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Mea kila kila 17-4PH
Kila kohu ʻole
Ke kila kila17-4PH
Mea kila kila 17-4PH

Mea kila kila 17-4PH

ʻO 17-4 PH Steel he 4% keleawe a paʻakikī paha e ka hoʻokahi haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa e hoʻopaʻa ai i ka wela, e hana ana i nā waiwai mechanical maikaʻi loa ma kahi kiʻekiʻe ikaika. Hāʻawi ʻo 17-4 PH i kēia ikaika kiʻekiʻe i hui pū ʻia me nā waiwai mechanical maikaʻi ma nā mahana a hiki i 600°F (316°C).
ʻIke huahana
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.


ʻikepili ʻenehana
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



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