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60Si2MnA is a commonly material for disc spring. Because of high silicon composition, 60Si2MnA's strength and elasticity is good, and its tensile strength is higher than 50CrV4.


50CrV4 is the most commonly material for disc spring. Because of high alloy composition, 50CrV4 has the best performance over the temperature range -15°C to +150°C. 50CrV4 has high strength, yield ratio, good toughness, high fatigue strength, It is suitable for high stress amplitude and strict fatigue performance requirements. Its fatigue life is higher than 60Si2MnA.


Steel Grade Equivalents Chart

Popular Name

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International Standard Organization

60Si2Mn

60Si2Mn

60Si7

60Si7

1.0909

60C2

60Si7

SUP6

--

ASTM9260

SPS3

SUP6

61SiCr7

50CrV4

50CrV

50CrV4

50CrV4

1.8159

50XΦA

735A50

SUP10

2230

6150

SPS6

SUP10

51CrV4


Chemical Composition of Materials

Material

C

Si

Mn

P≤

S≤

Cr

Mo

Ni

V

W

Al

Ti

Be

Cu

Co

Fe

Nb

60Si2Mn

0.56-0.64

1.50-2.00

0.70-1.00

0.025

0.025

≤0.35


≤0.35










50CrV

0.47-0.55

0.15-0.40

0.7-1.10

0.025

0.025

0.90-1.20


≤0.35

0.1-0.2










Effects of Temperature on Modulus of Elasticity

Material

20

100

200

300

400

500

600

700

60Si2Mn

206

204

199






50CrV4

206

202

196







Referrence Data of Belleville Disc Spring Materials

Material

20 Modulus of Elasticty (KN/mm2)

tensile strength σb/Mpa

Yield Strength σs/Mpa

Elongation rate δ 5 (δ 10)(%)

Section shrinkage Ψ (%)

Max Thickness mm

Operating Temperature range

Application

60Si2Mn

206

1570

1375

5

20

25

-20 till 150

Plant Construction, Machine tools, Automotive

50CrV4

206

1275

1130

10

40

25

-20 till 150


SUS301 is corrosion resistant material. The strength of such material is obtained by cold rolling, so maximum material thickness is 3mm. Cold rolling will also give the spring some magnetic properties. Situation for SUS301 is soft, Half hard, 3/4 hardness, and full hard.


SUS304 is corrosion resistant material. The content of C% is lower than SUS301, low hardness, non-magnetic, good elasticity, and good cold processing effect. Its Corrosion resistance is better than SUS301. And maximum material thickness is 3mm.


SUS316 is corrosion resistant material. Because of Mo%, the corrosion resistance of SUS316 is better than SUS304. But tensile strength is lower than SUS301 and SUS304. Because of High Ni %, the corrosion and temperature resistance of SUS316L is better than SUS316. And maximum material thickness is 3mm.


17-4PH is a martensitic precipitation hardening stainless steel. Because the strength can be obtained by aging treatment, so its material thickness can reach 3mm and above. It can work under- 200 degrees.


17-7PH is austenitic-martensitic precipitation hardening stainless steel. The strength of such material is obtained by work hardening and precipitation hardening. Its Corrosion resistance is higher than 17-4PH. And its material thickness can reach 3mm and above.


15-7PH is precipitation hardening stainless steel. Because of Mo%, its corrosion resistance is better than 17-7PH. However, Corrosion resistance of such precipitation-hardening stainless steels, such as 17-4PH, 17-7PH, and 15-7PH is worse than austenitic material such as SUS301, 304, and 316. But its thickness can reach 3mm and above.


Steel Grade Equivalents Chart


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301

12Cr17Ni7

Z12CN17-07

X10CrNi18-8

1.4310

--

301S21

SUS301

--

301

STS301

301

X5CrNi17-7

304

06Cr19Ni9

Z6CN18-09

X5CrNi18-10

1.4301

08X18H10

304S15

SUS304

2332

304

STS304

304

X5CrNi18-10

316

06Cr17Ni12Mo2

Z6CND17-11

X5CrNiMo17-12-2

1.4401

--

316S16

SUS316

2347

316

STS316

316

X5CrNiMo17-12-2

Z6CND17-12

X5CrNiMo17-13-3

1.4436

316S31

2343

17-4PH

05Cr17Ni4Cu4Nb

Z6CNU17-04

X5CrNiCuNb17-4

1.4542

--

--

SUS630

--

630

STS630

630

X5CrNiCuNb16-7

17-7PH

07Cr17Ni7Al

Z8CNA17-07

X7CrNiAl17-7

1.4568

09X17H7ю

SUS631



631

STS631

631

X7CrNiAl17-7

15-7PH

07Cr15Ni7Mo2Al

--

--

--

--


SUS632

--

632

STS632

632

X8CrNiMoAl15-7-2


Chemical Composition of Materials

MaterialCSiMnP≤S≤CrMoNiVWAlTiBeCuCoFeNb
3010.15120.0450.0316.00-18.00
6.00-8.00








3040.08120.0450.0318-20
8-10.5








3160.08120.0450.0316-182-310-14








17-4PH≤0.07≤1.0≤1.00.040.0315-17.5
3.0-5.0




3.0-5.0

0.15-0.45
17-7PH≤0.09≤1.0≤1.00.040.0316-18
6.5-7.75

0.75-1.5





15-7PH≤0.09≤1.0≤1.00.040.0314-162.00-3.006.5-7.75

0.75-1.5






Effects of Temperature on Modulus of Elasticity

Material

20

100

200

300

400

500

600

700

SUS301

190

185

178






SUS304

190

185

178






SUS316

190

185

178






17-4PH

196

190

185






17-7PH

200

195

190






15-7PH

200

195

190







Referrence Data of Belleville Disc Spring Materials

Material20 Modulus of Elasticty (KN/mm2)tensile strength σb/MpaYield Strength σs/MpaElongation rate δ 5 (δ 10)(%)Section shrinkage Ψ (%)Max Thickness mmOperating Temperature range ℃Application
SUS30119052020540603-150 till 200Food Processing,
Chemical Industry,
Instrument Industry,
Metallurgy,
Wind power,
Plant Construction
SUS30418952020540603
SUS31618552020540603
17-4PH196≥1310≥1180≥10≥4025
17-7PH200117096562525-200 till 200
15-7PH2001901704
25
Inconel 75021493051530
25-200 till 500
Nimonic 90206117572930
25-200 till 600


30W4CrVA is kind of spring steel, good fatigue strength, high temperature, up to 500 degrees. But its corrosion resistance is worse than stainless steel.

H13 is hot-die steel, and is mainly used with bolts and nuts, high temperature, up to 600 degrees. But its corrosion resistance is worse than stainless steel.

X22CrMoV12 1 is a kind of thermally stable material. Because of heat-treatable molybdenum vanadium, its working temperature range is -60 °C to +350 °C. But Brittle fracture can cause premature failure of X22CrMoV12 1 disc spring.

Steel Grade Equivalents Chart

Popular Name

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CHINA Taiwan

International Standard Organization

30W4Cr2V

30W4Cr2V

--

30WCrv17.9

1.2243

--

--

--

--

--

--

--

--

H13

4Cr5MoSiV1

--

--

--

--

--

SKD61

8407

H13

--

--

--

X22CrMoV12 1

X22CrMoV12 1

--

X22CrMoV12 1

1.4923

--

--

--

--

--

--

--

--


Chemical Composition of Materials

Material

C

Si

Mn

P≤

S≤

Cr

Mo

Ni

V

W

Al

Ti

Be

Cu

Co

Fe

Nb

30W4Cr2V

0.26-0.34

0.17-0.37

≤0.4

0.025

0.02

2-2.5


≤0.35

0.5-0.8

4.0-4.5








H13

0.32-0.45

0.8-1.25

0.2-0.60

0.03

0.03

4.75-5.5

1.1-1.75


0.8-1.2









X22CrMoV12 1

0.18-0.24

0.5

0.40-0.90

0.025

0.015

11.0-12.5

0.80-1.20

0.30-0.80

0.25-0.35










Effects of Temperature on Modulus of Elasticity

Material

20

100

200

300

400

500

600

700

30W4CrV

206

202

196






H13

300




180




X22CrMoV12 1

209

205

200

193






Referrence Data of Belleville Disc Spring Materials

Profile

Material

20 Modulus of Elasticty (KN/mm2)

tensile strength σb/Mpa

Yield Strength σs/Mpa

Elongation rate δ 5 (δ 10)(%)

Section shrinkage Ψ (%)

Max Thickness mm

Operating Temperature range

Application

Thermally Stable

30W4CrV

206

1470

1325

7

40

3


Valves, Boilers, Power plantconstruction, Industrial Furnaces and ovens, Chemical Industry

H13

210

1740

1460

10

15

25


X22CrMoV12 1

209

800-950

600

14

40

8

-60 till 350


CuBe2 is a precipitation strengthened copper-antimony alloy. It can work at extremely low temperatures. However, its modulus of elasticity is small, Tensile strength and force load is not good. In addition, CuBe2 has good electrical conductivity.


Steel Grade Equivalents Chart

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CuBe2

CuBe2

--

--

--

--

--

--

--

--

--

--

--


Chemical Composition of Materials

Material

C

Si

Mn

P≤

S≤

Cr

Mo

Ni

V

W

Al

Ti

Be

Cu

Co

Fe

Nb

CuBe2








0.2





1.90-2.20

Rest


0.5



Effects of Temperature on Modulus of Elasticity

Material

20

100

200

300

400

500

600

700

CuBe2

135

131

126






Referrence Data of Belleville Disc Spring Materials

Material

20 Modulus of Elasticty (KN/mm2)

tensile strength σb/Mpa

Yield Strength σs/Mpa

Elongation rate δ 5 (δ 10)(%)

Section shrinkage Ψ (%)

Max Thickness mm

Operating Temperature range

Application

CuBe2

135

1200-1400

1000

3


3

-250 till 350

Electronics industry,
cryogenic technology


INCONEL 718 is high temperature, up to 600 degrees, corrosion resistant, non-magnetic material. Such material has high toughness and fatigue strength. When designing such material. Disc springs, we must consider the characteristics of low tensile strength and small yield point, otherwise the possibility of load loss will increase.


INCONEL 750 is high temperature, up to 600 degrees, corrosion resistant, non-magnetic material. Such material has high toughness and fatigue strength. When designing such material disc springs, we must consider the characteristics of low tensile strength and small yield point, otherwise the possibility of load loss will increase. Depending on the acid conditions, we choose different materials, INCONEL 718 or INCONEL 750.


NIMONIC 90 is high temperature material, up to 700 degree, Because of high Ni %, its corrosion resistance is much better.


Steel Grade Equivalents Chart

Popular Name

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Janpan

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USA

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CHINA Taiwan

International Standard Organization

Inconel 718

GH4169

ATG C1
NC19FeNb

NiCr19NbMo

2.4668

--

Inconel 718

--

--

Inconel 718

--

--

--

Inconel 750

GH4145

ATG F
NC15FeTNbA

NiCr15Fe7TiAl

2.4669

ЭЛ974

Inconel 750

NCF750B

--

Inconel 750

--

--

--

Nimonic 90

GH4090

ATG S4
NC20KTA

NiCr20Co18Ti

2.4969
2.4632

ЭЛ617

Nimonic90
2HR2

--

--

SAE
HEV6

N7090

--

--


Chemical Composition of Materials

Material

C

Si

Mn

P≤

S≤

Cr

Mo

Ni

V

W

Al

Ti

Be

Cu

Co

Fe

Nb

Inconel 718

≤0.08

≤0.35

≤0.35

0.015

0.015

17-21

2.8-3.3

50-55



0.2-0.8

0.65-1.15


≤0.3

≤1

rest

4.75-5.5

Inconel 750

≤0.08

≤0.5

≤1

0.015

0.01

14-17


≥70



0.4-1

2.25-2.75


≤0.5

≤1

5-9

0.7-1.2

Nimonic 90

0.13

0.8

0.4

0.02

0.015

18-21


Rest



1-2

2-3


0.2

18-21

1.5

B0.02
Zr 0.15


Effects of Temperature on Modulus of Elasticity

Material

20

100

200

300

400

500

600

700

Inconel 718

200

196

190

186

179

172



Inconel 750

214

207

198

190

179

170



Nimonic 90

206

201

195

189

181

175

167

160