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X7CrNiMoBNb16-6 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 X7CrNiMoBNb16-6 AFNOR France

Chemical composition % of the ladle analysis of grade X7CrNiMoBNb16-6

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Mo(％) B(%) Other(%)
0.04-0.10 0.30-0.60 Max 1.50 Max 0.045 Max 0.030 15.5-17.5 15.5-17.5 1.60-2.00 0.05-0.10 Nb+Ta 10XC% Max 1.20
X7CrNiMoBNb16-6
Mechanical properties of grade X7CrNiMoBNb16-6
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)
952 (≥) 684 (≥) 21 31 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 232
Physical properties of grade X7CrNiMoBNb16-6
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
583 (≥) 722 (≥) 44 44 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 212
Temp.
°C/°F		 Creep strain limit
(10000h)
(Rp1,0) N/mm2		 Creep rupture strength
(10000h)
(Rp1,0) N/mm2
187 885 945
X7CrNiMoBNb16-6 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
X7CrNiMoBNb16-6 AFNOR France
Creep resisting steels, nickel and cobalt alloys

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