Qhov twg zoo dua, SUS304 lossis SS304?

 

SUS304 stainless hlauyog lub npe hu ua austenitic stainless hlau feem ntau siv dav hauv ntiaj teb raws li Japanese Industrial Standard (JIS), sib npaug rau ASTM 304 hauv Tebchaws Meskas lossis 1.4301 hauv Tebchaws Europe. Feem ntau hu ua 18/8 stainless hlau, nws muaj kwv yees li 18% chromium thiab 8% npib tsib xee. Nws feem ntau tsis yog-magnetic nyob rau hauv lub xeev annealed, tab sis tej zaum yuav ua tau me ntsis sib nqus tom qab txias ua hauj lwm. Raws li kev siv tsis tu ncua, nws tuaj yeem tswj hwm kev ncaj ncees ntawm qhov kub txog 870℃(1600℃F); nyob rau hauv kev siv tas mus li, nws tuaj yeem tswj hwm kev ncaj ncees ntawm qhov kub txog 925℃(1700℃F). Nws tuaj yeem ua tiav rau hauv ntau yam khoom siv, nrog rau cov phaj, coils, kav, tuav, thiab xaim.

 

 

Lub ntiaj teb sib npaug rauSIB 304(Stainless Steel 304) yog tus qauv European EN 1.4301 (los yog X5CrNi18-10) thiab Japanese JIS SUS304. Nws tseem yog lub npe hu ua lag luam li 18/8 stainless hlau vim nws cov nominal muaj pes tsawg leeg ntawm 18% chromium thiab 8% npib tsib xee.

 

 

Feature	ASTM A240 Hom 304	JIS G4303 SUS304
Keeb kwm	USA (ASTM International)	Nyiv (Japanese Industrial Standards)
Daim ntawv khoom	Phaj, Sheet, thiab Sawb	Stainless hlau Bars
Siv dav	Cov hlab ntsha siab, lub tank cia, architectural	Machined qhov chaw, fasteners, structural tuav

 

TSI 304 VS. SUS304 Stainless hlau: Cov tshuaj muaj pes tsawg leeg (wt%)

ASTM A240 (SS 304): qhia txog Si cov ntsiab lus tsawg dua lossis sib npaug li 0.75%, JIS G4304 (SUS304): qhia txog Si cov ntsiab lus tsawg dua lossis sib npaug li 1.00%. Tsis tas li ntawd, ASTM feem ntau muaj qhov txwv siab tshaj qhov yuav tsum tau muaj rau nitrogen (N) cov ntsiab lus, thaum qee cov qauv JIS tsis tas yuav tsum tau teev tseg.

Element	ASTM A240 SS 304 Cov Lus Qhia	JIS G4304 SUS304
Cov pa roj carbon (C)	Tsawg dua lossis sib npaug li 0.08	Tsawg dua lossis sib npaug li 0.08
Manganese (Mn)	Tsawg dua lossis sib npaug li 2.00	Tsawg dua lossis sib npaug li 2.00
Phosphorus (P)	Tsawg dua lossis sib npaug li 0.045	Tsawg dua lossis sib npaug li 0.045
Sulfur (S)	Tsawg dua lossis sib npaug li 0.030	Tsawg dua lossis sib npaug li 0.030
Silicon (Si)	Tsawg dua lossis sib npaug li 0.75	Tsawg dua lossis sib npaug li 1.00
Chromium (Cr)	18.0 – 20.0	18.0 – 20.0
Nickel (Ni)	8.0 – 10.5	8.0 – 10.5
Nitrogen (N)	Tsawg dua lossis sib npaug li 0.10	Tsis Qhia

 

TSI 304 VS. SUS304 Stainless Hlau: Mechanical Properties

Khoom	ASTM A240 SS 304 Cov Lus Qhia	JIS G4303 SUS304
Tensile zog (min)	515 MPa (75 ksi)	520 MPa rau
Yield zog (0.2% Offset)	205 MPa (30 ksi)	205 MPa
Elongation (hauv 50mm, min)	40 %	40 %
Hardness (max)	HBW Tsawg dua lossis sib npaug rau 201 lossis HRB Tsawg dua lossis sib npaug rau 92	HB Tsawg dua lossis sib npaug rau 187 (rau cov tshuaj kho)

 

Puas muaj qhov sib txawv ntawm kev tiv thaiv corrosion ntawm SS304 thiab SUS304?

Corrosion kuj feem ntau nyob ntawm cov ntsiab lus ntawm chromium (Cr) thiab npib tsib xee (Ni). Txij li thaum lawv cov Cr (18.0-20.0%) thiab Ni (8.0-10.5%) ntau yam yog tib yam, lawv ua tau zoo ib yam nyob rau hauv tib qho chaw corrosive.

 

SS 304 vs SUS304 Stainless hlau: Kub Resistance

Ob leeg stainless hlau muaj kev tiv thaiv kub zoo heev, tuav lub zog siab thiab oxidation kuj nyob rau hauv siab - qhov kub thiab txias. Lawv tuaj yeem tiv taus qhov kub thiab txias mus txog li ntawm 870℃thiab qhov kub thiab txias ntawm ib ncig ntawm 925 degree.

Mechanical Properties at Elevated Temperatures

Kub (degree)	Tensile zog (MPa)	Yield zog (MPa)	Elongation (%)
20	Ntau dua lossis sib npaug li 520	Ntau dua lossis sib npaug rau 205	Ntau dua lossis sib npaug li 40
100	480	180	38
200	440	160	35
300	400	140	30
400	370	130	25
500	340	120	20
600	310	110	18
700	280	100	15

 

SS 304 vs SUS304 Stainless hlau: Weldability

Ob leeg SS 304 thiab SUS304 muaj qhov zoo tshaj plaws weldability thiab tuaj yeem welded siv ntau yam txuj ci, suav nrog TIG vuam, MIG vuam, thiab arc vuam. Lawv cov ntsiab lus nickel siab heev pab txo qhov kev pheej hmoo ntawm tshav kub- cuam tshuam thaj chaw embrittlement, kom ntseeg tau tias cov cuab yeej siv zog tau tswj xyuas tom qab vuam.

 

SS 304 vs SUS304 Stainless hlau: Formability

Ob qib muab cov formability zoo thiab tsim nyog rau stamping, dabtsi yog khoov, thiab machining, ua rau lawv zoo tagnrho rau kev tsim complex-zoo li tus Cheebtsam. Vim nws qhov kev ua haujlwm qis me ntsis- tus nqi hardening thaum ua haujlwm txias, SUS304 tuaj yeem muab qhov zoo me me hauv cov ntawv thov txias.

 

SS 304 vs SUS304 Stainless hlau: Daim ntawv thov

SUS304 feem ntau yog siv nyob rau hauv Nyiv thiab lwm lub khw Asian vim nws ua raws li JIS cov qauv. Cov ntawv thov muaj xws li cov khoom siv ua zaub mov, cov dab dej hauv chav ua noj thiab cov tais diav, vaj tsev cladding, thiab cov thawv tshuaj.

SS304 yog tus qauv stainless hlau qib hauv North America thiab Europe thiab feem ntau ua raws li cov qauv ASTM. Nws yog dav siv hauv cov khoom siv kho mob thiab tshuaj, khoom noj khoom haus thiab dej haus ua cov cuab yeej, kho kom zoo nkauj vaj tsev, thiab khoom siv hauv tsev.

 

 

Vim li cas SUS304 kim dua SS304?

Tus nqi sib txawv feem ntau tsis yog vim "tus qauv" nws tus kheej, tab sis vim tias SUS304 tsim nyob rau hauv Nyiv tej zaum yuav kim dua vim logistics thiab cov nqi hwm. Nws kuj tseem nruj dua li ASTM hauv qee qhov kev kam rau siab (xws li thickness precision). Rau precision ultra- cov ntawv nyias siv hauv kev lag luam hluav taws xob, cov khoom lag luam Japanese feem ntau muaj cov ncauj lus kom ntxaws ntxiv.

 

Rau feem ntau cov ntawv thov kev lag luam, ob cov ntaub ntawv no suav tias yog sib hloov. GNEE stainless hlau feem ntau yog "dual- ntawv pov thawj," txhais tau tias lawv ua tau raws li ASTM thiab JIS cov qauv.

ASTM A240 tsuas yog siv tau rau cov khoom tiaj tus (daim ntawv / phaj). Yog tias koj xav tau JIS qhov sib npaug rau cov ntaub ntawv, thov xa mus rau JIS G4304 (kub-rolled) lossis JIS G4305 (txias- dov).

 

 

Raws li tus neeg muag khoom tshwj xeeb, peb muab cov ntaub ntawv uas muaj "dual ntawv pov thawj," ua raws ib txhij nrog ob qho tib si ASTM A240 / A276 thiab JIS G4303 / 4304 / 4305 tus qauv. Qhov no ua kom ntseeg tau tias koj cov khoom ntsib tsis muaj kev cuam tshuam kev cai thaum xa tawm mus rau North American thiab Asian lag luam.

 

Peb tuav ib qho tseem ceeb, xyoo- cov khoom muag ib puag ncig ntawm 304 / SUS304 cov ntaub ntawv qib hauv ntau yam tshwj xeeb, npaj rau kev xa tawm tam sim txhua lub sijhawm. Ntiaj teb no Logistics: Peb ua haujlwm tswj tag nrho cov ntaub ntawv xa tawm thiab muab cov ntsiab lus hloov pauv thoob ntiaj teb kev lag luam (Incoterms), suav nrog FOB, CIF, thiab DDP.

 

SUS304 Stainless Hlau Phaj Specifications

Feature	ASTM A240 SS 304 Cov khoom siv	JIS G4304 / G4305 SUS304
Daim ntawv khoom	Phaj, Sheet, thiab Sawb	Kub Rolled (G4304) / Cold Rolled (G4305)
Thickness Ntau	0.3mm-100 hli	0.3mm-100 hli
Txheem tiav	2B, BA, No.4, Hairline, No.1	2B, BA, No.4, HL, No.1
Tolerance Standard	ASTM A 480 Cov Lus Qhia Tshwj Xeeb	JIS G4304/4305 Txuj
Ntug mob	Mill Ntug / Slit Ntug	Mill Ntug / Slit Ntug

 

 

Txhua qhov khoom xa tuaj yog nrog rau Qib 3.1 Mill Test Certificate (MTC) thiab dhau 100% PMI (Positive Material Identification) kuaj ua ntej xa khoom xa tuaj.

Kev Pabcuam Ntim:

Peb siv cov khoom ntim khoom muaj zog, seaworthy -xws li ntoo pallets lossis crates- kom ntseeg tau tias koj cov khoom tsis raug puas tsuaj thoob plaws hauv tag nrho cov txheej txheem kev thauj mus los.