Mea kila kila 17-4PH

17-4PH ua wela koke ia. I ka wā o ka hoʻomaʻamaʻa ʻana i ka wela a i ʻole ka hana ʻana, pono e pale ʻia nā lewa pale i loaʻa ka carbon a i ʻole nitrogen. Hiki ke hoʻopili ʻia kēia mau mea i ka ʻili kila a hāʻawi i ka ʻili austenitic palupalu. Inā makemake ʻia kahi ea pale argon a i ʻole helium.

Loaʻa i ka alloy ka paʻakikī maikaʻi ke wili ʻia, ʻoiai ʻo ka mālama wela haʻahaʻa haʻahaʻa e hōʻemi i ka warping a me ka scaling. Eia kekahi, maʻalahi ka 17-4PH i ka mīkini a hana.

Mahalo i nā waiwai pono, loaʻa iā 17-4PH ka hoʻohana ʻana i nā ʻoihana like ʻole. ʻO nā ʻāpana maʻamau e pili ana i nā sila mechanical, ka ʻaila ʻaila, a me nā shaft pump.

Hiki ke hoʻohana ʻia ka mīkini 17-4PH ma ke kūlana annealed solution a me ke kūlana paʻakikī o ka ua. Ma muli o ka haʻahaʻa o ka wela wela wela, hiki ke hana ʻia ka 17-4PH i ka nui hope i ke kūlana annealed a laila ʻelemakule me ka ʻole o ka hoʻololi nui ʻana a i ʻole ka scaling ke ʻole ka nui o ka mea, i ka wā e pono ai ke ʻae ʻia no ka ʻoki ʻana i ka wā ʻelemakule.
Ma ke kūlana annealed, ʻokoʻa wale ka mīkini mai 300 series austenitic stainless steels. Ma ke kūlana H900, ʻo 60% ka nui o ka mīkini hana no nā mea annealed.

HANA KEMIIKA

NA PAPA	SS316	17-4PH
Kalapona	0.05	0.06
Manganese	2	0.9
Phosphorous	0.045	0.03
Sulfur	0.03	0.02
Silika	N/A	0.9
Copper, columbium, a me Tantalum	N/A	4
Molybdenum	2.1	N/A
Nikela	8	4
Chromium	18	17.5

Nā waiwai kino o ke kila kila 17-4PH

Waiwai	Imperial	Metric
Lahui hehee	2560-2625 °F	1404-1440 °C
Wela Kūikawā	0.11 Btu/lb.-°F	460 Joule/gg-K
Kūʻokoʻa Kūikawā	0.282 lb/in3	7.8 g/cm3
Kū'ē Uila	38.6 µΩ inika	98 µΩ kenimika
Linear Coefficient of Thermal Expansion (70 °F a 200 °F) (21 °C a 93 °C)	6 [in/in/°F·106]	10.8 [μm/m·°C]
Linear Coefficient of Thermal Expansion (70 °F a 400 °F) (21 °C a 204 °C)	6 [in/in/°F·106]	10.8 [μm/m·°C]
Linear Coefficient of Thermal Expansion (70 °F a 600 °F) (27 °C a 316 °C)	6.2 [in/in/°F·106]	11.2 [μm/m·°C]
Linear Coefficient of Thermal Expansion (70 °F a 800 °F) (21 °C a 427 °C)	6.3 [in/in/°F·106]	11.2 [μm/m·°C]
ʻO ka hoʻokō wela (@ 300 °F) (@ 149 °C)	124 Btu/(hr/ft²/in/°F)	17.9 [W/m-K]
Hoʻolima wela (@ 500 °F) (@ 260 °C)	135 Btu/(hr/ft²/in/°F)	19.5 [W/m-K]
ʻO ka hoʻokō wela (@ 860 °F) (@ 460 °C)	156 Btu/(hr/ft²/in/°F)	22.5 [W/m-K]
Hoʻoemi wela (@ 900 °F) (@ 482 °C)	157 Btu/(hr/ft²/in/°F)	22.6 [W/m-K]
Ka Lakiō o Poisson (Ke kūlana H900)	0.272	0.272
Modulus o ka Elasticity (Ke kūlana H900)	28 x 106 ksi	197 x 103 MPa
Modulus o Rigidity i ka Torsion	9.68 x 103 ksi	67 x 103 MPa

ʻO ke kila kila 17-4PH Nā Pono Mechanical

Waiwai	Imperial	Metric
ʻO ka ikaika ʻoi loa	23,300 psi	160 MPa
Ka ikaika o ka hua (0.02%)	16,680 psi	115 MPa
Elongation (% ma 2'')	5%	5%
ʻO Rockwell Hardness C	35	35

Hoʻomaʻamaʻa Wela

Loaʻa ke kila kila 17-4PH i ke kūlana annealed solution ma 1900 °F (1038 °C) a laila hoʻoluʻu i ka ea i 90 °F (32 °C).

Eia nō naʻe, hiki i nā lāʻau lapaʻau hou ke hana i nā pae paʻakikī a paʻakikī. Aia nā lāʻau lapaʻau maʻamau i ka papa ma lalo.

Kūlana	Mahana [± 15 °F (± 8.4 °C)]	ʻO ke ʻano hoʻoluʻu a me ka lōʻihi
H 900	900 °F (482 °C)	Hoʻoluʻu ea no 1 hola
H 925	925 °F (496 °C)	Hoʻoluʻu ea no 4 mau hola
H 1025	1025 °F (551 °C)	Hoʻoluʻu ea no 4 mau hola
H 1075	1075 °F (580 °C)	Hoʻoluʻu ea no 4 mau hola
H 1100	1100 °F (593 °C)	Hoʻoluʻu ea no 4 mau hola
H 1150	1150 °F (621 °C)	Hoʻoluʻu ea no 4 mau hola
H 1150 + 1150	1150 °F (621 °C) ukali e 1150 °F (621 °C)	Hoʻoluʻu ea no 4 mau hola ukali e Hoʻoluʻu ea no 4 mau hola
H 1150-M	1400 °F (760 °C) ukali e 1150 °F (621 °C)	Hoʻoluʻu ea no 2 mau hola ukali e Hoʻoluʻu ea no 4 mau hola