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4J34 Controlled Expansion Alloys per YB/T 5234-1993 Porcelain Sealed
4J34 Controlled Expansion Alloys per YB/T 5234-1993 Porcelain Sealed
4J34 Controlled Expansion Alloys per YB/T 5234-1993 Porcelain Sealed
4J34 Controlled Expansion Alloys per YB/T 5234-1993 Porcelain Sealed
4J34 Controlled Expansion Alloys per YB/T 5234-1993 Porcelain Sealed
4J34 Controlled Expansion Alloys per YB/T 5234-1993 Porcelain Sealed
Specifications
Brand Name :
XUNSHI
Model Number :
4J34
Certification :
ISO9001
Place of Origin :
China
MOQ :
50kg
Price :
Negotiable
Payment Terms :
T/T
Supply Ability :
500kg per week
Delivery Time :
30-35 days
Packaging Details :
Plywood case
Equal grade :
Ceramvar, Vacon20
Forms of supply :
Bar, forging, tube, plate, strip
Density :
8.29
Resistance rate :
0.45 μΩ·m
Curie point :
470°C
Product Name :
Controlled Expansion Alloys
Description

4J34 Porcelain Sealed Controlled Expansion Alloy per YB/T 5234-1993

4J34 is a ceramic sealing alloy developed in combination with the characteristics of China's ceramics. 4J33 ceramic sealing alloy is mainly used for matching sealing with ceramics. It is an important sealing structure material in electric vacuum industry.

4J34 alloy has a linear expansion coefficient similar to that of 95%Al2O3 ceramics in the temperature range of -60~600 C.

Curie temperature: 470 degrees C

The alloy has good cold and hot processing properties, and can be made into various complicated parts. Do not heat the material in a sulphur atmosphere.

Before sealing with ceramics, the parts should be annealed, cleaned, nickel-plated, and then welded with silver to the ceramics after metallization.

4J34 has good electroplating properties, and the surface can be plated with gold, silver, nickel, chromium and other metals.

The cutting and processing properties of 4J33 are similar to those of austenitic stainless steels. High speed steel or carbide tools are used for processing. Low speed machining. Coolant can be used in cutting.

4J34 has good grinding performance.

Chemical composition

Grade C Mn Si P S Ni Co Fe
≤
4J33 0.05 0.50 0.30 0.020 0.020 32.0~33.6 14.0~15.2 Rem
4J34 0.05 0.50 0.30 0.020 0.020 28.5~29.5 19.5~20.5 Rem

Spec YB/T 5234-1993 Porcelain Sealed Alloys 4J33 4J34 Technical Requirements

Product tags

annealing stainless steel 316

,

low expansion alloys

,

38 46t ceramic rings
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4J34 Controlled Expansion Alloys per YB/T 5234-1993 Porcelain Sealed

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Product Detail
Brand Name :
XUNSHI
Model Number :
4J34
Certification :
ISO9001
Place of Origin :
China
MOQ :
50kg
Price :
Negotiable
Contact Supplier
4J34 Controlled Expansion Alloys per YB/T 5234-1993 Porcelain Sealed
4J34 Controlled Expansion Alloys per YB/T 5234-1993 Porcelain Sealed
4J34 Controlled Expansion Alloys per YB/T 5234-1993 Porcelain Sealed

Suzhou Xunshi New Material Co., Ltd

Verified Supplier
8 Years
jiangsu
Since 2015
Business Type :
Manufacturer
Main Products :
Nickel Cobalt Alloy, Inconel Nickel Alloy, Soft Magnetic Alloys
Total Annual :
1000-1200
Employee Number :
100~120
Certification Level :
Verified Supplier
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