Why a516 grade 70 density is generally not heat treated

Our company is China's 10th largest supplier & Exporter of stainless steel, carbon steel plate and section, alloy steel plate and pipes. We are specialized in stocking & distributing various Stainless Steel, carbon steel plates, a516 grade 70 density angle steel, H beam steel to worldwide for specific & urgent requirements. We have a fully advanced and modernized warehouse that stores tonnes of our value-adding a516 grade 70 density products, which we source out from the mills that are compliant with the universal guidelines for plate production.

S355N is a kind of weldable fine grain structural steel grade under EN10025-3 standard. It is often delivered in normalized or normalized rolled condition. There are various shapes available for a516 grade 70 density, S355N: steel plates, strip and steel sections. When producing this steel S355N plates, dimension, tolerances on thickness, width, length and shape shall be in accordance with the requirement given in the order by reference to the relevant documents according to EN10025-1 standard.

Corrosion resistant steel plate, as a new generation of advanced steel material, has 2-5 times of atmospheric corrosion resistance as ordinary carbon steel such as a516 grade 70 density, and the longer the service time, the more prominent the corrosion resistance. Due to its characteristics of rust resistance, coating free, thinning and consumption reduction, labor saving and energy saving, corrosion resistant steel plate can be applied to steel structures exposed to the atmosphere for a long time, such as buildings, vehicles, bridges, towers, etc., and can also be used to manufacture structural parts such as containers, railway vehicles, oil derricks, seaport buildings, oil production platforms, etc.

The effect of nitrogen on steel performance is similar to that of carbon and phosphorus. With the increase of a516 grade 70 density nitrogen content, the strength of steel can be improved, plasticity especially toughness can be significantly reduced, weldability becomes worse, and cold brittleness is intensified. Nitrogen with aluminum, niobium, vanadium and other elements can reduce its adverse effects, improve the performance of a516 grade 70 density steel, can be used as an alloying element of low alloy steel.

a516 grade 70 density, St52-3 steel is a low alloy, high strength structural steel which can be readily welded to other weldable steel. St52-3 steel’s mechanical properties is yield strength more than 355 MPa, tensile strength 490-630Mpa. For St52-3 steel, the C element content is 0.24%, the Si element content is 0.55% max, the Mn element content is 1.60% max, the P element content is 0.045% max, the S element content is 0.045% max.

If you are in the search of best quality of a516 grade 70 density structural steel plate then you have landed on the right place. These high quality structural steel plates are used for a long time as they have a long life due to their best and advance manufacturing techniques. These a516 grade 70 density plates are best and ideal for temperature rise work, high pressure and tank fabrication work where accurate & excellent toughness is required for better results. Welcome to our factory. We supply our products to all the leading industries and customers who are satisfied with our production and quality.

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