Ni-base alloys & special alloys

Our nickel and special alloys are used in a wide range of applications due to their unique combinations of properties.
The heat and corrosion resistance of our heating conductor materials, pure nickel and special alloys is essential for fail-safe components in power generation and the chemical and petrochemical industries, but also in household applications. Equally reliable and with defined physical properties, expansion and glass fusion alloys as well as resistance alloys are used in measurement technology, apparatus engineering and electrical engineering.


Special metallurgy for highest purity

According to the requirements of analysis and purity, the special grades are melted in the vacuum induction furnace (VIM) or in the electric arc furnace.
Subsequent electroslag remelting (ESR, PESR) or remelting under vacuum (VAR) specifically improves the purity of the material.
Also combination of these processes is possible in order to meet the highest requirements.

All standards

Chemical composition according to common standards such as ASTM/ASME, NACE, DIN EN or ISO
Full product range

From fine wire to steel bars as well as open die forged parts
Special analyses

Individually tailored to your needs

Materials and areas of application

Defined thermal expansion for exact processes

These nickel-iron alloys have a very small linear or almost constant coefficient of thermal expansion over a wide temperature range. This makes them perfectly suited for the transition between metal and glass or ceramics.

Applications include electrical components in sensor, measurement and energy technology.

BGH expansion alloys and glass sealing alloys

For reliable heat sources

Our heating conductor grades are particularly scale resistant and suitable for application temperatures up to 1300 °C.

The high specific electrical resistance of heatsealing band alloys leads to a controlled temperature rise when an electrical voltage is applied. The radiated heat can be used in a variety of ways - in industrial furnaces, heating devices such as instantaneous water heaters or cartridge heaters, in household goods, electric blankets or seat heaters.

BGH heating conductor materials

Materials for special applications

Mechanical strength even at high application temperatures, good creep rupture properties, resistance to corrosive media - these are all characteristics of these grades.

The materials achieve their properties through the addition of elements such as Mo, Wo, Ti, Nb in combination with high purity.

BGH heat- and corrosion-resistant materials can be found in a wide range of applications such as engine and exhaust technology, heat exchangers, fittings, in the petrochemical industry or in the offshore sector.

BGH heat resistant and corrosion resistant alloys

Highest purity

Rods and wires made of pure nickel have the best oxidation and corrosion resistance.

The range of applications is diverse and includes, for example, the manufacture of connections for heating elements or heating coils for spark plugs.

BGH pure nickel

Defined thermal expansion for exact processes

These nickel-iron alloys have a very small linear or almost constant coefficient of thermal expansion over a wide temperature range. This makes them perfectly suited for the transition between metal and glass or ceramics.

Applications include electrical components in sensor, measurement and energy technology.

BGH expansion alloys and glass sealing alloys

For reliable heat sources

Our heating conductor grades are particularly scale resistant and suitable for application temperatures up to 1300 °C.

The high specific electrical resistance of heatsealing band alloys leads to a controlled temperature rise when an electrical voltage is applied. The radiated heat can be used in a variety of ways - in industrial furnaces, heating devices such as instantaneous water heaters or cartridge heaters, in household goods, electric blankets or seat heaters.

BGH heating conductor materials

Materials for special applications

Mechanical strength even at high application temperatures, good creep rupture properties, resistance to corrosive media - these are all characteristics of these grades.

The materials achieve their properties through the addition of elements such as Mo, Wo, Ti, Nb in combination with high purity.

BGH heat- and corrosion-resistant materials can be found in a wide range of applications such as engine and exhaust technology, heat exchangers, fittings, in the petrochemical industry or in the offshore sector.

BGH heat resistant and corrosion resistant alloys

Highest purity

Rods and wires made of pure nickel have the best oxidation and corrosion resistance.

The range of applications is diverse and includes, for example, the manufacture of connections for heating elements or heating coils for spark plugs.

BGH pure nickel

Broschures

Wire and fine-wire made of FeCr- and NiCr-alloys

Expansion alloys & glass sealing alloys

1.3912 / Ni36 / K93601
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1.3917 / Ni42 / K94100
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1.3922 / Ni48 / K94800
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1.3981 / NiCo29-18 / K94610
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2.4472 / NiFe45
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2.4475 / NiFe46
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2.4478 / NiFe47 / N14052
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2.4486 / FeNi48Cr6 / K95150
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Heating conductor materials

1.4725 / CrAl14-4 / K91670
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Properties

CrAl 14 4 is a stainless ferritic iron-chromium-aluminium alloy with high resistivity and good oxidation resistance. It is magnetic up to approx. 600 °C.
After service between 400 - 550 °C and abcold embrittlement can occur.


Delivery Condition

  • annealed (+A)

Supply form: Wire (on spool up to 3mm, coils, casks)
Bright bars


Application area

Electrical applications and heat sources with operating temperatures up to 1000 °C1. Suitable for use in air, oxygen or in gases containing sulphur.


Typical applications

  • High-temperature load resistors
  • Braking resistors
  • Rheostats
  • Heating cables
  • Household applications

1Temperature valid for wire > 2 mm in air.


Data sheet

1.4765 / CrAl 25 5
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Properties

CrAl 25 5 is a stainless ferritic iron-chromium-aluminium alloy with high resistivity and good oxidation resistance. It is magnetic up to approx. 600 °C.


Delivery condition

  • annealed (+A)

Supply form: Wire (on spool up to 3mm, coils, casks)
Bright bars


Application area

Heating elements in high-temperature furnaces, ceramic kilns and radiant heaters with service temperatures up to 1400 °C.1 Suitable for exhaust gas treatment.


Typical applications

  • Heating elements for high-temperature furnaces
  • Radiant heaters

1Temperature valid for wire > 2 mm in air.


Data sheet

1.4767 / CrAl 20 5
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Properties

CrAl 20 5 is a stainless ferritic iron-chromium-aluminium alloy with high resistivity and good oxidation resistance. It is magnetic up to approx. 600 °C.
After service between 400 - 550 °C and above 1000 °C, cold embrittlement can occur.


Delivery condition

  • annealed (+A)

Supply form: Wire (on spool up to 3mm, coils, casks)
Bright bars


Application area

Heating elements in high-temperature furnaces and radiant heaters with service temperatures up to 1200 °C.1 Suitable for exhaust gas treatment.


Typical applications

  • Heating elements for high-temperature furnaces
  • Burner heads and covers
  • Heating tube elements
  • Radiant heaters
  • Ceran hobs
  • Carrier for catalysts (automotive)

1Temperature valid for wire > 2 mm in air.


Data sheet

1.4860 / NiCr 30 20
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Properties

NiCr 30 20 is a stainless austenitic iron-chromium-aluminium alloy with high resistivity, good high-temperature strength and oxidation resistance. NiCr 30 20 is non-magnetic.


Delivery condition

  • annealed (+A)

Supply form: Wire (on spool up to 3mm, coils, casks)
Bright bars, continuous cast billets.


Application area

Heating elements with service temperatures up to 1000 °C.1


Typical applications

  • Heating elements for electric furnaces
  • Convection and fan heaters
  • Heating cables
  • Seat heating
  • Deicing elements
  • Resistors

1Temperature valid for wire > 2 mm in air.


Data sheet

2.0842 / CuNi44Mn1 / CuNi44 / N04401 / C72150
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Properties

CuNi44 has a particularly small temperature coefficient of electrical resistance and is also known under the brand name constantan. The thermoelectric emf is high compared to Cu. The material is scale-resistant and resistant up to 600 °C to oxygen-containing and oxidising sulphurous gases and carburisation, among others.


Delivery condition

  • annealed (+A)

Supply form: Wire (on spool up to 3mm, coils, casks)
Bright bars


Application area

Electrical measuring instruments and low temperature heating elements with application temperatures up to 600 °C.


Typical applications

  • Precision and measuring resistors
  • Thermocouples
  • Heating wires and cables
  • Heating mats


Data sheet

2.4658 / NiCr70-30 / N06008
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Properties

2.4658 is an austenitic, high temperature resistant Ni-Cr alloy. The resistance to oxidising and reducing atmospheres is high, but limited in the presence of sulphurous gases. The material is very resistant to atmospheric corrosion.


Delivery condition

  • annealed (+A)
  • finally annealed
  • bright drawn

Supply form: Wire (on spool up to 3mm, coils, casks)
Bright bars


Application area

Heating elements for household applications and industrial furnaces as well as for furnace components with application temperatures up to 1200 °C.


Typical applications

  • Kitchen appliances (grills, toasters, hot plates)
  • Industrial furnace construction


Data sheet

2.4867 / NiCr 60 15 / Alloy 60 15 / N06004
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Properties

Alloy 60 15 is an austenitic, high-temperature resistant Ni-Fe-Cr-alloy. The material is characterized by high electrical resistivity in combination with good scaling resistance and dimensional stability. It retains its good ductility even after use. The grade offers excellent weldability.


Delivery condition

  • annealed (+A)
  • bright drawn

Supply form: Wire (on spool up to 3mm, coils, casks)
Bright bars


Application area

Heating elements for household appliances and industrial furnaces as well as furnace parts with application temperatures up to 1150 °C.1


Typical applications

  • Kitchen appliances (grills, toasters, hot plates)
  • White goods (tumble-dryers)
  • Electric tubular-flow heaters
  • Heavy-duty resistors
  • Industrial furnaces

1Temperature valid for wire > 2 mm in air.


Data sheet

2.4869 / NiCr 80 20 / Alloy 80 20 / N06003
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Properties

Alloy 80 20 is an austenitic, high-temperature resistant Ni-Cr alloy. It is resistant to oxidation and shows almost constant electrical properties within the entire application temperature range.


Delivery condition

  • annealed (+A)
  • bright drawn

Supply form: Wire (on spool up to 3mm, coils, casks)
Bright bars


Application area

Heating elements for industrial and domestic applications and furnace components with service temperature up to 1200 °C.1


Typical applications

  • High-power cartridge-type heaters
  • Heating for plastic mould dies
  • Soldering irons
  • Wire mesh conveyor belts
  • Control resistors
  • Wire-wound resistors

1Temperature valid for wire > 2 mm in air.


Data sheet

Heat resistant and corrosion resistant alloys

1.4864 / Alloy 330 / X12NiCrSi35-16 / N08330
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1.4876 / Alloy 800 / X10NiCrAlTi32-21 / N08800
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2.4360 / Alloy 400 / NiCu30Fe / N04400
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2.4375 / Alloy K500 / NiCu30Al / N05500
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2.4602 / Alloy C22 / NiCr21Mo14W / N06022
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2.4610 / Alloy C4 / NiMo16Cr16Ti / N06455
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2.4642 / Alloy 690 / NiCr29Fe
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2.4662 / Alloy 901 / NiCr13Mo6Ti3 / N09901
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2.4668 / Alloy 718 / NiCr19Fe19Nb5Mo3 / N07718
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2.4669 / Alloy X-750 / NiCr15Fe7TiAl / N07750
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2.4816 / Alloy 600 / NiCr15Fe / N06600
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2.4819 / Alloy C-276 / NiMo16Cr15W / N10276
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2.4851 / Alloy 601 / NiCr23Fe / N06601
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2.4852 / Alloy 925 / NiCr20FeMo3TiCuAl / N09925
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2.4856 / Alloy 625 / NiCr22Mo9Nb / N06625
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2.4858 / Alloy 825 / NiCr21Mo / N08825
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2.4951 / Alloy 75 / NiCr20Ti / N06075
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2.4952 / Alloy 80A / NiCr20TiAl / N07080
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Properties

Alloy 80A is a high-temperature resistant, precipitation hardenable Ni-Cr alloy.
High inner cleanliness is achieved using vacuum induction melting (VIM) and PESR-treatment.
The material shows excellent creep strength and resistance against thermal changes.
Alloy 80A is scaling resistant up to 1000 °C and resistant against corrosion in oxidizing media.


Delivery condition

  • solution annealed (+AT)
  • solution annealed and precipitation hardened (+AT +P)


Application area

Material for high mechanical loads at elevated temperatures up to 800 °C, e.g. steam generators, gas turbines and power plants.


Typical applications

  • Fasteners and bolting elements for high temperature applications
  • Components for gas turbines
  • Turbine blades
  • Turbochargers
  • Exhaust valves

Data sheet

Pure Nickel

2.4060 / Nickel / Ni99,6
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2.4066 / Alloy 200 / Ni99,2 / N02200
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2.4068 / Alloy 201 / Ni99 / N02201
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2.4110 / Alloy 212 / NiMn2 / N02212
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Expansion alloys & glass sealing alloys
Heating conductor materials
Heat resistant and corrosion resistant alloys
Pure Nickel
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