
鋼の力
Japan Quality
Specialty steel
with top-tier quality and precision
保護中: Akiyama Seiko Co., Ltd.
About Us
Our company, founded in 1927, is a specialized manufacturer of special steel round bars.
In the early Showa period, when Japan’s industrial sector was just beginning to develop, we succeeded in domestic production of free-cutting steel, which had previously relied on imports.
Free-cutting steel is an essential metal material for precision machinery components and is used in various machine parts such as automobiles, watches, home appliances, and PCs.

Do you have any troubles like these?
✓Are you experiencing machining problems caused by poor material quality?
✓Are difficult-to-machine materials shortening your cutting tool life?
✓Do you need lead-free materials without a significant loss of machinability?
✓Do you want to improve corrosion resistance while maintaining strength?
Let us handle it!
Our Strength
At our company, we specialize in free-cutting steel and other special steels, offering industry-leading quality and a broad range of materials to meet the diverse needs of our customers.
Our materials, which feature excellent machinability, high precision, corrosion resistance, and strength, help solve various manufacturing challenges, improve productivity, and prevent operational issues.
In addition, by supplying the required quantities in a timely manner according to customer needs, we have earned overwhelming support from manufacturing sites.
Let us introduce some of our highly recommended products.
ASK-3000T
First, we present the austenitic stainless steel “ASK-3000T.”This is a free-cutting stainless steel based on SUS304, which improves machinability while maintaining high corrosion resistance.
It enables the manufacturing of components that are difficult or even impossible to process with SUS304, dramatically increasing productivity.

ASK-8000
Next, we introduce the austenitic stainless steel “ASK-8000.”This is a high-strength austenitic stainless steel with excellent corrosion resistance, requiring no heat treatment.
Since heat and surface treatments can be omitted, significant reductions in manufacturing costs are possible.

Promotion Video
Service
Manufacturing and sales of special steel round bars used for cutting processes in precision and electronic device components
(such as free-cutting stainless steel, free-cutting steel, medium carbon steel, high carbon steel, etc.)
VIETNAM PLANT / SOUTHEAST ASIA SUPPLY
At our Vietnam plant (ASV), we can produce materials of the same high quality as in Japan,
and we can smoothly supply them to Thailand and other Southeast Asian countries.
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Main Products
ASK Original Steel
■Free-Cutting Steel
■Carbon Steel
■Tool Steel
■Stainless Steel
・Lead-Free Free-Cutting Steel
・High-Performance Stainless Steel
・Various JIS Standard Steels
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Company
保護中: Akiyama Seiko Co., Ltd.
Ishioka Factory: 2-2 Kashiwabara, Ishioka City, Ibaraki
Head Office: ASK Nihonbashi Building, 15-17 Nihonbashi-Kodenmacho, Chuo-ku, Tokyo, Japan
Phone +81-3-3663-0311(Head Office)
Company Profile
Corporate Website
https://www.ask-akiyama.co.jp/Our manufacturing sites

Comprehensive after-sales service
We also provide comprehensive after-sales service, and we are fully committed as a company to assisting with material selection, consulting on processing techniques, and providing relevant documentation through our dedicated departments.
The materials you can rely on for any application — that is the "ASK Brand."
If you have any questions or concerns about our products, please feel free to contact us.
Contact us保護中: Akiyama Seiko Co., Ltd.
Ishioka Factory: 2-2 Kashiwabara, Ishioka City, Ibaraki
Head Office: ASK Nihonbashi Building, 15-17 Nihonbashi-Kodenmacho, Chuo-ku, Tokyo, Japan
Phone +81-3-3663-0311(Head Office)
