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EN P250GH Details

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P250GH Application:Non-alloy quality steel

Category Type Grade Microstructure Designations
Grades Stainless Steels P250GH Martensite European - EN , EN 10273: 2007 - Hot rolled weldable steel bars for pressure purposes with specified elevated temperature properties

Chemical composition(wt.%) of P250GH grade: EN 10273: 2007

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.18 0.23
Si - 0.4
Mn 0.3 0.9
Ni - 0.3
P - 0.025
S - 0.015
Cr - 0.3
Ti - 0.03
N 0.03 0.07
Nb - 0.010
Al 0.0015 0.05
V - 0.02
other - Cr+Cu+Mo+Ni < 0.7
P250GH

Mechanical properties of grade P250GH EN 10273: 2007

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)
111 (≥) 191 (≥) 11 41 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 233

Physical properties of grade P250GH EN 10273: 2007

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
189 (≥) 154 (≥) 23 34 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 231
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
588 493 476

P250GH - Form of Supply

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
1.0460 EN European
Non-alloy quality steel
P250GH EN European
Non-alloy quality steel

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