Structural steel pipe is a kind of steel pipe with excellent mechanical properties and good welding performance, which is widely used in various building structures, Bridges, machinery manufacturing, automobile manufacturing and other fields. Its unique material and manufacturing process make it have high strength, high toughness, corrosion resistance and other excellent characteristics.
API 5L/ASTM A106 GR.B Structural Steel Pipe | ||||
DN | OD(mm) | SCH40(6m/5.8m) | SCH40(6m/5.8m) | SCH40(6m/5.8m) |
WT | WT | WT | ||
(mm) | (mm) | (mm) | ||
1/4’’ | 13.7 | 2.24 | 3.02 | / |
3/8’’ | 17.1 | 2.31 | 3.2 | / |
1/2’’ | 21.3 | 2.77 | 3.73 | 4.78 |
3/4’’ | 26.7 | 2.87 | 3.91 | 5.56 |
1’’ | 33.4 | 3.38 | 4.55 | 6.35 |
1-1/4’’ | 42.2 | 3.56 | 4.85 | 6.35 |
1-1/2’’ | 48.3 | 3.68 | 5.08 | 7.14 |
2’’ | 60.3 | 3.91 | 5.54 | 8.74 |
2-1/2’’ | 73 | 5.16 | 7.01 | 9.53 |
3’’ | 88.9 | 5.49 | 7.62 | 11.13 |
3-1/2’’ | 101.6 | 5.74 | 8.08 | / |
4’’ | 114.3 | 6.02 | 8.56 | 13.49 |
5’’ | 141.3 | 6.55 | 9.53 | 15.88 |
6’’ | 168.3 | 7.11 | 10.97 | 18.26 |
8’’ | 219.1 | 8.18 | 12.7 | 23.01 |
10’’ | 273 | 9.27 | 15.09 | 28.58 |
12’’ | 323.8 | 10.31 | 17.48 | 33.32 |
14’’ | 355.6 | 9.53 | 11.13 | 19.05 |
16’’ | 406.4 | 9.53 | 12.7 | 21.44 |
18’’ | 457 | 9.53 | 14.27 | 23.83 |
20’’ | 508 | 9.53 | 15.09 | 26.19 |
24’’ | 610 | 9.53 | 17.48 | 30.96 |
Grade | Chemical Composition | |||||||
C | Si | Mn | P | S | Cr | Ni | Cu | |
10 | 0.07-0.14 | 0.17-0.37 | 0.35-0.65 | ≤0.035 | ≤0.035 | ≤0.15 | ≤0.25 | ≤0.25 |
20 | 0.17-0.24 | 0.17-0.37 | 0.35-0.65 | ≤0.035 | ≤0.035 | ≤0.25 | ≤0.25 | ≤0.25 |
Q345 | 0.12-0.20 | 0.20-0.55 | 1.20-1.60 | ≤0.045 | ≤0.045 | – | – | – |
Mechanical Properties | ||
Tensile Strength(Mpa) | Yield Strength(Mpa) | Elongation(%) |
335-457 | ≥205 | ≥24 |
410-550 | ≥245 | ≥20 |
490-665 | ≥325 | ≥21 |
1.High strength: After special process treatment, this steel pipe has high tensile strength and yield strength. For example, ASTM A53 steel pipescan withstand large loads and impact forces.
2.Good toughness: When it is subjected to external force, it can produce certain plastic deformation without damage, and has good toughness.
3.Excellent welding performance: It has high welding joint strength and stable weld quality, which can meet the needs of various welding processes.
4.Corrosion resistance: Part of the steel pipe after anti-corrosion treatment, can resist the erosion of various corrosive media, prolong the service life.
Round bars→Inspection→Peeling→Cut to length→Grinding→Centering→Heating→Piercing→Pickling→Head cutting→Grinding→Cold rolling\cold drawing→Degrease→Heat treatment→Straightening→Cutting→Pickling→Product inspection→Cutting→Packing storage
Building structure: it is widely used in high-rise buildings, large stadiums, convention and exhibition centers and other building structures as load-bearing and supporting members.
Bridge engineering: In bridge engineering, this kind of steel pipe is often used in key parts such as pier, bridge tower and main beam to improve the bearing capacity and stability of the bridge.
Machinery manufacturing: In the field of machinery manufacturing, it can manufacture all kinds of heavy machinery, pressure vessels, pipelines and other equipment.
Automotive manufacturing: It plays an important role in automotive manufacturing where it is used to manufacture key components such as vehicle frames, axles, and drive shafts.
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