{"id":3040,"date":"2026-09-15T15:09:13","date_gmt":"2026-09-15T12:09:13","guid":{"rendered":"https:\/\/www.defencemetal.com\/?page_id=3040"},"modified":"2026-09-25T16:31:04","modified_gmt":"2026-09-25T13:31:04","slug":"aisi-8620","status":"publish","type":"page","link":"https:\/\/www.defencemetal.com\/index.php\/aisi-8620\/","title":{"rendered":"AISI 8620 \/ AMS 6274"},"content":{"rendered":"

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AISI 8620 \/ (1.6523) \/ UNS G86200 \/ AMS 6274<\/h1>\n
DEFENCE METAL<\/span><\/p>\n
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AISI 8620<\/div>\n
UNS G86200 (sertle\u015febilirlik band\u0131 kalitesi 8620H = H86200) \u00b7 W.Nr. 1.6523 \u00b7 EN 10084 ad\u0131 20NiCrMo2-2 (ESK\u0130 DIN ADI 21NiCrMo2; k\u00fck\u00fcrtl\u00fc\/otomat t\u00fcrevi 20NiCrMoS2-2 = 1.6526) \u00b7 SAE J404 \/ ASTM A29 band\u0131: C %0,18-0,23 \u2013 Mn %0,70-0,90 \u2013 Si %0,15-0,35 \u2013 Ni %0,40-0,70 \u2013 Cr %0,40-0,60 \u2013 Mo %0,15-0,25 \u2013 P en \u00e7ok %0,035 \u2013 S en \u00e7ok %0,040 \u2013 kalan Fe. AMS ba\u015fl\u0131klar\u0131ndaki nominal g\u00f6sterim 0,50Cr \u2013 0,55Ni \u2013 0,20Mo (%0,18-0,23 C). EN 10084 20NiCrMo2-2 BANDI AYNI DE\u011e\u0130LD\u0130R: C %0,17-0,23 \u2013 Si en \u00e7ok %0,40 \u2013 Mn %0,65-0,95 \u2013 Cr %0,35-0,70 \u2013 Mo %0,15-0,25 \u2013 Ni %0,40-0,70 \u2013 P en \u00e7ok %0,025 \u2013 S %0,020-0,040. EN band\u0131 krom ve mangan taraf\u0131nda DAHA GEN\u0130\u015eT\u0130R ve EN’de k\u00fck\u00fcrd\u00fcn bir ALT SINIRI da vard\u0131r (%0,020), SAE’de yoktur. Bu y\u00fczden 20NiCrMo2-2 sertifikas\u0131 ile gelen mal otomatik olarak 8620 sipari\u015fine uygun say\u0131lmaz; kabul, d\u00f6k\u00fcm analizinin her iki band\u0131 da sa\u011flamas\u0131na ba\u011fl\u0131d\u0131r. SEMENTASYON (KARB\u00dcRLEME) \u00c7EL\u0130\u011e\u0130D\u0130R: karbonu d\u00fc\u015f\u00fckt\u00fcr, do\u011frudan su verilerek sertle\u015fmez; y\u00fczeyine karbon emdirilip sert kabuk, alt\u0131nda tok \u00e7ekirdek elde edilir. PASLANMAZ DE\u011e\u0130LD\u0130R. \u00c7\u00d6KELME SERTLE\u015eMEZ; H900 \/ H1025 \/ H1150 benzeri bir ya\u015fland\u0131rma kademesi YOKTUR.<\/div>\n
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Kar\u0131\u015ft\u0131r\u0131lmamas\u0131 gerekenler<\/div>\n

AISI 9310<\/a><\/div>\n<\/div>\n

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Ne i\u00e7in<\/div>\n
Y\u00fczeyi a\u015f\u0131nmaya dayanacak, alt\u0131 darbe yiyecek par\u00e7alar i\u00e7in al\u0131n\u0131r: di\u015fli ve ayna-mahruti tak\u0131m\u0131, pinyon, mil ve \u015faft, pim ve bur\u00e7, zincir ve zincir di\u015flisi, hidrolik pompa g\u00f6vdesi, sondaj ve i\u015f makinesi par\u00e7alar\u0131, plastik kal\u0131b\u0131.<\/div>\n<\/div>\n
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Formlar<\/div>\n
\u00c7ubuk, lama, levha, sac, boru ve d\u00f6vme formlar\u0131nda temin edilir.<\/div>\n<\/div>\n
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Standartlar<\/div>\n
AMS (do\u011frulanm\u0131\u015f, 0,50Cr \u2013 0,55Ni \u2013 0,20Mo, C %0,18-0,23 kimyas\u0131): 6274 (\u00c7UBUK, D\u00d6VME, MEKAN\u0130K TUBE VE D\u00d6VME K\u00dcT\u00dc\u011e\u00dc; U\u00c7AK KAL\u0130TES\u0130; son revizyon S\/2021) \u00b7 6276 (ayn\u0131 \u00fcr\u00fcn formlar\u0131; VAKUM SARF ELEKTROT YEN\u0130DEN ERG\u0130TME \u2013 VAR) \u00b7 6277 (ayn\u0131 \u00fcr\u00fcn formlar\u0131; VAKUM ARK VEYA ELEKTROCURUF YEN\u0130DEN ERG\u0130TME \u2013 VAR veya ESR) \u00b7 6375 (KAYNAK TEL\u0130; vakum ergitme; ortam kontroll\u00fc ambalaj). Is\u0131l i\u015flem prosed\u00fcr\u00fc: AMS 2759<\/b>\/7 (Carburizing and Heat Treatment of Carburizing Grade Steel Parts). Temizlik: AMS 2300<\/b> \/ 2301 \/ 2304. ASTM: A29 \/ A29M (s\u0131cak haddelenmi\u015f ala\u015f\u0131ml\u0131 \u00e7ubuk genel \u015fartlar\u0131) \u00b7 A322 (standart kalite ala\u015f\u0131ml\u0131 \u00e7ubuk) \u00b7 A331 (so\u011fuk \u00e7ekilmi\u015f \u00e7ubuk) \u00b7 A506 (s\u0131cak haddelenmi\u015f sac ve \u015ferit) \u00b7 A507 (so\u011fuk haddelenmi\u015f sac ve \u015ferit) \u00b7 A513 (ERW mekanik tube) \u00b7 A519 (diki\u015fsiz mekanik tube) \u00b7 A534 (rulman i\u00e7in sementasyon \u00e7elikleri) \u00b7 A646 (premium kalite havac\u0131l\u0131k bloom ve k\u00fct\u00fck) \u00b7 A711 (d\u00f6vme k\u00fct\u00fc\u011f\u00fc) \u00b7 A752 (tel \u00e7ubuk) \u00b7 A829 (ala\u015f\u0131ml\u0131 yap\u0131 levhas\u0131). SAE: J404 (kimya) \u00b7 J1268 (H kaliteleri sertle\u015febilirlik bantlar\u0131) \u00b7 J1397. EN \/ di\u011fer: EN 10084 20NiCrMo2-2 (1.6523) ve 20NiCrMoS2-2 (1.6526) \u00b7 BS 970 805M20 \u00b7 AFNOR 20NCD2 \u00b7 JIS SNCM220 \u00b7 SS 2506. Askeri: MIL-S-8690 (8620 \u00e7ubuk, u\u00e7ak kalitesi).
AMS 6274, 6276 VE 6277 B\u0130RB\u0130R\u0130N\u0130N YER\u0130NE GE\u00c7MEZ. \u00dc\u00e7\u00fcn\u00fcn de kimyas\u0131 ayn\u0131d\u0131r ve \u00fc\u00e7\u00fc de ayn\u0131 \u00fcr\u00fcn formlar\u0131n\u0131 (\u00e7ubuk, d\u00f6vme, tube) kapsar; FARK ERG\u0130TME Y\u00d6NTEM\u0130D\u0130R. AMS 6274 u\u00e7ak kalitesi malzemedir ve yeniden ergitme \u015eARTI TA\u015eIMAZ.<\/span><\/div>\n<\/div>\n
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Art\u0131s\u0131<\/div>\n
Ayn\u0131 kimyan\u0131n hem genel sanayi hem de havac\u0131l\u0131k taraf\u0131nda kar\u015f\u0131l\u0131\u011f\u0131n\u0131n bulunmas\u0131 ve her iki tarafta da say\u0131yla ba\u011flanabilmesidir. Genel sanayi taraf\u0131nda EN 10084 \/ Saarstahl \u00e7ekirdek tablosu, karb\u00fcrleme + 200 \u00b0C temperleme sonras\u0131 \u00e7ekme mukavemetini \u00e7apa g\u00f6re garanti eder: 16 mm’ye kadar en az 1100\u2026<\/div>\n<\/div>\n
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Kaynak<\/div>\n
KARB\u00dcRLENMEM\u0130\u015e (teslim) DURUMDA KAYNAK ED\u0130LEB\u0130L\u0130R. Karbonu %0,18-0,23’t\u00fcr; 4140 veya 8740 gibi \u0131slah \u00e7eliklerine g\u00f6re kayna\u011fa daha elveri\u015flidir.<\/div>\n<\/div>\n
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S\u0131n\u0131rlar\u0131<\/div>\n
1) PASLANMAZ DE\u011e\u0130LD\u0130R. Krom oran\u0131 %0,40-0,60’t\u0131r ve pasif tabaka olu\u015fturmaz. Kaplama, fosfat, ya\u011f veya boya olmadan nemli ortamda paslan\u0131r; deniz ve klor\u00fcrl\u00fc ortam i\u00e7in uygun de\u011fildir.
\n2) TEK BA\u015eINA SERTLE\u015eMEZ. Karbonu %0,18-0,23’t\u00fcr. Karb\u00fcrlenmeden su verilirse \u00e7ekirdek sertli\u011fi d\u00fc\u015f\u00fck kal\u0131r;<\/div>\n<\/div>\n
TEKL\u0130F \u0130STE<\/a>T\u00fcm ala\u015f\u0131ml\u0131 \u00e7elikler →<\/a>TEKN\u0130K DETAYLAR ↓<\/span><\/div>\n
Veriler \u00fcretici veri sayfalar\u0131ndan derlenmi\u015ftir · sipari\u015f \u00f6ncesi g\u00fcncel \u015fartnameden teyit ediniz<\/div>\n<\/div>\n<\/div>\n

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