Cause analysis of slag hanging in S690QL rockwell hardness cutting process

Due to vast experience & concerted efforts of all employees, we are known as a reliable supplier of API 5l Line Pipe, seamless pipes and ERW pipes. Our S690QL rockwell hardness customers in the world has about 4000 clients in 70 countries such as Bangladesh, Saudi Arabia, Iran, Iraq, United Arab Emirates, Qatar, Bahrain, Oman, Kuwait, Turkey, Egypt, Jordan, Philippine, Singapore, Malaysia, Indonesia, Thailand, Vietnam, South Korea, Japan, Sri Lanka, Bangladesh, Argentina, Brazil, Colombia, Guyana, United States Of America, Canada, Mexico, Jamaica, Germany, France, Italy, United Kingdom, Spain, Netherlands, Belgium.

40CrMo alloy structural steel specification
Grade: 40CrMo
Standard: GB/T 3077-1988
Mechanical properties:
Tensile strength σb (MPa): ≥1080 (110)
Yield strength σs (MPa): ≥930 (95)
Elongation rate δ5 (%): ≥12
Section shrinkage ψ (%): ≥45
Impact energy Akv (J): ≥63
Impact toughness value αkv (J / cm2): ≥78 (8)
Hardness: ≤ 217HB
Sample size: Sample blank size is 25mm

S690QL rockwell hardness and so on steel structure engineering steel has good plasticity, which can make the structure have obvious deformation before being destroyed, so as to avoid brittle failure of structure. The good plasticity of steel can adjust the local peak stress to redistribute the stress, and improve the ductility of components, so as to improve the seismic capacity of the structure. The impact toughness of S690QL rockwell hardness and so on steel structure engineering steel is good, which can improve the ability of resisting dynamic load and avoid the occurrence of cracks and brittle fracture.

A small amount of Nb is sufficient to obtain excellent comprehensive properties of S690QL rockwell hardness 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.

Mild steel plate product S690QL rockwell hardness stock: 6*3120*5400, 6.5*1600*6000, 10*2900*9500, 7*2800*7200, 9*2400*8000, 7*2800*7000, 6*2850*4900, 10*2000*9870, 9*2000*7960, 6*1500*12000, 11*3100*9600, 7*3010*5550, 6*3320*6000, 12*1300*4000, 11*1720*4000, 11*1910*13350, 11*1510*6800, 6*3170*4700, 12*2660*5800, 11*1750*7270, 11*3000*9230, 11*1690*7500, 6.5*2750*12000, 11*2150*7740, 11*1750*7280, 11*3100*9400, 11*1750*7000.

Our company has its own steel plate manufacturing plant, processing plant and steel pipe plant. We can machine the steel according to the S690QL rockwell hardness customer's requirements and meet the customer's requirements. If you want to ask any questions about steel products, please contact us directly. Our customer service staff will give you a detailed answer. If you want to purchase S690QL rockwell hardness steel products, please tell me your specific needs, we have professional business personnel to communicate with you.

Relying on the background of high-quality steel resources and its own strong steel machining capabilities, BBN comany can not only supply various steel material products, such as steel coils, steel plates, S690QL rockwell hardness sheet, steel pipes, and shaped steels, but also provide a variety of steel deep processing services like cutting, welding and grinding. Through continuous technological innovation and after-sales service optimization, the company has its own world on the domestic and international steel industry stage!