To meet the customers’ over-expected satisfaction , we have our strong team to provide our best overall service which includes marketing, sales, designing, production, quality controlling, packing, warehousing and logistics for ASTM A53 Gi Welded ERW Pipes Mild Low Carbon Round Galvanized Steel Tube, We follow furnishing integration remedies for purchasers and hope to construct long-term, secure, honest and mutual effective associations with buyers. We sincerely look forward to your stop by.
To meet the customers’ over-expected satisfaction , we have our strong team to provide our best overall service which includes marketing, sales, designing, production, quality controlling, packing, warehousing and logistics for China Gi Steel Pipe and Galvanized Pipe Price, For many years, we have now adhered to the principle of customer oriented, quality based, excellence pursuing, mutual benefit sharing. We hope, with great sincerity and good will, to have the honor to help with your further market.
| Style | Technical | Material | Standard | Grade | Usage |
| Electric Resistance Welded (ERW) steel pipe | High Frequency | Carbon Steel | API 5L PSL1&PSL2 | GR.B,X42,X46,X52,X60,X65,X70,etc | Transportation of oil and gas |
| ASTM A53 | GR.A ,GR.B | For Structure (Piling) | |||
| ASTM A252 | GR.1, GR.2,GR.3 | ||||
| BS EN10210 | S275JRH,S275J0H,S355J0H,S355J2H,etc | ||||
| BS EN10219 | S275JRH,S275J0H,S355J0H,S355J2H,etc | ||||
| JIS G3452 | SGP,etc | Transportation of Low-pressure fluid | |||
| JIS G3454 | STPG370,STPG410,etc | Transportation of High-pressure fluid | |||
| JIS G3456 | STPG370,STPG410,STPG480,etc | high temperature steel pipes |
Pipe ordered under this specification is for pressure service at an approximate maximum temperature of 350℃。
Bare pipe, black coating or hot dip zinc-coated( customized);
In bundles with two cotton slings;
Both ends with end protectors;
Plain end, bevel end(When required by the purchaser and S≤22mm, the pipe end of should be bevelled, degree: 30° (+5°~0°), and the wall thickness of the root is not reduced by <2.4mm.);
Marking.
Grade and Chemical Composition (％)
|
Grade |
C≤ |
Si≤ |
Mn |
P≤ |
S≤ |
|
STPG370 |
0.25 |
0.35 |
0.30~0.90 |
0.040 |
0.040 |
|
STPG410 |
0.30 |
0.35 |
0.30~1.00 |
0.040 |
0.040 |
|
|
|
|
|
|
|
|
Mechanical Properties |
||||||
|
Grade |
Tensile strength |
Yield strength |
Elongation % |
|||
|
N/ m㎡ |
N/ m㎡ |
No.11 or No.12 test pieces |
No. 5 test pieces |
No. 4 test piece |
||
|
|
|
Longitudinal |
Transverse |
Longitudinal |
Transverse |
|
|
STPG370 |
370 min |
215 min |
30 min |
25 min |
28 min |
23 min |
|
STPG410 |
410 min |
245 min |
25 min |
20 min |
24 min |
19 min |
Tolerance of OD and W.T
|
Division |
Tolerance on O.D |
Tolerance on W.T |
||
|
Cold finished ERW Steel Pipe |
24A or under |
+/-0.3mm |
Under 3mm
3mm or over |
+/-0.3mm
+/-10% |
|
32A or over |
+/-0.8% |
|
|
|
| For pipes of nominal size 350A or over,the tolerance on O.D maybe determined by the circumferential length. In this case,the tolerance shall be +/-0.5% | ||||
To meet the customers’ over-expected satisfaction , we have our strong team to provide our best overall service which includes marketing, sales, designing, production, quality controlling, packing, warehousing and logistics for Hot New Products ASTM A53 Gi Seamless Welded ERW Pipes Mild Low Carbon Round Galvanized Steel Tube, We follow furnishing integration remedies for purchasers and hope to construct long-term, secure, honest and mutual effective associations with buyers. We sincerely look forward to your stop by.
Hot New Products China Gi Steel Pipe and Galvanized Pipe Price, For many years, we have now adhered to the principle of customer oriented, quality based, excellence pursuing, mutual benefit sharing. We hope, with great sincerity and good will, to have the honor to help with your further market.
