Saratherm SAAR-HARTMETALL USA LLC

Structural components which are frequently made of nickel-based PM-Superalloys are used in a temperature range between 700°C and 950°C due to their high mechanical, chemical and thermal load capacity.

The outstanding resistance to oxidation and corrosion as well as the higher creep rupture strength and the higher creep limit are definite advantages over with other materials.

Saratherm

The superiority of high temperature resistant PM-material over forged superalloys is caused by the larger content by volume of the -phase, the finer structure and the ensuing better mechanical properties (especially the increased creep rupture strength and the increased creep limit).

Typical applications for high temperature resistant PM-Superalloys are high performance engine parts, high temperature resistant machine parts of the chemical and petrochemical industry, hot working tools in the diamond grinding disk- and glass industry, etc.

PM-Superalloys have a definite advantage over Stellitess as well as cast and forged high temperature resistant material because of their higher resistance at temperatures above 700°C. That´ s why they are perfectly suitable as high temperature resistant engineering material.

Alloy	Content						Tensile strength at elevated Temp [N/mm2]					Grain size [µm]
	Cr	Co	Mo	Al	Ti	Ni	20°C	535°C	650°C	760°C	870°C
Saratherm 2	15	18	5	4	3,5	Rest	1500	1420	1400	1070	700	< 63 ; < 212
Saratherm 80	20	2	/	1,6	2		1200	1110	1030	790	400	< 400
Saratherm 90	20	18	/	1,5	2,5		1250	1090	980	740	430	< 112 ; 112 - 350

Overview Creep Rupture Strength

Alloy	Creep rupture strength / [N/mm2]
	Time under load [h]	650°C	760°C	870°C
Saratherm 2	100	750	560	310
Saratherm 2	1000	700	440	220
Saratherm 80	100	560	290	/
Saratherm 80	1000	460	220	/
Saratherm 90	100	560	390	150
Saratherm 90	1000	460	280	75