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431  1.4057

  Technical Data

 431 is a 17% chromium 2 1/2% nickel martensitic stainless steel. It is usually supplied in the high tensile condition.

Typical Analysis

 

 

 

 

 

C.

Mn.

P.

S.

Si.

Cr.

Ni.

0.12-

1.00%

0.04%

0.03%

1.00%

15.00-

2.00-

0.20%

max.

max.

min.

max.

18.00%

3.00%

 

Physical Properties
  Temperature    
 

20ºC

100ºC

200ºC

400ºC
Modulus of elasticity

22500

22000

21000

19500
kg/mm        
Specific heat

0.11

0.12

0.13

0.14
kcal/ºC        
Specific electrical resistance

0.6

0.7

0.8

0.95
(resistivity)        
  Mean value for:    
  20-100ºC 20-200ºC 20-400ºC 20-800ºC
Coefficient of Thermal Expansion

10

11

11.5

12
x10-6 per ºC        
Density g/cm3 at 20ºC

7.7

      
Scaling temperature ºC

850ºC

      

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