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Description

17-4 PH High Alloy and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:High Alloy: 17-4 PH
Category Type Steel Grade Standard Country Application
Steel GradesHigh Alloy 17-4 PH
7Mo Plus
9Cr-1Mo-V-Cb-N
12-2W
13Cr-4Ni
14-4PH
14Cr-4Mo
15-5PH
15-15 LC
16-8-2H
16-25-6

Chemical composition(mass fraction)(wt.%) of the 17-4 PH

C
Si
Mn
P
S
Cr Ni
0.04 0.60 0.28     16.0 4.25
Mo Al Cu Nb Ti V Ce
    3.30 0.27      
N Co Pb B Other    
        Fe...    
             

Mechanical Properties of steel grade 17-4 PH

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)
421 (≥) 441 (≥) 13 24 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 241

Physical Properties of steel grade 17-4 PH

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
43 - -     0.22 -  
163 314 - 42.3 411   -  
144 - 13 43.2   233 421

Heat Treatment of steel grade 17-4 PH

Heat treated : 1234°C - 1253°C

Technological Curves of steel grade 17-4 PH

Cross Reference Table (Equivalent Grade) of 17-4 PH

Grade Standard Country Application
17-4PH USA Martensitic special steel
17-4PH USA Martensitic special steel
PH13-8Mo UNS USA Martensitic special steel
PH13-8Mo UNS USA Martensitic special steel
PH14-8Mo UNS USA Martensitic special steel
PH14-8Mo UNS USA Martensitic special steel
PH15-7MO(Type632) UNS USA Martensitic special steel
PH15-7MO(Type632) UNS USA Martensitic special steel
15-5PH UNS USA Martensitic special steel
15-5PH UNS USA Martensitic special steel
17-7PH UNS USA precipitation hardening
17-7PH UNS USA precipitation hardening
UnitempHS AISI USA Martensitic special steel
V-GRAPH Brazil Stainless steel
SPHT1 China China Taiwan Structural steel
SPHT2 China China Taiwan Structural steel
SPHT3 China China Taiwan Structural steel
SPHT4 China China Taiwan Structural steel

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