A-Series Mold Bases
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DME American Standard Steel Types
Synonymous with mold making are the DME American Standard Steel Types. Our experience in selecting mold steel ensures the cleanliness, durability and machinability appropriate to your application.
Steels for Structural and Holder Block Applications
DME #1 Steel is a medium carbon quality steel with greater tensile strength than typical plain carbon warehouse steels. It machines easily, but is not “sticky”, permitting a faster and smoother cut. International comparisons: DIN 1.1178 (CK 30) and 1.1730 (C 45 W); JIS S 30 CM, S50C, S55C; ISO 683-1 C30E4. DME #2 Steel is a medium alloy steel specified for durability in structural applications. It is supplied pre-heat treated to 28-34 HRC (271-321 Bhn). A high strength steel, it is ideal for cavity and core retainer plates, clamping plates and support plates in molds. International comparisons: DIN 1.2312 (40CrMnMoS 8 6), 1.7218 (25CrMo4) and 1.2331 (41CrMoS4); JIS SCM 430; ISO 683-2 Type 1. DME #7 Steel is a modified AISI 400 series stainless steel for holder block applications. It is supplied pre-heat treated to 32-36 HRC (302-340 Bhn). This stainless steel offers corrosion-resistance and exceptional machinability but cannot be further hardened (see DME #6). For humid environments, corrosive plastics, “clean room” or “100% stainless” applications, it is an ideal choice for all structural mold plates. International comparisons: none. Steels for Cavity & Core Applications DME #3 Steel is a P-20 AISI 4130 type cavity steel. Exceptionally clean, it is pre-heat treated to 28-34 HRC (271-321 Bhn). It provides good machinability, the ability to heat treat to higher hardness, and exceptional polishability. International comparisons: DIN 1.2311 G40CrMnMo7; JIS none; ISO none. DME #5 Steel is an AISI/SAE H-13 type thermal shock resistant, hotwork die steel. Supplied fully annealed (approximately 200 Bhn; 13-20 HRC) for easy machinability, it can be subsequently heat treated to the desired hardness with a minimum of deformation. Mainly used for die cast dies, it is also suitable for plastic molds with exceptional hardness or polishability requirements. DME #5 Steel meets or exceeds the acceptance criteria established by the NADCA as detailed in Technical Digest Number 01-80-01D. International comparisons: DIN 1.2344 (X40CrMoV5-1); JIS SKD 61; ISO 4955 H13. DME #6 Steel is a modified AISI 420 type stainless steel. It is supplied fully annealed to 179-241 Bhn (8-23 HRC), making it readily machinable. Unlike DME #7 steel, DME #6 steel is a cavity-grade material that can be subsequently heat treated to the desired hardness and has excellent polishability. International comparisons: DIN 1.4028 (X30Cr13); JIS SUS 420 J 2; ISO none.
Typical Steel Types Configurations “A” Series Mold Bases are available in over 40 standard sizes, 7-7/8 x 7-7/8 to 23-3/4 x 35-1/2. Each size offers a wide variety of standard cavity plate thickness combinations, plus your choice of DME No. 1, No. 2, No. 3 or No. 7 steel.
No. 1 Steel Assembly
No. 2 Steel Assembly
NO. 2 STEEL NO. 2 STEEL
NO. 1 STEEL NO. 1 STEEL
NO. 2 STEEL NO. 2 STEEL
NO. 1 STEEL NO. 1 STEEL
No. 3 Steel Assembly
No. 7 Steel Assembly
NO. 2 STEEL NO. 3 STEEL
NO. 7 STEEL NO. 7 STEEL
NO. 2 STEEL NO. 3 STEEL
NO. 7 STEEL NO. 7 STEEL
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