무계목강관 구조용강관

스텐백서 .|. 삼미특수강(주) .|. 前삼미특수강 .|. 강관 .|. 무계목강관

**구조용강관 화학성분 및 기계적성질**
규격				화학성분									기계적 성질					용도
KS	ASTM	JIS	SMS	C	Si	Mn	P (max)	S (max)	Ni	Cr	Mo	기타	인장강도(min)		항복강도(min)		연신율(%) min
KS	ASTM	JIS	SMS	C	Si	Mn	P (max)	S (max)	Ni	Cr	Mo	기타	kg/mm²	N/mm²	kg/mm²	N/mm²	연신율(%) min
STM-C55		STM-C540	X1255C	-	-	-	.040	.040	-	-	-	-	55	540			18	시추용 Casting Tube, Boring Rod, Core Tube 등에 사용하는 강관
STM-C65		STM-C640	X1265C	-	-	-	.040	.040	-	-	-	-	65	640			16
STM-R60		STM-R590	X1260R	-	-	-	.040	.040	-	-	-	-	60	590	28	375	18
STM-R70		STM-R690	X1270R	-	-	-	.040	.040	-	-	-	-	70	690	45	440	16
STM-R80		STM-R780	X1280R	-	-	-	.040	.040	-	-	-	-	80	780	53	520	15
STM-R85		STM-R830	X1285R	-	-	-	.040	.040	-	-	-	-	85	830	60	590	10
STHG-38		STH-38	X0338TK	≤.28	-	≤.65	.040	.050	-	-	-	-	38	373			30	고압 Gas 용기 제조에 사용하는 강관
STHG-55		STH-55	X0555TK	≤.45	-	≤.80	.040	.050	-	-	-	-	55	539			20
STHG-67		STH-67	X0567TK	≤.55	-	≤1.10	.040	.050	-	-	-	-	67	657			18
SCr-420TK		SCr-420TK	X5120TK	.18~.23	.15~.35	.60~.85	.030	.030	-	.90~1.20	-	-	85	834			14	항공기, 자동차, 기타 구조물에 사용하는 합금강 강관
	5120			.17~.22	.15~.35	.70~.90	.040	.040	-	.70~.90	-	-
SCM415TK		SCM415TK	X4115TK	.13~.18	.15~.35	.60~.85	.030	.030	-	.90~1.20	.15~.30	-	85	834			16
SCM418TK		SCM418TK	X4118TK	.16~.21	.15~.35	.60~.85	.030	.030	-	.90~1.20	.15~.30	-	90	883			15
	4118			.18~.23	.15~.35	.70~.90	.040	.040	-	.40~.60	.08~.15	-
SCM420TK		SCM420TK	X4120TK	.18~.23	.15~.35	.60~.85	.030	.030	-	.90~1.20	.15~.30	-	90	883			14
SCM430TK		SCM430TK	X4130TK	.28~.33	.15~.35	.60~.85	.030	.030	-	.90~1.20	.15~.30	-	85	834	70	686	18
	4130			.28~.33	.15~.35	.40~.60	.040	.040	-	.80~1.10	.15~.25	-
SCM435TK		SCM435TK	X4135TK	.33~.38	.15~.35	.60~.85	.030	.030	-	.90~1.20	.15~.30	-	95	932	80	785	15
	4135			.33~.38	.15~.35	.70~.90	.040	.040	-	.80~1.10	.15~.25	-
SCM440TK		SCM440TK	X4140TK	.38~.43	.15~.35	.60~	.030	.030	-	.90~1.20	.15~.30	-	100	981	85	834	12
	4140			.38~.43	.15~.35	.75~1.00	.040	.040	-	.80~1.10	.15~.25	-
SPS-30		STK290	X0330TK	-	-	-	.050	.050	-	-	-	-	30	290			30	토목, 건축, 철탑, 지주 등의 구조물에 사용하는 강관
SPS-41		STK400	X0341TK	≤.25	-	-	.045	.040	-	-	-	-	41	400	24	235	23
SPS-50		STK490	X0350TK	≤.18	≤.55	≤1.50	.040	.040	-	-	-	-	51	500	36	355
SPS-51		STK500	X0351TK	≤.30	≤.35	.30~1.00	.040	.040	-	-	-	-	50	490	32		15
SPS-55		STK540	X0355TK	≤.23	≤.55	≤1.50	.040	.040	-	-	-	-	55	540	40	390	20
									-	-	-	-
STKM-11A		STKM-11A	X0311TK	≤0.12	≤.35	≤.60	.040	.040	-	-	-	-	30	290			35
STKM-12A		STKM-12A	X0312TKA	≤.20	≤.35	≤.60	.040	.040	-	-	-	-	35	340	18	175	35
STKM-12B		STKM-12B	X0312TKB						-	-	-	-	40	390	28	275	25
STKM-12C		STKM-12C	X0312TKC						-	-	-	-	48	470	36	355	20
STKM-13A		STKM-13A	X0313TKA	≤.25	≤.35	.30~.90	.040	.040	-	-	-	-	38	370	22	215	30
STKM-13B		STKM-13B	X0313TKB						-	-	-	-	45	440	31	305	20
STKM-13C		STKM-13C	X0313TKC						-	-	-	-	52	510	39	380	15
STKM-14A		STKM-14A	X0314TKA	≤.30	≤.35	.30~1.00	.040	.040	-	-	-	-	42	410	25	245	25
STKM-14B		STKM-14B	X0314TKB						-	-	-	-	51	500	36	355	15
STKM-14C		STKM-14C	X0314TKC						-	-	-	-	56	550	42	410	15
STKM-15A		STKM-15A	X0315TKA	.25~.35	≤.35	.30~1.00	.040	.040	-	-	-	-	46	450	28	275	22
STKM-15C		STKM-15C	X0315TKC	.25~.35	≤.35	.30~1.00	.040	.040	-	-	-	-	59	580	44	430	12
STKM-16A		STKM-16A	X0316TKA	.35~.45	≤.40	.40~1.00	.040	.040	-	-	-	-	52	510	33	325	20
STKM-16C		STKM-16C	X0316TKC	.35~.45	≤.40	.40~1.00	.040	.040	-	-	-	-	63	620	47	460	12
STKM-17A		STKM-17A	X0317TKA	.45~.55	≤.40	.40~1.00	.040	.040	-	-	-	-	56	550	35	345	20
STKM-17C		STKM-17C	X0317TKC	.45~.55	≤.40	.40~1.00	.040	.040	-	-	-	-	66	650	49	480	10
STKM-18A		STKM-18A	X0318TKA	≤.18	≤.55	≤1.50	.040	.040	-	-	-	-	45	440	28	275	25	기계, 항공기, 자동차, 자전거, 가구, 기구, 기타 기계부품제조에 사용하는 강관
STKM-18B		STKM-18B	X0318TKB						-	-	-	-	50	490	32	315	23
STKM-18C		STKM-18C	X0318TKC						-	-	-	-	52	510	39	380	15
STKM-19A		STKM-19A	X0319TKA	≤.25	≤.55	≤1.50	.040	.040	-	-	-	-	50	490	32	315	23
STKM-19C		STKM-19C	X0319TKC	≤.25	≤.55	≤1.50	.040	.040	-	-	-	-	56	550	42	410	15
STKM-20A		STKM-20A	X0320TKA	≤.25	≤.55	≤1.60	.040	.040	-	-	-	-	55	540	40	390	23
									-	-	-	-
STST-304TKA		SUS304TKA	X304TKA	≤.08	≤1.00	≤2.00	.040	.030	8.00~11.0	18.0~20.0	-	-	53	520	21	205	35	내식성, 내마모성, 내열성이 우수하며 항공기, 자동차 등의 구조물 제작에 사용하는 Stainless 강관
STST-304TKB		SUS304TKB	X304TKB	≤.08	≤1.00	≤2.00	.040	.030	8.00~11.0	18.0~20.0	-	-	74	726	53	520	20
	MT-304			≤.08	≤.75	≤2.00	.040	.030	8.00~11.0	18.0~20.0	-	-
STST-316TKA		SUS316TKA	X316TKA	≤.08	≤1.00	≤2.00	.040	.030	10.00~14.0	16.0~18.0	2.00~3.00	-	53	520	21	205	35
STST-316TKB		SUS316TKB	X316TKB	≤.08	≤1.00	≤2.00	.040	.030	10.00~14.0	16.0~18.0	2.00~3.00	-	74	726	53	520	20
	MT-316			≤.08	≤.75	≤2.00	.040	.030	11.00~14.0	16.0~18.0	2.00~3.00	-
STST-321TKA		SUS321TKA	X321TKA	≤.08	≤1.00	≤2.00	.040	.030	9.00~13.0	17.0~19.0	-	Ti:5×C%이상	53	520	21	205	35
STST-321TKB		SUS321TKB	X321TKB	≤.08	≤1.00	≤2.00	.040	.030	9.00~13.0	17.0~19.0	-	Ti:5×C%이상	72	726	53	520	20
	MT-321			≤.08	≤.75	≤2.00	.040	.030	9.00~13.0	17.0~20.0	-	-
STST-347TKA		SUS347TKA	X347TKA	≤.08	≤1.00	≤2.00	.040	.030	9.00~13.0	17.0~19.0	-	Nb10×C%이상	53	520	21	205	35
STST-347TKB		SUS347TKB	X347TKB	≤.08	≤1.00	≤2.00	.040	.030	9.00~13.0	17.0~19.0	-	Nb10×C%이상	74	726	53	520	20
	MT-347			≤.08	≤.75	≤2.00	.040	.030	9.00~13.0	17.0~20.0	-	-
STST-410TKA		SUS410TKA	X410TKA	≤.15	≤1.00	≤1.00	.040	.030	≤.60	11.5~13.5	-	-	42	410	21	205	20
STST-410TKB		SUS410TKB	X410TKB	≤.15	≤1.00	≤1.00	.040	.030	≤.60	11.5~13.5	-	-	60	588	40	392	12
	MT-410			≤.15	≤1.00	≤1.00	.040	.030		11.5~13.5	-	-
STST-430TK		SUS430TK	X430TK	≤.12	≤.75	≤1.00	.040	.030	≤.60	16.0~18.0	-	-	42	410	25	245	20
	MT-430			≤.12	≤1.00	≤1.00	.040	.030	-	16.0~18.0	-	-

* 상기 강종 이외에 내열강 강관, 합금공구강을 비롯해서 기계구조 및 특수용도용 제조에 이형단면재 (Extruded Irregular Steel Section)도 생산하고 있으며 KS, ASTM, JIS, AISI, DIN, BS, API, SAE 등 각종 규격에 의해 생산 공급하고 있습니다.