Steel 316L Mod Phaj yog dab tsi?

Hlau 316L Mod- kuj tau sau ua 316L Hloov kho lossis 316LM - yog ib qho chemistry- tswj hwm tus qauv AISI 316L austenitic stainless hlau. Lub ntsiab lus "Mod" (Hloov kho) qhia tias ib lossis ntau lub qhov rais muaj tshuaj lom neeg tau nruj lossis hloov pauv dhau tus qauv ASTM A240 316L specification kom ua tau raws li qhov yuav tsum tau muaj ntawm ib daim ntawv thov, code, lossis tus qauv kev yuav khoom.

What Is Steel 316L Mod Plate

Cov kev hloov kho feem ntau suav nrog: txwv tsis pub nitrogen rau qhov nqaim (feem ntau 0.06-0.10%) txhawm rau txhim kho qhov siab siab - qhov kub thiab txias creep zog; zawm cov pa roj carbon tsawg dua los yog sib npaug li 0.020% (vs. tus qauv Tsawg dua los yog sib npaug li 0.030%) rau superior weld-zone corrosion resistance; thiab txwv cov tramp cov ntsiab lus xws li boron, cobalt, thiab tooj liab rau qhov chaw-ib - lab qib rau nuclear- qib kev huv.

Tsis zoo li cov hlau sib txawv kiag li, 316L Mod khaws cov chemistry tseem ceeb ntawm nws qib niam txiv: 16-18% chromium, 10-14% nickel, thiab 2-3% molybdenum. Qhov kev hloov pauv li cas yog qhov tseeb ntawm cov kab no, thiab qhov sib ntxiv ntawm cov kev txwv sab saud ntawm cov ntsiab lus uas tsuas yog tsis tswj hwm hauv cov khoom tshwj xeeb.

Cov lus hauv qab no piv covASTM A 240 316Lspecification tiv thaiv nruj muaj pes tsawg leeg ntawm nuclear-qib 316L Mod (ib RCC-M / AFCEN los yog sib npaug sib npaug specification):

Element	ASTM A 240 - Txheem 316L	316L Mod (Nuclear / Siab-Purity)	Vim Li Cas Nws Tseem Ceeb
Cov pa roj carbon (C)	Tsawg dua lossis sib npaug li 0.030%	Tsawg dua lossis sib npaug li 0.020%	Tsawg C=txo qhov kev pheej hmoo ntawm kev nkag siab hauv HAZ
Silicon (Si)	Tsawg dua lossis sib npaug li 0.75%	Tsawg dua lossis sib npaug li 0.50%	Tighter Si txhim kho weld toughness
Manganese (Mn)	Tsawg dua lossis sib npaug li 2.00%	Tsawg dua lossis sib npaug li 1.80%	Tswj rau microstructural uniformity
Phosphorus (P)	Tsawg dua lossis sib npaug li 0.045%	Tsawg dua lossis sib npaug li 0.025%	Tsawg P txo qhov kub ntawm kev tawg yooj yim
Sulfur (S)	Tsawg dua lossis sib npaug li 0.030%	Tsawg dua lossis sib npaug li 0.015%	Tsawg S txhim kho weld zoo thiab toughness
Chromium (Cr)	16.0–18.0%	16.5–18.0%	Narrower band kom zoo ib yam corrosion kuj
Nickel (Ni)	10.0–14.0%	11.0–14.0%	Higher Ni pem teb kom austenite stability
Molybdenum (hli)	2.0–3.0%	2.25–3.00%	Me ntsis elevated pem teb rau pitting kuj
Nitrogen (N)	Tsawg dua lossis sib npaug li 0.10%	0.06–0.10%	Tswj N boosts creep zog ntawm temp.
Boron (B)	Tsis tau teev tseg	Tsawg dua lossis sib npaug li 0.002%	Nuclear yuav tsum tau: B absorbs neutrons
Cobalt (zeeg)	Tsis tau teev tseg	Tsawg dua lossis sib npaug li 0.025%	Nuclear yuav tsum muaj: Co-60 ua kom txaus ntshai
Copper (Cu)	Tsawg dua los yog sib npaug rau 0.10% (khiav)	Tsawg dua lossis sib npaug li 0.10%	Tswj kom tsis txhob muaj kev txhawj xeeb txog kev sib kis

Txawm hais tias nws cov chemistry nruj dua, 316L Mod ua tau raws li lossis tshaj li ASTM A240 316L yam tsawg kawg nkaus uas yuav tsum tau ua. Rau nuclear- qib phaj, feem ntau yuav tsum tau muaj kev ntsuam xyuas ntxiv ntxiv, suav nrog Charpy qhov kev ntsuam xyuas ntawm −20℃, elevated -temperature tensile testing, and intergranular corrosion testing per ASTM A262 Practice E.

Min. Tensile zog

Ntau dua lossis sib npaug li 515 MPa

ASTM A240 / RCC -M yuav tsum tau ua

Min. Lub zog muaj zog (0.2%)

Ntau dua lossis sib npaug li 205 MPa

Nyob rau hauv chav tsev kub

Min. Elongation

Ntau dua lossis sib npaug li 40%

Hauv 50 mm gauge ntev

Hardness (max)

Tsawg dua lossis sib npaug rau 217 HB

Rockwell Tsawg dua lossis sib npaug rau 95 HRB

Creep zog (600 degree)

Superior rau 316L

Vim tswj tau N ntxiv

CVN cuam tshuam (ntawm -20 degree)

Ntau dua lossis sib npaug rau 60 J (tus qauv)

Nuclear supplementary test

Khoom	Txheem 316L	316L Mod	Kev kuaj mob
Tensile zog	Ntau dua lossis sib npaug li 515 MPa	Ntau dua lossis sib npaug li 515 MPa	RT, longitudinal
Lub zog muaj zog (0.2%)	Ntau dua lossis sib npaug li 205 MPa	Ntau dua lossis sib npaug li 205 MPa	RT, longitudinal
Elongation	Ntau dua lossis sib npaug li 40%	Ntau dua lossis sib npaug li 40%	50 mm gaug
Kev txo qis ntawm cheeb tsam	Ntau dua lossis sib npaug li 50%	Ntau dua lossis sib npaug li 50%	Transverse qauv
Hardness	Tsawg dua lossis sib npaug rau 217 HB	Tsawg dua lossis sib npaug rau 217 HB	Brinell, annealed
Charpy CVN (ntawm -20 degree)	Tsis xav tau	Ntau dua lossis sib npaug rau 60 J avg.	Nuclear qib supplementary
Tensile ntawm 350 degree	Tsis xav tau	Min. qhia	Rau RCC{0}}M / ASME III

Khoom	Tus nqi
Qhov ntom	7.98 g/m²
Melting ntau	1375-1400℃(2507-2552℃F)
Thermal conductivity (ntawm 100 degree)	~14.0 W/(m·K)
Thermal expansion coefficient	16.5 µm / (m· degree) ntawm 20-100 degree
Hluav taws xob resistivity	~740 nΩ·m
Modulus ntawm elasticity	193 GPa (28,000 ksi)
Sib nqus permeability	Tsis yog-magnetic (µ ≈ 1.01–1.02)
Qhov siab tshaj plaws kev pab temp. (cont.)	870℃(1600℃F)

Cov lus teb yog nyob ntawm daim ntawv thov. Rau feem ntau kev lag luam siv - cov khoom siv ua zaub mov, vaj tsev cladding, cov qauv tshuaj cog - khoom 316L yog qhov tseeb thiab kev xaiv zoo tshaj plaws. Txawm li cas los xij, muaj cov xwm txheej tshwj xeeb uas 316L Mod tsis yog nyiam xwb, tab sis xav tau los ntawm cov cai lossis daim ntawv cog lus:

Why Choose 316L Mod Over Standard 316L

1. Kev siv hluav taws xob Nuclear

Nuclear Cheebtsam - reactor coolant system piping, pressurizer shells, thawj Circuit Court daim hlau - yog fabricated rau RCC-M (Fabkis nuclear code), ASME Section III, los yog sib npaug cov qauv. Cov cai no tso cai rau cov ntsiab lus cobalt siab tshaj plaws (tsawg dua lossis sib npaug li 0.025%) los tiv thaiv kev tsim ntawm Co-60 nyob rau hauv neutron irradiation, uas dhau los ua qhov tseem ceeb ntawm cov kab mob sib kis. Standard 316L tsis tswj cobalt; 316L Mod ua.

2. High-Tsuas Kub thiab Creep-Kev Pabcuam Tseem Ceeb

Thaum austenitic stainless hlau yog siv los ntawm qhov kub siab tshaj 500℃rau ncua sij hawm, creep (slow yas deformation nyob rau hauv kev ntxhov siab) dhau los ua tus tsim -limiting yam. Kev tswj cov nitrogen ntxiv hauv 316L Mod (0.06-0.10%) ua rau txhim kho creep tsis kam piv rau tus qauv 316L nrog kev tswj tsis tau, muaj peev xwm tsis tshua muaj nitrogen. Qhov no yog qhov tseem ceeb rau cov khoom siv hluav taws xob tsim hluav taws xob thiab cov khoom siv hluav taws xob hloov hluav taws xob nyob rau hauv siab -kub tshuaj nroj tsuag.

3. Cryogenic Service

Rau LNG cia tso tsheb hlau luam thiab cov khoom siv lub thawv txias ua haujlwm ntawm qhov kub thiab txias mus rau -196℃(kua nitrogen kub), ntxiv Charpy cuam tshuam kev ntsuas ntawm qhov kub thiab txias yog xav tau. Cov kev txwv nruj dua nyob rau hauv 316L Mod - tshwj xeeb tshaj yog qis dua phosphorus thiab sulfur - ua rau muaj kev cuam tshuam ntau dua thiab muaj zog dua qhov muaj nuj nqis nyob rau hauv raws li -annealed phaj mob.

4. High-Purity Chemical Processing

Qee cov txheej txheem tshuaj API ntau lawm thiab semiconductor- cov txheej txheem tshuaj lom neeg yuav tsum muaj cov ntaub ntawv nrog cov kab mob tsawg kawg nkaus. Cov kev txwv sab saud ntawm tooj liab, boron, thiab lwm yam tramp cov ntsiab lus hauv 316L Mod pab xyuas kom meej tias cov khoom siv phaj nws tus kheej tsis dhau los ua cov txheej txheem sib kis.

Khoom / Feature	316 Standard	316L Txuj	316L Mod
Cov ntsiab lus carbon	Tsawg dua lossis sib npaug li 0.08%	Tsawg dua lossis sib npaug li 0.030%	Tsawg dua lossis sib npaug li 0.020%
Nitrogen tswj	Tsis tau teev tseg	Tsis tau teev tseg	0.06-0.10% (nqi)
Cobalt txwv	Tsis tau teev tseg	Tsis tau teev tseg	Tsawg dua lossis sib npaug li 0.025%
Boron txwv	Tsis tau teev tseg	Tsis tau teev tseg	Tsawg dua lossis sib npaug li 0.002%
Raws li ASTM A240	Yog lawm	Yog lawm	Yog (ntxiv rau ntxiv)
Nuclear code ua raws	Tsis muaj	Tsis muaj	Yog (RCC-M / ASME III)
Weldability	Zoo	Zoo heev	Zoo heev
Creep kuj	Nruab nrab	Nruab nrab	Txhim kho (vim N)
Tus nqi ntawm cov khoom siv txheeb ze	Puag	Puag + 5–10%	Puag + 25–40%
Yam khoom muaj	Tam sim no Tshuag	Txheem Tshuag	Mill kev txiav txim / txuas ntxiv

25-40% tus nqi hwm ntawm 316L Mod tshaj cov khoom muag 316L qhia tsis yog tsuas yog nruj dua cov khoom siv raw tab sis kuj tseem muaj cov kev sim ntxiv, traceability, thiab ntawv pov thawj. Rau nuclear lossis code- daim ntawv thov raug tso cai, tsis muaj qhov hloov tau. Rau cov ntawv tsis yog -code kev lag luam, tus qauv 316L yuav luag txhua qhov kev xaiv muaj txiaj ntsig zoo.

316L Mod phaj tau txais thiab muab los ntawm kev sib xyaw ua ke ntawm cov qauv khoom siv hauv paus thiab daim ntawv thov- cov kev xav tau tshwj xeeb ntxiv:

Txheem / Code	Scope	Qhov cuam tshuam rau 316L Mod
ASTM A 240 Cov Lus Qhia	Pav ca- dov Cr-Ni stainless phaj, ntawv thiab sawb	Base chemistry thiab mechanical xav tau
ASME SA-240	Siab hlab ntsha code sib npaug ntawm ASTM A240	Yuav tsum tau rau ASME - cov hlab ntsha siab
RCC-M / AFCEN	Fab Kis cov khoom siv nuclear kod	Txhais 316L Mod 'Z2 CND 17-12' qib yuav tsum tau ua
ASME Section III	US nuclear Cheebtsam tsim code	Kev tswj hwm nuclear - qib kev yuav khoom
TS EN 10028-7	European cov khoom tiaj tus rau lub hom phiaj siab	Sib npaug European phaj specification
ASTM A 262 2	Nthuav susceptibility rau intergranular corrosion	Xyaum E xeem feem ntau xav tau rau 316L Mod
EN 10204 3.2	Cov ntaub ntawv pov thawj nrog TPI pov thawj	Yuav tsum muaj rau nuclear thiab PED Class III

Nuclear reactor thawj Circuit Court siab ciam teb Cheebtsam (coolant piping shells, pressurizer phaj)

High-temperature power plant boiler and heat exchanger shells (>500℃kev pabcuam txuas ntxiv)

LNG cia tank cov qauv plhaub xav tau cov ntawv pov thawj cuam tshuam cryogenic

Pharmaceutical thiab biotech reactor nkoj nrog siab -purity trace element xav tau

Tshuaj cog siab hlab ntsha ua hauj lwm nyob rau hauv sib xyaw acid los yog chloride ib puag ncig ntawm qhov kub thiab txias

Offshore subsea siab lub tsev nyob nrog rau kev tsim lub neej ntev

Kev tshawb fawb reactor thiab isotope cov chaw tsim khoom (tsawg cobalt tseem ceeb)

Q: Puas yog 316L Mod zoo ib yam li 316L?

A: Tsis yog. 316L Mod yog raws li 316L tab sis siv cov kev tswj xyuas nruj dua, tshwj xeeb tshaj yog cov pa roj carbon (tsawg dua lossis sib npaug li 0.020%), nitrogen (0.06–0.10%), cobalt (tsawg dua lossis sib npaug li 0.025%), thiab boron (tsawg dua lossis sib npaug li 0.002%). Standard 316L tsis qhia meej cobalt lossis boron txwv tsis pub dhau . 316L Mod kuj feem ntau yuav tsum muaj kev sim ntxiv xws li kev cuam tshuam cryogenic Charpy thiab nce siab - ntsuas kub tensile.

Q: Dab tsi yog 'Mod' sawv rau hauv 316L Mod?

A: 'Mod' sawv cev rau Hloov Kho. Nws qhia tau hais tias lub hauv paus 316L muaj pes tsawg leeg tau hloov kho - tshwj xeeb, cov ntsiab lus tseem ceeb tau raug nruj rau hauv qhov nqaim thiab / lossis cov ntsiab lus ntxiv tau muab tso rau hauv qab - txwv kev tswj. Qhov tseeb 'Mod' yuav tsum sib txawv los ntawm cov txheej txheem kev yuav khoom tshwj xeeb lossis cov neeg siv khoom tshwj xeeb.

Q: Tus qauv 316L puas tuaj yeem hloov pauv rau 316L Mod hauv kev siv nuclear?

A: Tsis yog. Nyob rau hauv nuclear-cov ntawv sau npe tswj hwm los ntawm RCC-M, ASME Tshooj III, lossis cov lej sib npaug, 316L Mod nrog nws cov kev txwv cobalt thiab boron tshwj xeeb yog qhov yuav tsum tau ua. Standard 316L tsis tuaj yeem hloov pauv vim tias cov qib cobalt thiab boron tsis muaj peev xwm tuaj yeem ua rau cov khoom siv hluav taws xob ua kom muaj hluav taws xob lossis cov teeb meem tswj kev ua haujlwm. Kev hloov pauv yuav tsum muaj kev ntsuam xyuas engineering thiab kev pom zoo ntawm txoj cai lij choj, uas yuav luag tsis tau tso cai.

Q: Yuav tsum muaj ntawv pov thawj dab tsi rau 316L Mod phaj?

A: Feem ntau EN 10204 Hom 3.2 cov ntaub ntawv pov thawj kev xeem yuav tsum tau, txhais tau hais tias cov tshuaj thiab cov khoom siv tshuaj ntsuam xyuas tau lees paub los ntawm ob lub chaw tsim khoom zoo thiab thib peb -tsoomfwv pawg neeg soj ntsuam (xws li TUV, Bureau Veritas, lossis SGS). Rau daim ntawv thov nuclear, tus neeg soj ntsuam yuav tsum yog los ntawm lub cev soj ntsuam pom zoo nuclear. Thaum tshav kub kub tooj thiab batch traceability ntawm yaj mus rau lub phaj kawg yuav tsum tau sau tag nrho.

Q: Lub sijhawm ua haujlwm rau 316L Mod phaj yog dab tsi?

A: 316L Mod tsis yog cov khoom lag luam hauv Tshuag ntawm feem ntau cov neeg muag khoom. Nws feem ntau yog tsim los ntawm ib lub zeb- kev txiav txim nrog lub sij hawm txhuas ntawm 10-16 lub lis piam los ntawm kev txiav txim tso, nyob ntawm seb lub phaj qhov ntev, kev kho cua sov, thiab cov kev xav tau kuaj. Rau nuclear- cov khoom tsim nyog, yuav tsum muaj sijhawm ntxiv rau - tog thib peb lub sijhawm tshuaj xyuas. Kev yuav khoom thaum ntxov yog qhia tau zoo hauv kev npaj ua haujlwm.

Kev lees paub: Cov ntaub ntawv thiab cov khoom sib xyaw tau hais hauv daim ntawv no yog tus sawv cev ntawm 316L Mod specifications thiab muab rau kev siv dav dav nkaus xwb. Kev yuav khoom tshwj xeeb yuav tsum yog raws li kev cog lus tshwj xeeb, tsim qauv, thiab kev pom zoo zeb tsim nyog. Txhua qhov kev xaiv cov khoom tseem ceeb thiab kev txiav txim siab hloov pauv yuav tsum tau tshuaj xyuas los ntawm tus kws tsim khoom tsim nyog.Tiv tauj peb JN Alloy tus neeg muag khoomrau kev hais lus thiab cov ntaub ntawv tsim nyog sib tham.