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40CrMnMo7 Steel


40CrMnMo7 steel suppliers, carrying throughout the India. Kohli Adamant are stockholders and suppliers of round, flat, bowl and block. 40CrMnMo7 is frequently supplied accustomed and tempered. This casting gives accomplished chafe attrition but if best apparent acerbity is adapted for compression moulding artificial dies or agnate tools, the steel can be case accustomed or nitrided. This steel gives an accomplished able accomplishment and is one of the a lot of broadly accustomed blueprint for apparatus cut artificial moulds.

We acceptable consign enquiries for apparatus steel. Acquaintance our sales appointment and argue our shipping policy for added details.

Form of Supply

Kohli Iron are  suppliers of 40CrMnMo7 steel round bar, flat bar, plate and block. Diameters can be sawn to your required lengths as one offs or multiple pieces. Rectangular pieces can be sawn to your specific sizes. Ground bar can be supplied, providing a quality precision ground bar to close tolerances.

Contact our experienced sales team who will assist you with your 40CrMnMo7 steel enquiry.

  • Plate
  • Flat
  • Diameter

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Applications

A popular grade used in the production of plastic moulds. Applications include die holders, casting dies, backers, bolsters and injection moulds. With its high tensile characteristics it is also suitable for producing shafts, wear strips and rails.


Carbon 0.35-0.45% Chromium 1.80-2.10%
Manganese 1.30-1.60% Molybdenum 0.15-0.25%
Sulphur 0.03% max Silicon 0.20-0.40%
Phosphorous 0.03% max

Heat slowly, allowing sufficient time for it to become heated through. Forge at 1050°C. Do not forge below 930°C reheating if necessary. Cool very slowly after forging.


Heat uniformly to 770-790°C.  Soak well, cool slowly in a furnace.


If components are heavily machined, we recommend stress relieving just before finish machining in order to relieve machining strains. Heat to 460-500°C. Soak well and allow air cool.


Heat the component uniformly to 820-840°C until heated through. Quench in oil.


Heat uniformly and soak at the tempering temperature for at least one hour per 25mm of section. Air cool.

Temperature [°C] 100 200 300 400 500 600
Hardness [HRc] 51 50 48 46 42 36
Tensile [N/mm²] 1730 1670 1570 1480 1330 1140
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