Sohryu Sangyo Co., Ltd.

Introduction of Main Products

Carbonyl Iron【Sintez-CIP】

Producer

Product introduction

Carbonyl iron is indispensable in production process of industrial synthetic diamonds (under high temperature and high pressure) to produce high-quality diamonds. The homogeneity and high chemical purity of Sintez-CIP products are important parameters in making diamond processes stable.
The company offers five different grades, and has a wide range of products to meet the needs of customers.

Characteristics

Grade list of Sintez-CIP carbonyl iron

Carbonyl iron grades for diamond tools

Sintez-CIP carbonyl iron is environmentally friendly and is also used as a substitute for cobalt. The iron is suitable for both cold sintering and hot pressing, and also can be for free sintering.
Because a wide range of carbonyl iron is available, the hardness of a tool can be adjusted according to your requirements.

↓Typical Properties　Grade→

BK

BK-3

BK-G

BC-2

BM-1

HM

FeP-2

NiP

Fe(％)

≥98.5

≥99.5

≥99.5

≥99.5

Balance

Balance

Balance

-

Ca(％)

0.02-0.1

0.02-0.1

≤0.05

0.02-0.1

0.02-0.1

0.6-1.2

0.1-0.7

-

N(％)

≤0.02

≤0.01

≤0.02

≤0.02

≤0.02

≤0.9

≤0.2

≤0.01

Oxygen(％)

≤0.3

≤0.3

≤0.4

≤0.3

≤0.5

≤0.4

≤1.0

≤1.0

SiO2(％)

-

-

-

-

-

-

-

-

Grain size distribution

d10(μｍ)

≤4.5

3-4

1-3

≤3.5

≤2.5

≤2.5

≤3.5

-

d50(μｍ)

≤9

6-8

4-8

≤7

≤4.5

≤4.5

≤6.5

≤17

d90(μｍ)

12-25

13-25

10-18

8-12

≤6

4-8

≤18

-

Tap density (g/㎤)

-

3.1-3.7

-

-

-

-

-

-

Real density (g/㎤)

-

≥7.4

-

-

7.4-7.7

-

-

-

Nickel(％)

-

-

-

-

-

-

-

Balance

P(％)

-

-

-

-

-

-

≤10

9-11
Carbonyl iron grades for metal injection molding

Metallic parts manufactured by MIM (metal injection molding) technique with Sintez-CIP carbonyl iron can have a complicated shape and strong mechanical properties. Products made by MIM technique have mechanical and physical properties equal to those of products made by a conventional metalworking process.

↓Typical Properties　Grade→

HK-1

HC

HC-C1

HC-2

HM-C

BC-1

BC-C1

Fe(％)

≥97

≥97

≥97.5

≥97.5

≥97

≥99

≥99.5

Ca(％)

0.6-1.2

0.6-1.2

0.7-0.9

0.75-0.86

0.6-0.9

≤0.05

≤0.03

N(％)

≤0.9

≤0.9

0.5-0.9

≤0.9

≤0.9

≤0.1

≤0.01

Oxygen(％)

≤0.4

≤0.4

≤0.9

0.15-0.3

0.4-0.7

≤0.3

0.18-0.35

SiO2(％)

-

-

0.4-0.7

-

0.6-0.8

-

0.08-0.14

Grain size distribution

d10(μｍ)

≤4

-

1.4-2.4

1.7-2.3

≤2.5

≤3

1.7-2.7

d50(μｍ)

≤8

-

3.4-4.4

3.5-4.5

≤5

≤6

3.8-5.3

d90(μｍ)

≤15

8-12

6.4-8.4

7.2-9.2

≤8

8-12

6.5-10.0

Tap density (g/㎤)

-

-

≥3.8

3.8-4.2

3.8-4.4

≥3.5

3.6-4.3

Mesh analysys

○

○

○

○

○

○

○
Carbonyl iron grades regarding electronic parts

Sintez-CIP carbonyl iron is often used to produce high-precision electronic parts, such as inductor cores, chokes, and transformers.

↓Typical Properties　Grade→

BK-4

BK-C

BC-CR

R-10

R-20

HM-C1

Fe(％)

Balance

Balance

≥98.5

Balance

Balance

≥97

Ca(％)

≤0.04

≤0.04

≤0.04

≤1.2

≤0.9

0.6-0.9

N(％)

≤0.01

≤0.01

≤0.01

≤1.0

≤0.9

≤0.9

Oxygen(％)

≤0.3

≤0.4

≤0.35

≤0.4

≤0.4

0.4-0.7

SiO2(％)

-

≤0.2

≤0.2

-

-

-

Grain size distribution

d10(μｍ)

-

-

1.5-2.5

≤4

≤3

≤1.8

d50(μｍ)

-

-

3.0-4.5

≤8

≤7

≤3.5

d90(μｍ)

-

-

6.0-8.5

≤15

≤10

≤6.5

Mi

≥25

≥25

19-25

13-15

12-14

10-12

Core loss（mW/cc）

-

-

1500-1600

-

-

≤200

Surface resistance (Mohm)

-

>200

>200

-

-

>200

Packing

Manufacturer introduction

Sintez-CIP is a Russian global carbonyl iron producer having sales networks in more than 20 countries in North America, South America, Europe, and Southeast Asia.
Sintez-CIP products are widely used in various industries, such as automobile, home appliance, electronic equipment, civil engineering construction, quarrying, food, and medicine.
Carbonyl iron produced by Sintez-CIP is used for advanced applications, such as metal injection molding, diamond tool manufacturing, electromagnetic components, interference shielding materials, synthetic diamonds, and press sintering. The company employed advanced technologies and production technique and focused on development and quality improvement. As a result, it acquired ISO 9001 in 2008.