Seamless steel tubes are widely used in cantilever structures due to their high strength, uniformity, and durability. These tubes are manufactured without welded seams, ensuring superior structural integrity and resistance to stress concentrations-critical for cantilever applications where load-bearing capacity and stability are essential.
Chemical composition:
| Grade | Chemical Components(%) |
| C | Si | Mn | P | S | Cr | Ni | Cu |
| BJ770 | ≤0.12 | ≤1.0 | ≤1.0 | ≤0.040 | ≤0.030 | 16.0~18.0 | | |
| BJ890 | ≤0.19 | ≤0.50 | ≤1.80 | ≤0.025 | ≤0.015 | | | |
Mechanical properties: | Grade | Tensile strength (MPa) | Yield strength (MPa) | Elongation (%) |
| BJ770 | ≥450 | ≥770 | ≥30 |
| BJ890 | 960~1110 | ≥890 | ≥14 |
FAQ
1. Q:Are you trading company or manufacturer?
A: We are professional manufacturer for steel pipes,and our company also is a very protessional and technical foreign trade company for steel products. We have more export expenence with compettive price and best after-sales service Apart from this,we can provide a wide range of steel products to meet the requirement of customer.
2. Q:Can you send samples?
A:Of course, we can send samples to all parts of the world, our samples are free, but customers need to bear the courier costs.
3. Q:About product prices?
A:Prices vary from period to period due to cyclical changes in the price of raw materials.
4. Q:How long does your delivery time take?
A:In general, our delivery time is within 7-25 days, and may be delayed if the demand isextremely large or special circumstances occur.
5. Q:Does the product have quality inspection before loading?
A:Of course, all our products are strictly tested for quality before packaging, and unqualified products will be destroyed.
Product Tags:
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High Strength ASTM A500 Gr. C A519 4140 Seamless Steel Pipe for Cantilever Structure, Crane Boom and Support Beam Images
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