W txhais tau tias sau, pov;
C-CARBON STEEL Cov hlau carbon, A, b, thiab C qhia txog tus nqi zog ntawm hom hlau los ntawm qis mus rau siab.
WCA, WCB, WCC sawv cev rau cov hlau carbon, uas muaj kev ua haujlwm vuam zoo thiab lub zog kho tshuab. ABC sawv cev rau qib zog, feem ntau siv WCB. Cov khoom siv yeeb nkab sib xws rau WCB yuav tsum yog A106B, thiab cov khoom siv forging sib xws yog A105. Haum rau cov li qub nyob rau hauv qhov kub thiab txias ib txwm muaj.
WC6 yog kev ua los ntawm cov hlau alloy. Nws muaj kev tiv taus kub zoo heev thiab cov khoom antioxidant thiab tsim nyog rau cov li qub hauv qab qhov kub thiab txias thiab siab.
Cov khoom siv kav dej sib xws yog li A355 P11, thiab qhov forging yog A182 F11;
Tsis tas li ntawd xwb, muaj WC9, hlau alloy kub siab, sib raug rau kwv yees li A355 P22, thiab kev forging yuav tsum sib raug rau A182 F22.
WC welded casting muaj lub zog siab thiab qhov nyuaj. Haum rau cov ntawv thov kev lag luam ib txwm muaj.
LCB/LCC (ASTM A352) Cov hlau carbon uas kub tsawg muaj qhov tawv tsawg thiab tiv taus xeb. Nws tsim nyog rau cov ntawv thov kub tsawg, xws li roj LPG (LNG).
Zfa Valves tsim cov WCB npauj npaim li qub rau cov neeg siv khoom thoob plaws ntiaj teb nrog qhov kub thiab txias sib xws, thiab peb kuj tuaj yeem tsim LCC npauj npaim li qub rau cov neeg siv khoom los ntawm sab qaum teb ntawm Tebchaws Europe xws li Russia, Finland thiab lwm yam.
saum toj no yog WCBTuam Tshoj wafer npauj npaim valvethiab LCCTuam Tshoj lug npauj npaimlub valve.
Cov hlau carbon castings thiab cov ntaub ntawv forged feem ntau siv rau hauv cov li qub
| Cov Khoom Siv Xwm Txheej | Daim Ntawv Ceeb Toom | Tus lej txheem | Tus lej khoom siv | ||
| kev ua pov thawj | Tuam Tshoj | GB/T 12229 | WCA | WCB | WCC |
| ZG205-415 | ZG250-485 | ZG275-485 | |||
| Tebchaws 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 | ||
| Tebchaws Asmeskas | ASTM A105/A105M | A105 | |||
Cov khoom siv hlau cam khwb cia qis -kub thiab qhov kub thiab txias siv tau
| hom | C | C | C-Mn | C-Mo | 2.5Ni | Ni-Cr-Mo | 3.5Ni | 4.5Ni | 9Ni | Cr-Ni-Mo |
| Tus lej khoom siv | LCA | LCB | LCC | LC1 | LC2 | LC2-1 | LC3 | LC4 | LC9 | CA6NM |
| UNS No. | J02504 | J03303 | J02505 | J12522 | J22500 | J42215 | J31550 | J41500 | J31300 | J91540 |
| Kub siv tau ℃ | -32 | -46 | -46 | -59 | -73 | -73 | -101 | -115 | -196 | -73 |
ASTM cov ntaub ntawv forging thiab casting sib piv cov lus qhia feem ntau siv rau hauv cov li qub (ASME B16.5)
| ASTM casting | ASTM forged | Suav Naj Npawb. | Kub siv tau ℃ | Siv tau nruab nrab | ||||
| Cov Hlau Carbon | ||||||||
| A216 WCB | A105 | 20 | -29~427 | Dej, pa dej, cua, thiab cov khoom siv roj av | ||||
| Cov hlau carbon tsawg-kub | ||||||||
| A352 LCB | A350 LF2 | 16Mn | -46~343 | Qhov kub tsawg nruab nrab | ||||
| A352 LCC | A350 LF2 | 16Mn | -46~343 | Qhov kub tsawg nruab nrab | ||||
| Cov hlau alloy kub siab | ||||||||
| A217 WC1 | A182 F1 | 20MnMo | -29~454 | Kub thiab siab nruab nrab | ||||
| A217 WC6 | A182 F11 | 15CrMo | -29~552 | Kub thiab siab nruab nrab | ||||
| A217 WC9 | A182 F22 | 10Cr2Mo1 | -29~593 | Kub thiab siab nruab nrab | ||||
| A217 C5 | A182 F5 | 1Cr5Mo | -29~650 | Corrosive kub nruab nrab | ||||
| martensitic stainless hlau | ||||||||
| A217 CA15 | A182 F6a | 1Cr13 | -29~371 | Lub zog qis dua 304 saum toj no 450 ℃ | ||||
| Cov Hlau Stainless Austenitic (C≤0.08) | ||||||||
| A351 CF8 | A182 F304 | 0Cr18Ni9 | -196~537 | Cov khoom siv ua kom xeb | ||||
| A351 CF3 | A182 F304L | -196~425 | Cov khoom siv ua kom xeb | |||||
| A351 CF8M | A182 F316 | 0Cr18Ni12Mo2Ti | -196~537 | Cov khoom siv ua kom xeb | ||||
| A351 CF3M | A182 F316L | -196~425 | Cov khoom siv ua kom xeb | |||||
| Cov hlau tsis muaj carbon austenitic uas tsis tshua muaj zog (C≤0.03) | ||||||||
| A351 CF3 | A182 F304L | 00Cr18Ni10 | -196~427 | Cov khoom siv ua kom xeb | ||||
| A351 CF3M | A182 F316L | 00Cr18Ni14Mo2 | -196~454 | Cov khoom siv ua kom xeb | ||||
| Cov hlau tshwj xeeb | ||||||||
| A351 CN7M | B462 Qib. NO8020 (ALLOY 20) | -29~149 | Cov khoom siv oxidizing thiab ntau yam concentration ntawm sulfuric acid | |||||
| A494 M-30C (Monel) | B564 Qib NO4400 | -29~482 | Hydrofluoric acid, dej hiav txwv | |||||
Lus Cim: 1) Cov khoom siv forged valve lub cev muaj cov qauv ntom ntom, tsis yooj yim rau muaj qhov tsis zoo, qhov loj ntawm cov qauv tsis raug rau cov pwm txwv, kev ua haujlwm siab txhim khu kev qha, feem ntau siv rau cov xwm txheej siab, oxygen, txoj kab uas hla me me lossis lwm cov khoom me me ntawm cov valve thaum tsim cov khoom siv kub, siab lossis qis lossis cov khoom siv tshwj xeeb raws li kev xaiv ntawm forging; casting feem ntau tsuas yog siv rau nruab nrab thiab qis siab, thiab siv rau kev tsim cov khoom siv ntau.
(2) Cov khoom siv A351 CF3M thiab A182 F316L sib txawv: ob tus qauv sib xws rau cov khoom siv yog 316 stainless hlau. CF3M qhia tias qhov casting, feem ntau siv ua cov ntaub ntawv valve. Cov lej forging steel sib xws yog A182 F316L. ASTM A216 WCB yog casting, thiab nws cov forgings yog A105; SS304 castings yog A351-CF8, thiab forgings yog A182-F304.
Lub sijhawm tshaj tawm: Kaum Ib Hlis-07-2023