Standards Guide
DIN 2093 Dimensions and Group Selection
Review how DIN 2093 dimensions and group logic influence fatigue suitability, load density and sourcing decisions for disc springs.
Read GuideHeat Resistance Disc Springs
High temperature disc springs and heat resistant Belleville washers for thermal equipment, valves and power systems.
Engineered for Reliable Load Control
High temperature disc springs and heat resistant Belleville washers for thermal equipment, valves and power systems.
- DIN 2093 force and deflection data
- Heat-stable steel and nickel alloy options
- Reviewed for retained load, not only short peak temperature
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 heat-resistant disc spring geometry from OD 6-1000 mm with engineered stack options.
Materials
30W4Cr2V, 2Cr12MoV, SKD61 / H13 / 1.2344, 8407 Supreme, Inconel X-750 and cobalt alloy S816.
Temperature Range
-200 deg C to +815 deg C depending on steel, nickel or cobalt alloy selection.
Recommended Applications
- Power plant steam valves
- Furnace and thermal equipment
- High-temperature bolting
- Energy and process industry assemblies
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
SKD61 / H13 hot-work steel
Material path from hot-work steel to Inconel or Nimonic
High-Temperature Geometry Examples
| Part no. | Load class | De (mm) | Di (mm) | t (mm) | h0 (mm) | l0 (mm) | Load at 75% h0 (N) |
|---|---|---|---|---|---|---|---|
| FT100040 | B | 16 | 8.2 | 0.6 | 0.45 | 1.05 | 410 |
| FT100062 | B | 20 | 10.2 | 0.8 | 0.55 | 1.35 | 748 |
| FT100123 | B | 40 | 20.4 | 1.5 | 1.15 | 2.65 | 2618 |
| FT100145 | B | 56 | 28.5 | 2 | 1.6 | 3.6 | 4438 |
| FT100242 | - | 250 | 127 | 16 | 5.8 | 21.8 | 383000 |
Final material and stack design should be matched to service temperature, load loss limits and cycle life.
Heat-Resistant Material Options
| Grade | Equivalent designation | Temperature range | Thickness range | Tensile strength |
|---|---|---|---|---|
| 30W4Cr2V | X30WCrV5-3 | -50 to +450 deg C | 1.5-50 mm | 1200-1400 MPa |
| 2Cr12MoV | X22CrMoV12-1 / 1.4923 | -50 to +500 deg C | 1.5-20 mm | 1200-1400 MPa |
| SKD61 | JIS SKD61 / AISI H13 / 1.2344 | -50 to +600 deg C | 1.5-50 mm | 1100-1740 MPa typical quenched and tempered |
| 8407 Supreme | ESR hot-work tool steel / H13 family | -50 to +600 deg C | 1.5-50 mm | 1200-1850 MPa typical by hardness condition |
| Inconel X-750 | NiCr15Fe7TiAl / 2.4669 | -200 to +600 deg C | 0.1-50 mm | >=170 MPa |
| S816 | Cobalt alloy | -200 to +815 deg C | 0.1-50 mm | >=320 MPa |
High-temperature disc spring sourcing notes
High temperature disc spring supplier and heat resistant Belleville washer RFQs usually need retained load after heat exposure, not only a material that survives the peak temperature.
Useful RFQ inputs include normal and peak temperature, hold time under load, target preload, working deflection, cycle duty, atmosphere or media and whether the part is used in a valve, furnace, power plant or bolted joint.
SKD61, H13 and 8407 Supreme can be reviewed for hot-work steel service, while Inconel, Hastelloy or Nimonic grades are better candidates when corrosion, creep or shutdown consequence becomes critical.
Related Technical Guides
Reliability Guide
Disc Spring Preload Loss and Stress Relaxation
Understand why preload loss happens in disc spring assemblies and how temperature, settlement and material choice influence long-term load retention.
Read GuideMaterial Guide
Custom Alloy 718 / Inconel 718 Disc Springs for HPHT Service
See when custom Alloy 718 springs, Inconel 718 disc springs and Belleville washers make sense for HPHT, valve, offshore and elevated-temperature preload service.
Read GuideHeat-Resistant Steel Guide
SKD61 and 8407 Supreme Heat-Resistant Disc Springs
Understand how SKD61, H13 and 8407 Supreme hot-work steels are reviewed for heat-resistant disc springs in high-temperature industrial assemblies.
Read GuideNickel Alloy Guide
Nickel Alloy Disc Spring RFQ Guide
Compare custom Alloy 718 springs, Inconel 625, Inconel X-750 and Nimonic 90 disc springs for US supplier RFQs, HPHT valves and offshore service.
Read GuideEngineering Guide
Disc Spring Material Selection
Compare spring steel, stainless steel and nickel alloy options for disc springs based on corrosion, temperature, fatigue and industrial application priorities.
Read GuideIndustry Guide
Disc Springs for Power Plants
Explore how disc springs are used in power plant bolting, valves and auxiliary equipment where thermal cycling, preload retention and maintenance intervals matter.
Read GuideFAQ Guide
Disc Spring Temperature Ranges Explained
Choose disc spring materials by operating temperature, preload retention, corrosion risk and service interval instead of relying on one catalog temperature number.
Read GuideBuyer FAQ
Spring Steel vs Inconel Belleville Washers
Compare standard spring steel and Inconel Belleville washers for temperature, corrosion, preload retention and commercial fit in industrial applications.
Read GuideNickel Alloy Comparison
Inconel 718 vs X-750 Disc Springs | HPHT Valve RFQ Guide
Compare Inconel 718 disc springs, custom Alloy 718 springs and Inconel X-750 Belleville washers for US HPHT valve, offshore and high-temperature RFQs.
Read GuideCommon Product Questions
What matters most in a high-temperature disc spring selection?
The key issue is usually retained load over the service interval, not just whether the spring can survive a short peak temperature.
How do I know whether heat-resistant steel is enough?
That decision depends on temperature band, exposure time, maintenance interval and whether the joint can tolerate preload loss before shutdown or leakage becomes a problem.
When should a high temperature disc spring move from H13 or SKD61 to Inconel?
Inconel should be reviewed when temperature, relaxation margin, corrosion media or service consequence makes hot-work steel too close to its practical limit.
Is a high-temperature disc spring selected only by maximum temperature?
No. The better question is how much load the spring must still hold after heat exposure, vibration, corrosion and the planned maintenance interval. Two projects with the same peak temperature can need different materials.