Stellite® Bill 20PMH ⚈ Accuracy and Industrial Bill

The cobalt-rich Stellite® material is distinguished by its excellent wear resistance and its ability to withstand high temperatures. Ideal in extreme environments, these balls are specially designed for applications where longevity and reliability are paramount. As a specialist for over 40 years, Marteau- Lemarie offers these logs in stock in France for quick delivery.

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Chemical composition of the 20PMH stellite® ball

Element	type	C	Mn	Cr	Neither	Mo	Co	W	Sn	Fe
%	Stellite 20PMH	2,80-3,00	0,20-0,40	33,00-36,00	2.50 max	max. 0.50	35,10-40,50	17,00-19,00	1.00 max	2.50 max

Physical characteristics of the 20PMH stellite® ball

Ownership	Value	Unit
Density	8.6	g/cm3
Young Module	240	GPA
Thermal expansion coefficient	12.7 (DT=0-100°C)	× 10−6 /°C
Thermal conductivity	15.2	W/m·K
Electrical resistivity	3750	× 10 - 9 D·m
Specific heat	440	J/kg·K
Relative magnetic permeability	max 1,200	—
Magnetic behaviour	Paramagnetic	—

Hardness and mechanical resistance of 20PMH stellite® ball

Ownership	Value	Unit
Hardness	56-63	HRC
Tensile failure load	550-650	MPa
Tensile failure load	80-94	psix10^3
Exercise temperatures	0/1000	° C
Exercise temperatures	32/1832	°F

Diameters and grades available for 20PMH stellite® ball

Parameter	Value
Minimum diameter	9.5 mm — 3/8′′′
Maximum diameter	75 mm — 3′′
Grades available	G25-40-60-100
Precision standards	ISO 3290 / AFBMA

Corrosion resistance of 20PMH stellite® ball

Good corrosion resistance in contact with oxidizing agents (except reducing acids), nitric, phosphoric and formic acids under non-extreme conditions of concentration and temperature, sulphuric acid at room temperature.