304 ss vs 316 ss yeeb nkab: yield zog

Yog tias koj tsuas yog tsom rau tus nqi sib txawv ntawm 304 thiab 316 stainless hlau kav thaum yuav lawv, koj tuaj yeem pom qhov tseeb tseem ceeb: lawv cov txiaj ntsig tau zoo yuav luag zoo ib yam. Txawm li cas los xij, hauv qhov tiag -cov haujlwm hauv ntiaj teb, xaiv cov qib hlau tsis raug tuaj yeem ua rau muaj kev xeb ua ntej ntxov, cov nqi kho mob siab dua, thiab txawm tias lub sijhawm poob haujlwm.

Yog li, dab tsi tseem ceeb rau tus neeg yuav khoom? Lub zog tawm los yog cov cuab yeej cuab tam tseem ceeb thaum yuav cov kav hlau stainless, cuam tshuam ncaj qha rau kev nyab xeeb ntawm cov qauv, xaiv phab ntsa thickness, thiab ntev - kev ua haujlwm ntev.

 

Dab tsi yog qhov yield zog ntawm 304 stainless hlau yeeb nkab?

Lub zog tawm los (0.2% offset) ntawm 304 stainless hlau yeeb nkab feem ntau yog tsawg kawg 205 MPa (30,000 psi), thiab tuaj yeem ncav cuag 215 MPa (31,200 psi) nyob ntawm cov qauv tshwj xeeb (xws li ASTM A312 lossis A403). Nws muaj kev tiv thaiv corrosion zoo heev thiab feem ntau yog siv rau hauv siab - siab / siab - kev siv kub xws li roj, roj, thiab kev ua zaub mov.

 

Dab tsi yog qhov Yield Strength ntawm 316 Stainless Hlau Round Pipe?

Lub zog tawm los ntawm 316 stainless hlau puag ncig yeeb nkab yog feem ntau qhov tsawg kawg nkaus ntawm 205 MPa (30,000 psi). Qhov qis-carbon variant, 316L, muaj qhov qis qis qis qis zog ntawm 170-190 MPa (25,000-29,700 psi). Ob qib yog siv nyob rau hauv high-corrosion, tshuaj, thiab marine daim ntaub ntawv, nrog 316L feem ntau xaiv kom tsis txhob hnov ​​qab thaum vuam.

 

304 SS vs 316 SS Yeeb Nkab: Chemical Composition (%)

Element	304 Stainless hlau (UNS S30400)	316 Stainless hlau (UNS S31600)
Cov pa roj carbon (C)	Tsawg dua los yog sib npaug li 0.08	Tsawg dua los yog sib npaug li 0.08
Silicon (Si)	Tsawg dua lossis sib npaug li 1.00	Tsawg dua lossis sib npaug li 1.00
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
Chromium (Cr)	18.0 – 20.0	16.0 – 18.0
Nickel (Ni)	8.0 – 10.5	10.0 – 14.0
Molybdenum (hli)	-	2.0 – 3.0

 

304 SS vs 316 SS Yeeb Nkab: Mechanical Properties

Khoom	304 Stainless hlau yeeb nkab	316 Stainless hlau yeeb nkab
Yield zog (0.2% Offset)	Ntau dua lossis sib npaug li 205 MPa	Ntau dua lossis sib npaug li 205 MPa
Tensile zog	Ntau dua lossis sib npaug li 515 MPa	Ntau dua lossis sib npaug li 515 MPa
Elongation	Ntau dua lossis sib npaug li 35%	Ntau dua lossis sib npaug li 35%
Hardness	Tsawg dua lossis sib npaug rau 92 HRB	Tsawg dua lossis sib npaug li 90 HRB

 

304 SS vs 316 SS Yeeb Nkab: Lub cev muaj zog

Khoom	304 Stainless hlau	316 Stainless hlau
Qhov ntom	8.00 g / cm³	8.00 g / cm³
Melting Point	1400 - 1450 degree	1375 - 1400 degree
Thermal conductivity	16.2 W/m·K	16.3 W/m·K
Hluav taws xob Resistivity	0.72 µΩ·m	0.74 µΩ·m
Modulus ntawm Elasticity	193 gp ua	193 gp ua

 

304 SS vs 316 SS Yeeb Nkab: Corrosion Resistance

316 stainless hlau (SS) yeeb nkab muaj kev tiv thaiv corrosion zoo tshaj rau 304 SS, tshwj xeeb tshaj yog nyob rau hauv cov tshuaj chloride, marine, thiab acidic ib puag ncig, vim yog ntxiv ntawm 2-3% molybdenum. Thaum 304 zoo tagnrho rau kev siv dav dav, tus nqi- siv tau zoo, sab hauv tsev, thiab cov dej tsis huv, 316 yog tus qauv rau kev ua tshuaj lom neeg thiab siab - raug, ib puag ncig hnyav.

 

304 SS vs 316 SS Yeeb Nkab: Nqi

316 stainless hlau kav feem ntau yog 20-35% kim dua 304 kav. Tus nqi siab dua no yog vim 316 qhov kev tiv thaiv corrosion zoo tshaj, muab los ntawm 2-3% Molybdenum thiab ntau dua cov ntsiab lus nickel. Thaum 316 yog tus nqi qis dua, nws yog qhov tsim nyog rau high-chloride lossis marine ib puag ncig los tiv thaiv kev ua tsis tiav ntxov.

 

304 SS vs 316 SS Yeeb Nkab: Kev siv

Thaum xaiv cov khoom siv kav dej, 304 yog qhov tsim nyog rau sab hauv tsev, cov dej tsis huv, lossis tsis yog - cov khoom siv tshuaj corrosive, thaum 316 yog qhov kev xaiv zoo tshaj plaws rau marine, ntug hiav txwv dej, los yog cov tshuaj corrosive heev. Txawm hais tias ob qho tib si zoo sib xws hauv kev siv tshuab, 316 muaj lub neej ntev dua nyob rau hauv cov xwm txheej hnyav thiab yuav tsum tau saib xyuas tsawg dua.

 

304 thiab 316 SS yeeb nkab lwm tus neeg thiab manufacturers

GNEE cov khoom raug xa tawm mus rau ntau dua 70 lub teb chaws thoob ntiaj teb (xws li cov teb chaws Asia, Middle East, Brazil, thiab EU).

Feem ntau Tshuag: Feem ntau 304/316L specifications (xws li 1/2" - 12" SCH10S/40S) feem ntau yog nyob rau hauv Tshuag, nrog rau cov khoom xa tuaj hauv tsawg li 3-7 hnub.

Cov Khoom Siv Ua tiav: GNEE tuaj yeem muab kev sib txuam 304/316 flanges, lub luj tshib, tees, thiab li qub, ua kom cov khoom sib xws thoob plaws tag nrho cov kav dej thiab txo qhov hassle ntawm kev sib cais khoom rau cov neeg siv khoom.

Kev kho cov yeeb nkab kawg: Beveling, Threading, Grooving.

 

GNEE siv dual tshuaj xyuas rau cov khoom xa tawm:

Hauv -Kev Ntsuas hauv tsev: EN 10204 3.1 cov ntaub ntawv pov thawj (MTC) yog muab nrog txhua qhov khoom xa tuaj.

Thib peb-Kev Xeem Ua Haujlwm: GNEE txhawb nqa thiab nquag pab cov neeg siv khoom nrog SGS, BV, thiab TUV xeem.

Kev kuaj lub cev muaj xws li PMI (Physical Instrumentation), kuaj hydrostatic, kuaj ultrasonic (UT), eddy tam sim no kuaj (ET), thiab intergranular corrosion testing.

Tag nrho peb cov stainless hlau seamless tubing yog ntim raws li cov qauv thoob ntiaj teb los tiv thaiv kev puas tsuaj lossis poob. Los ntawm lub neej ntawd, peb ntim cov tubing tiav ua ke hauv cov khoom siv cov hnab yas tuab.

Rau qee qhov tshwj xeeb tubing uas yooj yim kis, khawb, raug siab, lossis yooj yim puas thaum tuav, peb pom zoo kom siv ntoo crates los tiv thaiv.