Kev sib piv ntawm 17-4PH thiab 15-5PH Materials
17-4PH yog martensitic nag lossis daus hardened stainless hlau. Nws muaj lub zog siab, siab hardness, zoo vuam kev ua tau zoo thiab corrosion kuj. Nws tau txais kev txhawb nqa dav dav thiab siv rau hauv lub valve, ncej thiab tshuaj fiber ntau industries, nrog rau cov khoom siv muaj zog nrog qee yam kev tiv thaiv corrosion.
17-4PH nag lossis daus hardened steel qib nrog ntxiv tooj liab. Siv rau kev tsim cov ncej thiab chav turbine Cheebtsam.
17-4PH nag lossis daus hardened martensitic stainless hlau uas muaj tooj liab, niobium/columbium muaj cov ntsiab lus carbon tsawg, zoo corrosion kuj thiab weldability dua li martensitic stainless hlau. Zoo ib yam li 18-8 stainless hlau, nws muaj cov txheej txheem kev kho cua sov yooj yim thiab kev ua haujlwm zoo, tab sis nws nyuaj rau ua kom tau raws li qhov yuav tsum tau ua ntawm kev ua kom txias txias.
Metallographic qauv: Cov qauv tsim tshwj xeeb yog nag lossis daus hardening hom.
17-4PH Stainless Steel Applications
Siv rau kev tsim cov khoom uas muaj kev tiv thaiv corrosion siab thiab lub zog, xws li bearings thiab turbine qhov chaw.
17-4PH Stainless Steel Chemical Composition
Carbon C: Tsawg dua lossis sib npaug rau 0.07
Silicon Si: Tsawg dua lossis sib npaug rau 1.00
Manganese Mn: Tsawg dua lossis sib npaug rau 1.00
Sulfur S: Tsawg dua lossis sib npaug rau 0.030
Phosphorus P: Tsawg dua lossis sib npaug rau 0.035
Chromium Cr: 15.50-17.50
Nickel Ni: 3 00-5 {2}}
Copper Cu: 3 00-5 00
Niobium Nb: {{0}}.15 ~ 0.45
Delivery Status
Feem ntau xa tawm hauv lub xeev kho cua sov, nrog rau hom kev kho cua sov uas tau teev tseg hauv daim ntawv cog lus; Cov khoom uas tsis tau teev tseg yuav tsum muab xa mus rau hauv qhov tsis muaj cua sov kho.
17-4PH alloy yog stainless hlau nrog nag lossis daus, quenching, thiab martensitic zog, thiab qib no muaj zog, hardness, thiab corrosion kuj. Tom qab kev kho cua sov, cov khoom siv kho tshuab tau zoo dua qub, ncav cuag lub zog compressive txog li 1100-1300 MPa (160-190 ksi). Qib no siv tsis tau ntawm qhov kub siab tshaj 300 degree (570F) lossis qis heev. Nws muaj corrosion kuj zoo rau cov cua thiab diluted acids los yog ntsev, thiab nws cov corrosion kuj yog tib yam li 304 thiab 430.
17-4PH Material Mechanical Properties
Tensile zog σ B (MPa): Kev laus ntawm 480 degree, Ntau dua lossis sib npaug rau 1310; Kev laus ntawm 550 degree, Ntau dua lossis sib npaug rau 1060; Kev laus ntawm 580 degree, Ntau dua lossis sib npaug rau 1000; Kev laus ntawm 620 degree, Ntau dua lossis sib npaug rau 930
Conditional yield zog σ 0.2 (MPa): aging ntawm 480 degree, Ntau tshaj los yog sib npaug rau 1180; Kev laus ntawm 550 degree, Ntau dua lossis sib npaug rau 1000; Kev laus ntawm 580 degree , Ntau dua lossis sib npaug rau 865; Kev laus ntawm 620 degree, Ntau dua lossis sib npaug rau 725
Elongation tus nqi δ 5 (%): Kev laus ntawm 480 degree, Ntau dua lossis sib npaug rau 10; Kev laus ntawm 550 degree, Ntau dua lossis sib npaug rau 12; Kev laus ntawm 580 degree, Ntau dua lossis sib npaug rau 13; Kev laus ntawm 620 degree, Ntau dua lossis sib npaug rau 16
Kev txo qis ntawm thaj tsam ψ (%): Kev laus ntawm 480 degree, Ntau dua lossis sib npaug rau 40; Kev laus ntawm 550 degree, Ntau dua lossis sib npaug rau 45; Kev laus ntawm 580 degree, Ntau dua lossis sib npaug rau 45; Kev laus ntawm 620 degree, Ntau dua lossis sib npaug rau 50
Hardness: cov tshuaj tov, Tsawg dua los yog sib npaug rau 363HB thiab Tsawg dua los yog sib npaug rau 38HRC; Kev laus ntawm 480 degree, Ntau dua lossis sib npaug rau 375HB thiab Ntau dua lossis sib npaug rau 40HRC; Kev laus ntawm 550 degree, Ntau dua lossis sib npaug rau 331HB thiab Ntau dua lossis sib npaug rau 35HRC; Kev laus ntawm 580 degree, Ntau dua lossis sib npaug rau 302HB thiab Ntau dua lossis sib npaug rau 31HRC; Kev laus ntawm 620 degree, Ntau dua lossis sib npaug rau 277HB thiab Ntau dua lossis sib npaug rau 28HRC
Kev kho cua sov txheej txheem
Kev kho cua sov specifications:
1) Cov kua nplaum ceev ceev txias ntawm 1020-1060 degree ;
2) Kev laus ntawm 480 degree, tom qab kho cov tshuaj kho, cua txias ntawm 470-490 degree;
3) Kev laus ntawm 550 degree, tom qab kho cov kua dej, cua txias ntawm 540-560 degree;
4) Kev laus ntawm 580 degree, tom qab kho cov tshuaj kho, cua txias ntawm 570-590 degree;
5) Kev laus ntawm 620 degree, tom qab kho cov tshuaj kho, cua txias ntawm 610-630 degree . Metallographic qauv: Cov qauv tsim tshwj xeeb yog nag lossis daus hardening hom.
15-5PH yog martensitic, nag lossis daus hardened, chromium npib tsib xee tooj liab stainless hlau nrog zoo heev nto smoothness thiab seem stability. Cov cuab yeej ua haujlwm zoo, cov khoom siv kho tshuab zoo heev, thiab ua haujlwm tsis zoo rau ib puag ncig corrosive. Thaum ntxov li nruab nrab -1990s, nws pib txhawb lub tswb steel no thiab yog ib lub tuam txhab ntxov tshaj plaws hauv Shanghai los tsim thiab ua haujlwm ntawm cov hlau no. Cov hlau no muaj lub zog zoo, toughness thiab ductility, nrog rau lateral, hardness thiab corrosion kuj, uas yog piv rau 304 stainless hlau. Tej zaum yuav raug siv los daws lossis kho cua sov kom tau txais ntau yam kev kho mob.
15-5PH Steel Chemical Composition
Cov ntsiab lus carbon (C) 0.07,
Silicon (Si) 1.00,
Manganese (Mn) 1. 00,
Phosphorus (P) 0.040,
Sulfur (S) 0.030,
Nickel (Ni) 3.50-5.50,
Chromium (Cr) 14.00-15.50,
Tooj liab (Cu) 2.50-4.50,
Niobium (Nb) 0.15-0.45,
Lwm yam -
Mechanical kev ua tau zoo
tensile zog σ B (MN/m2)>= tsib puas tsib caug
yield zog σ S (MN/m2)>= ob puas
elongation δ 5 (%) ＞=40
Shrinkage tus nqi ψ (%)=55
Hardness: Tsawg dua los yog sib npaug rau 187HB; Tsawg dua lossis sib npaug rau 90HRB; Tsawg dua lossis sib npaug li 200HV
Yog tias siv rau qhov kub siab ntawm 700 degree, 15-5PH yuav tsum muaj peev xwm, vim nws yog ob qho tib si austenitic stainless hlau thiab dav siv austenitic tshav kub lub zog hlau. Txawm li cas los xij, nws yog qhov zoo tshaj kom tsis txhob siab tshaj 750 degree. Nws txoj kev kho cua sov yog kev kho kom zoo, uas txhais tau hais tias cua sov mus rau 1000 degree lossis siab dua, tuav rau qee lub sijhawm ua ntej dej quenching, thiab tom qab ntawd siv cov kev kho laus tshaj qhov kub ntawm kev khiav hauj lwm ntawm 60-100 degree .
17-4PH alloy yog stainless hlau nrog nag lossis daus, quenching, thiab martensitic zog. Qib no muaj lub zog siab, hardness (txog 3000 C / 5000 C), thiab corrosion kuj. Tom qab kev kho cua sov, cov khoom siv kho tshuab ntawm cov khoom tau txhim kho ntxiv, ncav cuag lub zog compressive txog li 1100-1300 MPa (160-190 ksi). Cov qib no tsis tuaj yeem siv rau qhov kub siab tshaj 300 0C (572 0F) lossis qis heev. Nws muaj corrosion kuj zoo rau cov cua thiab diluted acids los yog ntsev, thiab nws cov corrosion kuj yog tib yam li 304 thiab 430.
15-5PH, yog martensitic nag lossis daus hardened stainless hlau. Nws muaj kev ua haujlwm zoo, cov khoom siv kho tshuab zoo heev, thiab ua haujlwm tsis zoo rau ib puag ncig corrosive
Ob qho khoom siv yog los nag lossis daus hardening stainless hlau, uas yog qhov nyuaj rau kev ua haujlwm ntawm 17-4PH thiab feem ntau yog siv hauv kev lag luam aviation thiab chav turbine.
