News Release
October 30, 2023
Proterial, Ltd.

Announcement of the latest addition to the additive manufacturing
powder series offering, featuring aluminum 6000 series alloy powder
Proterial, Ltd. ("Proterial") unveiled its latest Aluminum 6000 (Al6000) series aluminum alloy powder.
This powder has been trademarked as ADMUSTER🄬 L61P and is expected to accelerate thedeployment of metal additive manufacturing globally in sectors that requires lightweight and highperformance aluminum alloys. Proterial has collaborated with the Singapore Institute of Manufacturing
Technology (“SIMTech”), a research institute of the Agency for Science, Technology and Research(“A*STAR”) in Singapore, to develop the aluminum alloy powder.
1. Background
The ADMUSTER L61P was developed as part of the A*STAR SIMTech-Proterial Additive Manufacturing Lab(formerly “A*STAR SIMTech-Hitachi Metals Additive Manufacturing Lab”), set up in October 2018 todevelop high quality metal additive manufacturing powders and associated printing processes for emerging
industrial applications.
Al6061 alloy, which the powder is based on, is one of the most used aluminum materials in sectors such as
aerospace, automotive and semiconductor industries. It is commonly used in aviation interior parts due to its
light weight and good mechanical properties, as well as good post processibility. However, its applicability inadditive manufacturing has been limited as micro-cracks exist in the printed material due to the nature of theprocess.
2. Outline
To address the issue above, Proterial and A*STAR’s SIMTech improved the composition of the Al6061 alloy
by incorporating elemental additives and establishing precise guidelines on the elements and proportions usedin formulating the alloy, as well as developing the powder production and additive manufacturing processes
with good quality control. These resulted in the development of Al6061-based alloy powder, ADMUSTER
L61P, which demonstrates superior strength characteristics compared to the Al6061 alloy material, with crack
issues mitigated.
Proterial and A*STAR’s SIMTech aim to achieve early practical applications via validation testing bycollaborating with industry partners in the aerospace, automotive and semiconductor manufacturing equipment
industries, as well as partner with additive manufacturing experts to facilitate the widespread use ofADMUSTER L61P among end-users. Both parties will also work collaboratively to address technicalchallenges such as developing printing processes compatible with various types and models of additive
manufacturing equipment and their post-processing, with the goal of achieving mass production of industrial
components using ADMUSTER L61P. This powder will be exhibited at Formnext to be held in Messe
Frankfurt (exhibition area by Proterial is A55 in Hall 11), Germany from Nov. 7, 2023.
■Comments by Dr Sharon Nai, R&D Director, SIMTech, A*STAR“Developed with the combined expertise of A*STAR’s SIMTech in additive manufacturing R&D and Proterial inmetal powder development, this new aluminium alloy powder will be one of the many solutions from our strong
partnership to address metal additive manufacturing challenges for impactful industry applications. A*STAR’s
SIMTech looks forward to further collaboration with Proterial to continue pushing the boundaries in developing new
specialty alloys for additive manufacturing and meeting industry needs.”■Comments by Dr Mark Y. Maruno, President, Additive Manufacturing Solution CV, R&D Division, Proterial“Proterial has been collaborating with A*STAR since 2018 to advance the development of innovative additive
manufacturing materials and optimal printing processes to eliminate barriers for the industry‘s adoption ofProterial, Ltd.
Toyosu Prime Square, 5-6-36 Toyosu, Koto-ku, Tokyo 135-0061, Japanwww.proterial.com
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additive manufacturing, to achieve innovative and sustainable products. Proterial is excited to unveil this newaluminium alloy powder developed under the joint collaboration with SIMTech. Proterial and SIMTech willcontinue to pursue the development of innovative materials and processes tailored to the needs of various
industries, contributing to the realisation of a sustainable society.”

Contact for press: Corporate Communications Department, Proterialhttps://www.proterial.com/e/contact/
ADMUSTER and ADMUSTER L61P are registered trademark or trademark of Proterial, Ltd.

■About PROTERIAL“Proterial” reflects the essence of our corporate philosophy, which consists of three elements: Mission: “Make thebest quality available to everyone;” Vision: “Leading sustainability by high performance;” and Values: “Unfalteringintegrity” and “United by respect.” It combines “pro-” with the word “material.”“Pro-” represents our “three pros”:
Professional — work that exceeds expectationsProgressive — a spirit that keeps challengingProactive —an enterprising attitude“Material” refers to the high-performance materials that our original technologies produce and underpinned by thethree pros. With our focus on solving customer issues and bringing new levels of value, we promise to contributeto the realization of a sustainable society through the products and services that embody our philosophy.

■Proterial, Ltd. — Company Overview
Established: April 1956
Head office: Toyosu Prime Square, 5-6-36 Toyosu, Koto-ku, Tokyo 135-0061, Japan
Capital: 310 million yen (as of March 31, 2023)
Representative: Sean M. StackRepresentative Director, Chairman, President, and Chief Executive Officer (CEO)Sales revenue: 1,118.9 billion yen (Term ended March 2023)
History:
1910: Founded as Tobata Foundry Co.
1937: Merged with Hitachi, Ltd.
1956: Established separately as Hitachi Metals Industries, Ltd.
2023: Company separated from the Hitachi Group,and renamed from Hitachi Metals, Ltd. to Proterial, Ltd.

Proterial, Ltd.
Toyosu Prime Square, 5-6-36 Toyosu, Koto-ku, Tokyo 135-0061, Japanwww.proterial.com
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