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iron-chromium alloy 4J28
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iron-chromium alloy 4J28

The precision alloy mainly applies to electrical component, hard glass, soft glass, glassy-closure alloy of ceramic match sealing, soft magnetic alloy, elastic alloy, including iron, nickel, cobalt alloy 4J29, iron-chromium alloy 4J28 , iron-nickel alloy 1J36, 1J50, 1J79, 1J80, 3J9, 4J42, 4J50 etc.. The product specifications include silk, belt, pipe, sheet and rod materials. The smelting process of the alloy is undertaken in the non-vacuum induction furnace and vacuum induction furnace, the other smelting methods which can meet the requirements also can be used.

Chemical composition

Grade

Chemical composition %

Remarks

C

P

S

Mn

Si

Cu

Cr

Mo

Ni

Co

Fe

The chemical composition

 is allowed to

deviate from the

 standard requirements

when the alloy magnetic

 is in line with the standard.

1J36

≤0.03

≤0.020

≤0.02

≤0.06

≤0.20

/

35.0-37.0

The remaining amount

1J50

≤0.03

≤0.020

≤0.02

0.30-0.60

0.15-0.30

≤0.20

/

/

49.0-50.5

/

The remaining amount

1J79

≤0.03

≤0.020

≤0.02

0.60-1.10

0.30-0.50

≤0.20

3.80-4.10

78.5-80.0

The remaining amount

1J80

≤0.03

≤0.020

≤0.02

0.60-1.10

1.10-1.50

≤0.20

2.60-3.00

/

79.0-81.5

/

The remaining amount

3J9

0.02-0.26

≤0.030

≤0.02

1.80-2.20

1.3-1.70

19.0-20.5

1.60-1.85

9.0-10.5

The remaining amount

4J29

≤0.03

≤0.02

≤0.02

≤0.50

≤0.30

≤0.20

≤0.20

≤0.20

28.5-29.5

16.8-17.8

The remaining amount

4J28

≤0.12

≤0.02

≤0.02

≤1.00

≤0.90

27.0-29.0

≤0.50

The remaining amount

N≤0.02

4J42

≤0.05

≤0.02

≤0.02

≤0.80

≤0.30

41.5-42.5

≤1.0

The remaining amount

Al≤0.10

4J50

≤0.05

≤0.02

≤0.02

≤0.80

≤0.30

49.5-50.5

The remaining amount

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our export country

We are a well known worldwide supply and export Precision alloy in following countries:,Italy, Philippines, France,Ireland, Portugal, Gambia, Thailand, Ukraine, United Kingdom, Netherlands, South Africa, Spain, Turkey, Libya, Romania, Puerto Rico, Azerbaijan, United Arab Emirates, Pakistan, Ghana, Slovakia, Germany, Saudi Arabia, Afghanistan, Bolivia, Switzerland, Bangladesh, Taiwan, Oman, Egypt, Greece, Norway, Singapore, Bulgaria, Estonia, Belgium, Yemen, Hong Kong, Ecuador, Sri Lanka, Nepal, Belarus, Finland, Gabon, Iran, Canada, Argentina, Lebanon.

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