Stainless hlau phaj 316/316L
Raws li tus neeg muag khoom thiab chaw tsim khoom nyob rau hauv Suav teb, GNEE Steel muab tus nqi -nickel zoo- raws li cov khoom siv alloy.
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Alloys 316 (UNS S31600) thiab 316L (UNS S31603) yog molybdenum-bearing austenitic stainless hlau, uas yog ntau resistant rau corrosion thiab pitting / crevice corrosion tshaj li cov pa chromium-nickel austenitic stainless hlau xws li Alloy 304. siab dua creep, stress-rau-rupture, thiab tensile lub zog ntawm siab kub. Ntxiv rau qhov zoo tshaj plaws corrosion kuj thiab lub zog zog, Alloys 316 thiab 316L Cr-Ni-Mo alloys kuj muab zoo heev fabricability thiab formability uas yog ib yam ntawm cov austenitic stainless hlau.
Specification Sheet Txheej txheem cej luam
Rau Alloy 316/316L (UNS S31600, S31603)
W. Nr. 1.4401, 1.4404:
Ib qho Austenitic Stainless Hlau Muaj Molybdenum uas yog Ntau Corrosion Resistant dua li cov Pa 304/304L Stainless Hlau
General Properties
Daim ntawv thov
Cov qauv
Corrosion Resistance
Tshuaj ntsuam xyuas
Lub cev muaj zog
Mechanical Properties
General Properties
Alloy 316/316L (UNS S31600 / S31603) yog chromium-nickelmolybdenum austenitic stainless hlau tsim los muab kev txhim kho corrosion rau Alloy 304/304L nyob rau hauv nruab nrab corrosive ib puag ncig. Nws feem ntau yog siv hauv cov txheej txheem ntws uas muaj chlorides lossis halides. Qhov sib ntxiv ntawm molybdenum txhim kho kev txhim kho corrosion thiab chloride pitting kuj. Nws kuj muab ntau dua creep, kev nyuaj siab-rau-rupture thiab tensile lub zog ntawm siab kub.
Nws yog ib qho kev coj ua rau 316L kom tau txais kev lees paub dua li 316 thiab 316L. Qhov qis carbon chemistry ntawm 316L ua ke nrog ib qho ntxiv ntawm nitrogen ua rau 316L kom tau raws li cov khoom siv ntawm 316.
Alloy 316/316L resists atmospheric corrosion, nrog rau, me ntsis oxidizing thiab txo qhov chaw. Nws kuj tiv thaiv corrosion nyob rau hauv cov pa phem marine atmospheres. Lub alloy muaj zoo heev tsis kam mus rau intergranular corrosion nyob rau hauv raws li-welded mob. Alloy 316/316L muaj lub zog zoo heev thiab tawv ntawm qhov kub thiab txias.
Alloy 316/316L yog non-magnetic nyob rau hauv lub annealed mob, tab sis yuav ua tau me ntsis sib nqus vim los ntawm txias ua hauj lwm los yog vuam. Nws tuaj yeem ua tau yooj yim welded thiab ua tiav los ntawm cov txheej txheem khw fabrication.
Daim ntawv thov
Kev Siv Tshuaj thiab Petrochemical - Cov hlab ntsha siab, tso tsheb hlau luam, cov khoom siv hluav taws xob, cov kav dej, flanges, fittings, li qub thiab twj tso kua mis
Kev ua zaub mov thiab dej haus
Tubrog nkoj
Kho mob
Petroleum Refining
Pharmaceutical Processing
Fais fab tiam - nuclear
Pulp thiab ntawv
Textiles
Kev kho dej
Cov qauv
ASTM ........A 240
ASME........SA 240
AMS..........5524/5507
QQ-S........766
Corrosion Resistance
Nyob rau hauv ntau daim ntawv thov Alloy 316/316L muaj superior corrosion kuj rau Alloy 304/304L. Cov txheej txheem ib puag ncig uas tsis corrode Alloy 304/304L yuav tsis tawm tsam qib no. Ib qho tshwj xeeb, txawm li cas los xij, yog nyob rau hauv oxidizing acids xws li nitric acid qhov twg stainless hlau muaj molybdenum tsis tshua muaj resistant. Alloy 316/316L ua tau zoo nyob rau hauv sulfur uas muaj cov kev pab cuam xws li uas tau ntsib nyob rau hauv lub pulp thiab ntawv kev lag luam. Cov hlau tuaj yeem siv rau hauv qhov siab ntawm qhov kub txog li 120 degree F (38 degree).
Alloy 316/316L kuj muaj qhov ua tau zoo rau pitting hauv phosphoric thiab acetic acid. Nws ua tau zoo nyob rau hauv boiling 20% phosphoric acid. Cov hlau tseem tuaj yeem siv rau hauv cov khoom noj thiab tshuaj txheej txheem kev lag luam uas nws tau siv los lis cov organic thiab fatty acids kub hauv kev sib zog los txo cov khoom sib kis.
Alloy 316/316L ua tau zoo hauv kev pabcuam dej tshiab txawm tias muaj cov chlorides siab. Lub alloy muaj zoo heev tiv thaiv corrosion nyob rau hauv marine ib puag ncig nyob rau hauv atmospheric tej yam kev mob.
Cov ntsiab lus molybdenum siab dua ntawm Alloy 316/316L paub tseeb tias nws yuav muaj qhov zoo tshaj pitting tsis kam rau Alloy 304/304L hauv cov ntawv thov uas muaj cov tshuaj chloride, tshwj xeeb tshaj yog nyob rau hauv ib puag ncig oxidizing.
Feem ntau, qhov corrosion kuj ntawm Alloys 316 thiab 316L yuav sib npaug sib npaug hauv feem ntau corrosive ib puag ncig. Txawm li cas los xij, nyob rau hauv ib puag ncig uas txaus corrosive los ua intergranular corrosion ntawm welds thiab tshav kub-tshuaj lom aav Alloy 316L yuav tsum tau siv vim nws cov ntsiab lus carbon tsawg.
| Composition (Qhov hnyav feem pua) | CCT2 | CPT3 | ||||
|---|---|---|---|---|---|---|
| ALLOY | Cr | Mo | N | PREN1 | Qib F (degree) | Qib F (degree) |
| Type 304 | 18.0 | - | 0.06 | 19.0 | <27.5 (<-2.5) |
- - |
| Qauv 316 | 16.5 | 2.1 | 0.05 | 24.2 | 27.5 (-2.5) |
59 (15.0) |
| Qauv 317 | 18.5 | 3.1 | 0.06 | 29.7 | 35.0 (1.7) |
66 (18.9) |
| SSC-6MO | 20.5 | 6.2 | 0.22 | 44.5 | 110 (43.0) |
149 (65) |
1Pitting Resistance Equivelant, suav nrog Nitrogen, PREN=Cr + 3.3Mo + 16N
2Critical Crevice Corrosion Temperature, CCCT, raws li ASTM G-48B (6% FeCl3 rau 72 hr, nrog crevices
3Critical Pitting Kub, CPT raws li ASTM G-48A (6% FeCl3 rau 72 teev)
Qhov ntsuas kub qis tshaj (degree F) ntawm qhov Corrosion Rate tshaj 5mpy
| CORROSION Ib puag ncig |
Hom 316L |
Hom 304 |
2205 (UNS S32205) |
2507 |
|---|---|---|---|---|
| 0.2% Hydrochloric Acid | >Boiling | >Boiling | >Boiling | >Boiling |
| 1% hydrochloric acid | 86 | 86p | 185 | >Boiling |
| 10% sulfuric acid | 122 | - | 140 | 167 |
| 60% sulfuric acid | <54 | - | <59 | <57 |
| 96% sulfuric acid | 113 | - | 77 | 86 |
| 85% Phosphoric Acid | 203 | 176 | 194 | 203 |
| 10% Nitric acid | >Boiling | >Boiling | >Boiling | >Boiling |
| 65% Nitric acid | 212 | 212 | 221 | 230 |
| 80% acetic acid | >Boiling | 212p | >Boiling | >Boiling |
| 50% Formic Acid | 104 | Tsawg dua los yog sib npaug li 50 | 194 | 194 |
| 50% Sodium hydroxide | 194 | 185 | 194 | 230 |
|
83% Phosphoric Acid + |
149 | 113 | 122 | 140 |
| 60% Nitric acid + 2% Hydrochloric acid |
>140 | >140 | >140 | >140 |
| 50% acetic acid + 50% Acetic Anhydride |
248 | >Boiling | 212 | 230 |
| 1% Hydrochloric acid + 0.3% Ferric Chloride |
77p | 68p | 113p ib | 203p ib |
| 10% sulfuric acid + 2000ppm Cl- + N2 |
77 | - | 95 | 122 |
| 10% sulfuric acid + 2000ppm Cl- + SO2 |
<<59p | - | <59 | 104 |
| WPA1, Siab Cl- Cov ntsiab lus | Tsawg dua los yog sib npaug li 50 | <<50 | 113 | 203 |
| WPA2, Siab F-Cov ntsiab lus | Tsawg dua los yog sib npaug li 50 | <<50 | 140 | 167 |
FAQ
1.Q: Koj puas yog lub Hoobkas lossis tuam txhab lag luam?
A: Peb yog cov chaw tsim khoom, thiab peb lub tuam txhab kuj yog ib lub tuam txhab kev lag luam rau cov khoom siv steel.Peb tuaj yeem muab ntau yam khoom siv hlau.
2.Q: Koj lub Hoobkas ua li cas txog kev tswj xyuas zoo?
A: Peb tau txais ISO, CE thiab lwm yam ntawv pov thawj. Los ntawm cov ntaub ntawv mus rau cov khoom, peb xyuas txhua tus txheej txheem kom tswj tau qhov zoo.
3.Q: Kuv puas tuaj yeem tau txais cov qauv ua ntej xaj?
A: Yog lawm, tau kawg. Feem ntau peb cov qauv yog dawb. peb tuaj yeem tsim los ntawm koj cov qauv lossis cov duab kos duab.
4.Q: Koj ua li cas rau peb lub lag luam mus ntev thiab kev sib raug zoo?
A: Peb khaws cov khoom zoo thiab cov nqi sib tw kom ntseeg tau tias peb cov neeg siv khoom tau txais txiaj ntsig; Peb hwm txhua tus neeg siv khoom raws li peb tus phooj ywg thiab peb ua siab dawb ua lag luam thiab ua phooj ywg nrog lawv. Txawm lawv tuaj qhov twg los.
5.Q: Koj lub sijhawm xa khoom yog dab tsi?
A: Peb lub sijhawm xa khoom yog li ib lub lis piam, lub sijhawm raws li tus naj npawb ntawm cov neeg siv khoom.
Cim npe nrov: Stainless hlau phaj 316/316l, Tuam Tshoj stainless hlau phaj 316/316l lwm tus neeg
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