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A369 Grade FP91

America ASTM A369GradeFP91 高温钻孔锻造碳和铁素体合金钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: A369GradeFP91 / A369 Grade FP91
Category Grade Standard Region/Area Standard Content
Metals A369 Grade FP91 ASTM A369/A369M America 高温钻孔锻造碳和铁素体合金钢

Chemical composition(mass fraction)(wt.%) of the A369 Grade FP91

Element Min Max Similar
Zr - 0.0100 -
V 0.1800 0.2500 -
Ti - 0.0100 -
Si 0.2000 0.5000 -
S - 0.0250 -
P - 0.0250 -
Other - - -
Ni+Mn - 1.0000 -
Ni - 0.4000 -
Nb 0.0600 0.1000 -
N 0.0300 0.0700 -
Mo 0.8500 1.0500 -
Mn 0.3000 0.6000 -
Cr 8.0000 9.5000 -
C 0.0800 0.1200 -
Al - 0.0200 -

Mechanical Properties of steel grade A369 Grade FP91

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV/Ku (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
668 (≥) 811 (≥) 22 34 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 234

Physical Properties of steel grade A369 Grade FP91

Temperature
(°C)
Modulus of elasticity
(GPa)
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)
Specific thermal capacity
(J/kg·°C)
Specific electrical resistivity
(Ω mm²/m)
Density
(kg/dm³)
Poisson’s coefficient, ν
12 - -     0.11 -  
113 558 - 41.3 414   -  
821 - 41 14.2   244 314

Heat Treatment of steel grade A369 Grade FP91

Heat treated : 1246°C - 1555°C

Technological Curves of steel grade A369 Grade FP91

Cross Reference Table (Equivalent Grade) of A369 Grade FP91

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