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ASSAB 718 Steel


As pre-hardened mirror acid-proof plastic mold steel, 718 steel is the typical steel grade of the general-purpose plastic mold steel most widely used, with simple processing technology, moderate price and large need. It is often referred to as "advanced" plastic mold steel, and newly developed steel grades often use it as a typical comparison.



Chemical properties of ASSAB 718 Steel

Steel Grade

C

Si

Mn

P

S

Cr

Mo

Ni

ASSAB 718

0.28-0.40

0.20-0.80

0.60-1.00

≤0.030

≤0.030

1.40-2.00

0.30-0.55

0.80~1.20



Features of ASSAB 718 Steel

  • The steel is pre-hardened, with uniform material and high cleanliness.

  • It has excellent polishing performance and photo-engraving performance.

  • Good processability, such as electrical processing performance and mold texturing processing performance.

  • The steel has high hardenability, wear resistance, uniform hardness distribution.

  • Pre-hardened steel can be used in the die cavity without quenching. The flange can be flame hardened to increase the hardness to 52HRC.



Application of ASSAB 718 Steel

  • Thermoplastic injection molds, extrusion molds.

  • Thermoplastic blow molds.

  • Main components of heavy-duty molds.

  • Cold-formed structural parts.

  • Commonly used in the manufacture of TV cabinet, washing machines, refrigerator inner shells, buckets, etc.



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