google33175f2e3129d8c7.html

Hastelloy C, NS 3303 Chemical composition, structure and performance characteristics

Hastelloy C, NS 3303 Chemical composition, structure and performance characteristics

The chemical composition of this alloy is shown in Table 8-7. According to the ternary phase diagram of Ni-Cr-Mo, it is known that only a uniform single-phase austenite structure is obtained at 1150 ゚C, and it can be kept in a single phase only by solution treatment at a temperature of >11501 and rapid cooling. Sterile tissue. When treated below this temperature or slowly cooled, the alloy will consist of the y + P phase. The sensitization of 700~1050 ゚C, the structure of the alloy is y+ u+ carbide, and these precipitation phases are harmful to the corrosion resistance and plasticity of the alloy.

Alloy Name

Mo

W

Fe

A1

Ti

Nb

Cu

V

0Crl6Ni60Mol6W4

(Hastelloy C)NS 3303

15.0-

17.0

3.0~

4.5

4.0-

7.0

0.35

00Crl6Ni60Mol6W4

(Hastelloy C-276)NS 3304

15.0 ~

17.0

3.0~

4.5

4.0~

7.0

0.35

00Crl6Ni65Mol6

(Hastelloy C-4)NS 3305

14.0 ~

17.0

3.0

 

0.7

 

00Cr22Ni60Mol3W3

(Hastelloy C-22)NS 3308

12. 5 ~

14.5

2.5 ~

3.5

2.0~

6.0

0.35

00Cr23Ni59Mol6

(Alloy 59) NS 3311

15.0 ~

16.5

1.5

0. 1 ~

0.4

 

00Cr21Ni58MoI6W4

(Inconel 686) NS 3309

15.0 ~

17.0

3.0~

4.4

1.0

0.02 -

0.25

 

00Cr23Ni57Mol6Cu2

(HastelloyC-2000)NS 3405

15.0〜

17.0

3.0

0.5

1.3~

1.9

 

00Crl6Ni75Mo2Ti

NS 3301

2.0~

3.0

8.0

   

 

lCr22Ni60Mo9Nb4

(Inconel 625) NS 3306

8.0 ~

10.0

5.0

0.4

0.4

3.5 ~

4. 15

 

00Cr20Ni60Mo8Nb3Ti

(Inconel 625 Plus)UNS No7716

7 -

9.5

bal

0.35

1.0~

1.6

2.15-

4.0

00Cr20Ni60Mo8Nb3TiAl

(Inconel 725)UNS No7725

7.0~

9.5

bal

0.35

1.0-

1.7

2.75 -

4.0

00Cr33Ni55Mo8Fe

(Hastelloy G-35 )

8

 

2.0

The alloy is wet chlorine, various oxidizing chlorides (ferric chloride, copper chloride, mercuric chloride, etc.), hydrochloride solutions (calcium chloride, magnesium chloride, lead chloride, etc.), sulfuric acid and oxidizing salts. It has excellent corrosion resistance in various concentrations of organic acids in mixtures, sulfurous acid and boiling temperature, and has excellent pitting and crevice corrosion resistance in chloride solutions and seawater. It is the only corrosion resistant metal material in wet chlorine. The deficiency of this alloy is that there is intergranular corrosion in the sensitized state.

8.3. 1.2 Mechanical properties
The transient mechanical properties of 0Crl6Ni60Mol6W4 alloy at room temperature and high temperature are shown in Table 8-8.

Table 8*8 Instantaneous mechanical properties of 0Crl6Ni60Mol6W4 alloy at room temperature and high temperature

Sample status

test temperature/℃ Rm/MPa

Rp0.2/MPa

A/%

Z/%

Forged material,12001 water cooling

room temperature

900

43.4

52.9

0.5mm Strip,12001

room temperature

1076-1167

696 -735

33 -38

After water cooling, it is 5% ~ 10% flat forged, 1200 ° C water cooled

550

743

59.2

57.8

Forged material, 1200 ° C water-cooled

650

654

53.0

44.5

Forged material, 1200 ° C water-cooled

900

313

80.2

55.4

Forged material, 1200 ° C water-cooled

1000

178

53.2

52.3

Forged material, 1200 ° C water-cooled

1050

54.9

57.3

Forged material, 1200 ° C water-cooled

1100

89.2

71.9

56.3

Forged material, 1200 ° C water-cooled

1150

66.6

53.5

Forged material, 1200 ° C water-cooled

1200

47. 1

86.6

57.0

 

 

 

Send your message to us:

  • captcha

Post time: May-30-2019