CARRS P1008

BS EN ISO 4957 - X40Cr14, DIN - 1.2083, AISI - 420

TYPICAL ANALYSIS

C	0.40		Si	0.40
Mn	0.40		Cr	13.00

CHARACTERISTICS
This steel is most suitable for Plastic Moulding Dies where the materials used have a corrosive effect on the mould and where greater wear resistance is required than that available with conventional Stainless Steels.
Colour Code: Pale Blue.

Where a high degree of integrity and polish are required Carrs P1008 ESR quality is recommended.
Colour code: Brown/Black

TYPICAL APPLICATIONS

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Injection moulding

•

Blow moulding

HEAT TREATMENT graph

FORGING
Commence at 1050^oC. Re-heat as necessary to avoid working below 850^oC.

ANNEALING
Heat slowly and uniformly to 780^oC. Cool in still air.

STRESS RELIEVING
Heat uniformly to 650^oC max. Allow to equalise and remove from furnace. Cool in still air.

HARDENING & TEMPERING
Thoroughly warm Tools or Components before charging

HEATING & SOAKING
Heat slowly and uniformly to 1020^oC. Allow to equalise and soak for a few minutes.

QUENCHING
Quench in salt at 520^oC. Where a slightly lower hardness is acceptable, this steel may be air-cooled. An oil quench will provide a higher hardness but should be used only as a last resort and never where there are sudden changes in section which could lead to cracking.

TEMPERING
A first temper at 180^oC should be given soaking at temperature for 1 hour per inch of ruling section or 2 hours whichever is longer followed by cooling to room temperature. A second temper should be given according to the tempering graph. Tempering above 400^oC should be avoided as some reduction of toughness and corrosion resistance may result.

This steel should respond to hardening by the Vacuum furnace, gas quench process.