EN 1.0255 (P235TR2) Non-Alloy Steel
Carbon & Non-Alloy Steels
Property Overview
Density7.8g/cm³
Elastic Modulus190GPa
Tensile Strength430MPa
Yield Strength235MPa
Brinell Hardness120HB
Maximum Service Temperature400°C
Mechanical
A - Min. elongation at fracture (%) longitud.,
25
A - Min. elongation at fracture (%) transverse,
23
Elastic (Young's, Tensile) Modulus
190 GPa
Impact Strength: V-Notched Charpy
38 J
KV - Impact energy (J) longitud.,
0° 40
KV - Impact energy (J) longitud.,
-10° 28
KV - Impact energy (J) transverse,
0° 27
ReH - Minimum yield strength (MPa)
235
ReH - Minimum yield strength (MPa)
225
ReH - Minimum yield strength (MPa)
215
Rm - Tensile strength (MPa)
360-500
Tensile Strength: Ultimate (UTS)
430 MPa
Tensile Strength: Yield (Proof)
250 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
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
40 W/m-K
Thermal Diffusivity
11 mm 2 /s
Thermal Expansion
12 µm/m-K
Thermal Shock Resistance
14 points
Electrical
Electrical Conductivity: Equal Volume
7.7 % IACS
Electrical Conductivity: Equal Weight (Specific)
8.8 % IACS
Other
Nominal thickness (mm):
to 60
Nominal thickness (mm):
to 16
Nominal thickness (mm):
16 - 40
Nominal thickness (mm):
40 - 60
Calculated
Resilience: Ultimate (Unit Rupture Work)
100 MJ/m 3
Resilience: Unit (Modulus of Resilience)
160 kJ/m 3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
24 points
Strength to Weight: Axial
15 points
Strength to Weight: Bending
16 points
Environmental
Base Metal Price
2.1 % relative
Embodied Carbon
1.5 kg CO 2 /kg material
Embodied Energy
19 MJ/kg 8.4 x 10 3 BTU/lb
Embodied Water
49 L/kg 5.8 gal/lb
Registered Designations & Aliases
1.02551.0255EN 1.0255 (P235TR2) Non-Alloy SteelP235TR2P235TR2
Standards
EN 10216-1 EN 10216-1: 2014 Seamless steel tubes for pressure purposes. Technical delivery conditions. Non-alloy steel tubes with specified room temperature properties
EN 10216-1 EN 10216-1: Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 1: Non-alloy steel tubes with specified room temperature properties
EN 10216-1 EN 10216-1: Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 1: Non-alloy steel tubes with specified room temperature properties EN 10217-1: Welded steel tubes for pressure purposes - Technical delivery conditions - Part 1: Non-alloy steel tubes with specified room temperature properties
EN 10217-1 EN 10217-1: 2002 Welded steel tubes for pressure purposes. Non-alloy steel tubes with specified room temperature properties
EN 10217-1 EN 10217-1: Welded steel tubes for pressure purposes - Technical delivery conditions - Part 1: Non-alloy steel tubes with specified room temperature properties
EN 10253-2 EN 10253-2: 2007 Butt-welding pipe fittings. Non alloy and ferritic alloy steels with specific inspection requirements