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X6CrNiMoB17-12-2 Application:Fasteners with stainless steel and nickel alloy for high temperature and low temperature (NF-EN 10269(1999))
Category Type Steel grade Standard Country
Grades Special Alloy X6CrNiMoB17-12-2 AFNOR France

Chemical composition % of the ladle analysis of grade X6CrNiMoB17-12-2

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Mo(%) N(%) B(%)
0.04-0.08 Max 1.00 Max 2.00 Max 0.035 Max 0.015 16.5-18.5 10.0-13.0 2.00-2.50 Max 0.11 0.0015-0.0050
X6CrNiMoB17-12-2
Mechanical properties of grade X6CrNiMoB17-12-2
Proof strength
Rp0.2 (MPa)
Tensile strength
Rm (MPa)
Impact energy
KV (J)
Elongation at fracture
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
974 (≥) 976 (≥) 24 24 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 321
Physical properties of grade X6CrNiMoB17-12-2
Property Density
kg/dm3
Temperature T
°C/F
Specific heat
J / kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
Modulus of elasticity
kN/mm2
Expansion rate
845 (≥) 522 (≥) 11 32 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 213
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
651 521 751
X6CrNiMoB17-12-2 Range of products
Product type Products Dimension Processes Deliver Status
Plates / Sheets Plates / Sheets 0.08-200mm(T)*W*L Forging, hot rolling and cold rolling Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Steel Bar Round Bar, Flat Bar, Square Bar Φ8-1200mm*L Forging, hot rolling and cold rolling, Cast Black, Rough Turning, Shot Blasting,
Coil / Strip Steel Coil /Steel Strip 0.03-16.0x1200mm Cold-Rolled & Hot-Rolled Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Pipes / Tubes Seamless Pipes/Tubes, Welded Pipes/Tubes OD:6-219mm x WT:0.5-20.0mm Hot extrusion, Cold Drawn, Welded Annealed, Solution and Aging, Q+T, ACID-WASHED
Cross Reference Table(Equivalent Grade)
Grade Standard Country Application
X6CrNiMoB17-12-2 AFNOR France
Creep resisting steels, nickel and cobalt alloys
1.4919 AFNOR France
Creep resisting steels, nickel and cobalt alloys

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