17-4PH stainless hlau(UNS S17400, tseem hu ua AISI Hom 630 lossis EN 1.4542) yog nag lossis daus -hardening martensitic stainless hlau. Lub npe "17-4PH" los ntawm nws cov muaj pes tsawg leeg: kwv yees li 17% chromium thiab 4% npib tsib xee, nrog rau "PH" sawv rau nag lossis daus hardening.
Kab lus no muab cov lus qhia ua tiav rau cov khoom ntawm 17-4PH stainless hlau los xij, npog txhua yam los ntawm kev pleev xim rau cov neeg kho tshuab, cov yam ntxwv ntawm lub cev, kev kho cua sov, thiab kev siv.
Tshuaj muaj pes tsawg leeg
Cov lus hauv qab no qhia cov qauv txwv raws li ASTM A693 thiab AMS 5604 specifications.
|
Lub ntsiab |
Qhov hnyav% |
Lub luag haujlwm hauv Alloy |
|
Chromium (Cr) |
15.0 – 17.5 |
Muab kev tiv thaiv corrosion thiab oxidation tiv thaiv |
|
Nickel (Ni) |
3.0 – 5.0 |
Stabilizes tus qauv martensitic, txhim kho toughness |
|
Copper (Cu) |
3.0 – 5.0 |
Lub ntsiab tseem ceeb ntxiv dag zog rau - tsim cov khoom zoo thaum laus |
|
Niobium (Nb) + Tantalum (Ta) |
0.15 – 0.45 |
Cov ntaub ntawv carbides uas tswj cov qoob loo loj hlob thiab txhim kho lub zog |
|
Cov pa roj carbon (C) |
Tsawg dua lossis sib npaug li 0.07 |
Pab txhawb rau hardness, tab sis khaws cia qis kom tswj tau weldability |
|
Manganese (Mn) |
Tsawg dua lossis sib npaug li 1.00 |
Pab hauv deoxidation thaum steelmaking |
|
Silicon (Si) |
Tsawg dua lossis sib npaug li 1.00 |
Txhim kho oxidation tsis kam ntawm qhov kub thiab txias |
|
Phosphorus (P) |
Tsawg dua los yog sib npaug li 0.04 |
Impurity, khaws cia kom tsawg |
|
Sulfur (S) |
Tsawg dua lossis sib npaug li 0.03 |
Impurity, khaws cia kom tsawg |
|
Hlau (Fe) |
Qhov nyiaj tshuav (%) |
Lub hauv paus hlau uas tuav txhua yam ua ke |
Cov ntaub ntawv qhov chaw: ASTM A693 / AMS 5604 specifications.
Lub cev muaj zog
|
Khoom |
Tus nqi |
Sau ntawv |
|
Qhov ntom |
7.75-8.03g / cm³ |
hnyav dua li carbon steel (7.85 g / cm³) |
|
Melting Point |
~ 1440℃(2624℃F) |
Hom rau martensitic stainless hlau |
|
Elastic Modulus (Young's Modulus) |
196-200 GPa |
Ntsuas qhov tawv nqaij - ntau npaum li cas cov hlau tiv thaiv dabtsi yog khoov |
|
Poisson tus ratio |
0.27 – 0.30 |
Piav qhia seb cov khoom sib cog lus li cas thaum ncab |
|
Thermal conductivity |
15.3 – 17.9 W/m·K |
Muaj peev xwm hloov hluav taws xob nruab nrab |
|
Hluav taws xob Resistivity |
0.77 – 0.80 µΩ·m |
Zoo conductive rau stainless hlau |
|
Tshwj xeeb kub muaj peev xwm |
~460 J/kg · K |
Tus nqi ntawm cov cua sov yuav tsum tau nce qhov kub ntawm cov hlau |
Cov ntaub ntawv Source: Ntau tus neeg muab khoom specifications
Cov khoom sib nqus: 17-4PH stainless hlau yog hlau nplaum hauv txhua yam. Nyob rau hauv cov kev daws teeb meem-annealed, nws yuav tsuas yog tsis muaj zog hlau nplaum, tab sis tom qab kev laus, nws yuav muaj zog sib nqus vim nws cov qauv siv lead ua martensitic.
Qhov ntsuas kub siab tshaj plaws: 17-4PH khaws nws cov khoom siv kho tshuab zoo txog li 316 degree. Tshaj qhov ntsuas kub no, cov khoom pib poob lub zog, thiab qhov ntev ntev tuaj yeem ua rau muaj kev laus dhau, uas txo cov tawv tawv.
Mechanical Properties
Cov cuab yeej siv tshuab piav qhia tias cov khoom teb li cas rau lub zog- nro (rub), compression (pushing), dabtsi yog khoov, thiab cuam tshuam.
Cov Cuab Yeej Kho Mob
17-4PH feem ntau yog muab rau hauv Kev Kho A (kev daws teeb meem), uas yog mos thiab ua haujlwm tau. Cov neeg siv khoom tom qab ntawd ua kev kho mob laus kom ua tiav qib siab xav tau. Txhua qhov kev laus muaj tus qauv tsim: H900, H925, H1025, H1075, H1100, lossis H1150. Tus lej hais txog qhov kub thiab txias hauv degrees Fahrenheit.
|
Kev laus |
Kev Kub Kub Kub |
Dab tsi Nws Muab |
|
H900 |
482℃(900℃F) |
Maximum zog thiab hardness |
|
H925 |
496℃(925℃F) |
Lub zog siab heev nrog me ntsis txhim kho toughness |
|
H1025 |
552℃(1025℃F) |
Balanced zog thiab toughness |
|
H1075 |
580℃(1075℃F) |
Lub zog nruab nrab, zoo dua toughness |
|
H1100 |
593℃(1100℃F) |
Tsawg zog, siab dua ductility |
|
H1150 |
621℃(1150℃F) |
Maximum toughness thiab ductility |
Cov ntaub ntawv qhov chaw: Kev kho cua sov specifications.
Mechanical Properties by Condition (Tshooj thiab Phaj, AMS 5604)
Cov lus hauv qab no qhia txog cov khoom siv kho tshuab rau 17-4PH daim ntawv thiab phaj (thickness tsawg dua li ntawm 4.75 mm lossis 0.1874 ntiv tes) raws li AMS 5604 specifications.
|
Qhov xwm txheej |
Qhov kawg Tensile Strength (ksi / MPa) |
0.2% Tawm Zog (ksi / MPa) |
Elongation (%) |
Hardness (HRC) |
|
Cond A (Annealed) |
- |
- |
- |
38 max |
|
H900 |
190 / 1310 |
170 / 1170 |
5 |
40 – 47 |
|
H925 |
170 / 1170 |
155 / 1070 |
5 |
38 – 45 |
|
H1025 |
155 / 1070 |
145 / 1000 |
5 |
35 – 42 |
|
H1075 |
145 / 1000 |
125 / 860 |
5 |
33 – 39 |
|
H1100 |
140 / 965 |
115 / 795 |
5 |
32 – 38 |
|
H1150 |
135 / 930 |
105 / 725 |
8 |
28 – 37 |
Cov ntaub ntawv qhov chaw: AMS 5604 daim ntawv / phaj specification
Lub zog tensile yog qhov siab tshaj plaws rub quab yuam cov khoom tuaj yeem tiv taus ua ntej tawg. Ntawm H900, 17-4PH daim ntawv tuaj yeem tuav 190,000 phaus ib square inch (1,310 MPa) - kwv yees li peb npaug zog dua li tus qauv 304 stainless hlau.
Yield zog yog lub zog uas cov khoom pib mus tas li deform. Hauv cov xwm txheej H900, daim ntawv 17-4PH muaj lub zog tawm los ntawm 170 ksi (1,170 MPa).
Elongation ntsuas ntau npaum li cas cov khoom tuaj yeem ncav cuag ua ntej tawg. Ntawm H1150, elongation nce mus txog 8%, muab cov ductility ntau dua li 5% pom hauv H900. Rau cov tuab tuab thiab forgings (AMS 5643), elongation tus nqi siab dua - txog 16% ntawm H1150.
Sib piv rau Lwm Cov Hlau Stainless
|
Khoom |
17-4PH (H900) |
304 Stainless hlau |
316L Stainless hlau |
|
Tensile zog (MPa) |
~1310 |
~585 |
~485 |
|
Yield zog (MPa) |
~1170 |
~205 |
~170 |
|
Elongation (%) |
5 – 10 |
~40 |
~50 |
|
Hardness (HRC) |
40 – 47 |
~ 80 HRB (≈15 HRC) |
~79 HRB (≈14 HRC) |
|
Magnetism |
Sib nqus |
Tsis yog-magnetic |
Tsis yog-magnetic |
Cov ntaub ntawv qhov chaw: Kev sib piv kev lag luam
Corrosion Resistance
17-4PH stainless hlau muaj qhov zoo corrosion kuj uas yog piv rau Hom 304 stainless hlau nyob rau hauv ntau qhov chaw.
Lub alloy 17% chromium cov ntsiab lus tsim ib txheej nyias, tsis pom oxide txheej ntawm qhov chaw uas tiv thaiv cov hlau hauv qab los ntawm xeb thiab tshuaj tua kab mob.
Qhov twg 17-4PH ua tau zoo:
Atmospheric raug (los nag, av noo, muaj huab cua)
Dilute acids thiab ntsev nyob rau hauv nruab nrab kub
Cov dej tshiab thiab cov tshuaj me me
Kev ua zaub mov ib puag ncig
Kev txwv:
17-4PH tsis tiv taus cov tshuaj chlorides (xws li dej hiav txwv thiab de-icing ntsev) dua li 316 stainless hlau, uas muaj molybdenum. Nyob rau hauv ib puag ncig high-chloride, pitting thiab crevice corrosion tuaj yeem tshwm sim.
Rau cov kab mob corrosive hnyav heev -xws li kub concentrated acids los yog seawater kev pab cuam - siab dua - cov khoom qib xws li 316L, duplex 2205, los yog super austenitic 254 SMO tej zaum yuav tsim nyog dua.
Lus Cim: Kev tiv thaiv corrosion yog qhov zoo tshaj plaws hauv kev daws teeb meem -annealed lossis qis dua -kub muaj hnub nyoog (H1150). Tshaj- kev laus lossis kev kho cua sov tsis zoo tuaj yeem txo qhov kev ua haujlwm corrosion.
Kev kho cua sov
Kev kho cua sov yog tus yuam sij rau kev xauv lub peev xwm ntawm 17-4PH. Cov txheej txheem muaj ob theem tseem ceeb:
Kauj Ruam 1: Kev Kho Mob (Annealing)
Kub cov khoom rau 1025 - 1050℃(1877 - 1922℃F).
Tuav rau kwv yees li 0.5 mus rau 1 teev.
Ceev ceev txias (quench) hauv huab cua lossis roj mus rau chav sov.
Qhov tshwm sim: Cov xwm txheej A - mos, cov khoom siv ua haujlwm nrog lub hardness ntawm 38 HRC siab tshaj plaws.
Kauj Ruam 2: Kev laus (Precipitation Hardening)
Tshav kub cov tshuaj-kho cov khoom siv rau ib qho kev laus kub (nruab nrab ntawm 482℃thiab 621℃/ 900℃F thiab 1150℃F).
Tuav rau 1 mus rau 4 teev, nyob ntawm seb cov khoom xav tau.
Txias hauv huab cua mus rau chav sov
Qhov kev xaiv hnub nyoog (H900 txog H1150) nrog cov khoom siv kho kom haum.
Fabrication thiab Workability
Kev Tsim Kho: Nyob rau hauv qhov xwm txheej A, 17-4PH muaj qhov tsim nyog tsim nyog, tab sis kev ua haujlwm yuav tsum raug txwv rau kev khoov me ntsis. Rau cov duab complex, kev daws annealing ua ntej txias ua hauj lwm txhim kho formability. Kub sib sau kuj ua tau.
Machining: 17-4PH muaj qhov ntsuas qhov ua tau zoo ntawm kwv yees li 45% piv rau cov hlau tsis muaj hlau (nyob ntawm 100%). Hauv cov neeg laus, cov khoom siv yog qhov nyuaj thiab nyuaj rau tshuab. Txhawm rau kom tau txais txiaj ntsig zoo tshaj plaws, tshuab nyob rau hauv Qhov A, tom qab ntawd hnub nyoog mus rau qhov kawg hardness.
Vuam: 17-4PH tuaj yeem welded siv cov txheej txheem xws li TIG, MIG, thiab SMAW. Txawm li cas los xij, qhov kub ntawm vuam tuaj yeem ua rau cov khoom muag hauv zos.
Tom qab-weld kev kho cua sov yog pom zoo kom rov qab muaj zog nyob rau hauv weld cheeb tsam. Siv cov khoom siv hlau sib txuam (xws li 17-4PH lossis qib 630) kom tau txais txiaj ntsig zoo tshaj plaws.
Kev sib tsoo thiab ua tiav: Vim nws qhov hnyav hnyav hauv cov neeg laus, kev sib tsoo yuav tsum tau xaiv lub log tsim nyog thiab cov dej txias kom tsis txhob muaj cua sov thiab qhov chaw puas.
Standards thiab Specifications
17-4PH stainless hlau nplooj ntawv thiab daim hlau yog tsim raws li ntau yam kev lag luam qauv. Thaum yuav khoom, nco ntsoov thov daim ntawv pov thawj Mill Test (MTC) lees paub ua raws li qhov tshwj xeeb.
|
Specification |
Kev piav qhia |
Daim ntawv thov |
|
ASTM A693 / A693M / ASTM A693 / ASTM A693 / ASTM A693 / ASTM A693 / ASTM A693 / ASTM A693 / ASTM A693 / A693M / ASTM A693 / ASTM A693 / ASTM A693 / ASTM A693 / A693M / ASTM A693 / A693M / ASTM A693 / ASTM A693 / A693M / ASTM A693 / ASTM A693 / A693M / ASTM A693 / ASTM A693 / ASTM A693 / A693M / ASTM A693 / ASTM A693 / A693M / ASTM A693 / ASTM A693 / A693M / ASTM A693 / ASTM A693 / ASTM A693 / A693M / ASTM A693 / ASTM A693) တို့ |
Txheem specification rau nag lossis daus- hardening stainless hlau phaj, ntawv, thiab sawb |
Daim ntawv, phaj, coil |
|
TIAB SA 5604 |
Aerospace Khoom Specification rau 17-4PH daim ntawv, coil, thiab phaj |
Sheet, coil, phaj |
|
TIAB SA 5643 |
Aerospace Khoom Specification rau 17-4PH bar thiab forgings |
Bar, forgings |
|
ASTM A564 Cov Lus Qhia Tshwj Xeeb |
Txheem specification rau kub- dov thiab txias- tiav 17-4PH tuav |
Bar puab |
|
UNS S17400 |
Unified Numbering System npe |
Txhua daim ntawv |
|
TS EN 1.4542 |
European standard designation |
Txhua daim ntawv |
|
JIS SUS 630 |
Japanese Industrial Standard |
Txhua daim ntawv |
|
DIN X5CrNiCuNb16-4 |
German standard designation |
Txhua daim ntawv |
Cov ntaub ntawv qhov chaw: Ntau yam specifications
Cov ntaub ntawv uas muaj:
Daim ntawv: Txias- dov, thickness ntawm 0.3 hli mus rau 6 hli
Phaj: Kub- dov, thickness ntawm 6 hli mus rau 100 hli los yog ntau tshaj
Chev: Precision slit coils lossis zeb ntug, dav txog li 1500 hli
Cov ntawv thov siv
Aerospace: Turbine blades, compressor Cheebtsam, tsaws iav qhov chaw, thiab structural brackets uas siab zog thiab nruab nrab qhov hnyav yog qhov tseem ceeb.
Chemical thiab Petrochemical Processing: Twj shafts, valve stems, thiab siab hlab ntsha Cheebtsam uas yuav tsum tau tiv thaiv corrosive media thiab siab mechanical loads.
Kev ua zaub mov: Cov khoom siv uas yuav tsum tau muaj kev tiv thaiv corrosion thiab muaj peev xwm tiv taus kev rov ua dua tshiab thiab ua kom huv.
Roj thiab Roj: Cov cuab yeej hauv qab, cov khoom siv hauv lub taub hau, thiab cov khoom siv hauv qab dej hiav txwv uas yuav tsum muaj lub zog siab thiab qaub roj. Qib tswj nws cov khoom mus txog 316℃(600℃F), ua rau nws haum rau ntau daim ntawv thov roj av.
Marine Engineering: Propeller shafts, twj tso kua mis Cheebtsam, thiab fasteners -txawm hais tias mus tas li dej hiav txwv raug, xav txog ntau dua - qib molybdenum.
Fais fab Tsim: Turbine thiab generator Cheebtsam uas ua haujlwm ntawm qhov nruab nrab kub thiab xav tau kev ntseeg siab.
General Metalworking: Iav, shafts, fasteners, bushings, thiab hnav daim hlau qhov siab hardness thiab lub zog xav tau.
Npaj los qhia 17-4PH stainless hlau ntawv rau koj txoj haujlwm tom ntej? Hu rau peb pab neeg muag khoom hnub no ntawm +86 19339900211 lossis Info@jnalloy.com.
Xa koj qhov xav tau tuab, qhov loj me, thiab cua sov- kho mob, thiab peb yuav xa rov qab cov lus hais ruaj khov nrog cov lej ntsuas qhov hnyav thiab cov ntaub ntawv thev naus laus zis hauv 24 teev.
Xaiv 17-4PH daim ntawv los ntawm cov chaw tsim khoomkoj tso siab tau.
