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.
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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.
60C2
60Si7
SUP6
--
ASTM
SPS3
SUP6
61SiCr7
50CrV4
50CrV
50CrV4
50CrV4
1.
50XΦA
735A50
SUP10
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
5
20
25
-20 till 150
Plant Construction, Machine tools, Automotive
50CrV4
206
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
Popular Name
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301
12Cr17Ni7
Z12CN17-07
X10CrNi18-8
1.
--
301S21
SUS301
--
301
STS301
301
X5CrNi17-7
304
06Cr19Ni9
Z6CN18-09
X5CrNi18-10
1.
08X18H10
304S15
SUS304
304
STS304
304
X5CrNi18-10
316
06Cr17Ni12Mo2
Z6CND17-11
X5CrNiMo17-12-2
1.
--
316S16
SUS316
316
STS316
316
X5CrNiMo17-12-2
Z6CND17-12
X5CrNiMo17-13-3
1.
316S31
17-4PH
05Cr17Ni4Cu4Nb
Z6CNU17-04
X5CrNiCuNb17-4
1.
--
--
SUS630
--
630
STS630
630
X5CrNiCuNb16-7
17-7PH
07Cr17Ni7Al
Z8CNA17-07
X7CrNiAl17-7
1.
09X17H7'
SUS631
631
STS631
631
X7CrNiAl17-7
15-7PH
07Cr15Ni7Mo2Al
--
--
--
--
SUS632
--
632
STS632
632
X8CrNiMoAl15-7-2
Chemical Composition of Materials
MaterialCSiMnP'S'CrMoNiVWAlTiBeCuCoFeNb....00-18.006.00-8....-208-10....-182-310--4PH'0.07'1.0'1.00.040.-17.53.0-5.03.0-5.00.15-0.-7PH'0.09'1.0'1.00.040.-186.5-7.750.75-1.515-7PH'0.09'1.0'1.00.040.-162.00-3.006.5-7.750.75-1.5Effects 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 'ApplicationSUS-150 till 200Food Processing,Disc Springs, also known as Belleville Washers, are commonly used in high load engineering applications such as clutches and valves. In precision or safety critical products these basic springs may not offer the accurate loading or dimensional tolerances required of the application. Smalley's range of Wave Springs offers a reliable and preferred spring choice for many engineers. Here are four good reasons why you should consider Wave Springs for your next project:
A common problem associated with disc springs and wavy washers occurs because of the differences in mechanical properties as a result of variances in production and heat treatment. All die-stamped products are manufactured from an annealed material that requires heat treatment after stamping and, because of the inconsistency in characteristics that results from this process, the load at defined working heights can vary enormously. A Smalley Wave Spring is produced by edge-coiling prehardened material to the correct diameter and wave height to produce a product with a guaranteed load at specified work heights.
Because of the reasons explained above, when installing disc springs, it is difficult to identify the correct number of springs/washers needed to achieve the desired load. In order to correctly understand the quantity needed, the engineer is required to 'trial and error' the assembly with a differing number of springs until the correct load characteristics are obtained. Apart from the obvious problem of time wasting, this also often results in trouble during production caused by the misalignment of the stacked components. In comparison, a single Smalley Wave Spring eliminates this guesswork as it is produced to the exact specifications for the application from a single coil of material and is ready for immediate installation when received by the customer.
Since Disc Springs and Wavy Washers are a stamped product, they require specific tooling to create the finished article whereas our Smalley products are produced by edge coiling and do not require any tooling. Furthermore, die-stamped products are produced from sheet metal and the waste products of this process, particularly where exotic materials such as Inconel and Elgiloy are concerned, is significant. The availability of Smalley products is almost instant since the wire is coiled in-house and is generally available off-the-shelf and can be produced to customer specific dimensions without compromise to the assembly.
TFC's team of engineers are always on hand to assist in the design or specification of a spring to meet your application requirements.
We are able to offer a variety of alternatives to Disc Springs and Wavy Washers. Our Smalley Crest-to Crest®, Nested, Interlaced and Wavo® Springs each offer an alternative solution and have been successfully specified in many high load engineering applications.
Standard product samples are always available for fit and function tests and our team can be available on site to support those tests.
If you want to learn more, please visit our website volute spring catalog.