Heat analysis value of EN10025-4 steel S460M chemical composition

Composition characteristics of Q420 alloy steel plate: 1.Low carbon: Due to the high requirements for toughness, weldability and cold forming performance, its carbon content does not exceed 0.20%. 2. Add manganese-based alloy elements. 3. Add auxiliary elements such as niobium, titanium or vanadium, which is beneficial to obtain fine ferrite grains and improve the strength and toughness of the Q420 alloy steel, EN10025-4 steel S460M.

2000 tons hot rolled sheet EN10025-4 steel S460M inventory list7*2920*8780, 6*1650*10570, 5.5*3000*5000, 6*2310*8500, 6*2750*9600, 7*2000*8950, 5*2570*8000, 6*1850*7510, 7*2560*8600, 8*2100*8000, 6*1750*8500, 7*2920*13000, 7*2920*8780, 8*2920*6300, 6*2960*10700, 6.5*2200*10000, 8*1800*6850, 8*3040*4000, 8*1500*4850, 8*1700*6300, 10*2000*7700, 10*2030*8200, 10*1750*6000.

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A small amount of Nb is sufficient to obtain excellent comprehensive properties of EN10025-4 steel S460M 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.