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Technical information sheets
- 1.0338 - DC04
- 1.1248 - C75S soft
- 1.1274 - C100S
- 1.2003 - 75Cr1
- 1.2379
- 1.3912 - Alloy I
- 1.3981 - Alloy K
- 1.4031Mo
- 1.4021 – 1.4034 – 1.4037
- 1.4301
- 1.4310
- 1.4404
- 1.4529
- 1.4767 - heat resistant
- 1.4828 - heat resistant
- 2.0070 - Copper
- 2.0321 - Brass
- 2.1020 - Bronze
- 2.4068 - Nickel
- 2.4545 - Alloy Mu
- 2.4668 - Alloy 718
- 3.0205 - Alu
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Cold-rolled strips Material no. 1.3981 = Alloy K
1. Application examples
Since the material 1.3981 = Alloy K has a thermal expansion coefficient similar to that of borosilicate glass and aluminum ceramics, it is ideal for sealing between these materials and other components, even over a wide temperature range.
The material is not suitable as a spring material.
Since the material 1.3981 = Alloy K has a thermal expansion coefficient similar to that of borosilicate glass and aluminum ceramics, it is ideal for sealing between these materials and other components, even over a wide temperature range.
The material is not suitable as a spring material.
2. Material codes
German Norm: 1.3981 Alloy K, FeNi29Co18Mn
AISI:
UNS: K 94610
English Norm: BS N
French Norm:
Japanese Norm:
3. Alloy Composition *
Ni: ca. 29%
C: < 0,01%
Fe: Rest
Mn: ca. 0,3%
Si: ca. 0,2%
Co: ca. 17%
* the exact composition of each batch can be documented by a material certificate 2.2 or 3.1 according to DIN EN 10 204.
4. Delivery condition
Condition: cold rolled, geglüht, tiefziehfähig, not hardenable
Surface: blank
Ultimate tensile strength: ca. 500-600 N/mm²
Weitere mechanische und physikalische Daten: siehe Abschnitte 7 und 8.
5. Sizes
thicknesses: 0,10 bis 0,50 mm
raw material width: depending on the thicknesses
standard widths: ca. 305-340mm
edges: cut
Lengths: variable lengths from 5 to 10 000 mm or as Coil
German Norm: 1.3981 Alloy K, FeNi29Co18Mn
AISI:
UNS: K 94610
English Norm: BS N
French Norm:
Japanese Norm:
3. Alloy Composition *
Ni: ca. 29%
C: < 0,01%
Fe: Rest
Mn: ca. 0,3%
Si: ca. 0,2%
Co: ca. 17%
* the exact composition of each batch can be documented by a material certificate 2.2 or 3.1 according to DIN EN 10 204.
4. Delivery condition
Condition: cold rolled, geglüht, tiefziehfähig, not hardenable
Surface: blank
Ultimate tensile strength: ca. 500-600 N/mm²
Weitere mechanische und physikalische Daten: siehe Abschnitte 7 und 8.
5. Sizes
thicknesses: 0,10 bis 0,50 mm
raw material width: depending on the thicknesses
standard widths: ca. 305-340mm
edges: cut
Lengths: variable lengths from 5 to 10 000 mm or as Coil
6. Tolerances
thickness tolerace: 10% of the thickness
width tolerance: according to DIN EN
straightness: normal
flatness: wave height max. 1mm
7. Further mechanical data
Yield strength Rp0,2 : ca. 360-400 N/mm²
Dehnung A 50: ca. 25-35%
The Curie-Temperature is 436° Celsius.
Further information are given in chapter 15.
8. Physical properties:
Density: 8,36 g/cm³
Thermal conductivity: 17,3 W/(m °C) depending on the temperature
Heat capacity: J/(kg °C) medium value at 50 – 100 °C
Thermal expansion: 4,9 x 10 -6 (between 30 - 400 °C
Electric resistance: 49 µOhm x cm depending on the temperature
Modus of elasticity: 139 000 MPa at 20 °C
Poisson-Verhältnis: 0,317
Relative permeability μr: magnetism is measurable
9. Blanking
We recommend a punch-to-die clearance of 4-10 % of the strip thickness.
The corner radius should be at least 0.25 mm and the punching die should be at least twice the strip thickness.
10. Laser cutting
This alloy can be laser cut without problems.
11. Photo etching
This alloy is very easy to etch.
12. Bending
In the annealed condition this alloy can be used for deep drawing parts due to a high content Nickel.
In the case of strong deformations, itermediate annealing should be made.
13. Flat grinding
The alloy 1.3981 is magnetic and can be fixed by magnetic clamping devices of flat grinding machines.
14. Welding
The alloy 1.3981 can be welded easily.
15. Corrosion resistance
This alloy is corrosion resistant at normal room air, without high humidity.
Corrosion on the surface can occur in humid environments.
Important Annotation
The specifications which are given in this technical information sheet about the condition and application of the alloys are only for reference and are no confirmation about certain performances and characteristics.
The information correspond to our own experiences and experiences of our suppliers. We can not guarantee for the results during processing and utilisation.
thickness tolerace: 10% of the thickness
width tolerance: according to DIN EN
straightness: normal
flatness: wave height max. 1mm
7. Further mechanical data
Yield strength Rp0,2 : ca. 360-400 N/mm²
Dehnung A 50: ca. 25-35%
The Curie-Temperature is 436° Celsius.
Further information are given in chapter 15.
8. Physical properties:
Density: 8,36 g/cm³
Thermal conductivity: 17,3 W/(m °C) depending on the temperature
Heat capacity: J/(kg °C) medium value at 50 – 100 °C
Thermal expansion: 4,9 x 10 -6 (between 30 - 400 °C
Electric resistance: 49 µOhm x cm depending on the temperature
Modus of elasticity: 139 000 MPa at 20 °C
Poisson-Verhältnis: 0,317
Relative permeability μr: magnetism is measurable
9. Blanking
We recommend a punch-to-die clearance of 4-10 % of the strip thickness.
The corner radius should be at least 0.25 mm and the punching die should be at least twice the strip thickness.
10. Laser cutting
This alloy can be laser cut without problems.
11. Photo etching
This alloy is very easy to etch.
12. Bending
In the annealed condition this alloy can be used for deep drawing parts due to a high content Nickel.
In the case of strong deformations, itermediate annealing should be made.
13. Flat grinding
The alloy 1.3981 is magnetic and can be fixed by magnetic clamping devices of flat grinding machines.
14. Welding
The alloy 1.3981 can be welded easily.
15. Corrosion resistance
This alloy is corrosion resistant at normal room air, without high humidity.
Corrosion on the surface can occur in humid environments.
Important Annotation
The specifications which are given in this technical information sheet about the condition and application of the alloys are only for reference and are no confirmation about certain performances and characteristics.
The information correspond to our own experiences and experiences of our suppliers. We can not guarantee for the results during processing and utilisation.