17-4PH ANNEALED IRIN ALÁÌṢẸ

Alloy 17-4 jẹ ojoriro chromium-Ejò lile irin alagbara, irin ti a lo fun awọn ohun elo ti o nilo agbara giga ati ipele iwọntunwọnsi ti resistance ipata. O jẹ ọkan ninu awọn onigi lile ojoriro ti a lo pupọ julọ, bi o ti ni líle agbara giga to bii 572°F lakoko ti o n ṣe afihan resistance ipata to dara ni gbogbo awọn ipo itọju ooru. Alloy 17-4 ni o ni deedee resistance to atmospheric corrosion tabi ni ti fomi acid iyọ ibi ti awọn oniwe-ipata resistance ni deede to Alloy 304 tabi 430. Alloy 17-4 le jẹ ooru mu si orisirisi awọn iwọn otutu lati se agbekale kan jakejado ibiti o ti ini. Awọn ohun-ini ẹrọ ẹrọ le jẹ iṣapeye pẹlu itọju ooru nibiti agbara ikore ga julọ to 180 ksi le ṣee ṣe. Alloy 17-4 ko yẹ ki o lo ni awọn iwọn otutu ju 572°F tabi ni awọn iwọn otutu kekere pupọ.

17-4 Irin alagbara
Irin alagbara ojoriro martensitic yii ni apapo ti líle giga ati agbara lẹhin itọju ooru to dara. O tun ni ipata ti o jọra ati aabo ooru si Ite 304. Awọn ọrọ meji naa "Iru 630" ati "17-4PH" tọka si ipele kanna.

Àkópọ̀:

• Erogba: 0.07 max
• Manganese: 1.00 max
• Fọsifọọsi: 0.040 max
• Efin: 0.030 max
• Silikoni: 1.00 max
• Chromium: 15.00 - 17.50
• Nickel: 3.00 - 5.00
• Ejò: 3.00 - 5.00
• Irin: iwontunwonsi

Awọn ohun-ini ti ara:

• Oju Iyọ: 2560 - 2625°F (1404 – 1440°C)
• Ìwọ̀n: 0.282 lbs/in3 / 7.8 g/cm3
• Modulus ti Rirọ ni Ẹdọfu: 28.5 X 106 psi / 197 GPa

Awọn ohun-ini ẹrọ:

• Ipo: Itọju ojutu (A)
• Agbara Fifẹ kere (psi): 160,000
• Agbara Ikore Kere 0.2% aiṣedeede (psi): 145,000
• % Ilọsiwaju ni 2” Aṣoju: 5%
• Lile: Rockwell B85

• Ipò: Ògbólógbòó + Àgbà (TH1050)
• Agbara Aṣoju Aṣoju (psi): 200,000
• Agbara Ikore Aṣoju 2% aiṣedeede (psi): 185,000
• % Ilọsiwaju ni 2": 8%
• Lile: Rockwell C35

• Ipo: Agba (H1075)
• Agbara Aṣoju Aṣoju (psi): 175,000
• Agbara Ikore Aṣoju 2% aiṣedeede (psi): 165,000
• % Ilọsiwaju ni 2": 8%
• Lile: Rockwell C37

• Ipo: Agba (H900)
• Agbara Aṣoju Aṣoju (psi): 210,000
• Agbara Ikore Aṣoju 2% aiṣedeede (psi): 200,000
• % Ilọsiwaju ni 2": 7%
• Lile: Rockwell C45