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The Proterial Group boasts a treasure trove of global “only one, number one” products with applications spanning a variety of fields. This achievement is the result of well- coordinated efforts in our production, development and marketing sections to ascertain the requirements of society at large and work in unison with customers.

The Proterial Group boasts a treasure trove of global “only one, number one” products with applications spanning a variety of fields. This achievement is the result of well- coordinated efforts in our production, development and marketing sections to ascertain the requirements of society at large and work in unison with customers.

The Proterial Group boasts a treasure trove of global “only one, number one” products with applications spanning a variety of fields. This achievement is the result of well- coordinated efforts in our production, development and marketing sections to ascertain the requirements of society at large and work in unison with customers.

The Proterial Group boasts a treasure trove of global “only one, number one” products with applications spanning a variety of fields. This achievement is the result of well- coordinated efforts in our production, development and marketing sections to ascertain the requirements of society at large and work in unison with customers.

The Proterial Group boasts a treasure trove of global “only one, number one” products with applications spanning a variety of fields. This achievement is the result of well- coordinated efforts in our production, development and marketing sections to ascertain the requirements of society at large and work in unison with customers.

High Corrosion Resistance Nickel-based Alloy

DESCRIPTION

Metal additive manufacturing material ADMUSTER®

Designed for additive manufacturing, ADMUSTER® C21P with high corrosion resistance is a powder material based on MAT21®, a nickel-based alloy with high corrosion resistance for wrought product, developed at Hitachi Metals’ Okegawa Works. It currently has one of the highest PRE*2 numbers of all our metal additive manufacturing materials. Additive-manufactured products made from ADMUSTER® C21P have been confirmed to have the same corrosion resistance as MAT21® wrought material*3 along with excellent strength and hardness (see Tables 1 and 2). Test results show that compared to SUS316L, a stainless steel with relatively high corrosion resistance, as-built C21P (a just additive-manufactured test specimen) has one hundredth or less the corrosion speed (100 times or more the corrosion resistance).

Since chemical plants and semiconductor manufacturing plants use highly corrosive fluid, the corrosion resistance of the parts used for the equipment is important. Using parts with higher corrosion resistance makes it possible to improve reliability, resulting in reduced operation halt risk and lower frequency of part exchange. Furthermore, additive manufacturing eliminates die preparation and assembly processes and shortens the lead time for small lot production. Since these characteristics not only enable lower costs but also lead to the reduction of CO2 generated in the part production processes, customer expectations are rising, and customers have already started mass production of metal additive manufacturing parts made of ADMUSTER® C21P.

Hitachi Metals will contribute to the solution of customer issues and CO2 reduction by strengthening and expanding the lineup of the ADMUSTER® series into various fields requiring heat resistance, wear resistance, corrosion resistance, and high functionality.

Table 1. Comparison of corrosion speeds of ADMUSTER® C21P additive manufacturing material and various forging and rolling materials in various acid aqueous solutions*4
  C21P
as built		 C21P
solution-treated		 C21P
aging-treated*5		 MAT21®
wrought		 Alloy 22
wrought		 SUS316L
wrought
PRE*2 82 70 26
1% HCl boiling 0.01 - - 0.01 0.13 24
2% HCl boiling 0.01 0.01 0.01 0.05 1.72 51.2
5% HCl boiling 1.6 - - 1.15 7.95 199.3
30% HF room temp. 0.06 - - 0.08 - -
10% H2SO4 boiling 0.03 0.03 0.02 0.04 0.23 69.4
Table 2: Mechanical properties of ADMUSTER® C21P additive manufacturing material and various forging and rolling materials*4
Item C21P
as built		 C21P
solution-treated		 C21P
aging-treated*5		 MAT21®
wrought
0.2% proof stress, MPa 623-758 416-424 952 381
Tensile strength, MPa 885-1030 890-905 1440 812
Hardness, HV10 288-323 206-209 428 180-200

*1  Our internal test data

*2  PRE: Pitting Resistance Equivalent number, an index of corrosion resistance. PRE = Cr + 3.3 (Mo + W/2) + 16N

*3  MAT21® forging and rolling material: Forged or rolled material made of high corrosion-resistant nickel-based alloy MAT21®

*4  The values are representative and not guaranteed.

*5  Aging treatment (Temp.; about 600℃, Duration; >30hour)

Main Products in the ADMUSTER® Series of Metal Additive Manufacturing Materials

REVENUES
1000 B
OVERSEAS SALES RATIO
0 %
EMPLOYEES
26300

LEADING SUSTAINABILITY BY HIGH PERFORMANCE