40 4543-71
() , 7565-81, . 12344-78 12365-84.
, % ( 4543-71)
C | Si | Mn | Cr | Ni | P | S | Cu |
0.36-0.44 | 0.17-0.37 | 0.5-0.8 | 0.45-0.75 | 1.00-1.40 | 0.035 | 0.035 | 0.30 |
20 , , . () .
. , 847970.
( 1 8479-70) 847970 . , 1 8479-70, .
, 8479-70.
, , 100 . 100 . , 977-75 2176-77.
, , , , .
149784, 9454-78, 25.502-79. ( ), , .
( 9454-78) ( 9651-84).
3248-60 10145-62.
|
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, , (). (0.3-0.5)% , (820-880) ( ) ( ) (550-680). . , , , - . , .
t=-100 , .
t=-30 , .
6130-71 , , (, ).
9.908-85 () , , . , . . , , (/).
, , , , .
, , , .
, , :
1) , ( );
2) ( 100120 );
3) ( : 200 300 , );
4) , .
. , , . .
, , . . :
. . ( );
. . ( );
. . ( );
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. . ( -).
1643870. .
, ; ; . , . 5070 .
, 977-75, II III .
, , .
, , . , , , , , , . .
, , , , .
: - 1250, 830.
50 , 51 200 , 201 300 .
, 510, 8 ( ), 18, 12 ( ) 1, 5 , 0, 2 / φ = 60.
166-170 σ=690 ; ν .=1.0; ν .=0.9.
ν=1.0 (0.9) ν , , (12, 18); ν 45 ( 179), .
565769 ( ). , .
, HRC
, (). | |||||||||
1.3 | 3.0 | 4.5 | 6.0 | 9.0 | 12.0 | 15.0 | 21.0 | 27.0 | 33.0 |
52.2-58.5 | 51.5-58.0 | 49.5-57 | 48-56 | 41.5-54.5 | 35.5-49 | 32.3-43.5 | 28-37.5 | 26.5-33.5 | 26-31.5 |
; (%) | ; HRC | ; () | |
44-47 | 60-112 | 34-76 | |
50-53 | 40-86 | 18-56 |
() :
o
o
o -
o .
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.
450600 . :
o
o
o
.
, , , . , . , , . , .
, ≤3.0% Ni. .
70 40; 45; 50, .