Dab tsi yog daim ntawv thov ntawm 1.4003 stainless hlau?

Apr 02, 2026

Tso lus

1.4003 stainless hlau, feem ntau hu ua 3Cr12 los yog UNS S40977, yog ib tug lean duplex stainless hlau uas combines cov zoo corrosion kuj ntawm stainless hlau nrog lub zog thiab nqi -kev ua tau zoo ntawm cov qauv hlau. Nrog nws cov khoom sib npaug ferritic- austenitic microstructure thiab cov ntsiab lus tsis tshua muaj npib tsib xee, nws muaj kwv yees li ob npaug ntawm cov khoom muaj zog ntawm tus qauv 304 stainless hlau thaum muab cov weldability zoo, zoo heev qaug zog tiv thaiv, thiab superior puas. Qhov no ua rau nws yog qhov kev xaiv zoo tshaj plaws rau kev siv cov txheej txheem, cov khoom siv mining, thiab kev lag luam tsheb thauj mus los uas yuav tsum muaj lub zog siab thiab nruab nrab corrosion kuj.

Txuj	Qib sib npaug
EN (Tebchaws Europe)	1.4003
ASTM / AISI (USA)	3Cr12, UNS S40977
Lub Npe	3 cr12

Element	C	Si	Mn	P	S	Cr	Ni	N
Cov ntsiab lus (%)	Tsawg dua lossis sib npaug li 0.03	Tsawg dua los yog sib npaug rau 1.0	Tsawg dua los yog sib npaug li 1.5	Tsawg dua los yog sib npaug li 0.04	Tsawg dua lossis sib npaug li 0.015	10.5 - 12.5	0.5 - 1.5	Tsawg dua lossis sib npaug li 0.03

Khoom	Yield zog (Rp0.2)	Tensile zog (Rm)	Elongation (A)	Hardness (HB)
Tus nqi	Ntau dua lossis sib npaug li 350 MPa	450 - 650 MPa	Ntau dua lossis sib npaug li 20%	Tsawg dua los yog sib npaug li 200

Siab zog:Muab kwv yees li ob npaug ntawm qhov kev tawm dag zog ntawm 304 stainless hlau (350 MPa vs . 200 MPa), tso cai rau kev txo qhov hnyav thiab cov ntu nyias nyias hauv kev siv cov qauv.

Zoo Corrosion Resistance:Muab kev tiv thaiv corrosion zoo ib yam li 304 nyob rau hauv ntau qhov chaw, tshwj xeeb tshaj yog tiv thaiv atmospheric corrosion, tshuaj me me, thiab tso pa tawm.

Zoo Abrasion thiab Erosion Resistance:Cov qauv duplex muab kev tiv thaiv zoo rau hnav thiab yaig, ua rau nws tsim nyog rau kev siv cov khoom siv.

Zoo Weldability thiab Formability:Yuav welded siv cov txheej txheem ntau yam tsis muaj preheating, thiab nthuav tawm zoo formability rau khoov thiab fabrication.

Structure Engineering:Cov choj, txoj kev taug kev, tes tuav, thiab cov khoom siv hauv tsev uas xav tau lub zog siab.

Kev thauj mus los:Cov tsheb ciav hlau wagons, tsheb thauj khoom trailer, thauj khoom ntim, thiab tsheb thav duab.

Mining thiab Material Handling:Chutes, hoppers, cov ntxaij vab tshaus, conveyors, thiab cov khoom siv ua haujlwm.

Cia Tank:Tank rau tej khoom khib nyiab, dej, thiab tshuaj me me.

Architectural:Lub tsev cladding, ru tsev, thiab kev txhawb nqa.

Kev ua zaub mov:Cov cuab yeej tuav cov khoom noj qhuav thiab ua haujlwm me me.

3Cr12 muaj ntau zog tawm los ntau dua li ntawm 304 thiab 410, nrog kwv yees li ob npaug ntawm cov khoom muaj zog ntawm 304. Nws muab kev tiv thaiv corrosion piv rau 304 nyob rau hauv ntau qhov chaw, tshwj xeeb tshaj yog rau atmospheric raug thiab cov tshuaj me me. Tsis zoo li 410, uas yog martensitic thiab yuav tsum tau post-weld kev kho cua sov, 3Cr12 muaj weldability zoo heev. Nws yog tus nqi ntau dua - siv tau ntau dua 304 vim nws cov ntsiab lus qis nickel thiab chromium, ua rau nws yog ib qho kev siv nyiaj txiag rau cov ntawv thov uas tsis tas yuav muaj kev tiv thaiv corrosion siab tshaj . 3Cr12 yog hlau nplaum, thaum 304 tsis yog{17}} hlau nplaum.

3Cr12 muaj qhov zoo tshaj plaws weldability siv txhua txoj hauv kev xws li TIG, MIG, SMAW, thiab SAW. Cov ntsiab lus tseem ceeb suav nrog:

Tsis xav tau preheating rau feem ntau thicknesses

Muab cov hlau sib xyaw ua ke muaj, txawm tias austenitic fillers (309L) tuaj yeem siv los txhim kho ductility

Kev siv hluav taws xob tsawg yog pom zoo los tswj cov qauv duplex

Interpass kub yuav tsum khaws cia qis dua 200 degree

Tom qab-weld kev kho cua sov tsis tas yuav tsum muaj rau feem ntau daim ntawv thov

Kev tiv thaiv zoo rau hydrogen-induced cracking

Haum rau vuam hauv txhua txoj haujlwm

3Cr12 yog tsim rau kev pab cuam los ntawm cryogenic kub txog li 300℃(570℃F). Nws tuav zoo toughness ntawm qis kub thiab zoo zog ntawm siab kub nyob rau hauv no ntau yam. Rau cov ntawv thov uas xav tau qhov kub thiab txias, cov qib nrog cov ntsiab lus chromium siab dua tuaj yeem tsim nyog. Cov khoom pov thawj zoo tiv thaiv qhov ntsuas txog li 700 degree, tab sis cov khoom siv tshuab pib degrade saum 300 degree.

GNEE Steel cov khoom siv tus nqi -zoo 3Cr12 (1.4003) stainless hlau hauv phaj, ntawv, bar, thiab cov qauv siv rau kev thov cov qauv siv thiab kev lag luam. Peb muab cov ntaub ntawv pov thawj tag nrho (EN 10204 3.1) thiab kev txhawb nqa suav nrog kev txiav, khoov, sib sau, thiab kev pabcuam vuam. Yog tias koj muaj kev xav tau, thov koj xav tiv tauj peb.