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Expansion K93603 / 4J28 Pipes Super Invar Alloy for Ultra Low Thermal Expansion and Precision Thermal Stability

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Expansion K93603 / 4J28 Pipes Super Invar Alloy for Ultra Low Thermal Expansion and Precision Thermal Stability

Adedi:	150kg
Fiyat:	Negotiatable
Standart ambalaj:	ahşap sandık
Teslim süresi:	2-30 gün
Ödeme yöntemi:	L/C,T/T,Western Union
Tedarik Kapasitesi:	ayda 300 ton

Ayrıntılı Bilgiler

Ürün Tanımı

Ayrıntılı Bilgiler

Menşe yeri

Marka adı

NikTech

Sertifika

ISO 9001:2015

Model numarası

Birincil kullanım:

Termal Genleşme Uygulamaları

Termal genleşme katsayısı:

Yüksek

Nikel bantları

Deneme Tesisi:

SGS gibi üçüncü taraf testlerini kabul edin

Uygulamalar:

Hassas cihazlarda, termostatlarda ve bimetalik şeritlerde kullanılır

Verim gücü:

240-450 MPa

Manyetik özellikler:

Manyetik olmayan veya zayıf manyetik

Isı İletkenliği:

10-20 w/mk

Ürün Tanımı

Expansion K93603 / 4J28 Pipes Ultra Low Expansion Alloy

Expansion K93603 / 4J28 Pipes are precision iron-nickel-cobalt alloy pipes engineered for applications where extremely low thermal expansion is critical. Known internationally as Super Invar Alloy, this material was developed to achieve significantly lower dimensional change than conventional Invar alloys during temperature fluctuations.

The addition of cobalt optimizes the crystal structure and reduces thermal expansion across a practical operating temperature range, making Expansion K93603 / 4J28 Pipes an ideal choice for precision engineering systems. These pipes are widely utilized in aerospace tooling, optical platforms, metrology equipment, semiconductor production systems, and scientific instrumentation where dimensional accuracy directly influences performance.

Specifications

Parameter	Value
Outside Diameter	6 mm - 168 mm
Wall Thickness	0.5 mm - 15 mm
Length	Up to 6000 mm
Surface	Bright Annealed, Pickled
Form	Seamless Pipe / Welded Pipe
Standards	ASTM F1684, UNS K93603, GB/T 15002

Chemical Composition

Element	Content (%)
Nickel (Ni)	31.5 - 33.0
Cobalt (Co)	4.0 - 6.0
Iron (Fe)	Balance
Carbon (C)	≤ 0.05
Manganese (Mn)	≤ 0.50
Silicon (Si)	≤ 0.30
Phosphorus (P)	≤ 0.02
Sulfur (S)	≤ 0.02

Mechanical Properties

Property	Value
Tensile Strength	≥ 490 MPa
Yield Strength	≥ 240 MPa
Elongation	≥ 30%
Hardness	≤ 160 HB

Physical Properties

Property	Value
Density	8.15 g/cm³
Melting Range	1425 - 1450°C
Thermal Conductivity	13.5 W/m*K
Elastic Modulus	141 GPa
Electrical Resistivity	0.78 µΩ*m
Mean Coefficient of Thermal Expansion (20-100°C)	Approx. 0.6 × 10⁻⁶/K

Key Features

Extremely low thermal expansion coefficient
Excellent dimensional stability during temperature changes
Suitable for ultra-precision engineering systems
Good machinability and fabrication performance
Reliable behavior under repeated thermal cycling
Ideal for optical, aerospace, and metrology applications

Applications

Precision Measuring Equipment: Used in metrology frames, calibration systems, and coordinate measuring devices.

Aerospace Tooling: Applied in precision fixtures and thermal-stable aerospace structures.

Optical Systems: Suitable for telescope supports, laser equipment, and optical alignment assemblies.

Semiconductor Manufacturing: Used in wafer processing equipment and precision positioning systems.

Scientific Instrumentation: Applied in vacuum devices and laboratory equipment requiring dimensional stability.

Frequently Asked Questions

What is the main advantage of Expansion K93603 / 4J28 Pipes?

Their ultra-low thermal expansion coefficient helps maintain dimensional accuracy under temperature variation.

Are Expansion K93603 / 4J28 Pipes the same as Super Invar?

Yes. UNS K93603 is internationally known as Super Invar Alloy and corresponds closely to Chinese grade 4J28.

Where are Expansion K93603 / 4J28 Pipes commonly used?

They are widely used in aerospace, optics, semiconductor manufacturing, metrology, and scientific equipment.

Can Expansion K93603 / 4J28 Pipes be machined?

Yes. The alloy offers good machinability for precision components and assemblies.

Why are Expansion K93603 / 4J28 Pipes used in measurement systems?

Because they minimize dimensional changes caused by temperature fluctuations, improving measurement accuracy.

Surface & Delivery Options

Surface: bright annealed, pickled
Form: seamless pipe, welded pipe
Packaging: moisture-proof wrapping with reinforced export wooden cases

Etiketler:

genişleme alaşımları,

Süper invar,

Invar çelik

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Ürün ayrıntıları

Ürünler

Monel Alaşım

Inconel Alaşım

Direnç alaşımı

Genişleme Alaşımları

Kolonya Alaşımı

Hastelloy Alaşımı

Kobalt Alaşımı

Yumuşak manyetik alaşım

saf nikel

Paslanmaz çelik

Soy metal

Nikel Bazlı Kaynak Ürünleri

Yüksek Sıcaklık Alaşımı

Diğerleri

Berilyum bakır alaşımı

Nikel Köpük

Expansion K93603 / 4J28 Pipes Super Invar Alloy for Ultra Low Thermal Expansion and Precision Thermal Stability

Adedi:	150kg
Fiyat:	Negotiatable
Standart ambalaj:	ahşap sandık
Teslim süresi:	2-30 gün
Ödeme yöntemi:	L/C,T/T,Western Union
Tedarik Kapasitesi:	ayda 300 ton

Ayrıntılı Bilgiler

Ürün Tanımı

Ayrıntılı Bilgiler

Menşe yeri

Çin

Marka adı

NikTech

Sertifika

ISO 9001:2015

Model numarası

4J28

Birincil kullanım:

Termal Genleşme Uygulamaları

Termal genleşme katsayısı:

Yüksek

tip:

Nikel bantları

Deneme Tesisi:

SGS gibi üçüncü taraf testlerini kabul edin

Uygulamalar:

Hassas cihazlarda, termostatlarda ve bimetalik şeritlerde kullanılır

Verim gücü:

240-450 MPa

Manyetik özellikler:

Manyetik olmayan veya zayıf manyetik

Isı İletkenliği:

10-20 w/mk

Min sipariş miktarı:

150kg

Fiyat:

Negotiatable

Ambalaj bilgileri:

ahşap sandık

Teslim süresi:

2-30 gün

Ödeme koşulları:

L/C,T/T,Western Union

Yetenek temini:

ayda 300 ton

Ürün Tanımı

Expansion K93603 / 4J28 Pipes Ultra Low Expansion Alloy

Specifications

Parameter	Value
Outside Diameter	6 mm - 168 mm
Wall Thickness	0.5 mm - 15 mm
Length	Up to 6000 mm
Surface	Bright Annealed, Pickled
Form	Seamless Pipe / Welded Pipe
Standards	ASTM F1684, UNS K93603, GB/T 15002

Chemical Composition

Element	Content (%)
Nickel (Ni)	31.5 - 33.0
Cobalt (Co)	4.0 - 6.0
Iron (Fe)	Balance
Carbon (C)	≤ 0.05
Manganese (Mn)	≤ 0.50
Silicon (Si)	≤ 0.30
Phosphorus (P)	≤ 0.02
Sulfur (S)	≤ 0.02

Mechanical Properties

Property	Value
Tensile Strength	≥ 490 MPa
Yield Strength	≥ 240 MPa
Elongation	≥ 30%
Hardness	≤ 160 HB

Physical Properties

Property	Value
Density	8.15 g/cm³
Melting Range	1425 - 1450°C
Thermal Conductivity	13.5 W/m*K
Elastic Modulus	141 GPa
Electrical Resistivity	0.78 µΩ*m
Mean Coefficient of Thermal Expansion (20-100°C)	Approx. 0.6 × 10⁻⁶/K

Key Features

Extremely low thermal expansion coefficient
Excellent dimensional stability during temperature changes
Suitable for ultra-precision engineering systems
Good machinability and fabrication performance
Reliable behavior under repeated thermal cycling
Ideal for optical, aerospace, and metrology applications

Applications

Precision Measuring Equipment: Used in metrology frames, calibration systems, and coordinate measuring devices.

Aerospace Tooling: Applied in precision fixtures and thermal-stable aerospace structures.

Optical Systems: Suitable for telescope supports, laser equipment, and optical alignment assemblies.

Semiconductor Manufacturing: Used in wafer processing equipment and precision positioning systems.

Scientific Instrumentation: Applied in vacuum devices and laboratory equipment requiring dimensional stability.

Frequently Asked Questions

What is the main advantage of Expansion K93603 / 4J28 Pipes?

Their ultra-low thermal expansion coefficient helps maintain dimensional accuracy under temperature variation.

Are Expansion K93603 / 4J28 Pipes the same as Super Invar?

Yes. UNS K93603 is internationally known as Super Invar Alloy and corresponds closely to Chinese grade 4J28.

Where are Expansion K93603 / 4J28 Pipes commonly used?

They are widely used in aerospace, optics, semiconductor manufacturing, metrology, and scientific equipment.

Can Expansion K93603 / 4J28 Pipes be machined?

Yes. The alloy offers good machinability for precision components and assemblies.

Why are Expansion K93603 / 4J28 Pipes used in measurement systems?

Because they minimize dimensional changes caused by temperature fluctuations, improving measurement accuracy.

Surface & Delivery Options

Surface: bright annealed, pickled
Form: seamless pipe, welded pipe
Packaging: moisture-proof wrapping with reinforced export wooden cases

Etiketler: