W txhais tau tias sau, nrum;
C-CARBON STEEL carbon steel, A, b, thiab C qhia lub zog ntawm cov hlau hom los ntawm qis mus rau siab.
WCA, WCB, WCC sawv cev rau cov pa roj carbon steel, uas muaj kev vuam zoo thiab kev siv lub zog.ABC sawv cev rau qib zog, feem ntau siv WCB.Cov khoom siv yeeb nkab sib raug rau WCB yuav tsum yog A106B, thiab cov khoom siv sib txuas yog A105.Haum rau li qub nyob rau hauv cov pa kub thiab siab.
WC6 yog cov hlau alloy.Nws muaj qhov kub thiab txias ua haujlwm zoo thiab muaj zog antioxidant thiab tsim nyog rau cov li qub nyob rau hauv qhov kub thiab txias.
Cov khoom siv sib txuas yog hais txog A355 P11, thiab qhov forging yog A182 F11;
Tsis tas li ntawd, muaj WC9, high-temperature alloy steel, sib xws txog li A355 P22, thiab forging yuav tsum sib haum rau A182 F22.
WC welded casting muaj siab zog thiab hardness.Haum rau cov pa siv rau kev lag luam.
LCB / LCC (ASTM A352) Tsawg-temperature carbon steel muaj tsawg toughness thiab corrosion kuj.Nws yog qhov tsim nyog rau cov ntawv thov kub-kub ultra-low kub, xws li LPG natural gas (LNG).
Zfa Valves tsim ntau hom WCB npauj npaim li qub rau cov neeg siv khoom thoob plaws ntiaj teb nrog qhov kub thiab txias, thiab peb kuj tuaj yeem tsim LCC npauj npaim li qub rau Cov Neeg Siv Khoom los ntawm North of Europe xws li Russia, Finland thiab lwm yam.
saum toj no yog WCBTuam Tshoj wafer npauj npaim valvethiab LCCSuav lug npauj npaimvalve.
Carbon steel castings thiab forged cov ntaub ntawv feem ntau siv nyob rau hauv li qub
| Khoom siv | Daim ntawv ceeb toom | Standard Number | Khoom Naj Npawb | ||
| casting | Tuam Tshoj | GB/T 12229 | WCA | WCB | WCC |
| ZG205-415 | ZG250-485 | ZG275-485 | |||
| Asmeskas | ASTM A216/A216M | WCA | WCB | WCC | |
| UNS J02502 | UNS J03002 | UNS J02503 | |||
| Forged | Tuam Tshoj | GB/T 12228GB/T 699 | 25 25Mn 35 40 A105 | ||
| Asmeskas | ASTM A105/A105M | A105 | |||
Tsawg-temperature cam khwb cia hlau cov ntaub ntawv qib thiab siv tau kub
| hom | C | C | C-Mn | C-Mo | 2.5 Nws | Ni-Cr-Mo | 3.5 Nws | 4.5 Nws | 9 nre | Cr-Ni-Mo |
| Khoom Naj Npawb | LCA | LCB | LCC | LC 1 | LC 2 | LC2-1 | LC3 | LC4 | LC 9 | CA6 NM |
| UNS No. | j0250 4 | j0330 3 | j0250 5 | j1252 2 | J22500 | j4221 5 | j31550 ua | j41500 ua | j31300 ua | j91540 ua |
| Qhov ntsuas kub ℃ | -32 | -46 | -46 | -59 | -73 | -73 | -101 | -115 | -196 | -73 |
ASTM cov ntaub ntawv forging thiab casting sib piv cov rooj feem ntau siv hauv li qub (ASME B16.5)
| ASTM casting txheej txheem | ASTM forged | Suav No. | Qhov ntsuas kub ℃ | Siv tau nruab nrab | ||||
| Carbon Steel | ||||||||
| A216 WCB | A105 | 20 | -29-427 | Dej, chav, cua, thiab roj av | ||||
| Tsawg-kub carbon steel | ||||||||
| A352 LWB | A350 LF2 | 16 Mn | -46-343 | Tsawg kub nruab nrab | ||||
| A352 LCC | A350 LF2 | 16 Mn | -46-343 | Tsawg kub nruab nrab | ||||
| High-temperature alloy hlau | ||||||||
| A217 WC1 | A182 F1 | 20 MnMo | -29-454 | Kub kub thiab kub siab nruab nrab | ||||
| A217 WC 6 | A182 F11 | 15 CrMo | -29-552 | Kub kub thiab kub siab nruab nrab | ||||
| A217 WC 9 | A182 F22 | 10Cr2Mo1 | -29-593 | Kub kub thiab kub siab nruab nrab | ||||
| A217 C5 | A182 F5 | 1cr5 hmo | 29-650 Nws | Corrosive kub nruab nrab | ||||
| martensitic stainless hlau | ||||||||
| A217 CA 15 | A182 F6 a | 1 Cr13 | -29-371 | Ua kom muaj zog qis dua 304 saum 450 ℃ | ||||
| austenitic stainless hlau (C≤0.08) | ||||||||
| A351 CF 8 | A182 F304 | 0c18n 9 | -196-537 | Corrosive nruab nrab | ||||
| A351 CF 3 | A182 F304L | -196-425 | Corrosive nruab nrab | |||||
| A351 CWB 8M | A182 F316 | 0Cr18Ni12Mo2 Ti | -196-537 | Corrosive nruab nrab | ||||
| A351 CF 3M | A182 F316L | -196-425 | Corrosive nruab nrab | |||||
| Ultra low carbon austenitic stainless hlau (C≤0.03) | ||||||||
| A351 CF 3 | A182 F304L | 00Cr18Ni10 | -196-427 | Corrosive nruab nrab | ||||
| A351 CF 3M | A182 F316L | 00Cr18Ni14Mo2 | -196-454 | Corrosive nruab nrab | ||||
| Tshwj xeeb alloy | ||||||||
| A351 CWJ 7M | wb 462g.NO 8020 (NPO 20) | -29-149 | Oxidizing xov xwm thiab ntau yam ntawm sulfuric acid | |||||
| A494 M-30C (Monel) | wb 564g.Nr 4400 | -29-482 | Hydrofluoric acid, dej hiav txwv | |||||
Lus Cim: 1) forged valve lub cev cov khoom siv lub cev ntom ntom, tsis yooj yim kom muaj qhov tsis xws luag, qhov ntev ntawm cov qauv tsis raug pwm txwv, txhim khu kev qha siab, feem ntau yog siv rau kev kub siab, oxygen, me me txoj kab uas hla los yog lwm yam me me batch ntawm li qub. kev tsim khoom ntawm qhov kub-kub, siab-siab lossis qis-kub lossis tshwj xeeb tshaj tawm raws li kev xaiv ntawm forging;casting feem ntau tsuas yog siv tau rau nruab nrab thiab qis-siab, thiab yog siv rau cov qauv molding li qub ntawm cov khoom loj.
(2) Khoom siv A351 CF3M thiab A182 F316L sib txawv: ob tus qauv sib haum rau cov khoom siv yog 316 stainless hlau.CF3M qhia tau hais tias cov casting, feem ntau siv los ua cov ntaub ntawv valve.Sib piv forging steel code yog A182 F316L.ASTM A216 WCB yog casting, thiab nws cov forgings yog A105;SS304 castings yog A351-CF8, thiab forgings yog A182-F304.
Post lub sij hawm: Nov-07-2023