Izinto zensimbi ezingenasici 17-4PH

I-17-4PH ishushu ngokukhawuleza. Ngexesha lokunyanga ubushushu okanye ukubumba, i-atmospheres ekhuselayo equkethe i-carbon okanye i-nitrogen kufuneka igwenywe. Ezi zinto zinokufunxwa kwindawo yentsimbi kwaye zinike ulusu oluthambileyo lwe-austenitic. Ukuba umoya okhuselayo uyafuneka i-argon okanye i-helium iyacetyiswa.

I-alloy ikwanokuqina okulungileyo xa idityanisiwe, ngelixa unyango olufutshane lobushushu obuphantsi kweqondo lokushisa lunciphisa ukulwa kunye nokunyuka. Ukongeza, i-17-4PH ilula ukwenza umatshini kunye nokwenza.

Ndiyabulela kwiipropati ezinenzuzo, i-17-4PH ifumana ukusetyenziswa kumashishini ahlukeneyo. Amalungu aqhelekileyo abandakanya izitywini zoomatshini, iqhosha le-oyile, kunye ne-pump shafts.

I-Machinability 17-4PH inomatshini kuzo zombini isisombululo se-annealed condition kunye ne-precipitation lukhuni imeko. Ngenxa yokuba iqondo lokushisa lokugqibela lonyango lobushushu liphantsi, i-17-4PH inomatshini ukuya kwinqanaba lokugqibela kwimeko edibeneyo kwaye emva koko igugile ngaphandle kotshintsho olubalulekileyo lwe-dimensional okanye ukulinganisa ngaphandle kokuba icandelo likhulu, xa kufuneka kwenziwe isibonelelo sokunciphisa ukuguga.
Kwimeko ye-annealed machining yahluke nje kancinci ukusuka kwi-300 series austenitic stainless steels. Kwimeko ye-H900 isantya somatshini yi-60% yaloo nto yezinto ezifakwe emanzini.

UHLELO LWEKHEMICAL

AMABANGA	SS316	17-4PH
Ikhabhoni	0.05	0.06
IManganese	2	0.9
Iphosphorus	0.045	0.03
Isulfure	0.03	0.02
Isilicon	N / A	0.9
Ubhedu, columbium, kunye neTantalum	N / A	4
Molybdenum	2.1	N / A
Nickel	8	4
Chromium	18	17.5

IiPropati zehysical zeStainless Steel 17-4PH

Ipropati	Impiriyali	Metric
Uluhlu olunyibilikayo	2560-2625 °F	1404-1440 °C
Ubushushu obuthile	0.11 Btu/lb.-°F	460 Joules/gg-K
Uxinaniso oluthile	0.282 lb/in3	7.8g/cm3
Ukuxhathisa koMbane	38.6 µΩ ngaphakathi	98µΩ cm
ILica Coefficient yoKwandiswa kweThermal (70 °F ukuya kuma-200 °F) (21 °C ukuya kuma-93 °C)	6 [kwi/ngaphakathi/°F·106]	10.8 [μm/m·°C]
ILica Coefficient yoKwandiswa kweThermal (70 °F ukuya ku-400 °F) (21 °C ukuya kuma-204 °C)	6 [kwi/ngaphakathi/°F·106]	10.8 [μm/m·°C]
ILica Coefficient yoKwandiswa kweThermal (70 °F ukuya ku-600 °F) (27 °C ukuya kuma-316 °C)	6.2 [kwi/ngaphakathi/°F·106]	11.2 [μm/m·°C]
ILica Coefficient yoKwandiswa kweThermal (70 °F ukuya ku-800 °F) (21 °C ukuya kuma-427 °C)	6.3 [kwi/ngaphakathi/°F·106]	11.2 [μm/m·°C]
I-Thermal Conductivity (@ 300 °F) (@ 149 °C)	124 Btu/(iyure/ft²/in/°F)	17.9 [W/m-K]
I-Thermal Conductivity (@ 500 °F) (@ 260 °C)	135 Btu/(iyure/ft²/in/°F)	19.5 [W/m-K]
I-Thermal Conductivity (@ 860 °F) (@ 460 °C)	156 Btu/(iyure/ft²/in/°F)	22.5 [W/m-K]
I-Thermal Conductivity (@ 900 °F) (@ 482 °C)	157 Btu/(iyure/ft²/in/°F)	22.6 [W/m-K]
Umlinganiselo wePoisson (H900 Condition)	0.272	0.272
Imodyuli ye-Elasticity (H900 Condition)	28 x 106 ksi	197 x 103 MPa
Modulus of Rigidity in Torsion	9.68 x 103 ksi	67 x 103 MPa

I-Stainless Steel 17-4PH iiPropati zeMechanical

Ipropati	Impiriyali	Metric
Ukomelela kokugqibela kokuqina	23,300 psi	160 MPa
Amandla eSivuno (0.02%)	16,680 psi	115 MPa
Ukwandiswa (% kwi-2’’)	5%	5%
Ubunzima beRockwell C	35	35

Unyango lobushushu

I-Stainless Steel 17-4PH ifumaneka kwisicombululo se-annealed condition kwi-1900 °F (1038 °C) kwaye emva koko ipholile emoyeni ukuya kwi-90 °F (32 °C).

Nangona kunjalo, unyango olongezelelweyo lobushushu lunokuvelisa amanqanaba ahlukeneyo obunzima kunye nokuqina. Olona nyango luxhaphakileyo ludweliswe kwitheyibhile engezantsi.

Imeko	Iqondo lobushushu [± 15 °F (± 8.4 °C)]	Indlela yokupholisa kunye noBude bexesha
H 900	900 °F (482 °C)	Ukupholisa umoya kwiyure enye
H 925	925 °F (496 °C)	Ukupholisa umoya iiyure ezi-4
H 1025	1025 °F (551 °C)	Ukupholisa umoya iiyure ezi-4
H 1075	1075 °F (580 °C)	Ukupholisa umoya iiyure ezi-4
H 1100	1100 °F (593 °C)	Ukupholisa umoya iiyure ezi-4
H 1150	1150 °F (621 °C)	Ukupholisa umoya iiyure ezi-4
H 1150 + 1150	1150 °F (621 °C) ilandelwe ngu 1150 °F (621 °C)	Ukupholisa umoya iiyure ezi-4 ilandelwe ngu Ukupholisa umoya iiyure ezi-4
H 1150-M	1400 °F (760 °C) ilandelwe ngu 1150 °F (621 °C)	Ukupholisa umoya kwiiyure ezi-2 ilandelwe ngu Ukupholisa umoya iiyure ezi-4