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| X750 Alloy is an age-hardenable material, used for its good Creep-Rupture strength at elevated temperatures up to 1500F. It also has a high resistance to oxidation & corrosion. X750 Alloy is used in applications that require optimum resistance to relaxation in springs operating at temperatures up to about 1200F |
| Common specifications used for X750 Alloy are AMS 5699 and AMS 5698. |
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| Chemical requirements AMS 5698F and AMS 5699F |
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| Elements |
| N |
| Cr |
| Fe |
| Mn |
| Cb |
| Ti |
| Al |
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| Comp. % |
| 70.0 min. |
| 14.0-17.0 |
| 5.0-9.0 |
| 1.0 max. |
| .70-1.20 |
| 2.25-2.75 |
| .40-1.00 |
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| Comp. % |
| .08 max. |
| .50 max. |
| .50 max. |
| .010 max. |
| 1.0 max. |
| .05 max. |
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| Density/lbs/cu in. |
| Modulus of elasticity,psi |
| Tension |
| Torsion |
| Poisson Ratio |
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| .298 |
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| 31,000,000 |
| 11,000,000 |
| .29 |
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| Tensiles per AMS 5698 |
| As drawn |
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| Min. Max. |
| ----- 150 ksi |
| 130 ksi 165 ksi |
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| Size |
| Up to .025, incl. |
| over .025 to .500 incl. |
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| After Precipitation Heat Treatment |
| (1350 F for 16 hours) |
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| Size |
| Up to .025 incl. |
| over .025 to .500 incl. |
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| Min. tensiles |
| 155 ksi |
| 165 ksi |
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| Tensiles per AMS 5699 |
| As drawn |
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| Size |
| Up to .250, incl. |
| over .250 to .625 incl. |
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| Min. tensiles |
| 190 ksi |
| 160 ksi |
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| After Precipitation Heat Treatment |
| Short cycle (1200 F for 4 hours) |
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| Size |
| .012 to .250 incl. |
| over .250 to .418 incl. |
| over .418 to .625 incl. |
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| Min. tensiles |
| 220 ksi |
| 200 ksi |
| 180 ksi |
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| After Precipitation Heat Treatment |
| Long cycle (2100 F for 2 hours + 1550 F for 24 hours + 1300 F for 20 hours) |
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| Size |
| Up to .250, incl. |
| over .250 to .625 incl. |
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| Min. tensiles |
| 150 ksi |
| 145 ksi |
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| The information and data presented herein are typical or average values and are not guarantee of maximum or minimum values. Applications specifically suggested for material described herein are made solely for the purpose of illustration to enable the reader to make his own evaluation and are not intended as warranties, either express or implied, of fitness for these or other purposes. |
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| PHONE (203)281-1522 // FAX (203)287-0851 OR (800)611-9993 |
| OR E-MAIL hmsinc@hamdenmetal.com |
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