Dab tsi yog 1.4108 cov khoom sib npaug?

Apr 07, 2026

Tso lus

1.4108 stainless hlau, feem ntau hu ua 420F lossis UNS S42020, yog pub dawb -machining martensitic stainless hlau tsim los rau siab-kev ceev machining daim ntawv thov uas yuav tsum tau muaj corrosion kuj thiab muaj peev xwm yuav hardened mus rau qib siab zog. Nrog nws cov sulfur ntxiv los txhim kho machinability, nws muaj kev ua tau zoo dua qub dua li tus qauv 420 thaum tuav cov khoom zoo thiab kev kho cua sov. Nws yog cov khoom ntawm kev xaiv rau precision Cheebtsam uas yuav tsum tau complex machining ua hauj lwm, xws li screws, bolts, shafts, thiab valve qhov chaw, qhov twg ob qho tib si machinability thiab hardenability yog ib qho tseem ceeb.

Txuj	Qib sib npaug
EN (Tebchaws Europe)	1.4108
ASTM / AISI (USA)	420F, UNS S42020
JIS (Nyiv)	SUS 420 F
Lub Npe	420F

Element	C	Si	Mn	P	S	Cr	Mo (yeem)
Cov ntsiab lus (%)	0.30 - 0.40	Tsawg dua los yog sib npaug rau 1.0	Tsawg dua lossis sib npaug li 1.25	Tsawg dua lossis sib npaug li 0.06	Ntau dua lossis sib npaug li 0.15	12.0 - 14.0	Tsawg dua lossis sib npaug li 0.60

Qhov xwm txheej	Yield zog (Rp0.2)	Tensile zog (Rm)	Elongation (A)	Hardness (HRC)
Annealed	~ 380 MPa	~ 690 MPa	~ 15%	~ 25 HRC
Hardened & Tempered	Ntau dua lossis sib npaug li 540 MPa	Ntau dua lossis sib npaug li 740 MPa	Ntau dua lossis sib npaug li 12%	48 - 55 HRC

Machinability zoo heev:Sulfur ntxiv muab kev ua kom zoo dua qub dua li tus qauv 420, tso cai rau kev txiav nrawm dua, lub neej ntev dua, thiab ua tiav qhov zoo dua hauv kev ua haujlwm tsis siv neeg ntsia hlau.

High Hardness thiab Hnav Resistance:Nws tuaj yeem kho cua sov kom ua tiav siab hardness (48-55 HRC), muab kev hnav zoo thiab ntug tuav rau kev txiav daim ntaub ntawv.

Nruab nrab Corrosion Resistance:Muab qhov tsim nyog tiv thaiv dej, tshuaj me me, thiab huab cua puag, tab sis tsis haum rau qhov chaw muaj corrosive hnyav.

Sib nqus thiab Hardenable:Muaj zog sib nqus thiab teb zoo rau kev kho cua sov rau hardening, nrog zoo los ntawm - muaj peev xwm hardening.

Fasteners thiab Fittings:Screws, bolts, txiv ntseej, thiab threaded Cheebtsam ua los ntawm kev siab -machining ceev.

Precision Cheebtsam:Gears, shafts, valve stems, thiab ntsuas qhov xav tau zoo machinability thiab hardenability.

Cutlery thiab Blades:Riam, txiab, thiab cov hniav uas yuav tsum tau muaj kev tiv thaiv corrosion.

Surgical Instruments:Cov cuab yeej kho hniav thiab cov cuab yeej phais yuav tsum muaj kev tuav tuav zoo.

General Engineering:Cheebtsam qhov twg machinability yog qhov tseem ceeb thaum tswj hardenability.

420F muaj qhov sib npaug ntawm cov khoom ntawm 420 thiab 416. Piv nrog rau tus qauv 420, 420F muab kev ua haujlwm zoo dua qub (kwv yees li 80% ntawm B1112 vs . 60% rau 420) vim nws cov sulfur ntxiv, tab sis nrog me ntsis corrosion kuj. Muab piv rau 416, 420F muaj cov ntsiab lus carbon ntau dua (0.30-0.40% vs. Tsawg dua lossis sib npaug li 0.15%), tso cai rau nws ua kom muaj zog ntau dua (55 HRC vs . 40 HRC) thiab hnav tsis kam zoo dua . 420F feem ntau xaiv rau cov ntawv thov uas xav tau ob qho tib si zoo machinability thiab siab tshaj plaws hardness 46, thaum lub zog siab tshaj plaws yog 40, thiab qhov siab tshaj plaws yog 16. Maximum hardness yam tsis muaj machinability yuav tsum tau.

Cov ntsiab lus sulfur siab (Ntau dua lossis sib npaug li 0.15%) uas txhim kho kev ua haujlwm kuj tseem tsim cov manganese sulfide inclusions, uas tuaj yeem ua raws li qhov chaw pib rau pitting corrosion. Qhov no txo qhov kev tiv thaiv corrosion tag nrho piv rau tus qauv 420. Yog li ntawd, 420F tsis pom zoo rau ib puag ncig corrosive heev, cov ntawv thov yuav tsum tau ua tiav qhov kev ua tiav siab rau kev tiv thaiv corrosion, los yog qhov chaw yuav raug rau cov chlorides, acids, los yog marine tej yam kev mob. Rau cov ntawv thov no, tus qauv 420 lossis lwm qib uas muaj kev tiv thaiv corrosion zoo dua yuav tsum raug txiav txim siab.

Kev kho cua sov rau 420F suav nrog:

Hardening:Austenitize ntawm 980-1030 degree, tuav lub sijhawm txaus, ces roj quench

Tempering:Kub tam sim ntawd tom qab quenching ntawm 150-370℃nyob ntawm qhov xav tau hardness

Tsawg tempering kub (150-250 degree): Qhov siab tshaj plaws hardness (52-55 HRC)

Kub siab dua (300-370 degree): me ntsis qis hardness nrog txhim kho toughness

Tsis txhob tempering ntawm 400-550℃vim embrittlement

Annealing:Thaum tshav kub kub rau 830-880 degree, txias maj mam nyob rau hauv lub cub tawg rau siab tshaj plaws machinability

Muab ob npaug rau tempering yog pom zoo kom txo kev ntxhov siab thiab qhov ruaj khov

GNEE Steel muab khoom pub dawb -machining 420F (1.4108) stainless hlau hauv bar, hlau, thiab pas nrig cov ntaub ntawv, zoo tagnrho rau siab - ntim machining daim ntawv thov uas yuav tsum tau hardenability zoo. Peb muab cov ntaub ntawv pov thawj tag nrho (EN 10204 3.1) thiab kev txhawb nqa suav nrog kev txiav txiav thiab machining kev pabcuam. Yog tias koj muaj kev xav tau, thov koj xav tiv tauj peb.