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Valve springOur group manufactures professionally various types of low and high temeratures resistance springs and corrosion resistance springs, e.g. valve springs, disc springs and other special shaped springs.
Spring performance is determined primarily by its material and heat treatment. The materials shall be choosen upon different applications. The followings are materials we often use and their specifications.
Material 1: Inconel X-750/ NO7750/ 2.4669/ GH4145
Service Temperature
Compositions (%)
Ni+ Co
Cr
Fe
Ti
Al
Nb+ Ta
-200℃～+600℃
14～17
≥70
5～9
2.25～2.75
0.4～1.0
0.7～1.2
Material 2: Inconel 718/ NO7718/ 2.4668/ GH4169
Service Temperature
Compositions (%)
Ni+ Co
Cr
Nb+ Ta
Mo
Ti
Al
Fe
-200℃～+650℃
50～55
17～21
4.75～5.5
2.8～3.3
0.65～1.15
0.2～0.8
Bal.
Material 3: 30W4Cr2VA
Service Temperature
Compositions (%)
C
Si
Mn
Cr
V
W
Fe
-40℃～+500℃
0.26～0.34
0.17～0.37
≤ 0.40
2.00～2.50
0.10～0.20
4.00～4.50
Bal.
Material 4: UNS R30003/ 3J21
Service Temperature
Compositions (%)
Co
Cr
Ni
Mo
Fe
-185℃～+450℃
39～41
19～21
14～21
6.5～7.5
Bal.
Material 5: Hastelloy C-276/ N10276/ 2.4819/ NS334
Service Temperature
Compositions (%)
Ni
Mo
Cr
Fe
W
-200℃～+400℃
55
15～17
14.5～16.5
4～7
3～4.5
Material 6: TC4/ 3.7164/ 3.7165/ CR5
Service Temperature
Compositions (%)
Al
V
H
Ti
-200℃～+400℃
5.5～6.75
3.5～4.5
≤0.015
Bal.
Material 7: 17-7PH/ 1.4568/ S17700/ GH631
Service Temperature
Compositions (%)
Cr
Ni
Al
Fe
-40℃～+350℃
16～18
6.65～7.75
0.75～1.5
Bal.
Material 8: Inconel 600/ NO6600/ 2.4816/ NS312
Service Temperature
Compositions (%)
Ni
Cr
Fe
-200℃～+330℃
≥72
14～17
6～10
Material 9: Inconel 625/ NO6625/ 2.4856/ NS336
Service Temperature
Compositions (%)
Ni
Cr
Fe
Mo
Nb+ Ta
-200℃～+340℃
≥58
20～23
≤5
8～10
3.15～4.15
Material 10: Monel 500/ NO5500/ 2.4375
Service Temperature
Compositions (%)
Ni
Cu
Fe
Al
Ti
-100℃～+260℃
≥63
30
≤2
2.3～3.15
0.35～0.85
Material 11: NO8020/ 2.4660/ CN7M
Service Temperature
Compositions (%)
Ni
Cr
Cu
Mo
C
Fe
-200℃～+300℃
32～38
19～21
3～4
2～3
≤0.07
Bal.
Material 12: 304
Service Temperature
Compositions (%)
Cr
Ni
Fe
-200℃～+300℃
18～20
8～10.5
Bal.
Material 13: 316
Service Temperature
Compositions (%)
Cr
Ni
Mo
Fe
-200℃～+300℃
16～18
10～14
2～2.5
Bal.
Material 14: 50CrVA/ 50CrV4/ 6150
Service Temperature
Compositions (%)
C
Si
Mn
V
Fe
-40℃～+250℃
0.46～0.54
0.17～0.37
0.5～0.8
0.1～0.2
Ba.
Material 15: 60Si2MnA/ 9260
Service Temperature
Compositions (%)
C
Si
Mn
Cr
Fe
-40℃～+200℃
0.56～0.64
0.16～0.2
0.6～0.9
≤0.35
Ba.
Material 16: 65Mn/ 1066
Service Temperature
Compositions (%)
C
Si
Mn
Fe
-40℃～+120℃
0.62～0.7
0.17～0.37
0.90～1.2
Bal.
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