EN 1.0426 (P280GH) Non-Alloy Steel
Carbon & Non-Alloy Steels
Property Overview
Density7.8g/cm³
Elastic Modulus190GPa
Tensile Strength520MPa
Yield Strength280MPa
Brinell Hardness150HB
Maximum Service Temperature400°C
Chemical Composition
C
0.080 to 0.2%
MN
0.9 to 1.5%
SI
0 to 0.4%
P
0 to 0.025%
S
0 to 0.015%
FE
97.9 to 99.02%
Mechanical
A - Min. elongation at fracture (%) longitud.,
23
A - Min. elongation at fracture (%) transverse,
21
Elastic (Young's, Tensile) Modulus
190 GPa
Elongation at Break
25 %
Fatigue Strength
210 MPa
Impact Strength: V-Notched Charpy
42 J
KV - Impact energy (J) longitud.,
+20° 48
KV - Impact energy (J) transverse,
+20° 27
Poisson's Ratio
0.29
ReH - Minimum yield strength (MPa)
280
ReH - Minimum yield strength (MPa)
255
Rm - Tensile strength (MPa)
460-580
Shear Modulus
73 GPa
Shear Strength
330 MPa
Tensile Strength: Ultimate (UTS)
520 MPa
Tensile Strength: Yield (Proof)
290 MPa
Hardness
+A Soft annealed +AC Annealed to achieve spheroidization of the carbides +AR As rolled +AT Solution annealed +C Cold drawn / hard +CR Cold rolled +FP Treated to ferrite-pearlite structure and hardness range +I Isothermal annealing +LC Cold drawn / soft +M Thermo mechanical rolling +N Normalized +NT Normalized and tempered
+P Precipitation hardened +PE Peeled +QA Air quenched and tempered +QL Liquid quenched and tempered +QT Quenched and tempered +S Treated to improve shearability +SH As rolled and turned +SR Cold drawn and stress relieved +T Tempered +TH Treated to hardness range +WW Warm worked +U Untreated
+A
Brinell Hardness
150
Physical
Density
7.8 g/cm 3
Thermal
Latent Heat of Fusion
250 J/g
Maximum Temperature: Mechanical
400 °C
Melting Completion (Liquidus)
1460 °C
Melting Onset (Solidus)
1420 °C
Specific Heat Capacity
470 J/kg-K
Thermal Conductivity
51 W/m-K
Thermal Diffusivity
14 mm 2 /s
Thermal Expansion
12 µm/m-K
Thermal Shock Resistance
16 points
Electrical
Electrical Conductivity: Equal Volume
7.1 % IACS
Electrical Conductivity: Equal Weight (Specific)
8.2 % IACS
Other
Nominal thickness (mm):
to 35
Nominal thickness (mm):
35 - 160
Calculated
Resilience: Ultimate (Unit Rupture Work)
110 MJ/m 3
Resilience: Unit (Modulus of Resilience)
230 kJ/m 3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
24 points
Strength to Weight: Axial
18 points
Strength to Weight: Bending
18 points
Environmental
Base Metal Price
1.9 % relative
Embodied Carbon
1.4 kg CO 2 /kg material
Embodied Energy
19 MJ/kg
Embodied Energy
19 MJ/kg 8.0 x 10 3 BTU/lb
Embodied Water
47 L/kg
Embodied Water
47 L/kg 5.6 gal/lb
Registered Designations & Aliases
1.04261.0426EN 1.0426 (P280GH) Non-Alloy SteelP280GHP280GH
Standards
EN 10222-2 EN 10222-2: 2000 Steel forgings for pressure purposes. Ferritic and martensitic steels with specified elevated temperature properties
EN 10222-2 EN 10222-2: Steel forgings for pressure purposes - Part 2: Ferritic and martensitic steels with specified elevated temperature properties
EN 10222-2 EN 10222-2: Steel forgings for pressure purposes - Part 2: Ferritic and martensitic steels with specified elevated temperature properties Creep-Resistant Steels, Fujio Abe et al. (editors), 2008