Award winner
Stainless steel floor
Reason for selection:
The floors of food processing plants are required to have corrosion resistance, heat resistance and durability. Since flat stainless steel floors are slippery, checkered stainless steel plates have been a preferred material for this application. However, checkered plates have some drawbacks; they are difficult to clean and do not drain too well. To cope with these shortcomings, "NAS Polka plate" with round protrusions has been developed and extensively used for floors of food processing facilities and chemical plants. The product is not slippery, easy to clean and drains well. The award-winning product is a 3mm-NAS Polka plate employed for the floor of a food processing plant of Riken Vitamin in Chiba Pref., which directly covers concrete underlayer.
Stainless steel type used: SUS304
Consumption: 4,200 kgs
Stainless steel roof of Centrair-Chubu International Airport
Reason for selection:
The airport is located offshore, and materials used there must withstand salt-caused corrosion.
For this reason, a highly corrosion-resistant ferritic grade with anti-glare treatment that has higher corrosion resistance than SUS316, excellent weather resistance and thermal insulation properties has been selected for the roof of the passenger terminal. Prior to installation, a real-size mockup was produced to ensure that processed parts and roof gutters work properly.
The stainless steel roof fully utilizes the beautiful aspect, toughness, weather resistance of the metal and is nicely designed. This helps make the entire structure a proper aerial entrance to the Nagoya area of Japan and has expanded the potential of this steel type in ABC (architecture, building and construction) applications.
Stainless steel type used: SUS445J2
Consumption: 751 tons
Nihonbashi Mitsui Tower
Reason for selection:
Nihonbashi Mitsui Tower is a super high-rise of 195 meters with a floor space of approximately 130,000 m2 and is intended to satisfy two different requirements; preservation of historical structures and revitalization of the local community. It is acknowledged as the first building to which "the system to designate certain sections of the town for the preservation of important cultural properties" set forth by the Tokyo metropolitan government has been applied.
Stainless steel sashes and cornice as well as prestressed concrete decorated with granite provide an appearance compatible with the historical buildings in the neighborhood.
For the exteriors, SUS445J1 is used for aesthetic purposes and improved durability and stainless steel used for the interiors is scoured and matte-finished. The Tower has raised the importance of stainless steel as an ABC material.
Stainless steel types used: SUS445J1, SUS304
Consumption: 180 tons
Stainless steel storage tank of soy sauce
Reason for selection:
Food safety is an important agenda for consumers these days and the industries concerned are working hard to satisfy HACCP (Hazard Analysis and Critical Control Point) requirements.
These award-winning stainless steel tanks were built to replace those of such other materials as concrete, FRP (fiber-reinforced plastic), epoxy-lining products for improved durability, better seismic adequacy and easier maintenance.
Three different types of stainless steel are used for the tanks; inner tanks are made of super stainless that provide strong corrosion resistance in a high chlorine environment, the jackets made of SUS 304 and the exteriors made of prepainted ferritic stainless steel for designability.
The tanks are a good success story to display and popularize various attributes of stainless steel and to improve the image of the soy sauce industry.
Stainless steel types used: SUS430L1L, SUS304, SUS312L
Consumption: 240 tons
"SOS Ladder" (Evacuation ladder)
Reason for selection:
The fire in a multi-tenant building in downtown Tokyo that claimed a few lives led to drastic changes in the fire protection law and similar buildings are now required to install fire evacuation ladders.
"SOS Ladder" obtained the certification of JFEII (Japan Fire Equipment Inspection Institute) and was launched on the market in September, 2005.
Since these ladders are used outside the buildings and durability, designability, functionality as well as strength are important factors, SUS304 are extensively used in various components including pulleys and wires.
In principle, fire protection equipment installed under the previous law must be upgraded after September 2006, increased demand for this product can be expected.
Stainless steel type used: SUS 304
Consumption: 150-380 kgs per unit
Stainless steel sink "Super Silent e-Sink" For custom kitchen
Reason for selection:
This stainless steel sink is a response to diverse needs originating from the contemporary lifestyle. Features including monocoque construction encompassing the drain made possible with the latest technology, embossed patterns of the bottom, ceramic coating to greatly improve the surface functions and composite material technology employed to suppress sound and vibration have contributed to introduce this high-performance product.
Based on one of the basic stainless steel products, this sink with such added functions as "it does not damage easily", "it does not stain" and "it's quiet", is considered a very valuable product in terms of novelty and contribution to popularize stainless steel.
Stainless steel type used: SUS304J1 Equivalent
Consumption: Approx. 7 kgs per unit
Ferritic stainless steel variant-shaped sink
Reason for selection:
While SUS 430 has sufficient corrosion resistance for sink applications, austenitic grades are usually used because they are easier to press-form.
This particular sink of a variant shape, however, is made of ferritic stainless steel. It has proved that ferritic grades with better cost performance can be used even for sinks of complicated shapes with an adequate combination of forming technology and material selection. The success story of this product has contributed to expand areas of applications and demand for ferritic stainless steel.
Stainless steel used: SUS 430
Consumption: 6.7 kgs/unit
Stainless steel "earthen pot" compatible with
IH (induction heater) cooking
Reason for selection:
IH cooking is expected to grow fast in the future due to its safety and convenience. However, its structure makes conventional pots of aluminum, copper and thermal glass as well as earthen pots unusable.
Earthen pots have been instrumental in creating a close family atmosphere in Japan and in order to maintain the tradition, an IH - compatible stainless steel pot that is made similar to an earthen pot with special overcoat has been introduced. SUS430J1L is used for this single-layered pot for uniform thermal expansion at the time of heating, which also helps keep the inside of the pot warm for a long time.
The innovative idea of making stainless steel look like clay with special overcoat has helped improve the image of stainless steel and opened up possibilities of new applications.
Stainless steel type: SUS430J1L
Consumption: 2.4 kgs/unit on the average
Valve sheet
Reason for selection:
Due to the complicated shape of the product, brass was the only material usable. Cold-forging SUS304 was tried but had only a limited success.
Then, cold-forging austenitic stainless steel of the softest quality and the lowest work hardening has been tried and proved successful. Advantages of using such extra-soft stainless steel include (1) reduction of material costs due to improved product yield and reduction of component costs to 1/3 of the previous amounts due to shorter processing time, (2) improved product uniformity with more accurate dimensions attained through continuous pressing and (3) energy saving in the use of air conditioners attributable to the change of materials.
The product demonstrates the synergy of processing technology and material technology, which is required to cold-forge stainless steel into such a complicated shape.
Stainless steel type used: SUS XM7 Modified
Consumption: 60 gms/ unit
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