Contact

Tom Ott
Phone:
+1-724-512-0330

Forms

Documents

Sales Flyer Equotip 3 (pdf, 426 kb)
Sales Flyer Testblock (pdf, 827 kb)
Application Note Helix (pdf, 331 kb)
Application Voith Siemens (pdf, 920 kb)
Application Hydro Aluminium (pdf, 119 kb)
Application Note Mercedes (pdf, 422 kb)
Application Oxford University 1 (pdf, 869 kb)
Application Oxford University 2 (pdf, 674 kb)
Application Oxford University 3 (pdf, 862 kb)
Application ME Elecmetal (pdf, 648 kb)
Application Larsen Toubro (pdf, 695 kb)
Application Note Mont Blanc Express (pdf, 632 kb)
Application Note Fire Damage Assessment (pdf, 624 kb)
Application Blue Light Industry (pdf, 379 kb)
Application Emirates Steel (pdf, 323 kb)
Application Note Tecsup (pdf, 894 kb)
Using Equotip Support Rings (pdf, 583 kb)

Products

Hardness Conversion – Measurement Range

The hardness conversion is material specific, caused by the fact that there is no clear physical relationship between the various hardness test methods. Care must be taken to select the proper conversion table to be used.

The Equotip 3, which operates according to the Leeb principle invented by Proceq, offers hardness conversion to all common scales for a number of materials. In addition, the option for a custom hardness conversion for uncommon alloys is implemented conveniently permitting the further tuning of the conversion to also cover special materials. Already existing quality management systems which involve traditional hardness measurements can therefore benefit from the Equotip 3 by means of conversion functions.

Fields of application		D/DC	DL	S	E	G	C
Steel and cast steel	HV	81-955	80-950	101-964	84-1211		81-1012
	HB	81-654	81-646	101-640	83-686	90-646	81-694
	HRB	38-100	37-100			48-100
	HRC	20-68	21-68	22-70	20-72		20-70
	HRA			61-88	61-88
	HS	30-99	31-97	28-104	29-103		30-102
	σ1	275-2194	275-2297	340-2194	283-2195	305-2194	275-2194
	σ2	616-1480	614-1485	615-1480	616-1479		615-1479
	σ3	449-847	449-849	450-846	448-849		450-846
Cold work tool steel	HV	80-900	80-905	104-924	82-1009		98-942
Cold work tool steel	HRC	21-67	21-67	22-68	23-70		20-67
Stainless steel	HV	85-802		119-934	88-668
	HB	85-655		105-656	87-661
	HRB	46-102		70-104	49-102
	HRC	20-62		21-64	20-64
Cast iron lamellar graphite GG	HB	90-664				92-326
	HV	90-698
	HRC	21-59
Cast iron, nodular graphite GG	HB	95-686				127-364
	HV	96-724
	HRC	21-60
Cast aluminium alloys	HB	19-164	20-187	20-184	23-176	19-168	21-167
	HV	22-193	21-191	22-196	22-198
	HRC	24-85	24-85			24-86	23-85
Copper/ zinc-alloys (brass)	HB	40-173
Copper/ zinc-alloys (brass)	HRB	14-95
CuAI/ CuSn-alloys (bronze)	HB	60-290
Wrought copper alloys, low alloyed	HB	45-315

Vickers: HV	Shore: HS
Brinell: HB	Tensile Strength Rm N/mm²: σ1, σ2, σ3
Rockwell: HRB, HRC, HRA

Please feel free to contact Proceq for more information on hardness conversion.