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Austenitic stainless steels

AUSTENITIC STAINLESS STEELS
GRADE
INDICATIVE ANALYSIS
MECHANICAL PROPERTIES
HEAT TREATMENT Temp.°C
 
C
Mn
Si
Cr
Ni
Mo
P
S
state of material
R
Rs min
As min

KCU min

forging
quenching
solubilised
UNI X 12
Cr Ni 1707
AISI 301
≤0,15
≤2,00
≤1,00

16,00
÷
18,00

6,00
÷
8,00
-
≤0,45
≤0,030
solub.
60
÷
80
25

30

-
1150
÷
950
-
1050
÷
1100
water
UNI X 10
Cr Ni 1809
AISI 302
≤0,12
≤2,00
≤1,00
17,00
÷
19,00
8,00
÷
10,00
-
≤0,45
≤0,030
solub.
50
÷
75
22
40
-
1200
÷
900
-
1050
÷
1150
water
UNI X 10
Cr Ni 1809
AISI 303
≤0,012
≤2,00
≤1,00
17,00
÷
19,00
8,00
÷
11,00
≤0,60
≤0,20
0,15
÷
0,35
solub.
50
÷
75
22
40
-
1200
÷
900
-
1050
÷
1150
water
UNI X 5
Cr Ni 1810
AISI 304
≤0,06
≤2,00
≤1,00
17,00
÷
19,00
8,00
÷
11,00
-
≤0,45
≤0,030
solub.
50
÷
75
22
45
-
1200
÷
900
-
1050
÷
1150
water
UNI X 2
Cr Ni 1811
AISI 304 L
≤0,03
≤2,00
≤1,00
17,00
÷
19,00
9,00
÷
12,00
-
≤0,45
≤0,030
solub.
45
÷
65
18
45
-
1200
÷
900
-
1050
÷
1150
water
UNI X 8 Cr Ni 1812
AISI 305
≤0,10
≤2,00
≤1,00
17,00
÷
19,00
11,00
÷
13,00
-
≤0,45
≤0,030
solub.
50
÷
70
18
45
-
1200
÷
900
-
1050
÷
1150
water
UNI X 16
Cr Ni 2314
AISI 309
≤0,20
≤2,00
≤1,00
22,00
÷
24,00
12,00
÷
15,00
-
≤0,45
≤0,030
solub.
60
÷
75
23
30
-
1200
÷
900
-
1050
÷
1150
water
UNI X 22
Cr Ni 2520
AISI 310
≤0,25
≤2,00
≤1,50
24,00
÷
26,00
19,00
÷
22,00
-
≤0,45
≤0,030
solub.
60
÷
75
23
30
-
1200
÷
900
-
1050
÷
1150
water
UNI X 5
Cr Ni Mo 1712
AISI 316
≤0,06
≤2,00
≤1,00
16,00
÷
18,50
10,50
÷
13,50
2,00
÷
2,50
≤0,45
≤0,030
solub.
50
÷
70
21
40
-
1200
÷
900
-
1050
÷
1150
water
UNI X 2
Cr Ni Mo 1712
AISI 316L
≤0,03
≤2,00
≤1,00
16,00
÷
18,50
11,00
÷
14,00
2,00
÷
2,50
≤0,45
≤0,030
solub.
45
÷
70
20
40
-
1200
÷
900
-
1050
÷
1150
water
UNI X 6
Cr Ni 1811
AISI 321
≤0,08
≤2,00
≤1,00
17,00
÷
19,00
9,00
÷
12,00
Ti
-
5xC
≤0,45
≤0,030
solub.
50
÷
75
22
40
-
1200
÷
900
-
1050
÷
1150
water

 

FERRITIC STAINLESS STEELS
GRADE
INDICATIVE ANALYSIS
MECHANICAL PROPERTIES
HEAT TREATMENT Temp.°C
 
C
Mn
Si
Cr
Ni
Mo
P
S
state of material
R
Rs min
As
min

KCU min

forging
quenching
solubilised
UNI X 8 Cr 17
AISI 430
≤0,10
≤1,00
≤1,00

16,00
÷
18,00

≤0,50
-
≤0,04
≤0,03
recrystallized
45
÷
65
25

20

-
1150
÷
800
800
÷
820
water
780
UNI X 10 Cr S 17
AISI 430 F
≤0,12
≤1,50
≤1,00
16,00
÷
18,00
≤0,50
≤0,60
≤0,06
0,90
÷
1,30
recrystallized

50÷70

65÷80

30

-

15

12

-
1050
÷
750
800
÷
820
water
800
UNI X 8 Cr Mo 17
AISI 434
≤0,010
≤1,00
≤1,00
16,00
÷
18,00
≤0,50
0,90
÷
1,30
≤0,06
0,15
÷
1,35
recrystallized
50
÷
70
28
18
-
1050
÷
800
800
÷
820
water
800

 

MARTENSITIC STAINLESS STEELS
GRADE
INDICATIVE ANALYSIS
MECHANICAL PROPERTIES
HEAT TREATMENT Temp.°C
 
C
Mn
Si
Cr
Ni
Mo
P
S
state of material
R
Rs min
As
min

KCU min

forging
quenching
solubilised
UNI X 12 Cr 13
AISI 403
0,09
÷
0,15
≤1,0
≤0,06

11,5
÷
13

≤1,0
-
≤0,04
≤0,03

annelead queched

tempered

≤74

70÷85

-

50

-

14

-

4

1100
÷
900
950
÷
980
oil
600
÷
650
UNI X 12 Cr 13
AISI 410
0,09
÷
0,15
≤1,0
≤1,0
11,5
÷
14
≤1,0
-
≤0,04
≤0,03

annelead queched

tempered

 

≤74

70÷85

 

-

50

 

-

14

 

-

4

1100
÷
900
950
÷
980
oil
600
÷
650
UNI X 12 Cr 13
AISI 416
0,08
÷
0,15
≤1,0
≤1,0
12
÷
14
≤1,0
≤0,60
≤0,06
0,15
÷
0,35

annelead queched

tempered

 

≤74

70÷90

 

-

50

 

-

14

 

-

-

1100
÷
900
950
÷
980
oil
600
÷
650
UNI X 20 Cr 13
AISI 430
0,16
÷
0,25
≤1,0
≤1,0
12
÷
14
≤1,0
-
≤0,04
≤0,03

annelead queched

tempered

 

≤74

70÷95

 

-

55

 

-

14

 

-

3,5

1100
÷
900
950
÷
1000
oil
600
÷
650
UNI X 30 Cr 13
AISI 420 B
0,26
÷
0,35
≤1,0
≤1,0
12
÷
14
≤1,0
-
≤0,04
≤0,03

annelead queched

tempered

 

≤90

80÷100

 

-

60

 

-

12

 

-

3

1100
÷
900
950
÷
1000
oil
600
÷
650
UNI X 40 Cr 14
AISI 420 C
0,36
÷
0,45
≤1,0
≤1,0
12,5
÷
14,5
≤1,0
-
≤0,04
≤0,03

annelead queched

tempered

 

≤98

85÷105

 

-

65

 

-

10

-

2,5

1100
÷
900
950
÷
1000
oil
600
÷
650
UNI X 16 Cr Ni 16
AISI 431
0,10
÷
0,20
≤1,0
≤1,0
15
÷
17
1,6
÷
2,5
-
≤0,04
≤0,03

annelead queched

tempered

 

≤90

80÷100

 

-

60

 

-

14

 

-

3

1100
÷
900
950
÷
1000
oil
630
÷
680