Lisebelisoa tsa tšepe tse sa hloekang 17-4PH

17-4PH e chesa habonolo. Nakong ea phekolo ea mocheso kapa ho qhekella, libaka tse sireletsang tse nang le carbon kapa nitrogen li lokela ho qojoa. Lintho tsena li ka kenngoa ka holim'a tšepe 'me tsa fana ka letlalo le bonolo la austenitic. Haeba sepakapaka se sireletsang se hlokahala argon kapa helium e buelloa.

Alloy e boetse e na le ho tiea ho hotle ha e cheselitsoe, athe liphekolo tse khutšoane tsa mocheso o tlase li fokotsa ho soahlamana le ho phahama. Ho feta moo, 17-4PH e bonolo ho e etsa mochini le ho e etsa.

Ka lebaka la thepa e ntle, 17-4PH e fumana ts'ebeliso liindastering tse fapaneng. Likarolo tse tloaelehileng li kenyelletsa litiiso tsa mochini, patch ea oli le lithupa tsa pompo.

Machinability 17-4PH e ka etsoa ka mochini ka bobeli boemong ba tharollo le boemo bo thata ba pula. Hobane mocheso oa ho qetela oa phekolo ea mocheso o tlaase, 17-4PH e ka etsoa ka mochine ho ea boemong ba ho qetela boemong bo kentsoeng ebe e tsofala ntle le phetoho e kholo ea dimensional kapa tekanyo ntle le haeba karolo e le khōlō, ha tumello e lokela ho etsoa bakeng sa ho fokotsa botsofali.
Boemong bo sa tsitsang, machining e fapane hanyane le litšepe tse 300 tsa austenitic. Boemong ba H900 sekhahla sa mochini ke 60% sa seo bakeng sa thepa e kentsoeng.

MOTS'EOA CHEMEKE

LIEKETSENG	SS316	17-4PH
Khabone	0.05	0.06
Manganese	2	0.9
Phosphorous	0.045	0.03
Sebabole	0.03	0.02
Silicone	N/A	0.9
Koporo, columbium, le Tantalum	N/A	4
Molybdenum	2.1	N/A
Nickel	8	4
Chromium	18	17.5

hysical Properties of Stainless Steel 17-4PH

Thepa	Moemphera	Metric
Melting Range	2560-2625 °F	1404-1440 °C
Mocheso o khethehileng	0.11 Btu/lb.-°F	460 Joules/gg-K
Tekano e Itseng	0.282 lb/ka3	7.8 g/cm3
Ho hanyetsa Motlakase	38.6 µΩ ka	98µΩ cm
Mohala oa Mohala oa Katoloso ea Thermal (70 °F ho isa ho 200 °F) (21 °C ho isa ho 93 °C)	6 [ho/ka/°F·106]	10.8 [μm/m·°C]
Mohala oa Mohala oa Katoloso ea Thermal (70 °F ho isa ho 400 °F) (21 °C ho isa ho 204 °C)	6 [ho/ka/°F·106]	10.8 [μm/m·°C]
Mohala oa Mohala oa Katoloso ea Mocheso (70 °F ho isa ho 600 °F) (27 °C ho isa ho 316 °C)	6.2 [ho/in/°F·106]	11.2 [μm/m·°C]
Mohala oa Mohala oa Katoloso ea Thermal (70 °F ho isa ho 800 °F) (21 °C ho isa 427 °C)	6.3 [ho/in/°F·106]	11.2 [μm/m·°C]
Thermal Conductivity (@ 300 °F) (@ 149 °C)	124 Btu/(hr/ft²/in/°F)	17.9 [W/m-K]
Thermal Conductivity (@ 500 °F) (@ 260 °C)	135 Btu/(hr/ft²/in/°F)	19.5 [W/m-K]
Thermal Conductivity (@ 860 °F) (@ 460 °C)	156 Btu/(hr/ft²/in/°F)	22.5 [W/m-K]
Thermal Conductivity (@ 900 °F) (@ 482 °C)	157 Btu/(hr/ft²/in/°F)	22.6 [W/m-K]
Poisson's Ratio (H900 Condition)	0.272	0.272
Modulus of 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

Lisebelisoa tsa Mechanical tsa 17-4PH tse se nang tšepe

Thepa	Moemphera	Metric
Matla a ho qetela a Tensile	23,300 psi	160 MPa
Kotulo e Matla (0.02%)	16,680 psi	115 MPa
Elongation (% in 2’’)	5%	5%
Rockwell Hardness C	35	35

Kalafo ea Mocheso

Stainless Steel 17-4PH e fumaneha boemong ba tharollo ea 1900 °F (1038 °C) ebe e pholile moea ho 90 °F (32 °C).

Leha ho le joalo, phekolo e eketsehileng ea mocheso e ka hlahisa maemo a sa tšoaneng a thata le a thata. Liphekolo tse atileng haholo li thathamisitsoe tafoleng e ka tlase.

Boemo	Mocheso [± 15 °F (± 8.4 °C)]	Mokhoa oa ho Pholisa le Nako
H900	900 °F (482 °C)	Ho pholile moea ka hora e le 'ngoe
H925	925 °F (496 °C)	Ho pholile moea ka lihora tse 4
H 1025	1025 °F (551 °C)	Ho pholile moea ka lihora tse 4
H 1075	1075 °F (580 °C)	Ho pholile moea ka lihora tse 4
H 1100	1100 °F (593 °C)	Ho pholile moea ka lihora tse 4
H 1150	1150 °F (621 °C)	Ho pholile moea ka lihora tse 4
H 1150 + 1150	1150 °F (621 °C) e lateloa ke 1150 °F (621 °C)	Ho pholile moea ka lihora tse 4 e lateloa ke Ho pholile moea ka lihora tse 4
H 1150-M	1400 °F (760 °C) e lateloa ke 1150 °F (621 °C)	Ho pholile moea ka lihora tse 2 e lateloa ke Ho pholile moea ka lihora tse 4