Twin Extruder Core Segment Components Recommended Material Form

Mar 31,2016

1.Major Chemical and Hardness Comparison Table of Recommended Material of an Oval Liner for Corrosion Resistance

Alloy Name

Material Type

Fe

C

Cr

Ni

Co

Si

Mn

Mo

V

W

For Corrosion

For wear

Ω101A

High Chromium Iron

Bal

2.7

27.0

--

--

1.0

0.8

0.6

0.5

--

★

★★★

C-276

Ni-base Hastelloy Alloy

7.0

0.01

16.5

Bal

2.5

0.08

1.0

17.0

0.3

4.5

★★★

★

Ω 301A

Co-base+WC

3.0

2.45

32.0

3.0

Bal

1.0

0.5

1.0

--

17.0

   ★★

   ★★

Ω 301+AISI.45

Bimetallic: Ni-base+WC protection alloy layer

15.0

0.8

15.5

Bal

8.0

4.0

6.0

--

--

25

★★★

★★★

Composite

Ceramic SiC

With excellent friction and wear properties, excellent chemical stability, against for almost all inorganic acids and lye, salt corrosion. Hydrofluoric acid resistance is generally

 ★★★★

 ★★★★


2.Major Chemical and Hardness Comparison Table of Recommended Material for Segment Screw & Kneading Disk for Corrosion Resistance

Alloy Name

Material Type

Fe

C

Cr

Ni

Co

Si

Mn

Mo

V

W

For Corrosion

For wear

316L

        Molybdenum Stainless Steel

Bal

0.03

18.0

15.0

--

  1.0

2.0

3.0

--

--

★★

★

C-276+AISI.45

Bimetallic: Ni-base Hastelloy & PM Steel

7

0.01

16.5

Bal

2.5

0.08

1

17

0.3

4.5

★★★

★

WR13+AISI.45

   Bimetallic: High-chromium Alloy & PM Steel

Bal

2.6

26.0

0.4

--

0.6

0.5

1.1

2.7

--

  ★★★

  ★★★


* For making the barrel liner and the segment screw, the same alloy is not suggested because of they serious contact wear ratio. 

 

* Different corrosion conditions, a different material in response to. For example, deal with the hydrofluoric acid HF, nickel-base material is appropriate.

 

Chief Engineer Office / Shanghai Omega Machinery Co., Ltd

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