1.6566, 17NiCrMo6-4, Case Hardening Steel

1.6566, 17NiCrMo6-4, Case Hardening Steel
STEELMAX Steel Story

17NiCRMo6-4 는 표면 경화강으로 탄소량은 낮지만,
표면 경도는 높고 — Soft Annealed (+A) max 229HB

강재 심부 (1050~1350 MPa)는
강인성을 가지는 DIN-EN 강재 입니다.

1.6566 = 17CrNiMo6-4 and 1.6569 = 17CrNiMoS6-4는
DIN-EN 10084-2, Case Hardening Steels 규정을 따르고

1.6569 = 17NiCrMoS6-4는 DIN-EN 10084-2 and DIN-EN
10277-4 Bright Steel Products 규정, 2가지를 따릅니다.

Jominy Test 한쪽 끝 경화능 보증 H강 (Hardenability),
상하한 (上下限)  경도 값 (H-Band) 강재 뿐 아니라

사용자의 수요에 따라 다양한 열처리 방법이 있고
높은 압력을 받는 기어 부품 (High strained gear parts)용도로 사용합니다.

※ Case hardening steel (표면 경화강: 表面硬化鋼)
Low carbon steels and low carbon alloy steels of machine structural use
whose surfaces are hardened mainly by carburization hardening…….…JIS
Steels with a relatively low carbon content, which are intented for
carburizing or carbonitriding and subsequent hardening.
Such steels, after treatment, are characterized by a high hardness
surface layer and a tough co….…DIN-EN.
저탄소강 및 저탄소 합금강으로, 주로 침탄 퀜칭에 의해 표면 경화 시킨 강
표면의 내마모성과 내피로성을 높이지만, 강재 내부의 인성을 유지 시킨 강재.
표면 경화 방법으로는 침탄 (Carburizing), 질화 (Nitriding), 침붕 (Boriding)이 있고
각각 탄소, 질소, 붕소를 강재 표면에 침투 시켜 경화 시키는 방법입니다.

※ DIN-EN 10277 Specification applies to bright steel bars in the drawn,
turned or ground condition, In straight lengths of case hardening steels.

※ Drawn products
Products of various cross section shapes obtained, after descaling,
by drawing of hot rolled bars or rod on a draw bench
(cold deformation without removing material)
This operation gives the product special features with respect to shape,
dimensional accuracy and surface finish.
In addition, the process causes cold working of the product.
which can be eliminated by subsequent heat treatment.
Products in lengths are delivered straightened regardless of size.

※Turned products
Round bars products by turning on a lathe where the products
can be further processed by straightening and polishing.
This operation gives the bar special features with respect to shape,
dimensional accuracy and surface finish.
The removal of metal is carried out in such a way that the bright
product is generally free from rolling defects and surface decarburization.
For technical reasons some bars ordered as hot rolled products may be
delivered roughly turned(peeled), nevertheless such products are
treated as hot rolled products and not as bright products.

1.6566, 17NiCrMo6-4, Case Hardening Steel