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EN 1.7380 Details

1.7380 Application:Alloy special steel

Category Type Grade Designations
Grades Stainless Steels 1.7380 European - EN , EN 10028-2: 2009 - Flat products made of steels for pressure purposes. Non-alloy and alloy steels with specified elevated temperature properties
EN 10216-2: 2014 - Seamless steel tubes for pressure purposes. Technical delivery conditions. Non-alloy and alloy steel tubes with specified elevated temperature properties
EN 10253-2: 2007 - Butt-welding pipe fittings. Non alloy and ferritic alloy steels with specific inspection requirements
EN 10273: 2007 - Hot rolled weldable steel bars for pressure purposes with specified elevated temperature properties

Chemical composition(wt.%) of 1.7380 grade: EN 10028-2: 2009

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.08 0.14
Si - 0.5
Mn 0.4 0.8
P - 0.020
S - 0.010
Cr 2.00 2.50
Mo 0.90 1.10
N - 0.012
Cu - 0.3
P250GH

Mechanical properties of grade 1.7380 EN 10028-2: 2009

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)
363 (≥) 147 (≥) 42 22 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 324

Physical properties of grade 1.7380 EN 10028-2: 2009

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
413 (≥) 938 (≥) 34 32 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 413
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
877 213 231

1.7380 - 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
1.7380 EN European
Alloy special steel
10CrMo9-10 EN European
Alloy special steel

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