What is difference SMA400AP hot rolled steel bar and s235

Home > FAQ

What is difference SMA400AP hot rolled steel bar and s235

We will return our customers with zealous service attitude, high quality products and favorable price. We have been accumulating, perfecting, developing and expanding constantly. We have huge SMA400AP hot rolled steel bar steel products stock. We have won the trust and support of our customers with high-quality service and excellent product quality. The company adheres to the development concept of honesty and win-win cooperation. We are willing to form an alliance with like-minded partners to work together for development and common progress.

The advantages of SMA400AP hot rolled steel bar, medium and thick boiling steel plate: The surface is relatively smooth, the quality is good, and it is easy to process. Because medium and thick boiling steel plate does not have concentrated shrinkage holes, the amount of deoxidizer is small, and boiling steel plate price is lower than other steel plates. Disadvantages of medium and thick boiling steel plate: it has a lot of gas content and impurities, it is not easy to weld, and its bearing capacity is worse than other steel plates, so it is not suitable for parts that need to bear gravity.

Alloy spring steel is a kind of steel which can improve the mechanical properties, hardenability and other properties of the steel by adding some alloy on the basis of carbon steel to meet the requirements of manufacturing various springs. Its advantages are that it integrates other materials, making spring more stable, durable, long life. SMA400AP hot rolled steel bar, Alloy spring steel has high elastic limit, high yield ratio, high fatigue strength and enough toughness.

Erosion wear of wear-resistant steel plates is very common, because rain erosion is an inevitable natural damage. Since the problem cannot be solved from the source, we should take appropriate measures to reduce the damage to a lower level. To this end, we can properly refurbish the wear-resistant steel plate, SMA400AP hot rolled steel bar. The method of electrothermal welding is adopted for the connecting parts of the wear-resistant steel plate, and the plate is well fixed, and the brittleness of the plate is reduced as much as possible. So that the plate can not be damaged when it is subjected to wind and rain.

Q690E high strength steel chemical composition: C: 0.08-0.15, Si: 0.17-0.37, Mn: 0.40-0.70, S: ≤0.035, P: ≤0.035, Cr: 0.30~0.60, Cu: ≤0.030, Ni: ≤0.030, V: 0.15-0.30, Mo: 0.25-0.35
Q690E mechanical properties:
Tensile strength σb (MPa): ≥440
Yield strength σs (MPa): ≥225
Elongation δ5 (%): ≥22
Reduction of area ψ (%): ≥50
Impact energy Akv (J): ≥78

Keep close relationship with all manufacturers and users, cooperate sincerely, share weal and woe together. We are deeply tolerant of travelling with you! We value and value each other's career and friendship. No matter when and where, all our staff will spare no effort to put into the work, and do their best to provide SMA400AP hot rolled steel bar satisfactory services for all friends, so as to achieve win-win and multi win for each other.

After-sales service team is a key department to test the steel quality. Product quality is always the foundation of our survival and development. The company's full inspection from raw materials to finished products; and implements standardized, scientific, and strict internal quality control and management systems in accordance with the process flow during the production process; products can only leave the factory if qualified, and follow-up problem solving systems are implemented in after-sales services to guarantee the customers’ interest.

Ask for the instant quotation