Lub Npe STAINLESS 446

Apr 16, 2020

446 yog lub siab chromium ferritic tshav kub kub alloy nrog zoo heev tiv taus oxidation, sulfidation thiab lwm yam kev kub xeb. Qib no feem ntau siv tau li ntawm 1500 - 2100 ° F, txawm hais tias nws qhov kub ntawm lub zog muaj peev xwm tsawg heev. 446 tsuas yog cov cua sov tiv taus uas yuav zam rau molten tooj thiab tooj dag. Raws li nrog lwm qhov siab siab chromium ferritic stainless, 446 embrittles loj rau hauv 700-1000 ° F kub (885 ° F embrittlement). 446 yuav tsum tsis txhob siv nyob rau hauv qhov kub no tshwj tsis yog muaj ze li ua tiav chav poob ntawm huab cua txias ductility yuav thev taus ntev. Sigma theem embrittlement tshwm sim thaum lub sijhawm ntev raug ntev hauv 1000-1300 ° F ntau.

446 muaj qhov kub hloov-mus-nkig feem cuam tshuam kev hloov pauv kub. Yog li no, cov kev ua tiav thiab dabtsi yog khoov yog aided los ntawm tsawg txoj kev nrawm, kev npaj ntawm ntug thiab preheating rau 250-400 ° F. Kev ua kom ncaj ncees, thaum tsim nyog yuav tsum ua ntawm 1550-1650 ° F ua raws li kev txias txias.

Vuam tuaj yeem ua tiav los ntawm cov kev siv ua ib hom. Kev ntsuas khoom ua ntej thiab xa xov txog 300-600 ° F yog qhov pab tau. Austenitic weld fillers, xws li AWS E 310 lossis E 312 feem ntau pom tias yuav ntau weld deposit ductility.

Chemistry

	Cr	C	N	Mn	Si	P	S	Fe
MIN	23.0	-	-	-	-	-	-	-
MAX	27.0	0.15	0.25	1.5	1.0	0.04	0.03	Sib npaug

Cov Lus Qhia Tshwj Xeeb

ASTM A 240,ASTM A 276,ASTM A 276 Zauv A,ASTM A 276 Kev S
EN 1. 4763.
UNS S 44600
Werkstoff 1. 4763 Qho.

Cov lus nug

446 Pav Ca, 446 Phaj, 446 Round Bar, 446 Square Bar

Cov Npe Sib Koom

446 Stainless

Nta

Idation Kev tiv thaiv oxidation los ntawm 2000 ° F

Ulf Sulfidation tsis kam

Thermal Zoo thermal conductivity

Istance Kuj tiv cov tooj liab

Tsis tshua muaj zog

Cov ntawv thov

· Lub nruab nrab ntsev rau hauv lub lauj kaub hluav taws xob

· Cov ntsuas zog

· Spouts rau conveying molten tooj liab alloys

Parts Cov roj hlawv cov ntu

Bers Chav sib xyaws

Ace Cov taws ua kom sov thiab ua kom sov

Cov phom sij da dej

B Cov baffles Boiler

S Cov iav pwm

Owers Cov tshuab xaws cov nyiaj

Lub cev nqaij daim tawv

Qhov ceev: 0. 270 lb / nti 3
Melting Point: 2640 - 2710 ° F

Kub Tiv Thaiv Kub, ° F	70	1200	1400	1600	1800
Cov Caj Npab * ntawm Kev Ntsuas Sov, hauv / hauv ° F x 10-6	-	6.3	6.4	6.7	7.3
Thermal Kev Coj Ua Btu • ft / ft 2 • hr • ° F	13.2	18.8	19.9	20.8	21.6
Modulus ntawm Elasticity Dynamic, psi x 106	30.4	20.0	-		-

* 70 ° F kom qhia qhov kub thiab txias.

Mechanical zog

Tus Neeg Sawv Cev Tensile Properties

Kub Tiv Thaiv Kub, ° F	70	1000	1100	1200	1300	1400
Lub Zog Tensile Muaj Zog, ksi	68	52.7	27.7	15.0	10.5	5.0
0. 2% Tawm Dag Zog, ksi	50	42.3	23	12	9.0	4.0
Kev Tshawb Fawb,%	30	27	65	90	113	128
Hardness, Rb	89 - 93	-	-			-