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Quick Details

  • Standard: AISI, ASTM, DIN, GB
  • Grade: Din 1.2842 ( 90MnCrV8 )
  • Thickness: 3.0mm~
  • Place of Origin: Jiangsu, China (Mainland)
  • Brand Name: Changjiang
  • Model Number: 1.2842 ( 90MnCrV8 )
  • Type: Steel Plate
  • Technique: Hot Rolled
  • Surface Treatment: shot blasted
  • Application: shear blades for paper, industrial knives etc.
  • Special Use: High-strength Steel Plate
  • Width: 300mm approx.
  • Length: Cut-to-length or on request
  • Production process: EAF + LF + VD + ( ESR ) + forged + hot rolled
  • Tight tolerance on thickness: Prime quality
  • Professional sales team: One stop service

Packaging & Delivery

Packaging Details Standard seaworthy packaging.

W.-Nr. 1.2842 ( DIN 90MnCrV8 ) - ASTM O2 high carbon alloy cold work tool steel plates

 

Designations

DINENAISI
90MnCrV81.2842O2

 

Chemical composition ( in weight % )

 CSiMnPSCrV
Min.  %0.850.101.80  0.200.05
Max.  %0.950.402.200.0300.0300.500.20

 

Description

Oil hardenable medium alloyed cold work tool steel, highest dimensional stability during heat treatment,

shallow dept of hardening, good wear resistance and toughness, easy to machine and simple heat treatment,

good cutting ability and edge holding properties, low distortion, low polishability.

 

Applications

Tool steel for universal use, highly stressed plastic moulds, mould inserts for high hardeness and abrasive stress,

blanking and stamping tools for all types cutting sheet metals up to 6 mm thickness, cold forming dies, cutting and

punching tools of all types, shear blades for paper, plastic and metalworking industries, reamers, thread chasers and

cutting tools, pressure pads, guide pins, taps, measuring tools, precision calipers and plug gauges, woodworking tools,

plastic and rubber compression moulds, deep drawing tools, clipping beds and punches, industrial knives, ejector pins,

drills, guide strips, broaches, box grooves, clamping plates.

 

Physical properities

Thermal conductivity W/(m.K)  20°c / 30

Density g/cm 20°c / 7.85

Coefficient of linear thermal expansion

      10¯6°c 20 - 100 20 - 200 20 - 300 20 - 400 20 - 500 20 - 60020 - 700 
 12.1 13.3 13.8 14.3 14.1 14.2 14.6

 

Heat Treatment 

Annealing :  680 - 720 °C

Hardness after annealing :  Max. 220 HB

Stress relieving :  Approx. 650°c

Hot forming :  1050 - 850°c

Hardening :  790 - 820°c

Quenching media :  Oil, Salt bath ( 220 - 250°c ) up to 20 mm thickness

Hardness after quenching :  HRC 63 - 65

Hardness after tempering :

100°c200°c300°c400°c
64 HRC62 HRC57 HRC50 HRC

 

We are looking forward to your enquiries.

Please call +86 151 9025 7143, skype: paul_luhongxiang or send an email to

export @ ahoneststeel dot com

 

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