Kallvalsat rostfritt stål

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  • Kallvalsat rostfritt stål

Kallvalsat rostfritt stål
Article304 Cold Rolled stainless steel sheet
Widthas your requirement
typePlate / Strip / Sheet / Coil
Thickness0.4mm; 0.5mm; 0.6mm; 0.7mm; 0.8mm; 0.9mm; 1.0mm; 1.1mm; 1.2mm; 1.3mm; 1.4mm; 1.5mm; 1.6mm; 1.7mm; 1.8mm; 1.9mm; 2.0mm~4.0mm
UsageCold rolled, annealed, pickled, skin-passed to give an appropriate luster at final stage., their glossiness and flatness are better than No.2D products. They can be competent for almost all the applications of cold-rolled stainless steel, such as kitchen and bathroom ware, surface polishing, furniture structural parts, etc.
Parkingwooden packing or
PaymentSmall quantity:T/T at sight,30% in advance ,70% after receiving the B/L cop;         Large quantity:L/C at sight
Delivery Time15days after received T/T or L/C

SUS304 chemical composition:

Hydrogen embrittlement of 304 stainless steel with different hydrogen concentrations has been investigated. An electrochemical technique was used to effectively charge the high level of hydrogen into 304 stainless steel in a short period of time.

At 25 ppm of hydrogen, 304 stainless steel loses10% of its original mechanical strength and20% plasticity. Although the ductile feature dominates the fractography, the brittle crown area near the outer surface shows the intergranular rupture effected by hydrogen.

At 60 ppm of hydrogen, 304 stainless steel loses23% of its strength and38%, where the brittle mode dominates the fracture of the materials. Experimental results show that hydrogen damage to the performance of 304 stainless steel is significant even at very low levels. The fractograph analysis indicates the high penetration ability of hydrogen in 304 stainless steel. This work also demonstrates the advantages of the electrochemical charging technique in the study of hydrogen embrittlement.

Austenitic stainless steels are very corrosion resistant in a wide range of corrosive media and they can be used in a wide range of temperatures, from cryogenic conditions up to about 1150 °C. The AISI 304 austenitic steels are widely used in chemical, petrochemical and pharmaceutical industries. Recently, ferritic stainless steels have been developed to substitute austenitic stainless steels in some ap¬plications, as automotive exhaust components, specially the upstream part of the exhaust line (manifold, down-pipe, converter shell), where temperatures can reach 1100 °C. They have advantage of lower costs than austenitic grades due to the absence of nickel, and also present lower expansion coefficient than austenitic steels, which is a great advantage when temperature cycling resistance is needed1,2.

A number of studies have been made on the initial oxidation of Fe-Cr alloys and the effect of oxygen partial pressure and of differ¬ent atmospheres on the properties of the oxides, since the high-tem¬perature oxidation resistance of these alloys depends on the oxide properties2,7.

Knowledge of the initial oxidation behavior, hardness and adher¬ence of the oxide formed on Fe-Cr alloys and stainless steels at higher peratures at atmospheric pressure is important in processes such as annealing, acid pickling and cold working.

In this work, the high perature oxidation behavior of an auste¬nitic stainless steel AISI 304 type is compared to the behavior of a ferritic stainless steel AISI 430. The scales formed in a tubular furnace under dynamic synthetic air atmosphere with 3 ppm of humidity were analyzed by x ray diffraction and Mössbauer spectroscopy.

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