MTD 1 is a 4140 plate steel modified with slightly higher carbon and a vanadium addition. Vanadium improves graining refinement and, coupled with the higher carbon, promotes hardness and wear resistance. ArcelorMittal USA MTD steels comprise a family of pre-hardened alloy plate steels developed for a variety of mold, tool, and die applications. This datasheet provides information on composition. It also includes information on forming, machining, and joining. Filing Code: SA-793. Producer or source: ArcelorMittal USA, Plate.

Böhler (or Boehler) M261 Extra is a precipitation hardening steel grade for plastic molds with good machinability in the precipitation hardened condition. It is used in the processing of plastics by offering high compressive stress and high wear resistance. This datasheet provides information on composition, physical properties, hardness, and elasticity. It also includes information on heat treating and machining. Filing Code: TS-732. Producer or source: Böhler Edelstahl GmbH & Company KG. See also Alloy Digest TS-736, September 2016.

Böhler (or Boehler) M461 Extra is a precipitation hardening steel grade for plastic molds with good machinability in the precipitation hardened condition. This datasheet provides information on composition, physical properties, and elasticity. It also includes information on machining. Filing Code: TS-730. Producer or source: Böhler Edelstahl GmbH & Company KG.

MoldMAX XL is a high-strength copper mold alloy with good conductivity. The alloy contains no beryllium and is available in sections as large as 305 mm (12 in.) thick. The alloy’s hardness is comparable to AISI P-20 tool steel, but its thermal conductivity is two to three times higher. This alloy is used as injection mold cores and cavities. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on corrosion andwear resistance, and surface qualities as well as forming, machining, and joining. Filing Code: Cu-826. Producer or source: Materion Brush Performance Alloys.

DIMO 2738 is a prehardened CrMnNiMo alloyed tool steel for construction of plastic molds. This datasheet provides information on composition, physical properties, and hardness. It also includes information on forming and heat treating. Filing Code: TS-720. Producer or source: AG der Dillinger Hüttenwerke.

MoldMax HH is a part of a family of copper based alloys that are trade named MoldMax and PROtherm. These alloys are processed to provide an optimal combination of hardness and thermal conductivity and are specified in a variety of injection and blow mold tooling applications. The HH grade is the premier copper mold alloy supplied by the producer. This alloy has hardness and strength comparable with standard tool steels but its thermal conductivity is at four to six times higher. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on corrosion andwear resistance, and surface qualities as well as forming, machining, and joining. Filing Code: Cu-823. Producer or source: Materion Brush Performance Alloys.

Formadur 2316 is a plastic mold steel (modified Type 420) with good polishability. It is used for molds for processing plastics with corrosive reactions. This datasheet provides information on composition, physical properties, and hardness. It also includes information on heat treating. Filing Code: TS-710. Producer or source: Schmolz + Bickenbach USA Inc..

Formadur 2312 is a plastic mold steel with good polishability. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on heat treating, machining, and joining. Filing Code: TS-707. Producer or source: Schmolz + Bickenbach USA Inc..

CorroPlast is a hardened 400 series stainless steel used as a holder or base for plastic molds. This datasheet provides information on composition, physical properties, and tensile properties. It also includes information on heat treating and machining. Filing Code: SS-1123. Producer or source: Deutsche Edelstahlwerke GmbH.

CorroPlast is a hardened 400 series stainless steel used as a holder a material for plastic molds. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on heat treating, machining, and joining. Filing Code: SS-1120. Producer or source: Deutsche Edelstahlwerke GmbH.

Formadur 320 is an innovative tool steel for plastic molds. This high-tech steel has been specially developed as a derivative of Formadur 2311 and Formadur 2738 to fulfill increased demands. Deliberate modifications of the grade’s components as well as additional smelting and secondary metallurgy provide Formadur 320 with its outstanding properties. This datasheet provides information on composition, physical properties, and hardness. It also includes information on heat treating. Filing Code: TS-701. Producer or source: Deutsche Edelstahlwerke GmbH.

DELORO 15, 21, 22, and 25 are prealloyed, gas-atomized, nickel-base powders for repair of glass-forming molds. This datasheet provides information on composition, physical properties, and hardness. It also includes information on powder metal forms. Filing Code: Ni-689. Producer or source: Stellite Coatings.

DH 21 is a hot work die steel with excellent heat check resistance, excellent mechanical properties at high temperatures, excellent temper resistance, excellent oxidation resistance, and excellent nitriding properties. The alloy was developed to extend the life of aluminum die cast molds. This datasheet provides information on composition, physical properties, and hardness. It also includes information on heat treating. Filing Code: TS-695. Producer or source: International Mold Steel Inc.

Kapstar is through-hardened steel of uniform hardness for molds and dies. This datasheet provides information on composition, physical properties, and elasticity. It also includes information on heat treating and joining. Filing Code: TS-684. Producer or source: Crucible Service Centers Divisional Headquarters.

FINKL LR, HB, and HI-HARD P-20 are part of a series of mold materials offering a range of properties for various molding applications. The increasing success and popularity of plastic products over the years has led to more sophisticated tooling and constantly evolving resin. These forces have acted together to place increased demands on mold materials. This datasheet provides information on composition. It also includes information on machining. Filing Code: TS-683. Producer or source: A. Finkl & Sons Company.

Crusteel EN.30.B has a combination of toughness, through hardening, and wear resistance for applications in plastic molds. This datasheet provides information on composition and hardness. It also includes information on forming, heat treating, and joining. Filing Code: TS-634. Producer or source: Crucible Service Centers.

DRX is similar to AISI S7. It has a higher carbon content and is alloyed with 3.25% Cr and 1.4% Mo for emphasis on good wear resistance. DRX is typically used for inserts or smaller molds in applications requiring high production volume, or molds subjected to high-wear condition. It is supplied in the annealed condition and typically heat treated to a hardness of 45 HRC or greater after machining. This datasheet provides information on composition and hardness. It also includes information on high temperature performance as well as forming and heat treating. Filing Code: TS-624. Producer or source: A. Finkl & Sons Company.

Crucible S7 XL is a double-refined high-purity grade of S7 tool steel (see Alloy Digest TS-543, July 1996) designed specifically for ease of wire electrical discharge machining (EDM) operations, improved consistency in texturizing of plastic injection molds, and superior shock resistance compared to conventional S7. Typical applications include plastic injection molds, punches and dies by wire EDM, and heavy impact tools. This datasheet provides information on composition, physical properties, hardness, and elasticity as well as fracture toughness. It also includes information on wear resistance as well as heat treating, machining, joining, and surface treatment. Filing Code: TS-562. Producer or source: Crucible Service Centers. Originally published November 1998, revised 2005.

Polmax was developed to be both highly polishable and corrosion resistant for extreme surface finishes such as in lens molds. Polmax has excellent polishability, good corrosion resistance, good wear resistance, good machinability, and good stability in hardening. It is used for applications where extreme surface finishes are required, such as lens molds, molds for compact discs and memory discs, and molds for med-ical applications. This datasheet provides information on composition, physical properties, microstructure, elasticity, and tensile properties. It also includes information on corrosion resistance and surface qualities as well as heat treating and surface treatment. Filing Code: SS-918. Producer or source: Böhler-Uddeholm North America.

Crucible HiStar 40 is a prehardened mold steel having a hardness of 37-41 HRC and used for plastic or rubber molds. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on wear resistance as well as heat treating, machining, and joining. Filing Code: TS-609. Producer or source: Crucible Service Centers Divisional Headquarters.