Skip to main content
JKZ Bučovice, a.s. logo
JKZ Bučovice, a.s. logo
  • Steel Catalog
  • Services and technologies
  • About us
  • Career
  • News
  • Download
  • Contact
  • Inquiry
  • CS
  • EN
  • DE
  • PL
  • SI
  • HU

You are here:

  1. Home
  2. Steel Catalog
  3. Tool steels
  4. Production of moulds
  5. SUPERPLAST 300 ®

SUPERPLAST 300 ®

  • Production of moulds
  • Special steels
  • Superplast
CZK 0

Characteristics

The steel is developed for the purpose of more qualitative classical qualities of steels – W.Nr. 1.2378, 12311 and 1.2312. Due to the highly clear structure it reaches excellent workability (of about 15% better than by 1.2738), polishability, corrodibility and it increases the quality of surface and mechanical properties of produced injection and pressing parts. Higher heat conductivity SP300® (P) increases the productivity of the tool. Easy weldability and easier repairs and alterations of the mold design.

Suitability

Heat-treated steel to the firmness from 290 to 320 HB is used for big molds for plastics injection and big frames of molds.

Chemical composition of steel Superplast 300®

Steel gradeChemical composition in %Hardness in state
soft-annealedheat-treated
CMnSiCrWMoVNi maxCoP max.S max.HB max.HRC min.
Superplast 300®0,23 až 0,271,00 až 1,500,05 až 0,201,00 až 2,50 0,30 až 0,60 1,00 0,0200,020  

Product range

Blocks: deameters up to 950 mm x 2.000 mm
We will deliver any semi-finished products from the above mentioned dimensions. Other dimensions, except for given stock supplies, have to be consulted with us.

Back

Tool steels

Special steels

Toolox

Superplast

Alloy and non-alloy steels

Submit a request

Steel catalog

  • Tool steels
  • Special steels
  • Toolox
  • Superplast
  • Alloy and non-alloy steels

Technology

  • Cutting
  • CNC machining
  • Flame cutting
  • Annealing
  • Quality
  • Logistics

JKZ Bučovice

  • About us
  • Career
  • Sponsorship
  • Download

Contacts

Ždánská 210
685 01 Bučovice
T: +420 517 306 100
E: jkz@jkz.cz

Other contacts

  • Site Map
  • General Terms and Conditions

Copyright © 2025 JKZ. Created by ERIGO.