Ni-Cr-Fe ALLOY MATERIAL

Abstract

A Ni—Cr—Fe alloy material according to the present disclosure contains a chemical composition that consists of, by mass %, C: 0.002 to 0.030%, Si: 0.05 to 0.50%, Mn: 0.10 to 1.50%, P: 0.050% or less, S: 0.0200% or less, Ni: 29.0 to 40.0%, Cr: 24.00 to 30.00%, Mo: 5.0 to 7.5%, N: 0.20 to 0.40%, Al: 0.50% or less, Ca: 0.0002 to 0.0040%, B: 0.0001 to 0.0050%, and the balance: Fe and impurities, and that satisfies Formula (1):0.<8.5×Mn+1⁢9.5×Ni-12.4⁢3×Cr-42.4×Mo-1⁢0⁢2⁢5⁢0×Ca+1250×B-7⁢4.3⁢7⁢76<6.5(1)where, a content of a corresponding element in mass % is substituted for each symbol of an element in Formula (1).

1 . A Ni—Cr—Fe alloy material consisting of, by mass %,
 C: 0.002 to 0.030%, 
 Si: 0.05 to 0.50%, 
 Mn: 0.10 to 1.50%, 
 P: 0.050% or less, 
 S: 0.0200% or less, 
 Ni: 29.0 to 40.0%, 
 Cr: 24.00 to 30.00%, 
 Mo: 5.0 to 7.5%, 
 N: 0.20 to 0.40%, 
 Al: 0.50% or less, 
 Ca: 0.0002 to 0.0040%, 
 B: 0.0001 to 0.0050%, 
 Cu: 0 to 0.40%, 
 W: 0 to 1.00%, 
 Sn: 0 to 0.50%, 
 Co: 0 to 0.50%, 
 V: 0 to 0.50%, 
 Nb: 0 to 0.50%, 
 Ti: 0 to 0.50%, 
 Zr: 0 to 0.200%, 
 Hf: 0 to 0.200%, 
 Ta: 0 to 0.50%, 
 rare earth metal: 0 to 0.0030%, and 
 with the balance being Fe and impurities, 
 the chemical composition satisfying the following Formula (1): 
 
       
         
           
             
               
                 
                   
                     0. 
                     < 
                     
                       
                         8.5 
                         × 
                         Mn 
                       
                       + 
                       
                         1 
                         ⁢ 
                         
                           9 
                           . 
                           5 
                         
                         × 
                         Ni 
                       
                         
                       - 
                       
                         12. 
                         4 
                         ⁢ 
                         3 
                         × 
                         Cr 
                       
                         
                       - 
                       
                         42.4 
                         × 
                         Mo 
                       
                       - 
                       
                         1 
                         ⁢ 
                         0 
                         ⁢ 
                         2 
                         ⁢ 
                         5 
                         ⁢ 
                         0 
                         × 
                         Ca 
                       
                         
                       + 
                       
                         1250 
                         × 
                         B 
                       
                       - 
                       
                         7 
                         ⁢ 
                         
                           4 
                           . 
                           3 
                         
                         ⁢ 
                         7 
                         ⁢ 
                         76 
                       
                     
                     < 
                     6.5 
                   
                 
                 
                   
                     ( 
                     1 
                     ) 
                   
                 
               
             
           
         
         where, a content of a corresponding element in mass % is substituted for each symbol of an element in Formula (1). 
       
     
     
         2 . (canceled) 
     
     
         3 . (canceled) 
     
     
         4 . (canceled) 
     
     
         5 . (canceled) 
     
     
         6 . The Ni—Cr—Fe alloy material according to  claim 1 , containing one or more elements selected from a group consisting of:
 Cu: 0.01 to 0.40%, 
 W: 0.01 to 1.00%, 
 Sn: 0.01 to 0.50%, 
 Co: 0.01 to 0.50%, 
 V: 0.01 to 0.50%, 
 Nb: 0.01 to 0.50%, 
 Ti: 0.01 to 0.50%, 
 Zr: 0.001 to 0.200%, 
 Hf: 0.001 to 0.200%, 
 Ta: 0.01 to 0.50%, and 
 rare earth metal: 0.0001 to 0.0030%.