv thov kev pabcuam kub.
2. Cov tshuaj muaj pes tsawg leeg ntawm SA387 Qib 22 Chav Kawm 2 yog dab tsi?
Nws muaj pes tsawg leeg muaj xws li chromium (2.00-2.50%), molybdenum (0.90-1.10%), nrog carbon, manganese, phosphorus, sulfur, thiab silicon ua rau seem.
3. Dab tsi yog cov khoom siv kho tshuab ntawm SA387 Gr 22 Cl 2?
Cov khoom tseem ceeb muaj xws li lub zog tensile yam tsawg kawg nkaus ntawm 515 MPa (75 ksi) thiab qhov tsawg kawg nkaus yield zog ntawm 310 MPa (45 ksi) rau cov phaj siab tshaj 65 hli tuab.
4. Qhov txawv ntawm SA387 Qib 22 Chav Kawm 1 thiab Chav Kawm 2 yog dab tsi?
Thawj qhov sib txawv yog kev kho cua sov; Cov khoom siv hauv chav kawm 2 yuav tsum tau muab nkag rau hauv cov xwm txheej zoo li qub thiab kub ntxhov, thaum Chav Kawm 1 tsis muaj qhov yuav tsum tau ua, cuam tshuam rau nws lub zog thiab microstructure.
5. Qhov kev pabcuam siab tshaj plaws rau SA387 Qib 22 yog dab tsi?
SA387 Qib 22 feem ntau yog siv rau kev pabcuam kub txog li 550℃(1022℃F), tab sis cov kev txwv tshwj xeeb yog nyob ntawm qhov siab thiab kev ntxhov siab.
6. Puas yog SA387 Qib 22 Chav Kawm 2 sib npaug rau lwm qib khoom siv?
Yog lawm, nws yog dav sib npaug rau ASTM A387 Gr22 Cl2, ASME SA387 Gr22 Cl2, thiab cov khoom siv wrought qib UNS K21590.
7. Yuav ua li cas rau vuam SA387 Qib 22 Chav Kawm 2 hlau?
Vuam feem ntau yuav tsum tau ua ntej- cua sov thiab tom qab-weld heat treatment (PWHT). Common filler metals muaj xws li AWS E9015-B3 rau SMAW lossis cov qhab nia sib raug rau lwm cov txheej txheem kom phim lub hauv paus hlau cov khoom.
8. Kev kho cua sov rau SA387 Gr22 Cl2 yog dab tsi?
SA387 Qib 22 Chav Kawm 2 daim hlau tau muab tso rau hauv qhov qub (ntawm 1650-1750℃F) thiab tempered (ntawm 1250-1350℃F) mob kom ua tiav cov khoom siv kho tshuab.
9. Qhov twg yog SA387 Qib 22 Chav Kawm 2 nquag siv?
Nws yog dav siv nyob rau hauv fabrication ntawm siab hlab ntsha, boilers, thiab reactors rau lub hwj chim tiam, petrochemical, thiab roj & roj industries, tshwj xeeb tshaj yog rau cov khoom raug kub thiab siab.
10. Dab tsi yog qhov yuav tsum muaj hardness rau SA387 Qib 22 Chav Kawm 2?
Thaum lub ASTM / ASME specification tsis txwv ib tug hardness, nws yog feem ntau tswj thaum lub sij hawm kho cua sov. Ib qho kev xav tau hauv kev pabcuam yog kom muaj qhov siab tshaj plaws, feem ntau 225 Brinell (HBW) lossis qis dua, txhawm rau tiv thaiv cov teeb meem xws li hydrogen-induced cracking.
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.
