Low Alloys and carbon Contented Stainless Steel MIM Powders

Specification of the main low alloy steels

Alloy	Type	D50，μm	Typical D90 μm	Shrinking ratio	Tap density, g/cm3	Typical Oxygen content,ppm
4605/8620/4140/8740/Fe4Ni/Fe8Ni…	A	7~9	<21	1.17~1.19	7.6~7.70	≤3500
	B	8~10	<24	1.17~1.19		≤3500

* Sintering carton loss usually at the level of 0.15wt% for the low alloy powder materials

 

                                                                              Feature of sintered 8620 with a density of 7.62g/cm³

 

Specification of the main carbon contented stainless steel alloys

 

Alloy	D50，μm	Typical D90 μm	Shrinking ratio	Typical Oxygen content,ppm	Tap density, g/cm3	Typical Oxygen content,ppm
410/420/440A/440C	7~9	≤21	1.165~1.175	≤4500	7.60~7.75	Able to reach grade 7 or higher
HK30						/
SKD11						/

• Sintering carbon loss usually at the level of 0.15~0.25wt% for these alloy powder materials.
• Sintered surface is very smooth by using HJ’s MIM powder material design.
• With very fine and uniform crystal structure, sintered grain size can reach or higher than grade 7.

 

As sintered 440C with a density of 7.73g/cm³ and grain size>grade 7                                                                   440C after heat-treatment and grain size>grade 7