4J50|Kaixin Alloy Materials Co., Ltd.-specializes in high-temperature alloys-corrosion-resistant alloys-expansion alloys-pure nickel alloys and other strips-wires-rods

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Danyang Kaixin Alloy Material Co., Ltd.

4J50

Product properties:

Brand: KX-Alloy

Similar grades：50H,FeNi 50,Nilo 51,NS-1,N50,Vacodil 500

Certification certificate：ISO9001:2015

Place of Origin: Danyang, Jiangsu, China

Product Description

Alloy Category：Expansion alloy

Substrate shape: wire/strip/rod/pipe/plate

Alloy series:nickalloy

Implementation standards：ASTM

Applications: Aerospace, petrochemical, industrial, energy

Product description and application

The alloy 4j50 has good comprehensive properties in the temperature range of -253 ~ 700℃, the yield strength below 650℃ ranks first in the deformation superalloy, and has good performance, processing performance, welding performance. It can manufacture various parts with complex shapes, and has been widely used in the above temperature range in aerospace, nuclear energy, petroleum industry and extrusion molds.

4J50Composition content

Ni：49.5%~50.5%

Fe：48.21%~49.21%

Mn≤0.80%

Si≤0.30%

AI≤0.10%

C≤0.05%

S≤0.02%

P≤0.02%

Vacuum induction furnace

Electroslag remelting

Product physical properties

Density

ρ=8.21 g/cm³

Fusing point

1430℃

Mechanical properties

Thickness/mm	HV	Designation	Status	σb/MPa
<2.5	≤165	S	Soft state	<590
≤2.5	≤170	I	Hard state	>700

Average linear expansion coefficient of the alloy:

Average linear expansion coefficient of the alloy:	Sample heat treatment regime	Average linear expansion coefficient α（10^-6/ K）
		20～ 300°C	20～ 400 °C
4J50	It is heated to 900±20℃ in a hydrogen atmosphere, held for 1h, and cooled to 200℃ or less at a speed of no more than 5℃/ min	9.2～ 10.0	9.2～ 9.9

Typical expansion coefficient of 4J50 alloy:

Alloy designation	Average linear expansion coefficient α（10^-6/ K）
	Average linear expansion coefficient α（10^-6/ K）
	20-100℃	20-100℃	20-300℃	20-400℃	20-450℃	20-500℃	20-600℃
4J50	9.8	9.8	9.5	9.4	-	9.7	10.6

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Application scenario

Petrochemical industry

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