Componential Analysis

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GLOBAL JAEKYUNG STEEL

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Componential Analysis

Product standards

Data

Carborn Steel Tubes for Machine Structural Purposes. KS D5317 / JIS G3445

Chemical components

Types		sign	chemical components(%)						usage
Types		sign	C	Si	Mn	P	S	Nb or V	usage
11 type	A	STKM 11A	0.12 less than	0.35 less than	0.60 less than	0.040 less than	0.040 less than	-	printing roller, exhaust pipe, steering motor cover, furniture, bicycle, frame etc
12 type	A	STKM 12A	0.20 less than	0.35 less than	0.60 less than	0.040 less than	0.040 less than	-	cross member, looming roller, bearing back metal steering system, propeller shaft
	B	STKM 12B
	C	STKM 12C
13 type	A	STKM 13A	0.25 less than	0.35 less than	0.30~0.90	0.040 less than	0.040 less than	-	propeller shaft, steering system, cross member, hydraulic cylinder bearing back metal looming roller, excel tube
	B	STKM 13B
	C	STKM 13C
14 type	A	STKM 14A	0.30 less than	0.35 less than	0.30~1.00	0.040 less than	0.040 less than	-	steering system, cross member, excel tube, hydraulic cylinder
	B	STKM 14B
	C	STKM 14C
15 type	A	STKM 15A	0.25~0.35	0.35 less than	0.30~1.00	0.040 less than	0.040 less than	-	steering system, cross member, extension tube, propeller shaft
15 type	C	STKM 15C	0.25~0.35	0.35 less than	0.30~1.00	0.040 less than	0.040 less than	-
16 type	A	STKM 16A	0.35~0.45	0.40 less than	0.40~1.00	0.040 less than	0.040 less than	-	valve locker shaft, steering system excel tube, propeller shaft, boring rod
16 type	C	STKM 16C	0.35~0.45	0.40 less than	0.40~1.00	0.040 less than	0.040 less than	-
17 type	A	STKM 17A	0.45~0.45	0.40 less than	0.40~1.00	0.040 less than	0.040 less than	-	excel tube, boring rod
17 type	C	STKM 17C	0.45~0.45	0.40 less than	0.40~1.00	0.040 less than	0.040 less than	-	excel tube, boring rod
18 type		STKM 18A	0.18 less than	0.55 less than	1.50 less than	0.040 less than	0.040 less than	-	hydraulic prop, fork tube hydraulic cylinder
		STKM 18B
		STKM 18C
19 type	A	STKM 19A	0.25 less than	0.55 less than	1.50 less than	0.040 less than	0.040 less than	-
19 type	C	STKM 19C	0.25 less than	0.55 less than	1.50 less than	0.040 less than	0.040 less than	-
20 type	A	STKM 20A	0.25 less than	0.55 less than	1.60 less than	0.040 less than	0.040 less than	0.15 less than

Society of Automotive Engineers

SAE No.	Chemical Composition (%)				AISI No.
SAE No.	C	Mn	P Max	S Max	AISI No.
1006	0.08 Max	0.45 Max	0.030	0.035	1006
1008	0.10 Max	0.50 Max	0.030	0.035	1008
1010	0.08 ~ 0.13	0.30 ~ 0.60	0.030	0.035	1010
1012	0.10 ~ 0.15	0.30 ~ 0.60	0.030	0.035	1012
1015	0.12 ~ 0.18	0.30 ~ 0.60	0.030	0.035	1015
1016	0.12 ~ 0.18	0.30 ~ 0.60	0.030	0.035	1016
1017	0.14 ~ 0.20	0.30 ~ 0.60	0.030	0.035	1017
1020	0.17 ~ 0.23	0.30 ~ 0.60	0.030	0.035	1020
1023	0.19 ~ 0.25	01.30 ~ 0.60	0.030	0.035	1023
1025	0.22 ~ 0.28	0.30 ~ 0.60	0.030	0.035	1025
1026	0.22 ~ 0.28	0.30 ~ 0.90	0.030	0.035	1026