Grade 23
Datasheet
| ASTM Grade (UNS No.) | GRADE 23 (R56407) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Chemical Composition (Max. values unless range is shown) | (wt. %) | 0.08C; 0.03N; 0.13O; 0.25Fe; 5.5-6.5Al; 3.5-4.5V; 0.0125H | ||||||||
| TENSILE PROPERTIES | Guar.R.T. Min*. | Guar.R.T. Min**. | Typical Elevated Temperature Properties | |||||||
| 93˚C (200˚F) | 149°C(300°F) | 204°C(400°F) | 260°C(500°F) | |||||||
| Ultimate Strength | MPa (ksi) | 862 (125) | 827 (120) | 833 (121) | 770 (112) | 723 (105) | 678 (98) | |||
| Yield Strength, 0.2% offset | MPa (ksi) | 793 (115) | 759 (110) | 712 (103) | 640 (93) | 587 (85) | 532 (77) | |||
| Elongation in 51 mm (2") gage length | (%) | 10 | [7.5(6.0)]**** | 13 | 15 | 16 | 16 | |||
| Reduction in Area - Bar, Billet & Forging only | (%) | 25 | 15 | |||||||
| OTHER MECHANICAL PROPERTIES | * Extra low interstitials ** Per ASTM F136 specification *** Per ASTM "B" product specifications **** Transformed-beta condition |
|||||||||
| Stress to Rupture in Time Shown | Stress | MPa (ksi) | ||||||||
| Time-Hrs. at Temp. (˚C) | ||||||||||
| Stress &Time to Produce Elongation Shown (creep) | Stress | MPa (ksi) | ||||||||
| Time-Hrs. at Temp. (˚C) | ||||||||||
| Creep | (%) | |||||||||
| Charpy V-Notch Impact @ R.T. | Joules (ft-lbs) | 24- 40 (18 - 30) | ||||||||
| Bend Radius | Under 1.78 mm (0.070") thick | 4.5 x Thickness | ||||||||
| 1.78 mm (0.070") and over | 5.0 x Thickness | |||||||||
| Welded Bend Radius | 6 - 10 x Thickness | |||||||||
| Nominal Hardness | 32 HRC | |||||||||
| PHYSICAL PROPERTIES | ||||||||||
| Nominal Beta Transus | °C (°F) | 982 (1800) | ||||||||
| Coefficient of Thermal Expansion 10-6/˚C (10-6/˚F) | 0-100˚C (32 -212˚F) | 9.2 (5.1) | ||||||||
| 0-315˚C (32-600˚F) | 9.5 (5.3) | |||||||||
| 0-538˚C (32-1000˚F) | 10.1 (5.6) | |||||||||
| 0-648˚C (32-1200˚F) | 10.4 (5.8) | |||||||||
| 0-816˚C (32-1500˚F) | 10.8 (6.0) | |||||||||
| Density | g/cm3 (lbs/in3) | 4.43 (0.160) | ||||||||
| Melting Point, Approx. | °C (°F) | 1650 (3000) | ||||||||
| Electrical Resistivity @ R.T. | 10-6 ohm•cm (10-6 ohm•in) | 165 (65) | ||||||||
| Modulus of Elasticity – Tension | GPa (103 ksi) | 114 (16.5) | ||||||||
| Modulus of Elasticity – Torsion | GPa (103 ksi) | 42.8 (6.2) | ||||||||
| Thermal Conductivity | W/m•˚C (BTU/hr•ft•˚F) | 7.3 (4.2) | ||||||||
| Specific Heat | J/Kg•˚C (BTU/lb•˚F) | 565 (0.135) | ||||||||
| Weldability | Very Good | |||||||||
| Industry Specifications | ASTM - B265, B348, B363, B381, B861, B862 and F136; AMS - 4907, 4930 and 4956 | |||||||||