JIS G3445 Mechanical Tube

NAME: JIS G3445 Mechanical Tube

Delivery Port: Dalian, China

PRICE TERM: EXW, FOB, CFR, CIF, etc.

PAYMENT TERM: T/T, L/C at sight, etc.

Product Details

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EO Flanges is one of the leading JIS G3445 Mechanical Tubes suppliers and also a famous manufacturer equipped with many professional JIS G3445 Mechanical Tubes factories, so welcome to purchase high quality mechanical tubes from our company. This Japanese industrial standard specifies the carbon steel tubes, hereinafter referred to as the "tubes" ,used for machinery automobiles, bicycles, furniture, appliances and other machine parts. Material: STS370, STS410, STS480.

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JIS G3445 Mechanical Tube Chemical composition table:

Chemical Composition
Grade		Designation	Chemical composition %
Grade		Designation	C	Si	Mn	P	S	Nb or V
Grade 11	A	STKM 11A	≦0.12	≦0.35	≦0.6	≦0.04	≦0.04	-
Grade 12	A	STKM 12A	≦0.2	≦0.35	≦0.6	≦0.04	≦0.04	-
	B	STKM 12B
	C	STKM 12C
Grade 13	A	STKM 13A	≦0.25	≦0.35	0.30~ 0.90	≦0.04	≦0.04	-
	B	STKM 13B
	C	STKM 13C
Grade 14	A	STKM 14A	≦0.3	≦0.35	0.30~ 1.00	≦0.04	≦0.04	-
	B	STKM 14B
	C	STKM 14C
Grade 15	A	STKM 15A	0.25~ 0.35	≦0.35	0.30~ 1.00	≦0.04	≦0.04	-
	C	STKM 15B
Grade 18	A	STKM 18A	≦0.18	≦0.55	≦1.5	≦0.04	≦0.04	-
	B	STKM 18B
	C	STKM 18C
Grade 19	A	STKM 19A	≦0.25	≦0.55	≦1.5	≦0.04	≦0.04	-
	C	STKM 19C
Grade 20	A	STKM 20A	≦0.25	≦0.55	≦1.6	≦0.04	≦0.04	≦1.5

Mechanical Property of JIS G3445 Mechanical Tube:

Grade		Designation	Chemical			Flattening	Bending
			composition %			test	test
			Tensile	Yield point	Elongation	Distance	Bend	Inside
			Strength kgf/mm2 (N/mm2)	or proof stress kgf/mm2 (N/mm2)	(%)	between flat parts (D:Outside diameter)	angle	radius (D:Outside diameter)
					No.11
					specimen
Grade 11	A	STKM 11A	≧30	—	35	1/2 D	180°	4 D
			-294
Grade 12	A	STKM 12A	≧35	≧18	≧35	2/3 D	90°	6 D
			-343	-177
	B	STKM 12B	≧40	≧28	≧25	2/3 D	90°	6 D
			-392	-275
	C	STKM 12C	≧48	≧36	≧20	—	—	—
			-471	-353
Grade 13	A	STKM 13A	≧38	≧22	≧30	2/3 D	90°	6 D
			-373	-216
	B	STKM 13B	≧45	≧31	≧20	3/4 D	90°	6 D
			-441	-304
	C	STKM 13C	≧52	≧39	≧15	—	—	—
			-510	-382
Grade 14	A	STKM 14A	≧42	≧25	≧25	3/4 D	90°	6 D
			-412	-245
	B	STKM 14B	≧51	≧36	≧15	7/8 D	90°	8 D
			-500	-353
	C	STKM 14C	≧56	≧42	≧15	—	—	—
			-549	-412
Grade 15	A	STKM 15A	≧48	≧28	≧22	3/4 D	90°	6 D
			-471	-275
	C	STKM 15B	≧59	≧44	≧12	—	—	—
			-579	-431
Grade 18	A	STKM 18A	≧45	≧28	≧25	7/8 D	90°	6 D
			-441	-275
	B	STKM 18B	≧50	≧32	≧23	7/8 D	90°	8 D
			-490	-314
	C	STKM 18C	≧52	≧39	≧15	—	—	—
			-510	-382
Grade 19	A	STKM 19A	≧50	≧32	≧23	7/8 D	90°	6 D
			-490	-314
	C	STKM 19C	≧56	≧42	≧15	—	—	—
			-549	-412
Grade 20	A	STKM 20A	≧55	≧40	≧23	7/8 D	90°	6
			-539	-392				D

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Production flow of JIS G3445 Mechanical Tube

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Packaging for JIS G3445 Mechanical Tube in bundles wrapped with strong steel strip, seaworthy packing, or according to customers' requirements. Its delivery is normally 15-30 days after receiving T/T deposit.

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