1.0401, C15, General Engineering Carbon Steel

1.0401, C15, General Engineering Carbon Steel
STEELMAX Steel Story

1.0401, C15 는, 탄소강으로 주로 환봉 제품입니다.
Carbon 0.12~0.18% 탄소강으로 탄소량 nominal 0.15% 입니다.

Material No. 1.0401, Material Name C15 제품은
DIN-EN 10277-2 규정에 있는 일반 엔지니어링 강재입니다.

10277-2 규정은 Bright steel bars for general engineering purpose
in the drawn, turned or ground and in straight lengths 입니다.

1.0401, C15, 인발 제품이면서 환봉 직경 25mm 는,
인장강도 430~730 MPa, 항복강도 280 MPa minimum 입니다.

1.0401, C15 제품은 표면 경화강 (case-hardening steel) 로도 쓰입니다.
표면 경화강은 강재 심부는 인성을, 표면은 경도를 높여 사용하는 강재입니다.

※ 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
carburising or carbonitriding and subsequent hardening.
Such steels, after treatment, are characterised by a high hardness
surface layer and a tough ……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.

As rolled, +turned(+SH)			Cold drawn (+C)
Thickness	HBW	Rm, MPa	Rp0.2, MPa	Rm	A
5≤d≤10	–		380 min	500~800	7 min
10＜d≤16	–		340 min	480~780	8 min
16＜d≤40	92~163	310~550	280 min	430~730	9 min
40＜d≤63	92~163	310~550	240 min	380~670	11 min
63＜d≤100	92~163	310~550	215 min	340~600	12 min
Rm : Tensile strength, Rp0.2 : 0.2% Yield strength, A : Elongation

※ Turned products (Lathe turning : 旋削 : 선삭 제품) : Symbol +SH (DIN-EN)
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 som 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.

※ Drawn products (인발 제품, 引拔) : Symbol +C (DIN-EN)
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.