EN 1.4986 (X7CrNiMoBNb16-16) Stainless Steel
Other Steels
Property Overview
Density7.9g/cm³
Elastic Modulus200GPa
Tensile Strength750MPa
Yield Strength500MPa
Brinell Hardness230HB
Maximum Service Temperature940°C
Chemical Composition
C
0.040 to 0.1%
CR
15.5 to 17.5%
NI
15.5 to 17.5%
MO
1.6 to 2.0%
MN
0 to 1.5%
SI
0.3 to 0.6%
P
0 to 0.045%
S
0 to 0.030%
NB
0.4 to 1.2%
B
0.050 to 0.1%
FE
59.4 to 66.6%
Mechanical
A - Min. elongation at fracture (%) (+AT)
16
+AT
Elastic (Young's, Tensile) Modulus
200 GPa
Elongation at Break
18 %
Fatigue Strength
350 MPa
Impact Strength: V-Notched Charpy
57 J
KV - Impact energy (J) (+WW)
+20° 50
+WW
Poisson's Ratio
0.28
R p0.2 0.2% proof strength (MPa) (+WW)
500
+WW
Rm - Tensile strength (MPa) (+WW)
650-850
+WW
Shear Modulus
77 GPa
Shear Strength
460 MPa
Tensile Strength: Ultimate (UTS)
750 MPa
Tensile Strength: Yield (Proof)
560 MPa
Hardness
+A Soft annealed +AC Annealed to achieve spheroidization of the carbides +AR As rolled +AT Solution annealed +C Cold drawn / hard +CR Cold rolled +FP Treated to ferrite-pearlite structure and hardness range +I Isothermal annealing +LC Cold drawn / soft +M Thermo mechanical rolling +N Normalized +NT Normalized and tempered
+P Precipitation hardened +PE Peeled +QA Air quenched and tempered +QL Liquid quenched and tempered +QT Quenched and tempered +S Treated to improve shearability +SH As rolled and turned +SR Cold drawn and stress relieved +T Tempered +TH Treated to hardness range +WW Warm worked +U Untreated
+A
Brinell Hardness
230
Physical
Density
7.9 g/cm 3
Thermal
Latent Heat of Fusion
290 J/g
Maximum Temperature: Corrosion
520 °C
Maximum Temperature: Mechanical
940 °C
Melting Completion (Liquidus)
1450 °C
Melting Onset (Solidus)
1400 °C
Specific Heat Capacity
470 J/kg-K
Thermal Conductivity
15 W/m-K
Thermal Diffusivity
4.0 mm 2 /s
Thermal Expansion
17 µm/m-K
Thermal Shock Resistance
16 points
Electrical
Electrical Conductivity: Equal Volume
2.3 % IACS
Electrical Conductivity: Equal Weight (Specific)
2.6 % IACS
Calculated
PREN (Pitting Resistance)
22
Resilience: Ultimate (Unit Rupture Work)
120 MJ/m 3
Resilience: Unit (Modulus of Resilience)
790 kJ/m 3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
24 points
Strength to Weight: Axial
26 points
Strength to Weight: Bending
23 points
Environmental
Base Metal Price
25 % relative
Embodied Carbon
4.8 kg CO 2 /kg material
Embodied Energy
67 MJ/kg
Embodied Energy
67 MJ/kg 29 x 10 3 BTU/lb
Embodied Water
150 L/kg
Embodied Water
150 L/kg 18 gal/lb
Registered Designations & Aliases
1.49861.4986EN 1.4986 (X7CrNiMoBNb16-16) Stainless SteelX7CrNiMoBNb16-16X7CrNiMoBNb16-16
Standards
EN 10088-1 EN 10088-1: 2005 Stainless steels. List of stainless steels
EN 10088-1 EN 10088-1: Stainless steels - Part 1: List of stainless steels
EN 10269 EN 10269: 1999 Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties
EN 10269 EN 10269: Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties
EN 10269 EN 10269: Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties Machining of Stainless Steels and Super Alloys: Traditional and Nontraditional Techniques, Helmi A. Youssef, 2016 EN 10088-1: Stainless steels - Part 1: List of stainless steels