JIS G3472 Stam290ga Stam340g Carbon Steel Automobile Welded Tube

• Customization: Available
• Application: Aerospace, Automotive, Construction, Electrical Insulation, Marine
• Certification: CE, ISO9001
• Model NO.: KM-20241108
• Fiberglass Tube: 15~127mm
• Length: 1~12 Meters
• Material: Alloy Steel
• Temperature Resistance: 300℃
• Size: 15~127mm
• Thikncess: 1~7mm
• Product Standard: JIS G3472
• Product Materials: Stam 290GB, Stam 340g, Stam 390g, Stam 440g,
• MOQ: 5 Tons
• Surface: Bright and Smooth Automobile Air-Condition Tube
• Temperature Classification: High Temperature Piping
• MPa Classfication: Ultra High Pressure Piping
• Standard: ASTM, GB, DIN, JIS
• Medium: Liquid
• Cross-Section Shape: Round
• Connection Type: Welding
• Packaging: in Wooden Cases or Bundles.
• Transport Package: in Bundle, Wooden Case or Customer′s Requirement
• Specification: 15~127mm
• Trademark: KINGMETAL
• Origin: Made-in-China
• HS Code: 73043190
• Production Capacity: 1000 Tons Per Month

Product Description

JIS G3472 STAM290GA STAM340G Carbon Steel Automobile Welded Tube

 

Product Description

 

JIS G3472 STAM290GA STAM340G Carbon Steel Welded Tube for Automobile

 

Outside diameter: 15.0mm up to and including127.0mm

Wall thickness: 1.0mm up to and including 7.0mm

 

Application: Automobile structural purposes

 

Grade: JIS G3472 STAM290GA, STAM 290GB, STAM 340G, STAM 390G, STAM 440G,

STAM 470G, STAM 500G, STAM 440H, STAM 470H, STAM 500H, STAM 540H

 

JIS G3472 ERW automobile structure steel tube Chemical Composition Table:

Steel Grade	Chemical Composition %
	C	Si	Mn	P	S
STAM 290GA	0.12 max.	0.35 max.	0.60 max.	0.035 max.	0.035 max.
STAM 290GB
STAM 340G	0.20 max.	0.35 max.	0.60 max.	0.035 max.	0.035 max.
STAM 390G	0.25 max.	0.35 max.	0.30~0.90	0.035 max.	0.035 max.
STAM 440G	0.25 max.	0.35 max.	0.30~0.90	0.035 max.	0.035 max.
STAM 440H
STAM 470G	0.25 max.	0.35 max.	0.30~0.90	0.035 max.	0.035 max.
STAM 470H
STAM 500G	0.30 max.	0.35 max.	0.30~1.00	0.035 max.	0.035 max.
STAM 500H
STAM 540H	0.30 max.	0.35 max.	0.30~1.00	0.035 max.	0.035 max.

 

JIS G3472 ERW automobile structure steel tube Mechanical Properties Table:

Grade	Designation	Tensile strength kgf/?	Yield Strength kgf/?	Elongation (1)% No.1 test piece No.2 Test piece	Flaring test (2)
					Size of flared bell portion (D: outside diameter of tube)
		{N/?}	{N/?}	Longitudinal direction
Grade G	STAM 290GA	30 min.	18 min.	40 min.	1.25 D
		{294} min.	{177} min.
	STAM 290GB	30 min.	18 min.	35 min.	1.20 D
		{294} min.	{177} min.
	STAM 340G	35 min.	20 min.	35 min.	1.20 D
		{343} min.	{196} min.
	STAM 390G	40 min.	24 min.	30 min.	1.20 D
		{392} min.	{235} min.
	STAM 440G	45 min.	31 min.	25 min.	1.15 D
		{441} min.	{304} min.
	STAM 470G	48 min.	33 min.	22 min.	1.15 D
		{471} min.	{324} min.
	STAM 500G	51 min.	36 min.	18 min.	1.15 D
		{500} min.	{353} min.
Grade H	STAM 440H	45 min.	36 min.	20 min.	1.15 D
		{441} min.	{353} min.
	STAM 470H	48 min.	42 min.	18 min.	1.10 D
		{471} min.	{412} min.
	STAM 500H	51 min.	44 min.	16 min.	1.10 D
		{500} min.	{431} min.
	STAM 540H	55 min.	49 min.	13 min.	1.05 D
		{539} min.	{481} min.

 

 

JIS G3472 steel tube Dimension Table:

Specified outside dia.	Specified wall thickness (mm)
(mm)	1	1.2	1.6	2	2.3	2.6	2.8	2.9	3.2	3.4	3.5	4	4.5	5	6
15.9	-	0.435	0.564	0.686	-	-	-	-	-	-	-	-	-	-	-
17.3	-	-	-	0.755	0.851	-	-	-	-	-	-	-	-	-	-
19.1	0.446	0.53	0.69	0.843	0.953	-	-	-	-	-	-	-	-	-	-
22.2	0.523	0.621	0.813	0.996	1.13	-	-	-	-	-	-	-	-	-	-
25.4	-	0.716	0.939	1.15	-	1.5	-	1.61	-	-	-	-	-	-	-
28.6	-	0.811	1.07	1.31	-	1.67	-	-	-	-	-	-	-	-	-
31.8	0.76	0.906	1.19	1.47	1.67	-	-	-	2.26	-	-	-	-	-	-
34	-	-	1.28	-	1.8	-	-	-	2.43	-	-	2.97	-	-	-
35	-	1	1.32	1.63	-	-	2.22	2.32	-	-	-	-	-	-	-
38.1	0.915	1.09	1.44	1.78	2.03	-	-	-	-	-	-	-	-	-	-
42.7	-	1.23	1.62	2.01	2.29	2.57	-	-	3.12	-	3.38	-	-	4.65	-
45	1.08	1.3	1.71	2.12	2.42	2.71	-	3.01	3.3	-	-	-	4.49	4.93	5.77
47.6	-	1.37	1.81	-	2.57	-	-	3.2	-	-	-	-	-	-	-
48.6	-	1.4	1.85	2.3	2.63	-	-	3.27	3.58	-	-	-	4.89	5.38	6.3
50.8	-	1.47	1.94	2.41	2.75	3.08	3.31	3.43	-	3.97	4.08	4.63	-	-	6.63
54	-	1.56	2.07	-	2.93	3.29	3.54	3.65	-	4.24	4.36	4.95	-	-	-
57	-	-	2.19	-	3.1	3.48	3.74	3.87	4.25	4.49	4.62	-	-	-	-
60.5	-	-	2.32	-	3.3	3.71	-	4.12	4.52	-	-	5.59	-	-	-
63.5	-	-	2.44	-	-	3.9	-	-	-	-	-	-	-	-	-
65	-	-	2.5	-	-	-	-	-	4.88	-	5.31	-	-	-	-
68.9	-	-	2.66	-	3.78	-	-	-	-	-	-	-	-	-	-
70	-	-	2.7	-	-	-	-	-	5.27	-	5.74	-	-	-	-
75	-	-	2.9	-	4.12	4.63	-	5.16	5.67	-