JIS G3472 Carbon Steel Tubes For Automobile
Grade: STAM 290GB, STAM 390G, STAM 440G, STAM 470G
O.D.: 15.9-101.6mm
Wall Thickness: 1.0-6.0mm
Length: 3000 - 9000mm
JIS G3472 Welded Steel Tubs Description
GNEE Group specializes in producing JIS G3472 automotive resistance welded pipes. The steel pipe has an outer diameter ranging from 15.0 millimeters (inclusive) to 127.0 millimeters (inclusive), with a wall thickness ranging from 1.0 millimeters (inclusive) to 7.0 millimeters (inclusive).
As a professional JIS G3472 steel pipe manufacturer, we can produce JIS G3472 welded pipes according to specifications beyond standard sizes. We provide quality inspection services including hardness testing, chemical property testing, mechanical property testing, and more to ensure all pipes meet standard requirements. Feel free to contact us anytime if you have any specific needs.
JIS G3472 ERW Tube Specification
| Standard | JIS G3472 |
| Grade | STAM 290GB, STAM 390G, STAM 440G, STAM 470G |
| OD | 15.9-101.6mm |
| WT | 1.0-6.0mm |
| Length | 3000 - 9000mm |
GNEE JIS G3472 ERW Automobile Structure Steel Tube Chemical Composition
|
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 |
|||||
|
STAM 440H |
|||||
|
STAM 470G |
|||||
|
STAM 470H |
|||||
|
STAM 500G |
0.30 max. |
0.35 max. |
0.30~1.00 |
0.035 max. |
0.035 max. |
|
STAM 500H |
|||||
|
STAM 540H |
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GNEE JIS G3472 ERW automobile structure steel tube Mechanical Properties
|
Grade |
Designation |
Tensile strength (MPa) |
Yield Strength |
Elongation (1)% |
Flaring test (2) |
| No.11 Test piece No.12 Test piece |
Size of the flared bell portion (D: OD) |
||||
| Longitudinal direction | |||||
|
Grade G |
STAM 290GA |
290 min. |
175 min. |
40 min. |
1.25 D |
|
STAM 290GB |
290 min. | 175 min. | 35 min. | 1.20 D | |
|
STAM 340G |
340 min. |
195 min. |
35 min. |
1.20 D | |
|
STAM 390G |
390 min. |
235 min. |
30 min. |
1.20 D | |
|
STAM 440G |
440 min. |
305 min. |
25 min. |
1.15 D | |
|
STAM 470G |
470 min. | 325 min. | 22 min. | 1.15 D | |
|
STAM 500G |
500 min. |
355 min. |
18 min. |
1.15 D | |
| Grade H |
STAM 440H |
440 min. |
355 min. |
20 min. |
1.15 D |
|
STAM 470H |
470 min. |
410 min. |
18 min. |
1.10 D | |
|
STAM 500H |
500 min. | 430 min. | 16 min. | 1.10 D | |
|
STAM 540H |
540 min. |
480 min. |
13 min. |
1.05 D |
GNEE JIS G3472 ERW Automobile Structure Steel Tube
GNEE Test for JIS G3472 Welded Pipe
|
Chemical analysis |
Non-destructive testing (NDT) |
| Mechanical test | Tensile test |
| Flaring test | Ultrasonic examination |
| Eddy current examination | Bent and flattening test |
GNEE Services
- Customized steel pipe services
- Steel Pipe Quality Inspection Services
- Third-Party Inspection Services
- Steel Pipe Processing Services, including grooving, cutting, coating, and other processing techniques
- 24/7 Online Solutions for Your Steel Pipe Needs
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