The common cutting methods for S690QL brinell hardness

S690QL brinell hardness, SS400 steel is one of the most commonly used hot rolled general structural steel.
SS400 steel's mechanical properties is yield strength more than 225-235MPa, tensile strength 360-510Mpa and 340-470Mpa. For SS400 steel, the C element content is 0.2% max, the Mn element content is 1.40% max, the P element content is 0.045% max, the S element content is 0.045% max.

S690QL brinell hardness China inventory: 8*2400*12000, 30*3020*7800, 20*1950*9000, 25*2210*9400, 8*2200*11200, 8*2400*12000, 22*3400*13000, 16*2150*10750, 27*3510*10500, 21.5*1630*13480, 13.6*2940*11455, 32*2520*7546, 16*2150*10450, 25*2500*12000, 8*2400*12000, 32*2500*6000, 16*2150*10350, 330*2200*4250, 22*3400*13000, 32*2500*6000, 12.9*2987*10384, 25*2700*9000, 14*1950*10000, 55*2200*8000, 13.6*2940*11455.

A plasma cutter uses a stream of compressed gas (air, nitrogen, argon, etc.) and a consumable wire electrode as the two primary feedstocks of the steel cutting process. The electrode sends a high electrical charge through the gas, raising its temperature to the point of ionization to generate extremely hot plasma (~20,000°C). This plasma is directed through the cutting tip to create a highly focussed beam, with velocities approaching the speed of sound.

Industry experts point out that employment in the steel industry will almost certainly continue to decline as a consequence of automation, even if production and profits increase. As the conservative think S690QL brinell hardness tank AEI points out, “Mr. Trump’s tariffs are trying to revive a world of steel production that no longer exists. He is taxing S690QL brinell hardness steel-consuming industries that employ 6.5 million and have the potential to grow more jobs to help a declining industry that employs only 140,000.”

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