Technical Guide
DIN 2093 Disc Springs | Manufacturer RFQ and Size Guide
Prepare DIN 2093 disc spring RFQs by size, group, load, material, stack arrangement and quantity for industrial replacement or production sourcing.
Read GuideSUS631 / 17-7PH Disc Spring Supplier | Stainless Belleville RFQ
Request SUS631, 17-7PH, 15-7Mo, 301, 304 and 316 stainless disc spring supplier or wholesale quotes for corrosion-resistant valve, marine and industrial load control.
Engineered for Reliable Load Control
Request SUS631, 17-7PH, 15-7Mo, 301, 304 and 316 stainless disc spring supplier or wholesale quotes for corrosion-resistant valve, marine and industrial load control.
- DIN 2093 spring geometry
- Corrosion resistant stainless material family
- Suitable for humid, chemical and outdoor service
If you need to estimate load, deflection or stack arrangement, use the Disc Spring Design Calculator before sending drawings for engineering review.
Standard Sizes
DIN 2093 geometry available across common OD 6-1000 mm catalog ranges and custom stainless dimensions.
Materials
301, 304, 316, 630 / 17-4PH, 631 / 17-7PH and 632 / 15-7Mo stainless steel disc spring grades.
Temperature Range
-240 deg C to +355 deg C depending on stainless grade and heat treatment.
Recommended Applications
- Marine and offshore equipment
- Chemical processing valves
- Food and pharmaceutical machinery
- Corrosion-resistant bolted joints
RFQ DATA CHECKLIST
Send the application data engineers need first
For a faster quotation, include the basic spring geometry, target load and service condition. If a value is not confirmed yet, send the drawing or installed photos and mark it as estimated.
- OD / outside diameter
- ID / inside diameter
- Thickness and free height
- Material or working environment
- Quantity and delivery target
- Target load and working deflection
- Working temperature
- Application, drawing or photos
Key Product Data
DIN 2093 geometry available
Outside diameter 6-1000 mm
Stainless grades to +355 deg C
630 / 631 / 632 PH stainless options
DIN 2093 Geometry Examples
| Part no. | Load class | De (mm) | Di (mm) | t (mm) | h0 (mm) | l0 (mm) | Load at 75% h0 (N) |
|---|---|---|---|---|---|---|---|
| FT100005 | C | 8 | 4.2 | 0.2 | 0.25 | 0.45 | 39 |
| FT100024 | C | 12.5 | 6.2 | 0.35 | 0.45 | 0.8 | 151 |
| FT100061 | C | 20 | 10.2 | 0.5 | 0.65 | 1.15 | 254 |
| FT100122 | C | 40 | 20.4 | 1 | 1.3 | 2.3 | 1020 |
| FT100155 | C | 63 | 31 | 1.8 | 2.35 | 4.15 | 4238 |
Geometry follows DIN 2093; material selection is tuned for corrosion resistance.
Stainless Material Options
| Grade | Equivalent designation | Temperature range | Thickness range | Tensile strength |
|---|---|---|---|---|
| 301 | X12CrNi17-7 / 1.4310 | -200 to +200 deg C | 0.2-4 mm | 1100-1500 MPa |
| 304 | X5CrNi18-10 / 1.4301 | -200 to +200 deg C | 0.2-4 mm | 1100-1800 MPa |
| 316 | X5CrNiMo17-12-2 / 1.4401 | -200 to +200 deg C | 0.2-4 mm | 950-1500 MPa |
| 630 / 17-4PH | UNS S17400 / 1.4542 | -40 to +315 deg C | 0.5-30 mm | 930-1310 MPa typical by aging condition |
| 631 / 17-7PH | UNS S17700 / 1.4568 | -240 to +300 deg C | 0.2-50 mm | 1000-1700 MPa typical spring temper |
| 632 / 15-7Mo | UNS S15700 / 1.4532 | -240 to +355 deg C | 0.2-50 mm | 1000-1700 MPa typical spring temper |
Stainless disc spring procurement notes
Requests for SUS631 disc spring wholesale, SUS631 disc spring factory, 17-7PH disc spring manufacturer or stainless steel disc spring supplier usually mean the buyer needs corrosion resistance without losing the spring behavior needed for load retention.
For 630, 631 and 632 precipitation-hardening stainless disc springs, useful RFQ data includes drawing or DIN size, working temperature, corrosion media, target load, deflection, expected cycle duty and whether the inquiry is for wholesale sourcing, factory supply or repeat purchasing.
When a standard stainless grade is not enough, nickel alloy or Hastelloy options can be reviewed before the geometry is frozen.
Related Technical Guides
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Read GuideEngineering Guide
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Learn when 17-7PH stainless disc springs are a strong choice for corrosion resistance, spring performance and fatigue life in industrial assemblies.
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Choose disc spring materials by operating temperature, preload retention, corrosion risk and service interval instead of relying on one catalog temperature number.
Read GuideFAQ Guide
What Affects Disc Spring Fatigue Life?
Review the main fatigue-life factors in disc springs, including working deflection, surface quality, stack design and material choice for cyclic industrial service.
Read GuideBuyer Guide
Custom Disc Spring RFQ from China
Check the RFQ details that matter when sourcing custom disc springs from China, including drawings, load, material, testing, tolerance and approval documents.
Read GuideSourcing Guide
Why Disc Spring Prices Differ
Understand why similar disc springs can carry different prices because of material traceability, heat treatment, load testing, tolerance and batch consistency.
Read GuideCommon Product Questions
When are stainless steel disc springs better than standard spring steel?
They become more attractive when corrosion resistance matters enough that ordinary spring steel would create maintenance, contamination or service-life risk.
Is 316 always the best stainless choice?
Not always. Some projects need precipitation-hardening grades like 17-7PH for a better balance between spring performance and environmental resistance.
Can stainless steel disc springs be used for DIN 2093 geometry?
Yes. Stainless disc springs can follow DIN 2093 geometry when the application needs corrosion resistance, but load, relaxation and fatigue should be checked against the selected stainless grade.