SCS14 sib npaug li cas?

sCS14 yog dab tsi?
Yog tias koj tab tom nrhiav kev txhim kho corrosion-cov khoom tsis zoo stainless hlau, tej zaum koj yuav tau ntsib SCS14, tshwj xeeb tshaj yog nyob rau hauv lub valve, twj tso kua mis, thiab casting industries. SCS14 yog Japanese JIS tus qauv stainless hlau casting qib (JIS G5121), muaj nyob rau hauv austenitic stainless hlau castings, feem ntau siv nyob rau hauv li qub, twj tso kua mis lub cev, flanges, fittings, thiab seawater systems.

 

Dab tsi yog ASTM cov khoom sib npaug rau SCS14A?

ACI-ASTM CF8M (SCS14, SCS14A, J92900) Stainless Hlau Stainless. ACI-ASTM CF8M steel yog ib qho austenitic stainless hlau tsim rau casting. Cov khoom raug suav hais tias tsim nyog rau kev kho cua sov (HT). CF8M yog tus tsim nyob rau hauv ob qho tib si ACI thiab ASTM systems rau cov khoom no.

 

SCS14 sib npaug li cas?

SCS14 yog JIS tus qauv rau cam khwb cia hlau stainless, sib npaug rau CF8M, thiab muaj cov tshuaj zoo sib xws rau 316 stainless hlau tab sis yog optimized rau casting. Nws yog ib qho khoom siv rau cov khoom xws li lub cev lub cev, lub twj tso kua mis, thiab lwm yam uas yuav tsum tau muaj kev tiv thaiv corrosion siab, tshwj xeeb tshaj yog nyob rau hauv ib puag ncig chloride.

Txuj	Qib sib npaug	Hom
ASTM	CF8M	Cam khwb cia version ntawm 316 stainless hlau
EN (Tebchaws Europe)	1.4408	Cast molybdenum -muaj stainless hlau
JIS (Nyiv)	SCS 14	Cam khwb cia austenitic stainless hlau
W. Nr	1.4408	Sib npaug rau CF8M

 

Dab tsi yog ASTM sib npaug ntawm 316 stainless hlau?

ASTM cov qauv sib raug rau 316 stainless hlau suav nrogASTM A240 Hom 316(phaj, ntawv, thiab sawb) los yog ASTM A276 Hom 316 (bars thiab rods). Nyob ntawm cov khoom tshwj xeeb, lwm cov qauv coj los kuj muaj, xws liASTM A 312 TP 316 1cev. Qib "316" yog hais txog cov tshuaj muaj pes tsawg leeg, thaum ASTM cov qauv qhia cov khoom siv thiab cov khoom.

 

Tshuaj muaj pes tsawg leeg ntawm SCS14 (CF8M sib npaug)

Lub ntsiab	SCS14 / CF8M (%)
C	Tsawg dua lossis sib npaug li 0.08
Cr	18.0 – 21.0
Ni	9.0 – 12.0
Mo	2.0 – 3.0
Mn	Tsawg dua los yog sib npaug li 1.5
Si	Tsawg dua los yog sib npaug li 1.5
P	Tsawg dua lossis sib npaug li 0.04
S	Tsawg dua los yog sib npaug li 0.03

 

SCS14 stainless hlau Mechanical Properties

Khoom	Tus nqi
Tensile zog	Ntau dua lossis sib npaug li 485 MPa
Yield zog	Ntau dua lossis sib npaug li 205 MPa
Elongation	Ntau dua lossis sib npaug li 30%
Hardness	Tsawg dua lossis sib npaug li 197 HB

 

Puas yog SCS14 zoo ib yam li 316 stainless hlau?

Yog lawm, SCS14 yog qhov sib npaug ntawm 316 stainless hlau. SCS14 yog Japanese qauv tsim rau cam khwb cia 316 stainless hlau, uas paub txog nws superior corrosion kuj vim qhov sib ntxiv ntawm molybdenum. Qhov no ua rau nws yog ib qho khoom siv rau cov khoom siv uas yuav tsum tau ua kom muaj zog thiab ua haujlwm rau cov dej hiav txwv thiab lwm yam corrosive.

 

Qhov txawv ntawm SCS13 thiab SCS14 yog dab tsi?

Qhov sib txawv tseem ceeb yog SCS14 muaj qhov zoo dua corrosion thiab pitting tsis kam piv rau SCS13. SCS13 yog sib npaug rau cov khoom siv SUS304 stainless hlau thiab yog siv rau kev lag luam kev lag luam, thaum SCS14 yog sib npaug rau SUS316 thiab zoo dua haum rau ntau corrosive ib puag ncig xws li seawater los yog acidic khib nyiab.

 

CF8M vs 316

CF8M yogcam khwb cia hlau sib npaugntawm wrought (forged los yog dov)316 stainless hlau. Lawv muab cov tshuaj pleev ib ce zoo sib xws uas muaj 2% mus rau 3% molybdenum, tab sis lawv txawv los ntawm kev tsim khoom thiab cov kev txwv me me.

 

Dab tsi yog qhov sib npaug ntawm CF3M?

Lub forged (wrought) sib npaug ntawm CF3M yog Qib F316L raws li ASTM A182, uas sib haum rau tus qauv 316L stainless hlau. CF3M yog lub npe cam khwb cia (raws li ASTM A351 lossis A743) uas muaj cov pa roj carbon tsawg thiab molybdenum, sib piv cov chemistry thiab corrosion kuj ntawm wrought 316L.

 

Qhov twg zoo dua, CF8M lossis CF3M?

Tsis yog CF8M lossis CF3M yog universally "zoo dua"; kev xaiv nyob ntawm koj qhov project. CF8M (cam khwb cia qib rau 316) muaj cov pa roj carbon ntau dua (txog 0.08%) kom muaj zog zoo dua ntawm qhov kub thiab txias. CF3M (cam khwb cia qib rau 316L) muaj ultra- cov pa roj carbon tsawg (txog 0.03%) los tiv thaiv cov weld lwj thiab intergranular corrosion thaum vuam.