A small amount of Nb is sufficient to obtain excellent comprehensive properties of A514 grade B high strength steel plate etc. steel material, because at low Nb concentration, the yield strength of steel material increases faster and is proportional to the concentration, but when the Nb content is greater than 0.03%, the strengthening effect begins to decrease. Studies have shown that when the Nb content is greater than 0.06%, excess Nb will no longer strengthen the steel material.
ST37-2 is a kind of low carbon steel with carbon content of 0.20%, similar to S235JR or Q235 A514 grade B high strength steel plate. It's not as strong as common ASTM A36, but it is also widely applied by everyday uses and structural applications where high strength is not so important. Equal ST37-2 angle steel size: A514 grade B high strength steel plate Size: 20 × 20 mm to 200 × 200 mm. Thickness: 3 - 35 mm. Length: 6 m, 9 m or as required. Unequal ST37-2 angle steel size: A514 grade B high strength steel plate Size: 30 × 20 mm to 250 × 90 mm. Thickness: 3 to 10 mm. Length: 6 m, 9 m, 12 m or per your request.
Steel prices in Europe are under downward pressure due to temporary shutdowns by auto makers in most of Europe and the disruption of trade flows due to reduced trade activity in the construction and other steel industries. Despite the import safeguard measures adopted in Europe, some key steel prices have reached a three-year low in 2019. At that time, the European market was oversupplied. Despite the import safeguard plan, the imports to the European Union remained at a historical high, and now the A514 grade B high strength steel plate and so on steel price is even close to the level of 2009.
