Grade 11
Datasheet
| ASTM Grade (UNS No.) | GRADE 11 (R52250) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Chemical Composition (Max. values unless range is shown) | (wt. %) | 0.08C; 0.03N; 0.18O; 0.20Fe; 0.12-0.25Pd; 0.015H | ||||||||
| TENSILE PROPERTIES | Guar.R.T. Min. | Typical Elevated Temperature Properties | ||||||||
| 93˚C (200˚F) | 204˚C (400˚F) | 315˚C (600˚F) | ||||||||
| Ultimate Strength | MPa (ksi) | 241 (35) | 262 (38) | 200 (29) | 159 (23) | |||||
| Yield Strength, 0.2% offset | MPa (ksi) | 172 (25) | 138 (20) | 97 (14) | 83 (12) | |||||
| Elongation in 51 mm (2") gage length | (%) | 24 | 40 | 38 | 48 | |||||
| Reduction in Area - Bar, Billet & Forging only | (%) | 30 | ||||||||
| OTHER MECHANICAL PROPERTIES | ||||||||||
| Stress to Rupture in Time Shown | Stress | MPa (ksi) | 195 (28) | 152 (22) | 97 (14) | |||||
| Time-Hrs. at Temp. (˚C) | 10,000 (100) | 10,000 (200) | 1,000 (250) | |||||||
| Stress &Time to Produce Elongation Shown (creep) | Stress | MPa (ksi) | 90 (13) | |||||||
| Time-Hrs. at Temp. (˚C) | 1,000 (250) | |||||||||
| Creep | (%) | 1.0 | ||||||||
| Charpy V-Notch Impact @ R.T. | Joules (ft-lbs) | 95 - 162 (70 - 120) | ||||||||
| Bend Radius | Under 1.78 mm (0.070") thick | 1.5 x Thickness | ||||||||
| 1.78 mm (0.070") and over | 2.0 x Thickness | |||||||||
| Welded Bend Radius | 1.5 - 2.0 x Thickness | |||||||||
| Nominal Hardness | 70 HRB | |||||||||
| PHYSICAL PROPERTIES | ||||||||||
| Nominal Beta Transus | °C (°F) | 890 (1630) | ||||||||
| Coefficient of Thermal Expansion 10-6/˚C (10-6/˚F) | 0-100˚C (32 -212˚F) | 8.6 (4.8) | ||||||||
| 0-315˚C (32-600˚F) | 9.2 (5.1) | |||||||||
| 0-538˚C (32-1000˚F) | 9.5 (5.3) | |||||||||
| 0-648˚C (32-1200˚F) | 9.9 (5.5) | |||||||||
| 0-816˚C (32-1500˚F) | 9.9 (5.5) | |||||||||
| Density | g/cm3 (lbs/in3) | 4.51(0.163) | ||||||||
| Melting Point, Approx. | °C (°F) | 1670 (3040) | ||||||||
| Electrical Resistivity @ R.T. | 10-6 ohm•cm (10-6 ohm•in) | 54 (21) | ||||||||
| Modulus of Elasticity – Tension | GPa (103 ksi) | 103 (14.9) | ||||||||
| Modulus of Elasticity – Torsion | GPa (103 ksi) | 41 (6.0) | ||||||||
| Thermal Conductivity | W/m•˚C (BTU/hr•ft•˚F) | 20.8 (12.0) | ||||||||
| Specific Heat | J/Kg•˚C (BTU/lb•˚F) | 520 (0.124) | ||||||||
| Weldability | Excellent | |||||||||
| Industry Specifications | ASTM - B265, B337, B338, B348, B363, B381, B861 and B862 | |||||||||