### 1. Cov khoom siv yog 1cr18ni99?
* ** 1CR18NI99 yog tus qauv Suav (GB) rau kev ua kom muaj kev sib npaug ntawm cov hlau. ** Nws yog qhov tseem ceeb ntawm kev tsis yog S32100 lossis ASTM 321 stainless hlau **.
* Nws tus cwj pwm tseem ceeb yog qhov sib ntxiv ntawm ** titanium (ti)}} Qhov no tiv thaiv cov kev xav thiab txuas ntxiv ntawm kev txhim kho corrantic.
* Cov muaj pes tsawg leeg txhais tau tias ~ 18% chromium (CR), ~ 9% npib tsib (NI), thiab stabilizing titanium.
### 2. Dab tsi yog A312 steel?
* ** AVTM A312 yog * tsis yog * ib qib steel tshwj xeeb. Nws yog ASTM International * Standard Specification *. ** Tus qauv tshwj xeeb yog "kev sib tw tau welded, welded, thiab hnyav txias ua haujlwm ustenitic kav hlau".
* Nws txhais tau tias ** Xav tau rau cov chaw tsim khoom (qhov kev kuaj tshuaj muaj tshuaj lom neeg, thiab lwm yam) ntawm cov kav dej hydrostatatic, thiab lwm yam.
* ** Cov qib kawm uas tau teev tseg nyob rau hauv A312 suav nrog: ** TPP36 \/ 3147, TPPUCTH, S, TPPES AS S31803 \/ S32205.
### 3. Yuav ua li cas txheeb xyuas cov yeeb nkab steel?
Txheeb xyuas cov yeeb nkab steel hlau cuam tshuam nrog ntau txoj kev, feem ntau siv hauv kev sib xyaw ua ke:
1. ** Cim tau cov cim kev pom: ** Saib rau stencil tas mus li, stamping, lossis tag nrho cov yeeb nkab ntawm cov yeeb nkab nws tus kheej lossis nws cov pob. Qhov no feem ntau suav nrog:
* Txuj Ci (piv txwv li, Astm A106, A312L)
* Qib (piv txwv, B, 304L, X42)
* Qhov loj me (NPS & Sijhawm lossis WT)
* Cov chaw tsim khoom lub npe lossis logo
* Cov lej kub lossis ntau tus lej
* Qee zaum qhov hnyav \/ ntev cim.
2. ** Daim ntawv pov thawj khoom siv khoom siv (MT cov ntawv pov thawj) \/ Mill daim ntawv pov thawj: ** Nqe
3. ** kev sib nqus hlau sib nqus (sib txawv sib txawv): ** Siv cov hlau nplaum muaj zog. Anustenitic Stainless hlau (zoo li 304, 311) feem ntau tsis sib nqus lossis sib nqus me ntsis (tshwj xeeb yog cov tub yees txias). Cov hlau carbon, cov hlau ferritic, thiab martensitic stainless hlau yog sib nqus. Duplex stainless hlau yog muaj hlau me. * Qhov no tsuas yog qhia kev ntxhib. *
4. ** Tus neeg teb xov tooj (kws tshaj lij kev sib tsoo): ** Kev sib tsoo cov kab mob (xim, cov kab mob, tuaj yeem pab sib txawv ntawm cov hlau loj (piv txwv li cov hlau sib txawv ntawm cov hlau. Yuav tsum muaj kev cob qhia thiab tsis tshua ntseeg tau rau cov qib tshwj xeeb.
5. ** Cov khoom siv tshuaj lom neeg tshuaj): ** Cov khoom siv ua teb): ** Cov khoom siv Portable los qhia txog qhov tseem ceeb, xws li molybdenum rau 316, npib tsib xee rau autustenic ss). Tuaj yeem yog ib nrab-feebitive.
6. ** Kev txhim khu kev qha ntawv tshaj plaws Qhov no yog qhov muaj tseeb tshaj plaws txoj kev ua haujlwm rau qib kev txheeb xyuas.
7..
### 4. Dab tsi yog cov khoom ntawm 321 stainless hlau yeeb nkab?
321 Stainless Hlau Yeeb (ASTM A312 TP321), ruaj khov nrog titanium, muaj cov khoom tseem ceeb no:
* ** QIB ZOO TSHAJ PLAWS YIG: ** Corrosion tsis kam zoo ib yam li 304. Zoo heev rau ntawm oxidation thiab intergranular corrosion nyob rau hauv lub carbide nag lossis vim yog ti stabilization ntau (vim yog ti ua kom ruaj khov).
* ** Zoo siab lub zog Zoo dua rau 304 \/ 304L hauv qhov kub-muaj kub kub chim ({{8} degree \/ {}} degree f).
* ** ZOO TSHAJ-QHOV KUA-KUB SCARKE: ** Haum rau Cryogenic Daim Ntawv Thov nqis mus rau kwv yees li {1}}}} degree f).
* ** FEDILITY ZOO THIAB VOTABILISH: ** Tsim yooj yim thiab welded siv cov qauv txheej txheem uas ua rau muaj cov hlau tsis huv. Tom qab Weld annealing yog feem ntau tsis tas yuav tiv thaiv cov intergranular corrosion nyob ze Welds.
* ** Tsis yog-hardenable los ntawm kev kho cua sov: ** Ntxiv dag zog yog ua tiav los ntawm kev ua haujlwm txias.
* ** Tsis yog xim (hauv annealed xeev): ** Ua cov sib nqus me ntsis thaum txias-ua haujlwm.
* **Key Limitation:** Slightly lower creep strength than unstabilized grades like 304H at very high temperatures (>~ 600 DEGREE \/ 1112 DLUGL F). Tsis pom zoo rau lub aqueous corrosous ib puag ncig uas 316L yuav zoo dua.
### 5. Qhov twg yog qhov zoo tshaj SS316 lossis 321 stainless hlau?
* ** Xaiv 316 \/ 316L: ** Yog tias koj qhov kev txhawj xeeb tseem ceeb yog ** tsis kam rau Chloride, pitting, thiab cov acids) lossis yog tias koj xav tau cov tshuaj qab ntsev) lossis yog koj xav tau cov tshuaj qab ntsev zoo nkauj.
* ** Xaiv 321: ** Yog tias koj qhov kev txhawj xeeb thawj zaug yog qhov kev ua haujlwm zoo nkauj thiab kev hloov pauv ({}
* **For general corrosion resistance at lower temps or very high-temp oxidation resistance (>800 degree) tsis muaj kev pheej hmoo txaus ntshai, ** Ob qho tib si tuaj yeem tsim nyog, nrog 316 muab cov tshuaj chloride dav dav dav thiab 321 feem ntau tau nqi ntau dua.
