Grade 16

Datasheet
ASTM Grade (UNS No.) GRADE 16 (R52402)
Chemical Composition
(Max. values unless range is shown)
(wt. %) 0.08C; 0.03N; 0.25O; 0.30Fe; 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) 345 (50) 393 (57) 283 (41) 221 (32)
Yield Strength, 0.2% offset MPa (ksi) 276 (40) 276 (40) 166 (24) 103 (15)
Elongation in 51 mm (2″) gage length (%) 20 28 41 38
Reduction in Area – Bar, Billet & Forging only (%) 30* 40 55 75
OTHER MECHANICAL PROPERTIES * bar, billet, forgings only
Stress to Rupture in Time Shown Stress MPa (ksi) 276 (40) 240 (35) 117 (17)
Time-Hrs. at Temp. (˚C) 10,000 (100) 10,000 (150) 1,000 (250)
Stress &Time to Produce Elongation Shown (creep) Stress MPa (ksi) 209 (30) 179 (26) 103 (15)
Time-Hrs. at Temp. (˚C) 1,000 (25) 1,000 (150) 1,000 (250)
Creep (%) 1.0 1.0 1.0
Charpy V-Notch Impact @ R.T. Joules (ft-lbs) 40 – 82 (30 – 60)
Bend Radius Under 1.78 mm (0.070″) thick 2.0 x Thickness
1.78 mm (0.070″) and over 2.5 x Thickness
Welded Bend Radius 2.5 – 3.0 x Thickness
Nominal Hardness 82 HRB
PHYSICAL PROPERTIES
Nominal Beta Transus °C (°F) 913 (1675)
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) 9.7 (5.4)
0-648˚C (32-1200˚F) 10.1 (5.6)
0-816˚C (32-1500˚F) 10.1 (5.6)
Density g/cm3 (lbs/in3) 4.51(0.163)
Melting Point, Approx. °C (°F) 1660 (3020)
Electrical Resistivity @ R.T. 10-6 ohm•cm (10-6 ohm•in) 56 (22)
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