| Product Name | Carbon Steel Seamless / Ms Steel Pipe |
| Standard | ASTM A106,ASTM A53,API 5L Gr.B, DIN17175,DIN1629 |
| Outer Diameter: | 13.7mm-762mm |
| Wall Thickness | 2mm-80mm |
| Dia Tolerance | Control with in the standard, OD:+-1%,WT:+-10% |
| Materials | 10#,20#,45#,16Mn,A106(B,C),A53(A,B),API 5L (GR.B,X42/X52/X56/X65) API 5CT(H40,J55,K55,N80,P110),Q235,Q345,ST35.8,ST37,ST42,ST45,ST52 |
| Inspection | ISO,BV,SGS,MTC |
| Packing | 3LPE/3PP/FBE/BLACK painting/Varnish, and steel strip packed,Standard Export Seaworthy Package,or as required |
| Supply Ability | 1000 metric tons/month |
| MOQ | 5metric ton,sample order accepted |
| Shipment time | Within 7-10 workdays after receiving deposit or L/C |
| Payments | T/T,LC |
| Capacity | 250,000 tons/year |
Pipe ordered under this specification is used mainly for piping subjected to a temperature over 350℃。For example: transporting steam,water etc.
Bare pipe, black coating ( customized);
6" and below sizes In bundles with two cotton slings, other sizes in loose;
Both ends with end protectors;
Plain end, bevel end;
Marking.
Pipe End Beveling
Plastic Caps
Black Painting with Marking
Wrapper
Bundling and Sling
Package Appearance
Grade and Chemical Composition (％)
|
Grade |
C≤ |
Si |
Mn |
P≤ |
S≤ |
|
STPT370 |
0.25 |
0.10~0.35 |
0.30~0.90 |
0.035 |
0.035 |
|
STPT410 |
0.30 |
0.10~0.35 |
0.30~1.00 |
0.035 |
0.035 |
|
STPT480 |
0.33 |
0.10~0.35 |
0.30~1.00 |
0.035 |
0.035 |
|
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 |
|||
|
STPT370 |
370 min |
215 min |
30 min |
25 min |
28 min |
23 min |
|
STPT410 |
410 min |
245 min |
25 min |
20 min |
24 min |
19 min |
|
STPT480 |
480 min |
275 min |
25 min |
20 min |
22 min |
17 min |
| 1. The above elongation value is not applicable to tubes with outer diameter <40mm. But it must be recorded.2. The sample meets the requirements of JIS Z2201 standard;
3. For the tube with wall thickness <8mm, when the sample No. 12 or No. 5 is used, the minimum value of the elongation is reduced by 1mm according to the wall thickness, and 1.5% is subtracted from the above value. |
||||||
Out Diameter Inspection
Wall Thickness Inspection
End Inspection
Straightness Inspection
Seamless Pipe ship to Ecuador
UT Inspection
Appearance Inspection
-
- Tolerance of OD and W.T
Division
Tolerance on O.D
Tolerance on W.T
Hot finished Seamless Steel Pipe
D＜50m
±0.5 mm
S＜4mm
S≥4mm
±0.5mm
±12.5%
50mm≤D＜160mm
±1%
160mm≤D＜200
±1.6 mm
D≥200mm
±0.8%
Cold finished Seamless Steel Pipe
D＜40m
±0.3 mm
S＜2mm
±0.2mm
D≥40mm
±0.8%
S≥2mm
±10%
ERW Steel Pipe D＜40m
±0.3 mm
S＜2mm
±0.2mm
D≥40mm
±0.8%
S≥2mm
±10%
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%
- Tolerance of OD and W.T
Seamless Pipe Ship to Qatar
