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低合金钢及含碳不锈钢

一,低合金钢的主要牌号及规格

                                                                                                                              PSD refer to Malvern Mastersize 3000 Analysis

Alloy

Type

D50μm

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

                                                                                                          *8620的烧结形貌, 烧结密度7.62g/cm3

 

二、马氏体不锈钢/双相钢/铁素体含碳不锈钢

                                                                                                                         PSD refer to Malvern Mastersize 3000 Analysis

Alloy

Type

D50μm

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 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.

 

440C 烧结态,烧结密度:7.73g/cm3 ,晶粒度>7级                                                                            440C 热处理后,晶粒度>7级