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Steel variants

STEEL

Product		Material	Usual name	State at delivery Characteristics	For which tools ?	For which plastics ?
General use steel
		St52-3	S355	Rm = 490 - 630 N/mm² Strutuctural steel Low carbon content Suitable for welding Suitable for torch-cut	Tool base plates Special machine frame Welded assembly
Unalloyed tool steel
		1.1730	C45	Normalised max. 223 HB Surface layer quench hardenable up to 55 HRc	Structure parts Mould frames and tools under light stress. Blow moulds. Base plates
Hardened and tempered steels for moulds
		1.2311	40CrMnMo7	Hardened and tempered Rm = 950 - 1100 N/mm² HB 280 - 325 Mould steels, economical machining, good polishing, graining and chromium plating capability. Used for thicknesses below 400 mm. Suitable for nitriding: surface layer (0.3 mm) 600 HV/3 Kg minimum	Cores and cavities for compression and injection moulding up to 400 mm thick	Thermoplastics, large moulded pieces in ABS, thermoset resins
		1.2738	40CrMnNiMo8.6.4	Tempered Rm = 950 - 1100 N/mm² HB 280 - 325 Tool steel for the construction of moulds for plastics, particularly for large-scale projects. - appropriate for mirror polishing and embossable - good weldability - good processibility - resistance up to 1200 N/mm2 - appropriate for nitriding, hard chromium plating	Large-scale tools for moulds for high stress plastic injection, for stand-off, for dashboards, seats, household bins, bottle racks, television selves, etc.
		1.2312	40CrMnMoS8-6	Hardened and tempered Rm = 950 - 1100 N/mm² HB 280 - 325 Mould steel with excellent machinability. Not suitable for polishing, graining and hard chromium plating. Steel suitable for nitriding, with surface hardness (0.3 mm) 600 HV/3 Kg minimum	Core parts. Compression and injection moulding.	Thermoset resins in compression moulding. Thermoplastics ABS, SMC.
		1.2714	56NiCrMoV7	Hardened and tempered Rm = 1190 - 1390 N/mm² HB 355 - 413 Mould steel. Resistant to hot flow. High impact strength. Grainable. Suitable for mirror polishing and hard chromium plating. High degree of purity. Steel suitable for nitriding with surface hardeness (0.3 mm) 600 HV/3 Kg minimum.	Compression and injection moulding with high mechanical and thermal stress. Particular quality requirements such as mirror polishing.
		1.2714+S	55NiCrMoVS7	Hardened and tempered Rm = 1190 - 1390 N/mm² HB 355 - 413 Mould steel. Resistant to hot flow. High impact strength.	Compression and injection moulding with high mechanical and thermal stress.
Tool steels
		1.2343 1.2343C	X38CrMoV5-1 X36CrMoV5	Annealing max. 229 HB E0117.222N CNOMO Hot working steel, wear resistant. Hardness 50 HRc after hardening and tempering. Good nitriding suitability. Also usable for large dimensions. High degree of purity.	Mould inserts. Moulds for high stress plastic injection.	Thermoset resins. Compound materials. Thermoplastics.
		1.2379	X155CrVmo12-1	Annealing max. 255 HB Cold working steel. High wear resistance. Hardness 60-62 HRc. Suitable for inserts. Nitriding possible after special heat treatment.	Mould inserts. Moulds for high stress plastic injection.
		1.2767	X45NiCrMo4	Annealing max. 285 HB Self-hardening steel with great dimensional stability. Very good tenacity. Hardness 45-50 HRc.	Mould inserts. Moulds for high stress plastic injection.
Stainless corrosion resistant steels (martensitic and austenitic stainless steels)
		1.2316	X36CrMo17	Hardened and tempered Rm = 950 - 1050 N/mm² HB 269 - 311 Steel for moulds with excellent corrosion resistance. Suitable for polishing. Total resistance : 900 - 1050 N/mm²	Mould inserts. Large plastic injection moulds.	Corrosive plastics. Plastics with acid precipitation. Thermoplastics, PVC.
		1.2085	X33CrS16	Hardened and tempered Rm = 950 - 1100 N/mm² HB 280 - 330 Steel for moulds with excellent corrosion resistance.
		1.2099		Rm = 980 - 1100 N/mm² HB 290 - 332 Steel for moulds with excellent corrosion resistance.
		1.4307 1.4404	X2CrNi18-9 X2CrNiMo17-13-2	Max. 215 HB Low carbon, great resistance to intergranular corrosion, good weldability, non magnetic. Max. 215 HB Very low carbon, great resistance to intergranular corrosion and to corrosion in a chloride and marine medium. Good weldability, non magnetic.