Structure Steel Seamless Pipe
|
● Standard GB/T8162-2008, ISO2937, ASTM A53, ASTM A106, JIS G 3441, BS EN 10210-1 |
|
● Uses: The scope of use includes general structural and mechanical structures, and a large number of structural tubes used in construction, machinery, transportation, aviation, petroleum exploration and other industries. |
|
● Dimensional tolerance |
|
standard |
Outer diameter tolerance |
Thick wall tolerances` |
||
|
GB/T 8162 |
D<50 |
±0.50mm |
S<4mm |
±12.5% |
|
D≥50 |
±1% |
4-20mm |
+15/-12.5% |
|
|
S≥20mm |
±12.5% |
|||
|
DIN1629 |
D50 |
±0.50mm |
S2Sn |
+15/-10% |
|
D48.3D48.3 |
±1% |
2SnS4Sn |
+12.5/-10% |
|
|
S4Sn |
±9% |
|||
|
ASTM A53 |
D<48.3 |
±0.4/-0.79mm |
±12.5% |
|
|
D ≥ 48.3 |
±1% |
|||
|
ASTM A106 |
D<48.3 |
±0.4/-0.79mm |
±12.5% |
|
|
D48.3-114.3 |
±0.79mm |
|||
|
D≥114.3 |
±1.59/-0.79mm |
|||
Seamless steel pipe for structural use Domestic main materials are 10#, 20#, 35#, 45#, 16Mn, 27SiMn
● Mechanical properties
|
standard |
Steel grade |
Tensile strength (MPa) |
Yield strength (MPa) |
Elongation rate |
|
|
<16mm |
16-30mm |
||||
|
GB/T 8162 |
10 |
335 |
205 |
195 |
twenty four |
|
20 |
390 |
245 |
235 |
20 |
|
|
35 |
510 |
305 |
295 |
17 |
|
|
45 |
590 |
335 |
325 |
14 |
|
|
16Mn |
490 |
325 |
315 |
twenty one |
|
|
DIN 1629 |
<16mm |
>16mm |
|||
|
ST35 |
345-460 |
235 |
225 |
25 |
|
|
ST45 |
440-550 |
255 |
245 |
twenty one |
|
|
ST55 |
540-645 |
295 |
285 |
17 |
|
|
ST52 |
490-630 |
355 |
345 |
twenty two |
|
|
ST45 |
590-730 |
335 |
325 |
14 |
|
|
ASTM A53 |
A |
330 |
205 |
||
|
B |
415 |
240 |
|||
|
ASTM A106 |
A |
330 |
205 |
|
|
|
B |
415 |
240 |
|||
|
C |
485 |
275 |
|||
● Chemical composition (%):
| standard | Grade | C | Si | Mn | P≤ | S≤ | Cu≤ | Ni≤ | Cr≤ | Mo≤ | V≤ |
| GB/T 8162 | 10 | 0.07-0.14 | 0.17-0.37 | 0.35-0.65 | 0.035 | 0.035 | 0.25 | 0.25 | 0.15 | / | / |
| 20 | 0.17-0.24 | 0.17-0.37 | 0.35-0.65 | 0.035 | 0.035 | 0.25 | 0.25 | 0.25 | / | / | |
| 35 | 0.32-0.39 | 0.17-0.37 | 0.50-0.80 | 0.035 | 0.035 | 0.25 | 0.25 | 0.25 | / | / | |
| 45 | 0.42-0.50 | 0.17-0.37 | 0.50-0.80 | 0.035 | 0.035 | 0.25 | 0.30 | 0.25 | / | / | |
| 16Mn | 0.12-0.20 | 0.20-0.55 | 1.20-1.60 | 0.045 | 0.045 | 0.25 | 0.25 | 0.25 | / | / | |
| DIN 1629 | St35 | ≤0.18 | 0.15-0.35 | 0.35-0.65 | 0.035 | 0.035 | 0.25 | 0.25 | 0.25 | / | / |
| St45 | ≤0.25 | 0.15-0.35 | 0.50-0.80 | 0.035 | 0.035 | 0.25 | 0.25 | 0.25 | / | / | |
| St55 | 0.33-0.41 | 0.15-0.35 | 0.50-0.80 | 0.035 | 0.035 | 0.25 | 0.25 | 0.25 | / | / | |
| St52 | ≤0.20 | ≤0.55 | ≤1.50 | 0.035 | 0.035 | 0.25 | 0.25 | 0.25 | / | / | |
| ASTM A53 | CK45 | 0.42-0.50 | 0.17-0.37 | 0.50-0.80 | 0.035 | 0.035 | 0.25 | 0.25 | 0.25 | / | / |
| ASTM A106 | A | ≤0.25 | / | ≤0.95 | 0.05 | 0.045 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 |
| B | ≤0.30 | / | ≤1.20 | 0.05 | 0.06 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 | |
| A | ≤0.25 | ≥0.10 | 0.27-0.93 | 0.035 | 0.035 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 | |
| B | ≤0.30 | ≥0.10 | 0.29-1.06 | 0.035 | 0.035 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 | |
| C | ≤0.35 | ≥0.10 | 0.29-1.06 | 0.035 | 0.035 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 |
Key words: structural pipe , seamless steel pipe for structure , 20# seamless steel pipe , 45# seamless steel pipe , 27SiMn seamless steel pipe
3 Comments
Hot Rolled Carbon Boiler Pipe SCH 40.
Boiler Tubes ASTM A179 Thchnique: Cold-drawn Size: 8-89*1.5-12mm Type: Seamless .
API 5CT Steel Tube,10#,20#,45#,API N80, API 5L seamless steel tube,OD 25-325mm OD 4-70mm Certificates: API5L,ISO, Payment terms: L/C or T/T. Length:1~15m.
Hot Dip Galvanized Steel Pipe，Outer diameter: 20 ~ 219mm. 2) Wall thickness: 1.0~ 12mm 3) Spec.: Q195, Q215, Q235, Q345 .
Q195 Q235 Steel Pipe,steel pipe welded steel pipe Thickness: 1.5mm - 4.5mm steel pipe Diameter: 20.00mm - 273.00mm Q235 & Q195 .
Cold drawn steel tube Size: OD- 1/8"--3" WT: SCH10s-SCh160 Type: Seamless Delivery Condition: Anti-Oxdation Application: General structure and mechanical purpose Standard: GB/T 8162-2008 Grade of Steel: 10, 20, 35, 45, 40MnZ, 20Cr.