SLD-i Advanced Cold Work Tool Steel

SLD-i

Advanced Cold Work Tool Steel


Another exclusive Hitachi metal, SLD-i is an advanced cold work tool steel improving upon AISI D2 steel. Through extensive research and development, Hitachi’s expert metallurgist team brings a superior product to the tool steel array.

Product Summary

SLD-i’s unique composition features small, dense, homogenous carbide distribution, which provide it with the following unique features:

  • Small and isotropic heat treatment deformation
  • Good galling and wear resistance characteristics
  • Higher hardness ratings than that of D2/1.2379

In addition, SLD-i offers minimal dimensional change under heat, as well as shorter lead times and improved production times over standard D2 steel. When the project calls for only the best in cold work tool steel, look no further than SLD-i.


 

DAC-Magic

DAC-Magic

Advanced Die Casting


This die steel is used in manufacturing highly precise castings in large volumes quickly.
It combines the ability to withstand high temperatures during heating and quenching in the heat treatment cycle with toughness, and minimal cracking in cooling channels contributes to improvements that mean longer-lasting dies.

Features

  • High strength at elevated temperature and excellent heat crack resistance
  • High toughness prevents gross crack of die
  • Improved stress corrosion cracking resistance reduces crack problem from cooling channel
  • Better machinability than conventional SKD61 improved steel (high toughness type) possible to reduce manufacturing time and total cost

Heat Crack Resistance

Compared with conventional steels, DAC-MAGIC contributes to longer die life due to better heat crack resistance.

 

8620

8620 Alloy Steel


A case-hardening alloy plate that is used where high strength and excellent wear characteristics are needed, and where a tough ductile core is required. Relatively low distortion and growth during heat treatment and safe hardening over a wide range are advantages of this grade. Calcium treated for better machinability and tool life.

Analysis:

C CO CR MN MO NI P S SI V W
0.18 - 0.23 0.40 - 0.600.70 - 0.900.15 - 0.250.40 - 0.700.04 Max.0.04 Max.0.15 - 0.30

Size Availability:

Flats • Rounds

Designations:

AISI 8620 Alloy Steel-US
ASTM A29-US
ASTM A322-US
ASTM A331-US
ASTM A506-US
ASTM A507-US
ASTM A513-US
ASTM A519-US
ASTM A646 (8620-4)-US
ASTM A752-US
A829-US
MIL S-8690-US
SAE J1397-US
SAE J404-US
UNS G86200-US

Data is typical and should not be construed as actual values for any category.
Applications and technical information require engineers and tool designers to exercise independent judgement.

D-2 Air Hardening Tool Steel


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