Grade 17

Datasheet
ASTM Grade (UNS No.) GRADE 17 (R52252)
Chemical Composition
(Max. values unless range is shown)
(wt. %) 0.08C; 0.03N; 0.18O; 0.20Fe; 0.04-0.08Pd; 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 * bar, billet, forgings only
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 (15)
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