17-7 PHX PHIC NQE HLAU HOM

 

17 {-}}} Lub npe hu ua A ITISI 631 lossis 1.4568, yog ib qho kev sib xyaw ua ke, yog lub zog siab, thiab cov khoom siv kho kom zoo dua qub. Nws yog dav siv nyob rau hauv Aerospace, Automotive, tshuaj lom neeg, thiab kev lag luam uas nyob ruaj khov thiab kev ntseeg tau yog qhov tseem ceeb.

 

Tshuaj Muaj Tshuaj

Cov tshuaj lom neeg muaj pes tsawg leeg ntawm stainless hlau qib 17-7 pH tau teev nyob rau hauv cov lus hauv qab no.

Lub ntsiab	Cov ntsiab lus (%)
Chromium, cr	16-18
Npib tsib xee, ni	6.50 - 7.75
Manganese, mn	1 Max
Silicon, si	1 Max
Aluminium, al	0.75 - 1.50
Carbon, c	0.09 max
Phosphorous, p	0.040 max
Sulphur, s	0.030 max
Hlau, FE	Seem

Cov Khoom Siv Lub Cev

Cov khoom siv lub cev ntawm stainless hlau qib 17-7 pH yog cov dab hauv qab no.

Cov Khoom Siv	Me me	Muaj huab tais
Ceev	7.80 g / cm3	0.282 lb / hauv3

Cov Khoom Siv Neeg Kho Tshuab

Cov lus hauv qab no qhia cov cuab yeej siv tshuab ntawm stainless hlau 17-7 pH (thi50, bar thiab tsis quav ntsej).

Cov Khoom Siv	Me me	Muaj huab tais
Lub zog tensile	1170 MPA	170000 PSI
Paib lub zog	965 MPa	140000 PSI
Modulus ntawm elasticity	204 GPA	29600 KSI
Poisson tus piv	0.27-0.30	0.27-0.30
Elongation thaum so	6%	6%
Hardness, Rockwell C	38	38

Thermal Khoom

Lub thermal muaj cov khoom ntawm stainless hlau qib 17-7 pH yog muab rau hauv cov lus hauv qab no.

Cov Khoom Siv	Me me	Muaj huab tais
Thermal conductivity	16.4 w / mk	114 BTU hauv / hr.ft2Cov. Degree F
Thermal expansion co -}} paecient (@ 0.-2-212 doglly F)	11 μm / m degree	6.11 μm / m degree

Lwm Cov Kev

Lwm cov kev tsim qauv uas muaj sib npaug rau cov qib stainless hlau 17-7? Suav nrog cov hauv qab no.

AISI 631	Ams 5528	Ams 5529	Ams 5568	Ams 5644
Ams 5678	ASTM A313 (631)	ASTM A564 (631)	ASTM A579 (631)	ASTM A693 (631)
ASTM A705 (631)	DIN 1.4568	Mil s-25043	DIN 1.4568	Ams 5673
Ams 5824	ASME SA705	ASTM A579 (Qib 62)	Mil Spec Lil - w-46078	SAE J217
SAE J467

 

Corrosion Kuj
17-7HP muaj qhov zoo tsis kam mus rau cov tshuaj corrosholouric, tshuaj lom me, thiab cov chaw ua haujlwm me me, ua rau cov dej num uas yog muaj dej noo, ntsev, lossis kev lag luam tshuaj. Nws corrosion tsis kam txhim kho tom qab kev kho cua sov kom zoo.

 

Kev kho cua sov ntawm 17-7phph stainless hlau

Tshuaj Annalneing: Feem ntau ntawm 1040-1065 degree, tom qab los ntawm cua txias kom yaj cov nag lossis homogenize lub microstructure.

Zes nag lossis tawv tawv (laus): ua nyob rau ntawm 480-620℃kom ua tiav lub zog xav tau thiab Hardness.

Kev kho cua sov tso cai rau cov chaw tsim khoom kom sib npaug, ductility, thiab corrosion tsis kam raws li cov cai thov.

 

17-7phph vs 17-4-4 odle stainless hlau

17-7 Tus Hlau Stainless (AISI 631 / 1.4568) Feem ntau ua tiav lub zog ntawm 10-20%, nrog elongation ib ncig ntawm 10-20%, muab kev ua kom zoo dua thiab corrosion tsis kam.
Hauv kev sib piv, 17th (AISI 630) nce mus txog lub zog ntau dua ntawm 1100 thiab nyuaj ntawm 32-48 HRC, tab sis nrog me ntsis qis elongation (8-15%) thiab txo corrosion tsis kam. Qhov no ua rau 17-7 Michph zoo rau cov khoom siv nyuaj thiab muaj txiaj ntsig, thaum 17-4-44 thiab 17-4-4 yam txaus siab rau lub zog tshaj tawm.