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inconel x750 spring
Nov 06, 2016

We are leading manufacturer and stockist of inconel x750 spring in China.

 

  inconel x750 spring Technical Data Sheet

 

  inconel x750 spring Chemical Composition Limits

Weight %

Ni +(Co)

Cr

Fe

Ti

Al

Nb + (Ta)

Mn

Si

S

Cu

C

Co

X-750
UNS N07750

70 min

14-17

5-9

2.25-2.75

0.40-1.0

0.70-1.2

1 max

0.50 max

0.01 max

0.50 max

0.08 max

1 max

UNS N07752 is available in billets for forging. UNS N0772 has limits of 0.05% on both Carbon and Cobalt

inconel x750 spring is a nickel-chromium alloy which has been made precipitation-hardenable by the additions of aluminum and titanium.  inconel x750 spring has good resistance to corrosion and oxidation along with high tensile and creep rupture properties at temperature up to 1300oF (700oC). Due to X-750's excellent relaxation resistance it is useful for applications as high-temperature springs and bolts, X-750 is also used in gas turbines, rocket engines, nuclear reactors, pressure vessels, tooling and aircraft structures.

 

inconel x750 spring Mechanical Properties

Material

Size

Ultimate
Tensile Strength ksi

Yield Strength (0.2% Offset) Ksi

Elongation in 4D(%)

% Reduction of Area

Alloy X-750 Bar

Under 4.0"

165.0

105

20

25

Alloy X-750 Bar

4.0 " and over

160

100

15

17

Properties as described in AMS 5667 which requires that material following 1625°F/24 hrs, AC-Equalising + precipitation treatment have the following minimum room temperature properties. Hardness will lie in the range of 302-363 BHN

Rod, Bars and Forgings are available with the following heat treatments

AMS 5667 - 1625°F/24hr, AC + 1300°F/20 hr, AC (Equalising plus precipitation treatment). AMS 5667 Rod, Bars and Forgings have high strength and notch rupture ductility up to 1100°F

AMS 5668 - 2100°F anneal + 1550°F/24 hr, AC, +1300°F/20hr, AC (triple heat treatment). AMS 5668 has maximum creep, relaxation and rupture strength above about 1100°F. 

AMS 5670 - 1800°F anneal + 1350°F/8hr, FC to 1150°F. Hold at 1150°F for total precipitation-treating time 18 hr, AC (solution treatment plus furnace cool precipitation treatment). Due to the heat treatments AMS 5670, AMS 5671 and AMS 5747 have increased tensile properties and reduced heat treatment time service up to about 1100°F.

With a heat treatment of 1800°F anneal + 1400°F/1hr, FC to 1150°F, hold at 1150°F for total precipitation-treating time of 6 hr, AC (solution treatment plus short furnace-cool precipitation treatment). This treatment of short furnace cool aging achieves only slightly lower properties than does AMS 5670 and AMS 5671.

Rods and Bars X-750 is available from 1/2" diameter to 6" diameter in 1/4" increments. From 6" diameter to 10" diameter it is available in 1/2" increments. 

Material

Size

Tensile Strength ksi

Yield Strength (0.2% Offset) Ksi

Elongation in 2"(%)

% Hardness Rc

Alloy X-750 Sheet
Annealed Condition

0.010 to 0.024", incl

140 max

-

30 min

-

Alloy X-750 Sheet
Annealed Condition

over 0.024 - 0.125" incl

130 max

60 max

40 min

-

Alloy X-750 Sheet
Annealed Condition

over 0.125 - 0.250 incl

130 max

65 max

40 min

-

Alloy X-750 Sheet
After Precipitation Treating (1300°F/20hr, A.C)

0.010 to 0.025 incl

165 min

105 min

20 min

32 min

Alloy X-750 Plate
After Precipitation Treating (1300°F/20hr, A.C)

0.187 to 4.000, excl

155 min

100 min

20 min

30 min

Sheet, Strip and Plate are available with the following heat treatments

AMS 5542 - 1300°F/20hr, AC (Constant-temperature precipitation treatment). AMS 5542 has high strength up to 1300°F

AMS 5598 - 1350°F/8hr, FC to 1150°F, hold at 1150°F for total precipitation-treating time of 18hr, AC (furnace-cool precipitation treatment. AMS 5598 has high strength up to 1300°F (Increased tensile properties to about 1100°F).

With heat treatment 1400°F/1hr, FC to 1150°F hold at 1150°F for total time of 6hr, AC (short furnace-cool precipitation treatment).

Material

Tensile Strength ksi

Yield Strength ksi

Elongation in 4D(%)

% Reduction of Area

Hardness

inconel x750 spring 
N07752 Type 1

160-185

100-130

20

20

27-40 HRC

Alloy X-750 Heat Treatment - Solution Treat 1.2 hrs @ 1975°F and Air Cool
Precipitation Heat Treat 20 hrs @ 1320°F and Air Cool

UNS N07752 is available in billet for forging. UNS N07752 has limits on the Carbon and Cobalt levels (each has a maximum of 0.05%).

inconel x750 spring Specifications

Rod

ASTM B 637, ASME SB 637, ISO 9723, ISO9724, ISO9725, AMS 5667, AMS 5668, AMS 5669, AMS 5670, AMS 5671, AMS 5747, EN10269

Bar

ASTM B 637, ASME SB 637, ISO 9723, ISO9724, ISO9725, AMS 5667, AMS 5668, AMS 5669, AMS 5670, AMS 5671, AMS 5747, EN10269

Forging Stock

ASTM B 637, ASME SB 637, ISO 9723, ISO9724, ISO9725, AMS 5667, AMS 5668, AMS 5669, AMS 5670, AMS 5671, AMS 5747, EN10269

Plate

ISO 6208, AMS 5542 and AMS 5598

Sheet

ISO 6208, AMS 5542 and AMS 5598

Strip

ISO 6208, AMS 5542 and AMS 5598

Wire

BS HR 505, AMS 5698, AMS 5699

Other

UNS N07750, W.Nr 2.4669, inconel x750 spring (tradename), UNS N07752


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