Abstract:
ABSTRACT The invention relates to a suction roll shell 9 having a plurality of through holes 7. The shell is made of a stainless ferrite-austenite steel having a micro-structure essentially consisting of 35-65 % by volume of ferrite and 35-65 % by volume of austenite. The steel has a composition containing, among other things, 0.005-0.07 C and 0.15-0.30 N, in % by weight. The invention also relates to a suction roll comprising the inventive suction roll shell and a method of producing a steel product.
Abstract:
The invention relates to a duplex stainless steel having austenitic-ferritic microstructure of 35-65% by volume, preferably 40-60% by volume of ferrite and having good weldability, good corrosion resistance and good hot workability. The steel contains 0.005-0.04% by weight carbon, 0.2-0.7% by weight silicon, 2.5-5% by weight manganese, 23-27% by weight chromium, 2.5-5% by weight nickel, 0.5-2.5% by weight molybdenum, 0.2-0.35% by weight nitrogen, 0.1-1.0% by weight copper, optionally less than 1% by weight tungsten, less than 0.0030% by weight one or more elements of the group containing boron and calcium, less than 0.1% by weight cerium, less than 0.04% by weight aluminium, less than 0.010% by weight sulphur and the rest iron with incidental impurities.
Abstract:
The invention relates to a stainless steel product, particularly to a duplex stainless steel casting with high machinability, to the use of the product and to the method to produce the product. The product contains in weight percent up to 0.07% carbon, up to 2% silicon, 3-8% manganese, 19-23% chromium, 0.5-1.7% nickel, up to 1% of molybdenum and/or tungsten with the formula (Mo+½W) less than 1%, up to 1% copper and 0.15-0.30% nitrogen, the remainder being iron and incidental impurities.
Abstract:
The invention relates to a stainless steel product, particularly to a duplex stainless steel casting with high machinability, to the use of the product and to the method to produce the product. The product contains in weight percent up to 0,07% carbon, up to 2% silicon, 3-8% manganese, 19-23% chromium, 0,5-1,7% nickel, up to 1% of molybdenum and/or tungsten with the formula (Mo+1/2W) less than 1%, up to 1% copper and 0,15-0,30% nitrogen, the remainder being iron and incidental impurities.
Abstract:
La invención se refiere a un producto de acero inoxidable, particularmente a una pieza moldeada de acero inoxidable dúplex con alta mecanibilidad, al uso del producto y para el método para producir el producto. El producto contiene en porciento en peso hasta 0.07% de carbono, hasta 2% de silicio, 3-8% de manganeso, 19-23% de cromo, 0.5-1.7% de níquel, hasta 1% de molibdeno y/o tungsteno con la formula (Mo + 1/2 W) menor de 1%, hasta 1% de cobre y 0.15-0.30% de nitrógeno, el resto siendo fierro e impurezas incidentales.
Abstract:
The invention relates to a duplex stainless steel having austenitic-ferritic microstructure of 35-65 % by volume, preferably 40-60 % by volume of ferrite and having good weldability, good corrosion resistance and good hot workability. The steel contains 0,005-0,04 % by weight carbon, 0,2-0,7 % by weight silicon, 2,5-5 % by weight manganese, 23-27 % by weight chromium, 2,5-5 % by weight nickel, 0,5-2,5 % by weight molybdenum, 0,2-0,35 % by weight nitrogen, 0,1 -1,0 % by weight copper, optionally less than 1% by weight tungsten, less than 0,0030 % by weight one or more elements of the group containing boron and calcium, less than 0,1 % by weight cerium, less than 0,04 % by weight aluminium, less than 0,010 % by weight sulphur and the rest iron with incidental impurities.
Abstract:
The invention relates to a duplex stainless steel having austenitic-ferritic microstructure of 35-65% by volume, preferably 40-60% by volume of ferrite and having good weldability, good corrosion resistance and good hot workability. The steel contains 0.005-0.04% by weight carbon, 0.2-0.7% by weight silicon, 2.5-5% by weight manganese, 23-27% by weight chromium, 2.5-5% by weight nickel, 0.5-2.5% by weight molybdenum, 0.2-0.35% by weight nitrogen, 0.1-1.0% by weight copper, optionally less than 1% by weight tungsten, less than 0.0030% by weight one or more elements of the group containing boron and calcium, less than 0.1% by weight cerium, less than 0.04% by weight aluminium, less than 0.010% by weight sulphur and the rest iron with incidental impurities.
Abstract:
The invention relates to a stainless steel product, particularly to a duplex stainless steel casting with high machinability, to the use of the product and to the method to produce the product. The product contains in weight percent up to 0,07% carbon, up to 2% silicon, 3-8% manganese, 19-23% chromium, 0,5-1,7% nickel, up to 1% of molybdenum and/or tungsten with the formula (Mo+1/2W) less than 1%, up to 1% copper and 0,15-0,30% nitrogen, the remainder being iron and incidental impurities.