External pressure has been significantly reduced, and there is a solid foundation for the RMB exchange rate to remain basically stable
Continued activity! In the first eight months, my country's foreign trade operators with import and export performance reached 630,000
More information about Standard of En10204
Difference between 3.2 and 3.1 certificates
|
Grade |
P≤ |
S≤ |
|
SGP |
0.040% |
0.040% |
|
Mechanical Properties |
|||
|
Grade |
Tensile strength |
Elongation % |
|
|
N/ m㎡ |
A50mm (No.11 &12) |
A50mm (No.5) |
|
|
SGP |
290 min |
≥30% |
≥25% |
|
The tensile test direction of No.11 and No.12 test piece is parallel to the pipe axis, while that of No.5 is perpendicular to the pipe axis. Note: The specification in this table shall not apply to the pipes whose nominal diameter is 32A (42.7mm) or under, but the elongation shall be still recorded. Elongation may be specified upon the agreement between the purchaser and the manufacturer. |
|||
Tolerance of outside diameter and wall thickness:
Tolerance of OD and W.T
|
Division |
Tolerance on O.D |
Tolerance on W.T |
|
|
Carbon ERW Steel Pipe |
10.5mm≤D≤48.6mm |
±0.5 mm |
-12.5% |
|
D＝60.5mm |
±0.5 mm |
||
|
D＝76.3mm |
±0.7 mm |
||
|
89.1mm≤D≤139.8mm |
±0.8 mm |
||
|
D＝165.2mm |
±0.8 mm |
||
|
D＝190.7mm |
±0.9 mm |
||
|
D＝216.3mm |
±1.0 mm |
||
|
D＝241.8mm |
±1.2 mm |
||
|
D＝267.4mm |
±1.3 mm |
||
|
D＝318.5mm |
±1.5mm |
||
|
355.6mm≤D≤508.0mm |
- |
||
