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Properties of Valve Materials Steel
 

ALLOY
ASTM NO. OTHER
ALLOY
DESIGNATION
 NOMINAL OR MAXIMUM CHEMICAL COMPOSITION
AL CARBON
C
CHROME
Cr
COBALT
Co
COPPER
Cu
IRON
Fe
LEAD
Pb
MANGA-
NESE
Mn
MOLYB-
NESE
Mo

304 Wrot 304
316 Cast 316
A 167 304
A 351 CF8M 
UNS S30400
UNS S31600
  0.08
0.08
19
20
        2
1.5

2.5
316 Cast 316
316 Cast 316
A 743 CF16F
A 743 CF8M
    0.16
0.08
20
20
        1.5
1.5
1.5
2.5
316 Wrot 316
410 Cast 410
A 276 316
A 217 CA 15
UNS S31600   0.08
0.15
17
13
        2
1

2.5
410 Forged 410
  410 Wrot 410
A 182 F6A2
A 276 410

UNS S41000
  0.15
0.15
13
13
        1
1
 
416 Wrot 416
420 Wrot 420
A 582
A 276 420
UNS S41600
UNS S42000
  0.15
0.15
13
13
        1.25
1
 
20 Cast Alloy 20
20 Wrot Alloy 20
A 743 CN7M
B 473 20C63

UNS N08020
  0.07
0.07
20
20
  3.5
3.5
    1.5
2
2.5
2.5
17-4PH Wrot 17-4PH A 564 630 UNS S17400   0.07 16   3.5     1  



 Forged Carbon Steel
  Cast Carbon Steel
A 105
A 216 WCB
    0.35
0.3
          1
1.1
 
11/4 Cast Cr. Moly Steel
Cast Cr. Moly Steel
A 217 WC6
A 217 C5
    0.2
0.2
1.2
5
        0.7
0.55
0.55
0.55
 Cast Low Carbon Steel
Nickel-Low Carbon Steel
A 352 LCB
A 352 LC2
    0.3
0.25
          1.0
0.65
 
 B-7 Alloy Steel Studs
304 SS Nuts
A 193 B7
A 194 GR8
    0.4
0.08
1
19
        0.85
2
0.2
2-H Alloy Steel Nuts
  Reg. Steel Bolting
A 194 2H
A 307 Gr. B
    0.4
0.2
         
0.45
 
Steel Bolting
  304SS Bolting
A 449
A 493 304
UNS S30400   0.4
0.08

19
        0.6
2
 
Eyebolts
  Gland Nuts
A 489
A 563 Gr. A
    0.48
0.37

0.55
 
0.35
    1.0
1.0
 
 H/W Nuts
  Swing Bolt Pin
A 108 1020
A 108 1212
UNS G10200
UNS G12120
  0.20
0.13
          0.45
0.85
 
Yoke Bushing Caps
  Seat Ring Base
A108 12L14
A 519 1026
    0.15
0.25
        .25 1.0
0.75
 
(Trademark Materials
like, Stellite 6*, Stoody 6,
and Wallex 6)
  AWS 5.13   1.25 29 55   2.5      
Cast Monel
Wrot Monel (K-500)
  QQ-N-288-E
QQ-N-286-C1B
  0.5
3.0
0.3
0.1
  30
24
3.5
2.0
  1.5
1.5
 

 

ALLOY NOMINAL OR MAXIMUM CHEMICAL COMPOSITION NOMINAL PHYSICAL PROPERTIES
NICKEL
Ni
PHOS
P
SILICON
Si
SULFUR
S
TIN
Sn
TITAN-
IUM
Ti
TUNG-
STEM
W
ZINC
Zn
TENSILE
STRENGTH
Psi
YIELD
STRENGTH
Psi
%
ELONGATION
HARDENESS
Wrot 304
  Cast 316
9
11
0.045
0.04
1.0
2.0
0.03
0.04
        75,000
70,000
30,000
30,000
40
25
202 HB
Cast 316
  Cast 316
11
12
0.04
0.045
2.0
1.0
0.04
0.03
        70,000
75,000
30,000
30,000
30
30
 
 Wrot 316
  Cast 410
12
1
0.045
0.04
1.0
1.5
0.03
0.04
        75,000
90,000
30,000
65,000
30
18
 
Forged 410
   Wrot 410

0.5
0.04
0.04
1.0
1.0
0.03
0.03
        85,000
100,000
55,000
80,000
18
15
200/225 HB
 Wrot 416
  Wrot 420
  0.06
0.04
1.0
1.0
0.15
0.03
        114,000 95,000 17 235 HB
250/450 HB
Cast Alloy 20
  Wrot Alloy 20
28
35
0.04
0.045
1.5
1.0
0.04
0.035
        62,000
85,000
25,000
35,000
35
30
 
 Wrot 17-4PH 4 0.04 1.0 0.03         115,000 75,000 18 255 HB


 

 Forged Carbon Steel
  Cast Carbon Steel
  0.04
0.04
0.035
0.6
0.05
0.045
        70,000
70,000
36,000
36,000
22
22
187 HB
11/4 Cast Cr. Moly Steel
  Cast Cr. Moly Steel
  0.04
0.04
0.06
0.75
0.045
0.045
               
Cast Low Carbon Steel
  Nickel-Low Carbon Steel

2.5
0.04
0.04
0.6
0.6
0.045
0.045
        65,000
70,000
35,000
40,000
24
24
 
B-7 Alloy Steel Studs
  304 SS Nuts

9
0.035
0.045
0.25
1.0
0.04
0.03
        125,000 105,000 16
126/300 HB
2-H Alloy Steel Nuts
  Reg. Steel Bolting
  0.04
0.04
  0.05
0.05
       
100,000
 
18
250/300 HB
121/212 HB
Steel Bolting
  304SS Bolting

9
0.04
0.045

1.0
0.05
0.03
        120,000
90,000
92,000 14  
 Eyebolts
  Gland Nuts

0.35
0.04
0.04
0.25
0.2
0.05
0.05
        75,000 30,000 30  
H/W Nuts
  Swing Bolt Pin
  0.04
0.10
  0.05
0.20
              120/300 HB
Yoke Bushing Caps
  Seat Ring Base
  0.07
0.04
  0.3
0.05
       
55,000

35,000

25
 
(Trademark Materials like,
Stellite 6*, Stoody 6, and Wallex 6)
3           5   105,000   10 350 HB
Cast Monel
  Wrot Monel (K-500)
60
67
1.5
0.5

0.01

0.5
        65,000
135,000
32,500
95,000
25
20
125/150 HB
255 HB

 From: NVF valve knowledge

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