Kappa SS-CF

Test load

50 - 100 kN

Temperature range

+200 to +2000°C

Type of test

CF, LCF
CCG, CFCG
FCGR,TMF
SSRT
Creep
Stress relax
Tensile, compression, flexure

Standards

ISO 204
ASTM E139
EN 2002-005
ASTM E2714
ASTM E2760
European CoP for TMF

Description Advantages and features Technical overview High-temperature accessories Downloads Request a consultation

Kappa SS-CF for demanding tests, also under alternating load

This patented electromechanical fatigue testing machine with backlash-free zero crossing features a central lead screw and is ideal for force and strain controlled creep fatigue tests. The Kappa SS-CF provides extremely high flexibility, covers the complete range of creep testing applications at both ambient and high-temperature conditions.

Force and strain controlled creep fatigue tests with alternating load (through zero)
e.g. CF, LCF, CFCG and TMF tests
Advanced creep tests
- Fatigue tests with threshold and alternating load
- Strain modeling (e.g. determination of creep curve at different loads)
- Creep test with slow strain rates (SSRT)
- Creep data from components tests
Static and cyclic crack growth/widening test
Determination of hydrogen embrittlement
Tests with stepless force and temperature adjustment
Relaxation tests
Creep test up to break
- Creep rupture
- Stress rupture
Classic creep tests
Tensile, compression and flexure tests can also be performed with this testing machine
Creep test

The Kappa SS-CF in use

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High-temperature testing up to +2,000 °C

Customized high-temperature testing system for tensile, compression, flexure, creep fatigue and shear tests on ceramic matrix composites (CMC) at ultra-high temperatures up to +2,000°C in vacuum and inert gas environments.

Thermomechanical Fatigue Testing

Innovative testing solution for thermomechanical fatigue testing on turbine and motor materials according to the European Code of Practice, ISO 12111 and ASTM E2368.

Creep fatigue testing up to +1,200°C

This test solution is ideally suited for demanding creep fatigue tests (CF) under alternating load, to ASTM E2714, within elevated temperature ranges.

Hydrogen testing up to 200 bar

The Kappa SS-CF is ideal for tests on metallic hollow specimens under hydrogen pressure up to 200 bar. The testing system is suitable for tensile tests and creep tests and creep tests with slow strain rate (SSRT) tests to ISO 7039.

Advantages and features

Specific machine design

Specially designed and patented for fatigue tests
Load frame with play-free central lead screw drive and precision guidance provided via four steel columns for precise, axial loading
Adjustable crosshead enables maximum flexibility in test area height
High drive control frequency from 1000 Hz, which enables precise force and strain control for a large application range.
High-resolution force and travel measurement for optimum control properties, especially at very low test speeds
Precise loading speed with ±0.1% tolerance of the set speed in the measurement range of 1μm/h to 100 mm/min unloaded or under constant load
Precision testing machine to DIN EN ISO 7500-1

Axial alignment

Central lead screw for axial alignment to ASTM E292
Accessories: Fixed load spring for alternating tensile/compression loading with optimal alignment properties to ASTM E012
Option: Alignment fixture for axial alignment to ISO 23788:2012 and NADCAP requirements (± 5% flexural stress)

Intelligent electronics and software

Consistent workflow orientation reduces training needs to a minimum
Strain and force controlled load application (stepless/in blocks)
Selectable digital closed loop force, stress and strain controlled creep tests and stress relaxation tests, as well as user-defined load cycles
Easy operation during test performance and test result evaluation
Integrated temperature control of the high-temperature controller
Temperature control, recording and documentation prior to the test (heating phase)
Well designed data security concept

Technical overview

Test load F_max	50	50	kN
Test area
Height	1090 ¹	1290 ²	mm
Width	695 ³	695 ³	mm
Crosshead travel	200	200	mm
Load frame
Dimensions
Height	2038	2238	mm
Width	953	953	mm
Width with machine electronics	1178	1178	mm
Depth	900	900	mm
Weight
With machine electronics, approx.	1250	1280	kg
Drive
Crosshead speed v_min ... v_max	1 ... 250	1 ... 250	µm/h ... mm/min
Deviation from the set drive speed, max.	± 0.1⁴	± 0.1⁴	% of v_actual
Drive system travel resolution	0.136	0.136	nm
Crosshead return speed, max.	250	250	mm/min
Power input specifications
Supply voltage	230	230	VAC
Power consumption (full load), approx.		2.3

Maximum distance from the moving crosshead to the height-adjustable crosshead or base crosshead, without any accessories. This test area height is only suitable for CF applications.
Maximum distance from the moving crosshead to the height-adjustable crosshead or base crosshead, without any accessories. This test area height is suitable for all creep applications
Clearance between the lead screws
Measured over an interval of at least 5 s or 10 mm travel

Test load F_max	100	100	kN
Test area
Height	1090 ¹	1290 ²	mm
Width	695 ³	695 ³	mm
Crosshead travel	200	200	mm
Load frame
Dimensions
Height	2038	2238	mm
Width	953	953	mm
Width with machine electronics	1178	1178	mm
Depth	900	900	mm
Weight
With machine electronics, approx.	1250	1280	kg
Drive
Crosshead speed v_min ... v_max	1 ... 250	1 ... 250	µm/h ... mm/min
Deviation from the set drive speed, max.	± 0.1⁴	± 0.1⁴	% of v_actual
Drive system travel resolution	0.136	0.136	nm
Crosshead return speed, max.	250	250	mm/min
Power input specifications
Supply voltage	230	230	VAC
Power consumption (full load), approx.	2.3	2.3	kVA

Maximum distance from the moving crosshead to the height-adjustable crosshead or base crosshead, without any accessories. This test area height is only suitable for CF applications.
Maximum distance from the moving crosshead to the height-adjustable crosshead or base crosshead, without any accessories. This test area height is suitable for all creep applications
Clearance between the lead screws
Measured over an interval of at least 5 s or 10 mm travel

We will find the optimal solution for your creep test application. Please feel free to contact our experts.

We will be happy to discuss your needs.

Modular high-temperature accessories for creep testing machines

Accurate creep tests under defined temperature and environmental conditions is crucial for reliably determining the temperature-dependent elastic behavior, strength and yield point of high-temperature resistant materials. ZwickRoell equips creep testing machines with a wide range of modular high-temperature accessories, designed for testing in temperatures ranging from -80°C to 2,000°C.

The optimal combination of heating system, precise temperature control, suitable thermocouples, load strings and coordinated extensometers is the basis for reliable test results in creep testing.

Heating systems for test temperatures up to +2,000°C

A wide range of heating systems is available for creep testing systems to meet various standards and customer requirements. Get an overview of the possible alternatives:

	Temperature	Environment	Advantages
High-temperature furnace with 1, 2 or 3 heating zones	Up to +1,200°C Up to +1,400°C Up to +1,600°C	Air	Precise temperature distribution through individually controllable heating zones, with no overshooting Maximum flexibility through various slot opening sizes for thermocouples, extensometers and load string Optimal integration of optical and sensor arm extensometers Can be retrofitted
Induction heating system	Up to +1,200°C Higher temperatures are available upon request.	Air Vacuum Inert gas	Fast heating and cooling rates Individually adjustable heating power Optimized temperature distribution through specimen-specific inductors
Vacuum chamber	From +650°C Up to +2,000°C	Vacuum Inert gas	Wide application range at ultra-high temperatures Choice between vacuum and inert gas environment Precise strain measurement with optical or sensor arm extensometer up to maximum test temperature

High-temperature heating systems for Kappa SS- CF

Optical extensometer

The differentiating advantage of extensometers featuring non-contact measurement is that they can be used right up to break without risk of damage, even with specimens that are critical in this respect. Especially in an elevated temperature range, non-contact extensometers provide a defining advantage over contact extensometers, since the access to different heating systems can be sealed with view windows.

Applications for the video extensometer for high temperatures:

Long-term applications, tensile, compression and flexure tests, cyclic applications (< 2 Hz)
A variety of materials such as metals, refractory materials, ceramics
Temperature range: ambient temperature up to +1,400 °C

To videoXtens 1-32 HP/TZ

Contact extensometers

Contact extensometers for creep testing are available for tensile as well as compression and flexure tests. In addition to different accuracy classes and measurement ranges, extensometers for extended temperature ranges are also available. A distinction is made between side- and axial-attaching extensometers, which are suitable for special test types such as crack propagation testing. Depending on the specimen shape, different sensor arms are used.

Our engineers are happy to help you select the optimal system for your creep testing machine from our extensive portfolio of extensometers.

Contact-type extensometer

Contact extensometer for creep testing machine

Downloads

Product Information: Kappa SS-CF PDF 25 MB
- DE
- EN
Product Information: Kappa SS-CF for TMF PDF 3 MB
- DE
- EN
Brochure: Kappa SS-CF for TMF PDF 5 MB
- DE
- EN

Interesting customer projects

Ideal applications for Kappa SS- CF

Creep Test

to Creep Test

Metals | Thermomechanical fatigue (TMF)

ASTM E2368, ISO 12111

to Thermomechanical fatigue

Hydrogen | Materials testing under compressed hydrogen - hollow specimen technology

up to 200 bar

to Hollow specimen testing under compressed hydrogen

Hydrogen & metals | Hydrogen embrittlement of steel in coating process

ASTM F519

The ASTM F519 standard specifies a test method for mechanical hydrogen embrittlement evaluation of high-strength metallic materials.

to ASTM F519

Hydrogen & metals | Material failure due to hydrogen embrittlement

ASTM F1624

The ASTM F1624 standard describes an accelerated test method for determining the susceptibility of high-strength metallic materials to time-delayed failure due to hydrogen embrittlement.

to ASTM F1624