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Maraging Steel C250 1.6359 Aged Harden Steel

Maraging steel 250 steel(MDN250), melted as VIM + VAR , Type IV( solution treated)Standard in accordance with UT testing AMS -2154 Type II , Class A or other equivalent standard....

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Maraging 250 is an age harden iron-nickel steel alloy, know as DIN 1.6359, MDN250, C250 melted as VIM + VAR with ultra high strength and toughness. This steel material is easily machinable in the annealed condition prior to final heat treatment. Grade has improved fracture toughness from Maraging 300 series but slightly less strength. The unique properties makes it suitable for many critical aerospace applications.


Chemical composition:

C250

C

Si

Mn

P

S

Al

Co

Cr

Cu

Mo

Ni

Ti

Min

0。05

7.0

4。6

17。0

0.30

Max

0。03

0.10

0.10

0.01

0.01

0.15

8.5

0。50

0。50

5。2

19。0

0.60


MECHANICAL PROPERTY

unit

value

Yield strength

N/mm2

640 min。

Ultimate strength

N/mm2

From 930 to 1150

Elongation(A5)

12 min.

Reduction of Area

60 min。

Hardness

HB

353 max.


Grain size: six or finer。


Inclusion content:

Type

A

B

C

D

E

Thin

1。5

1.5

1.5

2。0

3.0

Heavy

1.0

1.0

1。0

1.5

1。5


e. Surface roughness: Ra≤0.8 in Longitudinal direction

Ra≤0。8 in Transversal direction


Condition of delivery:

Solution Annealed state

Form of Maraging steel 1.6359


Rings/ Solid Round / Square / Flat Bars, Plates, Sheets, Blocks/Welding Wires


APPLICATION

●Rocket motor casings

●Light aircraft landing gear

●Power shafts

●Low temperature tooling


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